From: Digestifier To: Linux-Admin@senator-bedfellow.mit.edu Reply-To: Linux-Admin@senator-bedfellow.mit.edu Date: Thu, 19 Aug 93 11:13:29 EDT Subject: Linux-Admin Digest #8 Linux-Admin Digest #8, Volume #1 Thu, 19 Aug 93 11:13:29 EDT Contents: Re: tar & mt (Paul van Spronsen) Re: Why use shadow? (Keith Rohrer) Syslog entries from remote hosts working? (Steve Steinberg) Re: tar & mt (Brandon S. Allbery) Writing News -> dead.article (Roland Rosenfeld) Re: sending ^H from backspace (Martin-D. Lacasse) Updating to pl12 (from pl8) broke all my net stuff. Help. (Joel M. Hoffman) Getting X working... (Jay Freeman) 2.88 Mb FD support? (Zippy) SLS v1.03 and bootmanager? (PERUCCI, PHILIP A.) Re: Optimizing X... (Markfried Fellensiek) Re: Getting X working... (BARRY TITMARSH) Re: cron listed as /USR/BIN/CRON ??? (Rene COUGNENC) Re: Why use shadow? (Mike Horwath) Linux trusted by SPARC (C Wayne Huling) Passwd file (C Wayne Huling) Re: Passwd file (Mark Evans) ---------------------------------------------------------------------------- From: vspr@teppic.sun.ac.za (Paul van Spronsen) Subject: Re: tar & mt Date: 18 Aug 93 15:31:13 GMT Brian E. Gallew (geek+@CMU.EDU) wrote: : dclemmer%anl433.uucp@Germany.EU.net (David Clemmer) writes: : > ok... how would you specify which you wanted when restoring from that tape? : > i mean, you can't exactly say 'tar xvf /dev/rmt0/file1' or something equally : > silly... : Actually, RTFM will show : tar xvf /dev/rmt0 path1 path2 path3 : where pathX is the full pathname of the file of interest. Well actually, there's a difference between extracting a specific file from a tar archive and extracting a specific tar archive from a tape. What you describe above will extract path[1-3] from the next archive on the tape, but what I think was intended by the previous poster (David?) was that you may want to extract the next tar archive from the tape. You would do this by executing a 'mt -f /dev/nrmt0 fsf 1' or similar syntax for 'fast-forward file'. This is the HP syntax BTW - I'm not sure of the exact syntax under linux. -- Paul van Spronsen ===================================================================== Department of Computer Science Internet: vspr@cs.sun.ac.za University of Stellenbosch vspr@teppic.sun.ac.za South Africa Voice : +27 2231 774393 Fax : +27 2231 774416 ------------------------------ From: rohrer@fncrd7.fnal.gov (Keith Rohrer) Subject: Re: Why use shadow? Date: 18 Aug 1993 20:35:57 GMT In article muts@compi.hobby.nl (Peter Mutsaers) writes: >>> On 14 Aug 93 23:39:18 EDT, eekim@husc11.harvard.edu (Eugene Kim) >>> said: > > EK> Using shadow also prevents me from just editing the passwd file > EK> to add new users. Does anyone know why shadow is better than > EK> passwd? >Because someone with lots of CPU time on a CRAY can read the encrypted Not so. I took my 386-40, pulled down an 800-or-so student passwd file, and overnight it found about 50 passwords. Kinda disgusting. You might, however, do better with a passwd program that requires decent passwords... >passwords and do a brute force guessing of passwords through this. If Stupid passwords are far easier to check for than random passwords. If you just fake tftp or something to get /etc/passwd, having a j random luser account is a step up. >you are not too afraid for this rare case, indeed it is simpler to use It's not so rare any more. Keith -- Disclaimer: None of Grinnell College, URA, Fermilab, and any other affiliated persons or orginizations have licensed my ideas or opinions, and thus are not entitled to any which may appear above. GCS d* -p+ c+++ l++ m* s/* g+ w++ t++ r++ x/-- ------------------------------ Crossposted-To: comp.os.linux,comp.os.linux.help From: ss@JH.Org (Steve Steinberg) Subject: Syslog entries from remote hosts working? Date: Wed, 18 Aug 1993 20:44:13 GMT My syslogd is working fine for messages from the local linux host, but I would like to log entries from some other hosts on my net. I am experimenting with a telebit netblazer which will log to my DEC box with no trouble, but when I direct the output to the linux box I get nothing! Syslog -d reports nothing coming from the netblazer as well. Is anyone else useing syslogd to log from other hosts? The Particulars: Linux 0.99pl10 Net-2 Thanks for your help, Steve -- ===================================================================== = Steve Steinberg = ss@JH.Org -or- ss@panix.com = (718) 262-6996 = = Sure, come on down, but we're in Jamaica, NY, not the Carribean! = ===== THE SPACE BELOW LEFT INTENTIONALLY BLANK ===== ------------------------------ Crossposted-To: comp.os.linux From: bsa@kf8nh.wariat.org (Brandon S. Allbery) Subject: Re: tar & mt Date: Wed, 18 Aug 1993 21:17:21 GMT >In article <1993Aug17.232818.18231@kf8nh.wariat.org> bsa@kf8nh.wariat.org (Brandon S. Allbery) writes: >> mt -f /dev/rmt0 fsf The Automatic Typo Generator at kf8nh.wariat.org strikes again! :-) :-( I used -f so I could say /dev/nrmt0... not sure where my fingers got what followed. ++Brandon -- Brandon S. Allbery kf8nh@kf8nh.ampr.org bsa@kf8nh.wariat.org "MSDOS didn't get as bad as it is overnight -- it took over ten years of careful development." ---dmeggins@aix1.uottawa.ca ------------------------------ Date: Tue, 17 Aug 93 10:56:00 +0200 From: Roland_Rosenfeld@p13.flokiste.fido.de (Roland Rosenfeld) Subject: Writing News -> dead.article Hello! I have a big problem with my news.... Everytimes a try to write an article (with tin, trn or nn and with every username), it takes some seconds and the message /usr/local/lib/news/bin/inews: article in /home/roland/dead.article occoures. Nothing more :-( I does not find the article under /usr/spool/news and the other users at my system cannot read it. If you have any idea, what's wrong, please tell me, because I don't understand the shell-scripts (i.e. inews) and I don't find a documentation, which explains my probelm. I would be very happy, if you could help me :-) Ciao Roland -- Roland Rosenfeld Internet : rosenfel@iridium.informatik.uni-bonn.de Roland_Rosenfeld@flokiste.fido.de FIDO : Roland Rosenfeld @ 2:242/503.13 ------------------------------ From: isaac@elrond.physics.mcgill.ca (Martin-D. Lacasse) Subject: Re: sending ^H from backspace Date: Wed, 18 Aug 1993 23:02:39 GMT Try : # stty erase ^V^H The control-V just tell the shell to take the next character as it is. Similarly, stty erase ^v^? puts it back to delete. Martin """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" Martin-D. Lacasse internet: isaac@physics.mcgill.ca Physics Department voice: (514) 398-7027 McGill University fax: (514) 398-8434 Montreal, Quebec, Canada --------------------------------------------------------------------- ------------------------------ From: joel@rac2.wam.umd.edu (Joel M. Hoffman) Subject: Updating to pl12 (from pl8) broke all my net stuff. Help. Date: Wed, 18 Aug 1993 21:16:11 GMT I'm not on a network, so my setup should be simple. Under 0.99.8, I had everything set up so I could telnet, rlogin, etc. to myself. Now, with 0.99.12, everything's broke. YES, I have everything in /etc, not /etc/inet. Even "talk" doesn't work anymore. The error message I get is: Host name lookup failure. I tried telnetting to localhost, and still got that error. What did I miss? Thanks. -Joel (joel@wam.umd.edu) -- ============================================================================= |_|~~ Germany, 1943. ``A little garden, fragrant and full of roses. __|~| 16 Million DEAD. The path is narrow, and a little boy walks along it. A little boy, a sweet boy, like that growing blossom, cnc Bosnia, 1993. When the blossom comes to bloom, cnc HOW MANY MORE? The little boy will be no more.'' - Franta Bass, killed at age 14 by the Nazis ============================================================================= Tell Clinton to stop the genocide: president@whitehouse.gov ------------------------------ From: freeman@eagle.sangamon.edu (Jay Freeman) Subject: Getting X working... Date: Thu, 19 Aug 1993 01:16:50 GMT Hello: I've just installed Linux using the SLS package. I've scanned the FAQ, read various man pages etc., but am still pretty clueless as to how I get X to work. The script Install does not run as it requires the source to be present. Is there a script somewhere in this package that (semi-)automates the setup? Is there one available elsewhere? Is there a good doc somewhere I haven't found? My Hardware consists of: 486-33 ISA bus, 12 MB Ram, 256K ext cache 200 MB Seagate IDE drive 1.44 & 1.2 floppies (w/ Irwin A120 tape drv attached) SoundBlaster Pro w/CDROM (btw, any drivers for this coming?) ATI Graphics Ultra Pro, 2Meg, VGA setup as "shared" 3 button mouse on ATI card I currently have Linux on a 95 MB partition, with OS/2 on the rest (FAT), so I don't think I have room to recompile the X sources. Any help would be appreciated. Thanks, Jay -- ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ + Jay Freeman, WT9S Packet: wt9s@w9yci.il.usa.noam + + internet: freeman@eagle.sangamon.edu + ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ ------------------------------ From: seth@gradient.cis.upenn.edu (Zippy) Subject: 2.88 Mb FD support? Date: 18 Aug 93 23:36:24 GMT Has anyone written a driver for a 2.88 Mb (ED) floppy drive? If so, I'd appreciate getting a copy. Please reply via e-mail to sab@phantom.com Thanks, Seth Bromberger Seth Bromberger seth@gradient.cis.upenn.edu M.S.E. '93, University of Pennsylvania sab@phantom.com ------------------------------ From: SSB1PZP@imcvms.med.navy.mil (PERUCCI, PHILIP A.) Subject: SLS v1.03 and bootmanager? Date: Thu, 19 Aug 1993 01:21:17 GMT Anyone having any luck with SLS v1.03 and OS/2's bootmanager? I see that Slackware addresses this issue, but don't remember seeing anything said about using SLS with bootmanager. I do fine setting up SLS to my second hard disk and booting from floppy (I can't put Linux on the first HD and LILO can't boot 2nd disk) but was wondering if anyone could give me anything to go on for setting up bootmanager to boot /dev/sdb1? =========================================================================== Phil Perucci, Systems Programmer | "I don't speak for any organization ssb1pzp@imcvms.med.navy.mil | and no organization speaks for me" =========================================================================== ------------------------------ From: ins413j@mdw051.cc.monash.edu.au (Markfried Fellensiek) Subject: Re: Optimizing X... Date: Thu, 19 Aug 1993 01:12:18 GMT : space, and a trident 8900 video card, and X runs nice and fine : with Linux 99pl7. I can even do reasonably large compilations and : run Xtetris and stuff. ever notice that xtetris uses _NO_ cpu time, not even 1 pixel on the xload graph.... ------------------------------ Date: Thu, 19 Aug 1993 03:54:38 CET From: BARRY TITMARSH Subject: Re: Getting X working... Mosty with all versions of X its important that when you do get things up and running to Keep safe your Xconfig, I have upgraded through the various versions of X but every time i have used my OLD copy of the Xconfig. and every time i have had a working system. The secret of getting X to work is to find an Xconfig for your VGA card and stick to it. Barry ------------------------------ From: rene@renux.frmug.fr.net (Rene COUGNENC) Subject: Re: cron listed as /USR/BIN/CRON ??? Date: 18 Aug 1993 23:18:44 +0200 Ce brave Thomas Neumann ecrit: > The typical Linux-cron is a derivative of the (excellent) cron > written by Paul Vixie. I use vixie-cron, but since it appeared in Linux, it can be found on my machine as the standard /etc/cron. Is there any reason to name it /usr/bin/crond under LINUX now... ? (The original program from P.Vixie names it crond) -- linux linux linux linux linux linux linux linux linux linux linux linux ------------------------------ From: root@jacobs.jacobs.mn.org (Mike Horwath) Subject: Re: Why use shadow? Date: 15 Aug 1993 10:25:40 -0500 Eugene Kim (eekim@husc11.harvard.edu) wrote: : I installed a version of SLS Linux ages ago. It used the normal : passwd stuff for login, etc. When I installed a more recent : version of of SLS, I noticed it had switched to using shadow : passwords. : What is the advantage to using shadow versus just passwd? I : actually seemed to have more trouble with shadow; when I use : useradd, shadow automatically creates a password for me : (a problem I got around by making the password expire : immediately). : Using shadow also prevents me from just editing the passwd : file to add new users. Does anyone know why shadow is better : than passwd? Shadow offers better security against hackers. Not alot better, but some. If you setup your /etc/default/useradd file correctly, the useradd program will behave alot better. You can specify default home directory tree, expiration, group accoutability, etc.. If you feel up to it, you can still add new users via the /etc/passwd, just edit /etc/shadow with some information that looks some previous information in the file, then just passwd user and change the passwd to match. : -- : Eugene Kim '96 | "Give me a place to stand, and I will : INTERNET: eekim@husc.harvard.edu | move the earth." --Archimedes -- Mike Horwath IRC: Drechsau BBS: Drechsau LIFE: lover root@jacobs.jacobs.mn.org drechsau@jacobs.jacobs.mn.org Jacob's Ladder 612-588-0201 UUCP, UseNet, Linux files, BBS ------------------------------ From: wayne@rose.cs.odu.edu (C Wayne Huling) Subject: Linux trusted by SPARC Date: 19 Aug 93 11:52:09 GMT I have been working on setting up a small network of linux machines for my company. Part of the reasoning is, many people here have to share a single SPARC station, and I suggested using the Linux machines X capability to expand the amount of people capable of working on the SPARC. Well any how, I have all the Linux hosts trusting each other and I am capable of using xon (when specifing a full path?) but I cannot rsh to the SPARC and hence cannot xon to the SPARC. Has anyone succefully accomplished this? Wayne ------------------------------ From: wayne@rose.cs.odu.edu (C Wayne Huling) Subject: Passwd file Date: 19 Aug 93 11:54:10 GMT What is the best method for using the same passwd file for a network of 6 to 8 linux machines? Also is there an easy way that the passwd file for a SPARC be shared by the other machines as well? ------------------------------ From: evansmp@aston.ac.uk (Mark Evans) Subject: Re: Passwd file Date: Thu, 19 Aug 1993 13:28:30 GMT In article wayne@rose.cs.odu.edu (C Wayne Huling) writes: >What is the best method for using the same passwd file for a network of 6 to 8 >linux machines? Also is there an easy way that the passwd file for a SPARC >be shared by the other machines as well? The obvious way is via NIS, which isn't available (at least not in a very useful way yet) otherwise. Do the following do mkdir /passwords on all machines mv /etc/passwd /passwords on one machine ln -fs /passwords/passwd /etc/passwd on all machines put /passwords in /etc/exports on the machine which actually has the password file and add this machine/directory to /etc/fstab on all the other machines. One point do the NFS mounts as read/only, that needs you have to log into a specific machine to change passwords, but it avoids the risk of corrupting the password file. ------------------------------ ** 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 ******************************