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