556 lines
21 KiB
Plaintext
556 lines
21 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: Fri, 14 Oct 94 03:14:17 EDT
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Subject: Linux-Admin Digest #191
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Linux-Admin Digest #191, Volume #2 Fri, 14 Oct 94 03:14:17 EDT
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Contents:
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Re: Xterminals with Linux as X server (Larry Doolittle)
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Re: Extreme delays telnetting into linux box (UALR HAM RADIO CLUB)
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Second Ethernet card not Recognized (International Tech. Assoc)
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Second Ethernet card not Recognized (International Tech. Assoc)
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Re: fsck during boot: already mounted (Uwe Bonnes)
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Re: [Q] I/O error with sendmail (Tim Bass (Network Systems Engineer))
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Messed up my root password! (Jim Frendewey)
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printcap for hplj IIp (Thomas Rose)
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Re: Mystery Chip...AMD (Marten Liebster)
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Re: XFree86-3.1 - Whoopee! (Billy the Kid)
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Re: Extreme delays telnetting into linux box (Mark 'Enry' Komarinski)
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Re: [Q] I/O error with sendmail (Tim Bass (Network Systems Engineer))
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Need Italian and Spanish Xmodmaps (Jesus Ramos)
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Re: EXT2 FS Recovery (Andrew R. Tefft)
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Re: SCSI vs IDE (Lars Knudsen)
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NFS not enabled in q2/idekern.cfg Slak 2.0.1 (Raghunath K. Rao)
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Re: /etc/utmp not writable by xterm's. Why? (Christopher Etz)
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Re: Linux NOT logging people out on hangup (Bart Kindt)
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----------------------------------------------------------------------------
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From: doolitt@recycle.cebaf.gov (Larry Doolittle)
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Subject: Re: Xterminals with Linux as X server
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Reply-To: doolittle@cebaf.gov
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Date: Thu, 13 Oct 1994 14:42:21 GMT
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Klamer Schutte (klamer@ph.tn.tudelft.nl) wrote:
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: In <1994Oct8.202354.20384@thor.xon.com> edwards@thor.xon.com (Ken Edwards) writes:
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: :Ken Edwards (edwards@thor.xon.com) wrote:
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: :: Mark A. Davis (mark@taylor.infi.net) wrote:
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: :: How many Xterminals are you looking to hook to one Linux machine?
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: High response times you get from a system is most of the time due to to paging
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: and / or swapping. Adding a faster CPU will not help you very much. Adding
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: memory will. A nice rull of thumb is to have 8 Meg of memory for every
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: X display you manage, and an additional 4 Meg for the system software (and thus
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: you need about 12Meg for a stand alone system). Users only having one xterm
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: reading news will use less; power users will use more.
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: This 8 Meg is the amount of menory which is swapped in at a certain moment.
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: A window manager typically is used often, and stays swapped in. So running
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: this on a xterminal rather then on the host is a good way to save available RAM.
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: Besides that, it is one of the X client programs you have to wait for when
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: it should be paged in. Thaat is the major advantage of running it local -
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: switching to another window does not cost the time to swap in the
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: window manager anymore (but still perhaps the time to swap in another client!)
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: (PS The above is based upon experiences with Sun Sparc 1 en 2 -- but will be
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: similar for Linux boxes.)
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Hmm. Does Sun's OS do a good job of sharing libraries and executables?
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Linux should need only one copy of libc, libX11, LibXaw, libXt, xterm,
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fvwm, etc in memory at once. All each successive user needs is the
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local data space. I suspect 8M + 4M/user is a better estimate for
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Linux, although I haven't tried it. I am about to go from 8M to 16M,
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and that should take me from 0 users to 2 users - sounds about right :-).
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- Larry Doolittle doolittle@cebaf.gov
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------------------------------
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From: ham@ualr.edu (UALR HAM RADIO CLUB)
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Subject: Re: Extreme delays telnetting into linux box
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Date: 12 Oct 94 15:24:36 CST
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In article <9410110253.AA09075@GRAPHICS.CS.NYU.EDU>, barkerc@GRAPHICS.CS.NYU.EDU (Chris Barker) writes:
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> Subject: Extreme delays on ethernet login
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> After swithching to Yggdrasil Fall 94 Kernel 1.1.47 I have experienced extreme
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> delays when telnetting into my box from my PC over ethernet. Upto a minute of
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> delay before I see the issue.net message and a login prompt. This did not occur
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> using the 1.1.0 kernel. It also takes a long time to ping the box, although
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> pinging my PC from the linux box is ok and telnetting out over my slip is fine.
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> I am using gated 3.5 alpha, but this was happening even running routed. Every
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> thing is fine once I get in, but it is so slooooow to login! Any ideas?
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I have been having the same problem with 1.0, 1.0.9, and 1.1.8 slackware
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kernels from sunsite. I am using NCSA Telnet on the dos side.
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>
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------------------------------
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From: ita@crl.com (International Tech. Assoc)
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Subject: Second Ethernet card not Recognized
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Date: 13 Oct 1994 13:42:44 -0700
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[ Article crossposted from comp.os.linux.help ]
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[ Author was Kevin B. Murphy ]
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[ Posted on 10 Oct 1994 19:16:38 -0400 ]
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Could someone tell me how to get linux to recognize a second ethernet card?
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There is several eth? device files in /dev and someone told me that Space.c
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had something to do with it. Thanks.
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------------------------------
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From: ita@crl.com (International Tech. Assoc)
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Subject: Second Ethernet card not Recognized
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Date: 13 Oct 1994 13:42:55 -0700
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[ Article crossposted from comp.os.linux.help ]
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[ Author was International Tech. Assoc ]
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[ Posted on 12 Oct 1994 20:50:30 -0700 ]
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I have the same problem :) I already have a very well connection to the
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internet on my eth0 device. I want to install a second ethernet card and
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route my Novell Netware through the Linux box. I don't know why Linux
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does not recognize my second card.
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Thanks
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------------------------------
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From: bon@lte.e-technik.uni-erlangen.de (Uwe Bonnes)
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Subject: Re: fsck during boot: already mounted
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Date: Wed, 12 Oct 1994 20:30:21 GMT
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Harvey J. Stein (hjstein@sunset.huji.ac.il) wrote:
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> In article <376j1e$6ga@geraldo.cc.utexas.edu>
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> slc@PROBLEM_WITH_INEWS_DOMAIN_FILE (Scott L. Crutchfield) writes:
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> I am running Yggdrasil P&P (summer 1994). It used to check the
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> filesystems every once in a while when during startup, even if they
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> were clean ("maximal mount-count reached"). Now it always complains
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> that the partitions are already mounted and it's aborting the checks.
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> I always shut down with "halt". I don't think I did anything to
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> /etc/rc or /etc/rc.local, but it's been a while so I can't be sure.
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> If you recompiled the kernel, you need to run rdev to modify the boot
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> image so that it mounts the root read-only.
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You can you /etc/lilo.conf instead. E.g:
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# LILO configuration file
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# generated by 'liloconfig'
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#
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# Start LILO global section
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boot = /dev/sda7
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#compact # faster, but won't work on all systems.
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# delay = 5
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vga = -2
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ramdisk = 0 # paranoia setting
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# End LILO global section
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# Linux bootable partition config begins
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image = /vmlinuz
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root = /dev/sda7
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label = linux
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read-only
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^^^^^^^^^
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--
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Uwe Bonnes bon@lte.e-technik.uni-erlangen.de
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------------------------------
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From: bass@cais2.cais.com (Tim Bass (Network Systems Engineer))
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Subject: Re: [Q] I/O error with sendmail
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Date: 13 Oct 1994 21:27:46 GMT
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Just got back from a briefing all day and yesterday. I'll
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upload the mail.c binary tonight.
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Hope thats okay.
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------------------------------
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From: jimf@myhost.subdomain.domain (Jim Frendewey)
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Subject: Messed up my root password!
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Date: 10 Oct 1994 18:15:56 GMT
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I changed my root password, being security conscious, but apparently changed it
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to something I can't repeat. I have tried all the combinations of what I
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thought I used but to no avail.
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The way I have tried to get out of this mess is by bring up my system in
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single user mode, which works, and then changing the password. The problem is
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the system indicates that it has mounted my files as rw but everything behaves
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as if has been mounted read-only. If I cat mtab it shows (rw). I am new to
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Unix and especially to 'Unix administration'. Any help would be greatly
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appreciated.
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------------------------------
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From: tom@vulcan.owl.de (Thomas Rose)
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Subject: printcap for hplj IIp
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Date: Tue, 11 Oct 1994 20:06:27 GMT
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Hi !
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Can somebody send me a printcap for a hp laserjet IIp with 1,5 MB Memory ?
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Tom
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--
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=====
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Thomas Rose Jakbo-Kneip-Strasse 92 40595 Duesseldorf Germany
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Telefon: +49 5251 370231 | +49 211 707484
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E-Mail : tom@vulcan.owl.de
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------------------------------
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From: mmarten@panix.com (Marten Liebster)
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Crossposted-To: comp.sys.ibm.pc.hardware.systems,comp.os.linux.misc
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Subject: Re: Mystery Chip...AMD
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Date: 13 Oct 1994 11:28:45 -0400
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Brad Matthew Garcia (garcia@ece.cmu.edu) wrote:
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: In article <37hgfh$71n@venera.isi.edu>,
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: daniel@isi.edu (Daniel Zappala) writes:
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: |>
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: |> In article <37h24oINN15j@life.ai.mit.edu>,
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: |> jolt@gnu.ai.mit.edu (John Palaima) writes:
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: |> >
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: |> > Hah. Apparently you didn't hear that the Am486 DX/2 66 could be safely
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: |>
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: |> But a DX2-80 can't be just a relabeled, overclocked DX2-66.
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: |> It's bus speed has to be 40 Mhz.
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: |>
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: |> Daniel
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: I think that you are confused, Dan, between a relabled 66 MHz *system* and
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: a relabled 66 MHz *cpu*. They simply put the 66 MHz chip on a 40 MHz
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: motherboard (which is also accomplished by changing the speed of the
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: motherboard) and... TADA! - a 486DX2-80!
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: --
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But a poster earlier mentioned that he just bought an AMD 486dx/2 80 CHIP.
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I would have to agree with Daniel, that the chip would internally running at
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80 Mhz and externally at 40 Mhz. This chip would be perfect for my MB - running
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at 40 Mhz with a TI 486DLC-40 chip on it.
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So when is AMD comming out with a 486dx4-120? :-)
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Marten
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--
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========================================
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Marten M. Liebster Please no flames for spelling,
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mmarten@panix.com I already know I can't spell!!
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------------------------------
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From: petersen@teleport.com (Billy the Kid)
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Subject: Re: XFree86-3.1 - Whoopee!
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Date: 13 Oct 1994 14:35:36 -0700
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XFree86-3.1 is neet alright, but is anyone having problems with the
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WD90C33 part of the SVGA server? When I start a new application with
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color buttons, xpaint for example, parts of the buttons leave residue on
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the screen. The "residue" "sticks" to the glass, so no matter which part
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of the virtual desktop I am on, it is still there. The effect is
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cumulative and won't go away. Is there a root window refresh? or maybe a
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function to redraw the whole screen?
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Thanks,
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Davin Petersen
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petersd@seq.oit.osshe.edu
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--
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petersen@teleport.COM Public Access User --- Not affiliated with TECHbooks
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Public Access UNIX and Internet at (503) 220-1016 (2400-14400, N81)
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------------------------------
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From: komarimf@craft.camp.clarkson.edu (Mark 'Enry' Komarinski)
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Subject: Re: Extreme delays telnetting into linux box
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Date: 13 Oct 1994 15:22:33 GMT
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Klaus Lichtenwalder (klaus@gaston.m.isar.de) wrote:
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: barkerc@GRAPHICS.CS.NYU.EDU (Chris Barker) writes:
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: >[...]
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: >delays when telnetting into my box from my PC over ethernet. Upto a minute of
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: >delay before I see the issue.net message and a login prompt. This did not occur
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: >using the 1.1.0 kernel. It also takes a long time to ping the box, although
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: >pinging my PC from the linux box is ok and telnetting out over my slip is fine.
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: >I am using gated 3.5 alpha, but this was happening even running routed. Every
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: >thing is fine once I get in, but it is so slooooow to login! Any ideas?
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: Yeah, have a look at /etc/resolv.conf. There might be a reference to an
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: unknown name server. Looking up this name server gives a timeout, that's
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: (perhaps) your delay. Also have a look at /etc/host.conf whether bind
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: or nis is referenced. If there's no name server (and no nis for that
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: matter) you might as well delete these key words, leaving only hosts
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: (for looking in /etc/hosts).
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We have a similar login problem, especially when connecting to a MUSH
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port. The connection from a remote host can (sometimes) sit there forever.
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If, however, from the machine I connect to that port (telnet localhost 7567)
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the connection from remote becomes instantly connected. We were at first
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thinking this is a problem with our code, as regular telnet appears to
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work okay(who knows where that lag comes from? :). But these
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problems may be related. Running 1.1.49 on a Slackware setup.
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--
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- Mark Komarinski - komarimf@craft.camp.clarkson.edu
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Linux: Commercial software gone horribly wrong.
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------------------------------
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From: bass@cais2.cais.com (Tim Bass (Network Systems Engineer))
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Subject: Re: [Q] I/O error with sendmail
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Date: 13 Oct 1994 21:47:15 GMT
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Done.
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ftp://sunsite.unc.edu/uploads/lmail.Z
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Binary only... let me know if you need the src.
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Tim Bass (Network Systems Engineer) (bass@cais2.cais.com) wrote:
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: Just got back from a briefing all day and yesterday. I'll
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: upload the mail.c binary tonight.
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: Hope thats okay.
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------------------------------
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From: ramos@brixton (Jesus Ramos)
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Subject: Need Italian and Spanish Xmodmaps
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Date: 13 Oct 1994 15:26:53 GMT
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If have any of these, or you know where I can find one, please le me know.
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I went to sunsite, bit they don't have either.
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Thanks in advance
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Jesus Ramos
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ramos@cibadiag.com
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chachi@acs.bu.edu
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------------------------------
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From: teffta@erie.ge.com (Andrew R. Tefft)
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Subject: Re: EXT2 FS Recovery
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Reply-To: teffta@erie.ge.com
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Date: Mon, 10 Oct 1994 15:57:39 GMT
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In article <1994Oct7.194345.6521@dithots.org>, gwp@dithots.org (George W. Pogue) writes:
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>
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>I was moving a 200M drive over to a 1Gig drive and blasted the darn thing
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>with a mkswap instead of a mke2fs (fumble brain). Nonetheless, the
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>partition is still there, I've not done anything to it.
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If you typed 'mkswap' instead of 'mke2fs' then you haven't lost anything
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that mke2fs would not have destroyed anyway. So just go ahead and do the
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mke2fs again.
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Now, if you did mkswap on the wrong partition or something, then you
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would be in trouble, but no more trouble than if you had done mke2fs
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on the wrong partition.
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--
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Andy Tefft - new, expanded .sig - teffta@erie.ge.com
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------------------------------
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From: gandalf@vision.auc.dk (Lars Knudsen)
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Subject: Re: SCSI vs IDE
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Date: 13 Oct 1994 10:05:02 GMT
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In article <37h4a8$b3p@bmerhc5e.bnr.ca> mlord@bnr.ca (Mark Lord) writes:
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In article <DMW.94Oct12084235@prism1.prism1.com> dmw@prism1.prism1.com writes:
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<
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< No, even on systems with one drive SCSI is a better choice than IDE
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<unless you are running a single-tasking OS like DOS. It is definately
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<possible to get transfer speeds out of IDE that are close to SCSI (but not
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<Fast & Wide SCSI). But you are paying for the speed with CPU busy waiting.
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Nope. Just plain false. No measurable "busy waiting" is used for IDE drives
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under linux. Read/Write operations are interrupt driven, not polled.
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Note that the effect of this is unnoticeable under most single-user situations,
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since writes are deferred by the buffer-cache, and reads usually imply that
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the user is sitting there waiting for the data anyhow. With lots of processes
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running and performing I/O, the general (unproven) opinion is that SCSI really
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ought to perform better. I agree.
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--
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mlord@bnr.ca Mark Lord BNR Ottawa,Canada 613-763-7482
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Results on my system 486dx2-66 with SIDE enhanced IDE VL-bus
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controller and Buslogic 445s SCSI-2 result in similar transfer speeds
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for the two (within 20%) but in the case of IDE the CPU is more than
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95% busy and with SCSI it is less than 50%.
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I don't know what the CPU is doing and I don't think it really
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matters, whether its waiting, busy making commands to the disk or
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transfering data - the net result is that the use of SCSI leaves much
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more resources for other processes.
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Cheers,
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Gandalf
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--
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+--------------------------------+---------------------------------+
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| Lars F. Knudsen, M.Sc. E.E. | E-mail: gandalf@vision.auc.dk |
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| Laboratory of Image Analysis | Phone +45 98 15 85 22, ext 4967 |
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| Aalborg University, | Home: +45 98 16 94 74 |
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| Fr.Bajers Vej 7 | Telefax: +45 98 15 40 08 |
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| DK-9220 Aalborg East, Denmark. | |
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+--------------------------------+---------------------------------+
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------------------------------
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From: thssrkr@iitmax.iit.edu (Raghunath K. Rao)
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Subject: NFS not enabled in q2/idekern.cfg Slak 2.0.1
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Date: Mon, 10 Oct 94 18:55:39 GMT
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Hi,
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Dont know if anyone already noticed this. Ignore if so.
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I was trying to install the 1.1.18 kernel from the q1/idekern.tgz
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on Slackware 2.0.1 and found that NFS mounting was not possible.
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Turns out that the idekern.cfg shows that the kernel was compiled
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with NSF disabled! Here's the extract:
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if [ "$CONFIG_INET" = "y" ]; then
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bool 'NFS filesystem support' CONFIG_NFS_FS n
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^^^^^^^^^^^^^^^^
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So I had to install scsikern.tgz instead which works fine, though
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hogs a little more space. However, on one machine (Compaq 386/20),
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the scsikern creates some funny errors, so I had to stick to the
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standarad 1.0.9 issued.
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Could the person who maintains the distribution please fix this?
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Thanks
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Raghu
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========================================================================
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_____ ___ _______
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K. RAGHUNATH RAO /____/ \ /__/\ /______/\
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email : rrao@chitra.iit.edu | __ \ /| / _ \ \ / ___ \ |
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sleepy (res) : (312)791-9428 | |__) |/ / /_\ \ \ | / | \ | |
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sleepier (off) : (312)567-8815 | __ /\ | ___ | | | | | | | |
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| | \ \ \ | / | \ | | | | |_| | |
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It is the intonation and not | | |\ \ \ | | | | | | | \/__/ |/
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the intention that matters!! |_|/ \_\/ |_|/ |_|/ \______/
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========================================================================
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------------------------------
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From: cetz@cetz.rhein-main.de (Christopher Etz)
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Subject: Re: /etc/utmp not writable by xterm's. Why?
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Date: Thu, 13 Oct 1994 20:53:00 GMT
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Harald Milz (hm@ix.de) wrote:
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: In comp.os.linux.admin, Lars Hofhansl (lars@hboix1.enet.dec.com) wrote:
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: > I noticed this behavior too, and I wondered how the good old
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: > xterm managed writing to utmp. It's quite simple: xterm is setuid root.
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: > So I set rxvt uid root, and it works.
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: > So far I could not see any security holes... Is that true?!
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: There is -- if your xterm allows for logging. See your respective menu
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: (Control - right button). I saw different xterm versions for XFree86
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: (I _really_ wonder why): one which doesn't do logging, and one which does.
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Mine does allow logging, and it is setuid root. But -- stupid as I am --
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I don't see the security hole. Turning on logging, writes to a file
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called `XtermLog.XXXXX' (the 5 X's are really literally) in my home
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directory. And if I make `XtermLog.XXXXX' a symbolic link to a file
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owned by root (/etc/motd for example ;-)), it doesn't write at all.
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So what?
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Christopher
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--
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____________________________________________________________________________
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Christopher Etz Kopernikusstr. 28 D-65929 Frankfurt/Main
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cetz@cetz.rhein-main.de Tel.: +49 69 318091 Telefax: +49 69 318091
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------------------------------
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Crossposted-To: comp.os.linux.development
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From: bart@dunedin.es.co.nz (Bart Kindt)
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Subject: Re: Linux NOT logging people out on hangup
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Date: Fri, 14 Oct 1994 06:02:31 GMT
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In article <37enbg$m7a@pdq.coe.montana.edu> osyjm@cs.montana.edu (Jaye Mathisen) writes:
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>In article <36qh56$85t@leary.cosmic.com>,
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>Joe Beiter <swrek@leary.cosmic.com> wrote:
|
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>>
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>>We have a network of 5 linux systems running .47 and .50 with three
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|
>>being used as dialup systems (with digiboards).
|
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>>
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>>Since each has 8 modems on them we are finding this problem to be both
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>>valid and *very* annoying. Our latest suspect is bash but we're pretty
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>>baffled.
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>I'm having the same problem with bash processes (and lynx) on a BSDI/386
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>box as well. I haven't a clue as to why they're not getting killed.
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I am running a multi-line SLIP dialin server. For months we have had problems
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|
that sometimes the "sliplogin" program was not getting killed. We finally
|
|
found that the problem is in the Kernel " close() " function; this function
|
|
does sometimes *not return*. We have fixed the problem with a patch that
|
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re-kills the program after a 15 second timeout, when it is still 'alive'. The
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problem is definately in the kernel, but we have never found anybody who could
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do something about it. Our dirty patch keeps our system online, but does not
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fix the root of the problem. You problem could very well be the same.
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====================================================================================
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Bart Kindt (ZL4FOX) System Operator, Efficient Software NZ LTD, Dunedin, New Zealand
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====================================================================================
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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
|
|
to be added to or deleted from it should be directed, is:
|
|
|
|
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:
|
|
|
|
Internet: Linux-Admin@NEWS-DIGESTS.MIT.EDU
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|
|
|
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
|
|
******************************
|