684 lines
26 KiB
Plaintext
684 lines
26 KiB
Plaintext
From: Digestifier <Linux-Admin-Request@senator-bedfellow.mit.edu>
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To: Linux-Admin@senator-bedfellow.mit.edu
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Reply-To: Linux-Admin@senator-bedfellow.mit.edu
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Date: Thu, 13 Oct 94 03:14:09 EDT
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Subject: Linux-Admin Digest #184
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Linux-Admin Digest #184, Volume #2 Thu, 13 Oct 94 03:14:09 EDT
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Contents:
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printcap entry for a hp560 (Brian Clements)
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Re: Broken pipe,x,client error (Jay Lewis)
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Re: Please don't post security holess... (James A. Robinson)
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Re: Please don't post security holess... (Isis Leslie)
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issue in tcpip login (Champ Clark)
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PCNFS and file locking (Ron Hume)
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Re: Whats wrong with sunsite.unc.edu? (Marcus Bainbridge)
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Telnetd doesn't notice you're gone. (Adrian Miranda)
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Re: [Q] VLB video card (Brian L. Kahn)
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New Adeptec SCSI not detected (Gunter Spranz)
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Re: TERM: a few questions (Patrick Reijnen)
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Re: Telnet & ftp freeze! ("Stephen Davies")
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terminfo vs termcap ("Stephen Davies")
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FTPD and dir/ls ("Stephen Davies")
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Re: LILO & BusLogic 445s (Werner Almesberger)
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Linux on a Laptop using Bootp (Roman Gollent)
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----------------------------------------------------------------------------
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From: bigdog@crl.com (Brian Clements)
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Subject: printcap entry for a hp560
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Date: 11 Oct 1994 20:37:53 -0700
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Hello,
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Can someone help me with a printcap entry. I have got a HP560 inkjet
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printer. I would like to use it as a simple line printer for printing
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text files. When I try to print to it all I get is garbage. Will the
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HP inkjet printers support good ole text files, or does everything have
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to have PCL embedded in it? Another idea I had was to use ghostscript.
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I know ghostscript supports the 500C & 550C printers, but I don't know
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about the 560. Ghostscript sure would be a lot of cycles for just
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printing a text file.
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Can anyone out there offer me some guidance. I would really
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appreciate it.
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Thanx,
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Brian
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brian@bigdog.com
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------------------------------
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From: tssjay@rs6000.cmp.ilstu.edu (Jay Lewis)
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Subject: Re: Broken pipe,x,client error
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Date: Wed, 12 Oct 1994 15:34:39 GMT
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Erich E. Singer (gwues@seas.gwu.edu) wrote:
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: help :
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:
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: XIO :fatal IO error(Broken pipe) on X server ":0.0"
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: after 386 requests(390 known proceeed) with 0
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: events remaning.
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: waiting for X server to shutdown
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: xinit:Unknown error(error 0):client error.
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: .................................................
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: did anybody have the same experience?
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: pls let me know! many thanks!!!
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I get the exact same thing! Any answers out there?
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------------------------------
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From: jimr@plato.simons-rock.edu (James A. Robinson)
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Subject: Re: Please don't post security holess...
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Date: 12 Oct 1994 21:51:53 -0400
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[ Note the follow up. :) ]
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First off, I am not arguing about "security" so much as "privacy"
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here. Keep in mind that I am seeing you as the devil's advocate, so
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don't take my arguments as trying to say YOU personally believe x, y,
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or z.
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In article <37agip$nj3@nntp1.u.washington.edu>,
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>In article <37aa9b$1ob@usenet.ins.cwru.edu>,
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[...]
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>>I would like to consider myself to be a hacker. (Others may disagree -- as
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>>the quote below states, it is a title best given, not taken.) I have never
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>>broken into a system. I do not plan on doing so at any time in the future.
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>>The term `hacker' has been perverted by some to refer to criminals who
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>>attempt to penetrate security on computer systems. This was not the
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>
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>Oh, criminals. Give me a break. The criminals are the ones that mess with
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>things. I consider myself a (wannabe, at least) hacker in the original
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Would you define "messing with things." for me? Is strikes me that
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you don't consider using CPU cycles as messing with things (as you
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state that you use the compiler, and there is "nothing criminal [in
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your eyes] about that." This is where the argument seems to start.
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As seen in the later threads, some people consider their systems the
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same as their homes (in terms of power/equipment use, I think using
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CPU cycles would be the same as flicking the lights on and off really
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quickly). They think that the act of opening the door is a criminal
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violation in and of itself. Do you disagree because you see the
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computer as separate from the "physical reality" of the trespassing
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laws (i.e., this is different because you do not physically visit the
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computer.)? Your argument implies you disagree, but I am not sure of
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the "why" part of it.
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>to get someone in legal trouble who has not destroyed something.
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Out of curiosity (not as an argument!) do you consider "covering
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tracks" destroying something? We've had hackers (perhaps still have
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them) who do neat things like copying over log files in an attempt not
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to be tracked. I am curious about your views...
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>(overused cliche word.) fascist. True, a lot of these system crackers
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>are malicious little bastards... I fully understand the worries
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>involved here. But the criminalization of the curious is pathetic and
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>computer-bureaucrat-like. Let's reserve the word 'criminal' for those
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I see that you can't fault us for being more then a little paranoid.
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I view things like stealing people's passwords as criminal. I view
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these things as personal property. Obviously many of the cracker
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community do not agree with this.
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If somebody paid money for a computer system, and paid even more money
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to hook it up into the Internet, shouldn't they be able to have the
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choice of being left alone? If somebody were to rattle windows and
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doors on my house, I would be pissed off. You claim that the dwelling
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space is not a computer. Well thanks for that tip. :) Yes it is
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obvious that a computer is not a house, apartment, car, pool,
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whatever. The point they are trying to make is that they own the
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computer. That ownership, they believe, gives them the right to say
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who can and can not enter it (or try the doors). For instance, they
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can't argue that the Feds can't open it up and look in it if they have
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probable cause. Since they own this equipment, they have (or believe
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they have) certain (and I hate this word) "rights" that go along with
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it. For arguments sake, lets also group the admins in as the owners.
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They are more then a watchdog and gardener, they are more like
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house-sitters with a vested interest in the house.
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They view "see prompt, type password, see welcome screen, CLICK" as
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"see front door, check doorknob (hey, its open!), open door a bit,
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SLAM." You respond with "Oh, my. I didn't expect this argument. I
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am suddenly enlightened. How facile." I am amused by your words, but
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you don't really tell us why it is not an acceptable argument other
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then the above paragraph which, while being a fact, says nothing about
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the argument that private property is viewed as having certain rights
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attached to it.
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> Lack of flexibility denotes a weak mind.
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Side tracking a bit... No it doesn't. The *inability* to be flexible
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denotes a weak mind, simply deciding *not to be* flexible in case X
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does not. That is what I see here. Most of the admins don't want to
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be flexible because of the paranoia that they must feel when they know
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somebody has broken into their systems.
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> But it's not a dwelling space, and it can be very easily argued (of course,
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> antyhing can be easily argued by most folks) that infringements on a
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> virtual space, a computer system, should not be treated as seriously as
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> those on a dwelling space. It does not need to be argued that these are
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> sigificantly different things.
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>
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> The big one: no physical danger. This is why humans have and have had such
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> a strong reaction to burglars and trespassers in the past.
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>
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> Also: often no "breaking" occurs in situation 2. Can you differentiate
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> a physical space from a virtual one? Sometimes I think the GUI is a bad
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> thing...
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>
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> It is entirely possible to want to fight dogmatic views even when one
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> is on the same side. I don't want anybody crawling around inside my system.
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> I never said I did. I merely said that responses to this sort of thing can
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> be way off the scale.
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What about sensitive data? Private e-mail between lovers?
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Embarrassing porno (you know people have this), any number of
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"private" things that people don't want other to know about? They
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don't want people to even have the *ability* to get near these things
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without their permission. The ability thing is what gets us upset.
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Privacy is a thing that, in "real" life, a house protects. We have
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laws that dissuade people from entering them (or even being in
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proximity of them) without permission. Of course computers do not
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have this protection. Computers are new, people don't fully understand
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them. One person was shocked when I told them that, as the site
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administrator, I had the power to read anything on the system. This
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person was very disturbed that I had that power. In other words, I
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was viewed with the same fear that a stranger, or even a guest of the
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family whom the individual did not know well, would be viewed in the
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person's home.
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Jim
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--
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Jim Robinson Email: jimr@plato.simons-rock.edu
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84 Alford Road Phone: (413) 528-7371
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Great Barrington, MA 01230 Fax: (413) 528-7380
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------------------------------
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From: sheela@er7.rutgers.edu (Isis Leslie)
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Subject: Re: Please don't post security holess...
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Date: 11 Oct 1994 01:57:46 -0400
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I *swear* I didn't know that my post was going to start this....
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Anyway the fact is that if someone wants just anyone to log on to their
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system, they'd create a guest account...
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Computer systems are private property and on a private system you need
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permission to enter. This would also apply to most corperate systems
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as well. However the grey area would be an instance like an online service.
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If it is open to public use, then you have implied permission to be there.
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Some people (or more likely a defense lawyer) might insist that since the
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mail port is open to the public, that you have no right to complain when
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your system is harmed in someway due to someone's activity on the mail port.
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Howver then again, a movie theater certainly doesn't expect someone to
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throw a grenade into their lobby even though it's a public access space.
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Anyway umm...maybe we could get back to the issues of system administration?
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peace-Isis
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------------------------------
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From: c-clark@freenet2.scri.fsu.edu (Champ Clark)
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Subject: issue in tcpip login
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Date: 12 Oct 1994 10:23:37 GMT
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Question:
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I would like a /etc/issue of some type to come up when a person telnets to
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my machine. I am pretty sure I will have to modify login.c or something, whihc
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I have no problem with, but I am having trouble finding this. Is this
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assumption correct? I am using slackware 2.0.0 , if that makes any difference.
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Thanks
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--
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------------------------------
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From: rhume@cygnus.nb.ca (Ron Hume)
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Subject: PCNFS and file locking
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Date: Tue, 11 Oct 1994 18:49:44
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Hi,
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I am running FTP software's PCTCP and Interdrive,
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to mount some of our unix (Linux) boxes from PC's.
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My only problem is that when I PCNFS mount the
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linux drive I get the error message 'No port for remote
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lock manager' or something close to that. I looked
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for a lockd but couldn't find one.
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Any suggestions (am I overlooking one that is included).
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I am using Slackware 2.0.1.
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Ron.
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--
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Ron Hume
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Network Administrator
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Cygnus Telcommunications Engineering Labs
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CANADA
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------------------------------
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From: marcus@guitar.demon.co.uk (Marcus Bainbridge)
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Subject: Re: Whats wrong with sunsite.unc.edu?
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Date: Tue, 11 Oct 1994 21:25:47 +0000
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Nick Kralevich (nickkral@po.EECS.Berkeley.EDU) wrote:
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> I have been trying to access sunsite for the last several days.
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> Sometimes I am able to, but most of the time I get the following
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> error message:
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> 425 Can't create data socket (198.86.40.81,20): Address already in use.
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Does sunsite run a multi-processor Sparcserver? If it does, then the system
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software, Solaris, is buggy. There, that surprised you, didn't it...?
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The European sunsite, src.doc.ic.ac.uk had this problem a few months back.
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Sun got out K&R and re-wrote a bit of code. Since then, these error
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messages have gone.
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If sunsite has more than one IP address (src.doc has 6), then try ftping
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directly to another IP address. This was the semi-official work-around
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while Sun messed about with src.doc.
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--
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Marcus Bainbridge | marcus@guitar.demon.co.uk
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------------------------------
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From: ade@cac.washington.edu (Adrian Miranda)
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Crossposted-To: comp.os.linux.help
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Subject: Telnetd doesn't notice you're gone.
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Date: 8 Oct 1994 00:28:56 GMT
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Reply-To: Adrian Miranda <ade@psg.com>
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I am having an odd problem with Linux and telnet. If I telnet into a
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Linux box from whereever, and my local system is rebooted or goes off
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the net, Linux telnetd never seems to notice that I've gone away. On
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most other systems it appears that telnetd periodically checks if it
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can reach the remote system, and shuts down the connection if it
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can't. The Linux problem appears with both the telnetd that comes
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with slackware 1.2 and the SRA telnetd from net.tamu.edu.
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Does anyone have a solution to this?
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Adrian
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------------------------------
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From: blk@vanity.mitre.org (Brian L. Kahn)
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Subject: Re: [Q] VLB video card
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Date: 12 Oct 1994 15:54:35 GMT
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In article <CxGpCp.KnB@cs.vu.nl> kbbenten@cs.vu.nl (K.B. van Benten) writes:
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How much faster is a VLB video card than my
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8900C /1Mb ? If it's worth it I might buy
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a localbus card....
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I just upgraded from Trident, and I can tell you that even a semi-fast
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card is an astonishing improvement. I found a generic S3 VLB card at
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a show for $65(US) recently, and I find that tests and usage show
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something between 10 to 100 times speedup. I read a bunch of test
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results and I'm not convinced that VLB does more than double the
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speed, if that - maybe the tests aren't a good measure. The new
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chipsets, however, are a really big change.
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Cirrus chips are good and cheap, ATI mach32 and Tseng /32i are very
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good and expensive (maybe $200 US for a board?) and the S3 is very
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good and shows up on both cheap and expensive boards.
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For linux, generic boards may require more work to get running. I
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haven't gotten the server above 800x600 yet. To keep life simple you
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might want to choose from the list for the X version you're using.
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The list for X3.1 is long.
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--
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Brian L. Kahn "In theory, there is no difference between theory and practice.
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blk@mitre.org In practice, of course, there is."
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------------------------------
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From: gunter.spranz@logo.ka.sub.org (Gunter Spranz)
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Subject: New Adeptec SCSI not detected
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Date: Sat, 08 Oct 1994 10:15:55 +0200
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MC> I can't change it. I have other hardware that is using that
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MC> port address. My MMU-401 MIDI card is using 330 and IRQ 2.
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MC> All the MIDI software and games using general MIDI all
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MC> assume 330. If I move the MIDI card to some other address
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MC> and then move the 1542CF to 330 I'll have MIDI software
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MC> sending strange stuff to my SCSI adapter. Some of the MIDI
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MC> software can be configured, but much of it just assumes 330,
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MC> the factory default for MIDI cards.
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334 for your Adaptec should work. The MPU doesn't need more than 4 consecutive
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addresses.
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Gruss,
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Gunter
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------------------------------
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From: patrickr@cs.kun.nl (Patrick Reijnen)
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Subject: Re: TERM: a few questions
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Date: Sun, 9 Oct 1994 10:54:09 GMT
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In <1994Oct7.133551.12907@excaliber.uucp> joel@wam.umd.edu (Joel M. Hoffman) writes:
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>I have a few questions about term and termnet. I got term up and
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>running a few nights ago (see my previous post), and all of the normal
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>clients work fine. I also downloaded termnet, but those clients don't
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>work. They fail for various reasons. XGopher can't find an
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>initialziation file.
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This is true. The initialization file is not in the package. I am told
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that the next version will contain it.
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>Xarchie silently dies. Ytalk can't find any
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>outside addresses, etc. Some program "cannot find term directory."
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Hmm, no problem with all the other clients. Just make sure you are
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running term 2.0.4 or higher. All the clients in the termnet package
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are built using libtermnet 2.00.04. Furthermore, make sure all
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clients are owned by group 'term' or whatever is the name you gave
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to the term stuff.
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>Others can. Are there any docs on these programs. Where did they
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>come from? Where does the term support come from?
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There are no docs on this stuff. These programs are compiled by
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Bill Riemers, the guy who is also the maintainer of the term package.
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As you can see in one of the README's in the termnet package he has
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used normal sources of the clients which he compiled with term support
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, meaning that the makefiles are a bit changed so the programs are
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compiled with libtermnet library and include file termnet.h.
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>Secondly, is is possible to do NFS mounts over term?
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NO, look at the following send to me by Bill Riemers:
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'OK, the basic point is it won't work, and it will take someone clever with
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some extra time on there hands to make it work.
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Here is the problem:
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Like rlogin, and rsh, the NFS server is only supposed to accept requests
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if the socket requesting the connection is bound to a port below 1024.
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I haven't carefully checked how this restriction is implimented, so the
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solution could be as simple as making the mount read-only and squashing
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root. It could be more compilcated like writting a special server to
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interphase, or using the PC-NFS server instead. My understanding is
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Linux's NFS is painfully inefficient (not good at 14.4k) so I haven't
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even seriously tried to solve the problem.
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'
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>Thirdly, I have termncftp running, but I like the ordinary ftp I've
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>come to know and love. Are there any versions that will work with
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>term?
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Yes, there is one in the termnet package. I haven't tried it so I don't
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know if it works.
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>Thanks for any help.
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>-Joel
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>(joel@wam.umd.edu)
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>--
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>-----------------------------------------------------------------------------
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>|_|~~ Germany, Europe. 1943. "The diameter of the bomb was 30 centimeters,
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>__|~| 16 Million DEAD. and the diameter of its destruction, about 7
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> meters, and in it four killed and 11 wounded.
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> cnc Bosnia, Europe. 1993. And around these, in a larger circle of pain
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> cnc HOW MANY MORE? and time, are scattered two hospitals and one
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> cemetery. But the young woman who was buried in
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> the place from where she came, at a distance of more than
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> than 100 kilometers, enlarges the circle considerably. And the
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> lonely man who is mourning her death in a distant country incorporates
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>into the circle the whole world. And I won't speak of the cry of the orphans
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>that reaches God's chair and from there makes the circle endless and godless."
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>-----------------------------------------------------------------------------
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> Tell Clinton to stop the genocide: president@whitehouse.gov
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Patrick REijnen
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--
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************************* Patrick Reijnen *************************
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* Department of Computer Science, Catholic University of Nijmegen *
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* Email: patrickr@{sci,cs}.kun.nl *
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* WWW: http://{atlas,zeus}.cs.kun.nl:4080/homepage.html *
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------------------------------
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From: "Stephen Davies" <scldad@sdc.com.au>
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Crossposted-To: comp.os.linux.help,comp.os.linux.misc,comp.os.linux.development
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Subject: Re: Telnet & ftp freeze!
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Date: Sun, 9 Oct 94 11:42:49 PDT
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I still saw the problem at 1.1.51 (but not yet at 1.1.52) but only with
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FTPD on Linux and only when the FTP client came in via PPP (pre latest
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alpha).
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I have no trouble with Linux as a client nor with FTPD when the client
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comes in via Ethernet.
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Implication: The problem is caused by some interaction between PPP (or SLIP)
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and FTPD. (??)
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I have not had a chance to test 1.1.52 or Al's latest PPP version in this
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context.
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I will try to do that this week.
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Cheers,
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Stephen.
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>Ralph Sims (ralphs@halcyon.halcyon.com) wrote:
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>: root@jaguar.tigerden.com (System Administrator) writes:
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>
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>: >Trevor Lampre (trevor@xanax.apana.org.au) wrote:
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>
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>[stuff deleted]
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>: >for confirming what we've been seeing! I suggest we keep this thread
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>: >open and fill it with additional information until the problem gets the
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>: >attention it needs. I'm not a programmer, much less a kernel hacker, so
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>: >I can only voice frustration with the situation.
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>
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>: And what about those of us that DON'T see it? Basic setup is a
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>: dedicated PPP link on a 14.4 dialup, NET-3 stuff, ppd 2.1.2a,
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>: etc., with an InfoMagic/TransAmeritech CD-ROM combined install.
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>
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>: I move many megabytes of files around via FTP daily, and another
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>: many megs around with mosaic and lynx. Sendmail+IDA's been
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>: rock-solid.
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>
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>[stuff deleted]
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>
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>If your not seeing be thankful and provide your system configuration
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>so the experts can see whats working and whats not working
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>
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>I am NOT seeing th problem, Have a 14.4 modem using NET-3 pppd 2.2.2a with
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>slackware 1.2 , and kernel 1.1.30. I have downloaded 20 and 30 megs in a
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>single session via ftp and never had a problem. I regularly rlogin to
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>other sites, once again without problem
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>
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>
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>Colin
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>
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========================================================================
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Stephen Davies Consulting scldad@sdc.com.au
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Adelaide, South Australia. Voice: 61-8-2728863
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Computing & Network solutions. Fax : 61-8-2741015
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------------------------------
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From: "Stephen Davies" <scldad@sdc.com.au>
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Subject: terminfo vs termcap
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Date: Sun, 9 Oct 94 18:42:24 PDT
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I just spent half an hour putting together a terminfo entry only to
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discover that Linux vi ,top, elm etc all use termcap.
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I was under the impression that termcap was "old fashioned" and that
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terminfo was the way to go.
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Is the use of termcap by Linux part of it's Posix allignment or just
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a policy decision? Is there any reason why I should not compile things
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which have a terminfo option (eg emacs) with terminfo rather than termcap?
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Are there any problems with terminfo support under Linux?
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TIA.
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Stephen.
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========================================================================
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Stephen Davies Consulting scldad@sdc.com.au
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Adelaide, South Australia. Voice: 61-8-2728863
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Computing & Network solutions. Fax : 61-8-2741015
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------------------------------
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From: "Stephen Davies" <scldad@sdc.com.au>
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Subject: FTPD and dir/ls
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Date: Sun, 9 Oct 94 21:03:59 PDT
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For the past year or so I have been running a version of ftpd dated April
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11, 1993.
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Because of the problems described in the "FTP freezes" thread, I decided
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to try alternative ftpd codes. So far, I have tried the wu-ftpd and the
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ftpd in Florian La Roche's NetKit.
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Both of these exhibit the behaviour that client "dir" and "ls" commands
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_say_ that they have completed successfully, but nothing is displayed.
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The "nlist" command, however, works correctly.
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The CHANGES file in NetKit says that the code has been changed to conform
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to RFC959 and that this will cause problems for some clients. I have tried
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the Linux client and two others and all refuse to display any directory/
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file information.
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What I see in the FTP session is:
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ftp> dir
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200 PORT command successful.
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150 Opening ASCII mode data connection for /bin/ls.
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226 Transfer complete.
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ftp>
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Running a sniffer on the session confirms that this is all that is
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transferred; both for ordinary users and for root (when allowed to FTP in).
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I haven't had time to search the source code for an explanation so would
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be very grateful if someone who knows the explanation could save me the
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effort.
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TIA,
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Stephen.
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========================================================================
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Stephen Davies Consulting scldad@sdc.com.au
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Adelaide, South Australia. Voice: 61-8-2728863
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Computing & Network solutions. Fax : 61-8-2741015
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------------------------------
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From: almesber@nessie.cs.id.ethz.ch (Werner Almesberger)
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Subject: Re: LILO & BusLogic 445s
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Date: 9 Oct 1994 11:42:51 GMT
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In article <36mqad$e71@enst.enst.fr> courvill@garfield.enst.fr (Marc de Courville) writes:
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> Now install lilo on your hard disk. And before booting modify /etc/disktab
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> and enter the geometry detected by the lilo fdisk (with cyl>1024).
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You might not have made the kind of mistake outlined below, but from
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your description this isn't clear, so ...
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One word of warning here: any modifications done to /etc/lilo.conf,
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/etc/disktab, or some of the files in /boot _after_ running /sbin/lilo
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(i.e. immediately _before_ actually booting) become only effective
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after running /sbin/lilo the next time.
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So they do not affect whether or how the system boots the first time
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(and probably for a while after that), but may cause some unexpected
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effects much later, when you already thought it works.
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The simple rule is: whenever anything that affects LILO changes (and
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you want the changes to take effect), you _must_ run /sbin/lilo.
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- Werner
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--
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_________________________________________________________________________
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/ Werner Almesberger, sending this from almesber@nessie.cs.id.ethz.ch /
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/______________________..._but_now_at_home_at________almesber@di.epfl.ch_/
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------------------------------
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From: rgollent@force.stwing.upenn.edu (Roman Gollent)
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Subject: Linux on a Laptop using Bootp
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Date: 12 Oct 1994 20:22:20 GMT
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We are planning on using a Laptop with linux installed to network
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troubleshooting. The only thing is, this laptop will be used in several
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subnets, therefore, it will have to get it's ip addresses from a bootp server.
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My question is, is this possible?
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Roman
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--
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Take your dying with some seriousness, however. Laughing on the way to
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your execution is not generally understood by less advanced life forms,
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and they'll call you crazy.
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------------------------------
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** FOR YOUR REFERENCE **
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The service address, to which questions about the list itself and requests
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to be added to or deleted from it should be directed, is:
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Internet: Linux-Admin-Request@NEWS-DIGESTS.MIT.EDU
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You can send mail to the entire list (and comp.os.linux.admin) via:
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Internet: Linux-Admin@NEWS-DIGESTS.MIT.EDU
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Linux may be obtained via one of these FTP sites:
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nic.funet.fi pub/OS/Linux
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tsx-11.mit.edu pub/linux
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sunsite.unc.edu pub/Linux
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End of Linux-Admin Digest
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******************************
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