From: Digestifier To: Linux-Admin@senator-bedfellow.mit.edu Reply-To: Linux-Admin@senator-bedfellow.mit.edu Date: Tue, 31 Aug 93 12:41:25 EDT Subject: Linux-Admin Digest #27 Linux-Admin Digest #27, Volume #1 Tue, 31 Aug 93 12:41:25 EDT Contents: Re: Getty Spasms (Jawaid Bazyar) Re: "lpd" won't run (Brian McCauley) TIP: making a bootable root floppy (Brian McCauley) Re: Linux bbs software? (Andreas Fatum) Need rgb color-database compiler (Dirk Grebe) Mounting Dos... (James E Jurach Jr) Net-Admin-Guide CAUTION! (Rick Miller) Re: big UUCP spool files (Olaf Titz) Re: restricting newsgroups (Olaf Titz) ---------------------------------------------------------------------------- From: bazyar@mrcnext.cso.uiuc.edu (Jawaid Bazyar) Subject: Re: Getty Spasms Date: 31 Aug 1993 08:46:16 GMT s936079@minyos.xx.rmit.OZ.AU (Greg Patten) writes: >bazyar@mrcnext.cso.uiuc.edu (Jawaid Bazyar) writes: >>I recently recompiled getty and installed it in /etc.. at that point, >>getty would no longer run.. it would fail (with a note like the following >>in getty.log: >>Getty: (9600) Cannot open connect line > ^^^^^^- It's trying to open a line called 9600 which it cannot > find. In the man it clearly states that getty_ps wants > (in your inittab or whatever you use) > getty tty* [line_speed] [terminal_type] Okay, took care of that, but the main problem still exists. >>I started having this problem after upgrading to the new kernel, pl12. >>One of my terminals, when firing up getty, will "spaz" getty via init >>with this error. Occasionally, it will work, but most of the time >Mail me if it still doesn't work as I'd be interested to know what it is. I'm beginning to suspect my cable. It's plugged into a 25-pin serial port, runs through a HW Flowcontrol null modem, and into a Macintosh (Macs make great terminals). Anyway, very often I'll get a few (one, or two) characters before getty dies. /etc/issue is set for "Sequential Systems BBS" and I get "Se", "Seq". Very rarely getty will survive and I can log in. I didn't have this problem with the pl9 kernel; this is new with pl12. Should I still be using ttyS*, or are there other devices to use with the new kernel? The permissions aren't set right on cua1 for this, and cua1 is for dialout anyway, right? This thing is too much like Unix :-) perhaps plan9 will be more of what I'm after. I'm still sticking with Linux because after all, there's nothing better. -- Jawaid Bazyar | Like UNIX? Like your Apple IIGS? Then ask Procyon, Inc. | me about GNO/ME for the Apple IIgs! bazyar@cs.uiuc.edu | P.O Box 620334 --Apple II Forever!-- | Littleton, CO 80162-0334 (303) 781-3273 ------------------------------ From: bam@wcl-l.bham.ac.uk (Brian McCauley) Subject: Re: "lpd" won't run Date: 31 Aug 1993 09:20:17 GMT Reply-To: B.A.McCauley@bham.ac.uk In article <746736010snz@chrism.demon.co.uk> chris@chrism.demon.co.uk (Chris Marriott) writes: Forgive me if you've already seen this post in "comp.os.linux", but I've just discovered that this new hierarchy exists, and this is the place where the question should have gone originally. Forgive me too - I still read c.o.l fisrst and I followed up there too sorry all. My problem is that the printer daemon "lpd" refuses to run. [...] I've create the directory "/usr/spool/lp1". Yes but does /var/spool/lpd exist? I think I'm going to have to *SHOUT* this in the printing-HOWTO (formerly lpd-FAQ) nobody seems to notice it. -- \\ ( ) No Bullshit! | Email: B.A.McCauley@bham.ac.uk . _\\__[oo from | Voice: +44 21 471 3789 (home) .__/ \\ /\@ /~) /~[ /\/[ | +44 21 627 2171 (work) . l___\\ /~~) /~~[ / [ | Fax: +44 21 627 2175 (work) # ll l\\ ~~~~ ~ ~ ~ ~ | Snail: 197 Harborne Lane, B29 6SS, UK ###LL LL\\ (Brian McCauley) | ICBM: 52.5N 1.9W ------------------------------ From: bam@wcl-l.bham.ac.uk (Brian McCauley) Subject: TIP: making a bootable root floppy Date: 31 Aug 1993 11:27:06 GMT Reply-To: B.A.McCauley@bham.ac.uk Everyone should have a bootable root floppy for emergency repairs. You can get these ready made but it's quite easy to make your own. For example here's the script I use to make mine. It only supports single use mode because that's what I want. Note I don't use a ramdisk which means I can't take the floppy out of /dev/fd0 but I don't usually find this a problem. If someone would like to post a ramdisk equivalent I'd be interested. =================snip=snip================== #!/bin/sh -v # A simple bash script to make a LILO boot floppy # The floppy will work in its own right but mounts the HD DEVICE=/dev/fd0 IMAGE=/vmlinuz TYPE=ext2 TMP=/tmp/${0##*/}.$$ FLOPPY=/tmp/${0##*/}.mount.$$ mkdir $TMP $FLOPPY mkfs.$TYPE $DEVICE if ! mount -t $TYPE $DEVICE $FLOPPY; then exit fi; mkdir -p $FLOPPY/etc/lilo cd $FLOPPY # boot stuff cp $IMAGE . cp /etc/lilo/boot.b etc/lilo/ mkdir mnt dev tmp lib ln -s mnt/usr usr ln -s mnt/var var # a few useful binaries from wherever cd $TMP cp -v /{{usr/,}bin,etc}/{rdev,chmod,chown,tar,bash,gzip,\ mkdir,rm,sync,mount,ln,ls,cp,su} . 2>/dev/null strip * ln bash sh ln gzip uncompress ln gzip zcat ln mount umount cp -av $TMP $FLOPPY/bin # it ought to be possibe to analyse the binaries cd $FLOPPY/lib cp /lib/libc.so.4 . for i in /lib/lib*.so.?; do ln -s ../mnt$i . ; done # Copy everytning in /dev that isn't a file or directory cd $FLOPPY/dev cp -av `find /dev -mindepth 1 -maxdepth 1 ! -type f ! -type d` . cd $FLOPPY/etc # these are the only essential executables in /etc cp -v /etc/{init,update} . cat >rc.single <<[END] /bin/rm -f /etc/mtab* /etc/nologin /etc/utmp touch /etc/utmp /bin/mount -av [END] chmod +x rc.single cat >inittab <<[END] id:S:initdefault: si::sysinit:/etc/update & rc:S:wait:/etc/rc.single [END] cat >login.defs <<[END] # Three items must be defined: MAIL_DIR, ENV_SUPATH, and ENV_PATH. MAIL_DIR /usr/spool/mail ENV_SUPATH PATH=/bin:/etc:/mnt/bin:/mnt/etc:/usr/bin ENV_PATH PATH=/local/bin:/usr/bin:/bin ERASECHAR 127 KILLCHAR 025 UMASK 022 ULIMIT 2097152 [END] cat >passwd <<[END] root::0:0:Single user,,,:/:/bin/bash daemon:x:1:1::/etc: bin:x:2:2::/bin: uucp::5:5::/usr/uucp: sync::255:0:::/bin/sync [END] # Assume /dev/fd0 is my root cat >fstab <<[END] /dev/fd0 / /proc /proc proc [END] # add my drive setup perl >fstab -ne \ 'if (/^\/dev/&& ! /^\/dev\/fd0/)'\ '{split;$_[1]="/mnt".$_[1];print join(" ",@_),"\n";}' ( echo install = $FLOPPY/etc/lilo/boot.b echo prompt echo compact echo map=$FLOPPY/etc/lilo/map echo boot=$DEVICE # Assume that even if this floppy is being made in /dev/fd1 it will be # booted in /dev/fd0 more often than not. echo image= $FLOPPY/${IMAGE##*/} echo label=floppy echo vga=ask echo root=/dev/fd0 echo image= $FLOPPY/${IMAGE##*/} echo label=fd1 echo vga=ask echo root=/dev/fd1 ) | /etc/lilo/lilo -C /proc/self/fd/0 cd umount $DEVICE rm -rf $TMP rm -rf $FLOPPY =================snip=snip================== -- \\ ( ) No Bullshit! | Email: B.A.McCauley@bham.ac.uk . _\\__[oo from | Voice: +44 21 471 3789 (home) .__/ \\ /\@ /~) /~[ /\/[ | +44 21 627 2171 (work) . l___\\ /~~) /~~[ / [ | Fax: +44 21 627 2175 (work) # ll l\\ ~~~~ ~ ~ ~ ~ | Snail: 197 Harborne Lane, B29 6SS, UK ###LL LL\\ (Brian McCauley) | ICBM: 52.5N 1.9W ------------------------------ From: ace@acelab.ruhr.de (Andreas Fatum) Subject: Re: Linux bbs software? Date: Tue, 31 Aug 93 14:14:43 +0200 ritz@ritz.mordor.com (Christopher Mauritz) writes: > Perhaps, what the linux world needs then is a clever, bi-lingual > and extremely kind person to translate the docs? You probably have an older version of mbox. Get mbox10 which is "the first international release of ix/MBox" (excerpt from the README-file). Low-level error-messages and comments are still in german, anyway the users should never see them ;-) (The README contains a translation, though) I got mbox10 either from sunsite or from tsx-11 (/pub/Linux/bbs) Andreas --- Andreas Fatum InterNet : ace@acelab.ruhr.de (Internet BBS) postmaster@re.open.de (City-Router) SubNet : ace@acelab.ruhr.sub.org UUCP/Bang!: ..!uunet!germany.eu.net!acelab!ace ------------------------------ From: gravy@moebius.physik.TU-Berlin.DE (Dirk Grebe) Subject: Need rgb color-database compiler Date: 31 Aug 1993 14:45:08 GMT I want to use a non-standard colortable and so I need the rgb compiler or the source of it to build it. Where can I get it???? Thank you ciao Dirk ------------------------------ From: muaddib@ccwf.cc.utexas.edu (James E Jurach Jr ) Subject: Mounting Dos... Date: 31 Aug 1993 09:42:45 -0500 Hello. I'm not sure if this is the appropriate place to post, but here is my problem. I have set up a number of Linux boxes in my lab, but some people still program on the MSDOG side and require access to my code and some executables... It would be preferable to me to have full access to the binaries, and to worry about the ^M problem on a file to file basis, yet... I do not know what options to set in my fstab. All the options i have tried have failed. What options would I set in my /etc/fstab to be able to copy binaries from my MushDOS partitions to the PC-NFS mounted partitions? Thanks a million, James ------------------------------ From: rick@ee.uwm.edu (Rick Miller) Subject: Net-Admin-Guide CAUTION! Date: 31 Aug 1993 15:05:11 GMT Don't waste a ton of paper printing the Net Admin Guide, until you've inserted the proper scaling commands into the PostScript to make it FIT on LETTER-sized paper (or print it on LEGAL-size). I don't have a LEGAL-sized tray, so I insterted the line: 1.0 0.9 scale immediately after each and every one of the 240-odd "%%Page ### ###" lines. That scales it down to LETTER size. You'll hardly notice the distortion. What a pain, eh? RICK MILLER Voice: +1 414 221-3403 P.O. BOX 1759 FAX: +1 414 221-4744 MILWAUKEE, WI Send a postcard and I'll send one back. 53150-1759 USA Sendu bildkarton kaj mi retrosendos unu. ------------------------------ From: s_titz@ira.uka.de (Olaf Titz) Subject: Re: big UUCP spool files Date: 31 Aug 1993 15:21:28 GMT In article <1993Aug26.133608.16902@ennews.eas.asu.edu> gomez@enuxsa.eas.asu.edu (JL Gomez) writes: > Is there anything I can do short of adding cron entries to reduce > the size of those UUCP spool files in .Log, .Admin, etc? I have a crontab entry that cuts off all log files once a day, something like FILES="/usr/spool/smail/log /usr/spool/uucp/Debug /usr/log/*" # all growing log files on my system... OLD="/tmp/old.$$" for i in $FILES; do mv -f $i $OLD tail +50k $OLD > $i rm $OLD done (quoted from memory, forgot the correct tail syntax) Olaf -- olaf titz o olaf@bigred.ka.sub.org praetorius@irc comp.sc.student _>\ _ s_titz@ira.uka.de LINUX - the choice karlsruhe germany (_)<(_) uknf@dkauni2.bitnet of a GNU generation what good is a photograph of you? everytime i look at it it makes me feel blue ------------------------------ From: s_titz@ira.uka.de (Olaf Titz) Subject: Re: restricting newsgroups Date: 31 Aug 1993 15:35:32 GMT In article <25rr58$ed0@news.bu.edu> heiser@bumetb.bu.edu (Bill Heiser) writes: > In article sperry@well.sf.ca.us (Michael P. Sperry) writes: > >Does anyone know a method whereby I could prevent children from receving these > >newsgroups (besides not letting them on my system)? I was trying to work Depending on your definition of 'prevent'... (complete prevention can usually not be done, and whether such action makes sense is a completely different case, but...) You could maintain two active files with different access permissions and two different newsreaders, respectively (difficult); or set the permissions of the spool area accordingly (i.e. world-readable vs group-readable, and give the adults a setgid newsreader and the non-adults [!=children, but that's still a different question] a non-setgid-one) > You could try changing the directory "group ownerships" of the spool > directories you want to restrict. Then put your users in appropriate > groups and set the read permissions of those spool directories This will fail because newsreader programs are often setuid or setgid to 'news'. A different approach would be to maintain two different versions of them, or two different front-ends which are setuid, check the effective uid and ecxecute the real newsreader in setuid mode or not, accordingly. Olaf -- olaf titz o olaf@bigred.ka.sub.org praetorius@irc comp.sc.student _>\ _ s_titz@ira.uka.de LINUX - the choice karlsruhe germany (_)<(_) uknf@dkauni2.bitnet of a GNU generation what good is a photograph of you? everytime i look at it it makes me feel blue ------------------------------ ** 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 ******************************