From: Digestifier To: Linux-Admin@senator-bedfellow.mit.edu Reply-To: Linux-Admin@senator-bedfellow.mit.edu Date: Sat, 8 Oct 94 07:13:40 EDT Subject: Linux-Admin Digest #161 Linux-Admin Digest #161, Volume #2 Sat, 8 Oct 94 07:13:40 EDT Contents: ftape and FC-20 controller (Robert Broughton) WUFTPD 2.4 won't compile (Peter Drier) Re: ftp freeze problems (Daniel Tran) User process accounting for 1.1.51+ (/usr/adm/acct) (Robert Sink) Re: Security hole - has noone noticed so far? (Ron Atkinson) init/pppd (Jeffrey Wescott) Re: Assuring that a PPP link stays up... (Vernon Schryver) Re: Mystery Chip...AMD (Sam Brown) Re: RLOGIN security - more info! (Gregory Trubetskoy) Re: PROBLEM: Sun locks up mounting Linux NFS drive (Frank Gehrke) Re: booting in single user mode? (Matt Beal) Re: Linux NOT logging people out on hangup (Joe Beiter) Re: PACKET SNIFFER FOR LINUX (Panzer Boy) kernel message in log file - what does it mean (Daniel Tran) Re: Ncurses signals broken? (Zeyd M. Ben-Halim) Re: [help] user cannot update password (take 2) (Mike Suzio) How to get a swapfile going under UMSDOS? Help? (Rob Hardy) Re: PACKET SNIFFER FOR LINUX (Roman Gollent) ---------------------------------------------------------------------------- From: Robert_Broughton@mindlink.bc.ca (Robert Broughton) Subject: ftape and FC-20 controller Date: Mon, 03 Oct 94 22:23:59 -0800 I have a Colorado 250-mb tape drive connected to the floppy controller. It works fine with MS/DOS. I have v1.1.51 of Linux, and the latest ftape with all the patches. It won't work. I consider the possibility that it won't work because there's something weird about my el cheapo floppy controller. I decide to invest in an FC-10 tape controller, and figure that this is bound to work. I called up a couple of stores, and learned that the FC-10 is not a current product, and it's been replaced by the FC-20. So, the question is, will ftape work with the FC-20? -- *-*-*-*-*-*-*-*-*-*-* Robert Broughton Robert_Broughton@mindlink.bc.ca "We calm and reassure. We embrace people with the message that we're all in it together. That our leaders are infallible and that there is nothing, absolutely nothing wrong." - Miles Drentell, _thirtysomething_ ------------------------------ From: drierp@mail1.its.rpi.edu (Peter Drier) Subject: WUFTPD 2.4 won't compile Date: Thu, 6 Oct 1994 19:11:54 GMT Has anyone been able to compile wuftpd 2.4 on a recent install of slackware. Or even an old one. I had it running 6 months ago, but now I can't get it to compile. It seems to have a problem with a struct statement in one of the includes. I also tried to apply the linux patch but it said it was already patched. Any thoughts? Peter Drier. p.s. e-mail would be best, this group is too busy. ------------------------------ From: dtran@emelnitz.ucla.edu (Daniel Tran) Subject: Re: ftp freeze problems Date: Tue, 4 Oct 1994 20:48:35 GMT In article mea@utu.fi (Matti Aarnio) writes: >There is some problem in NCSA-Telnet's FTP with some versions of >Linux TCP code, thus I would like to know a bit more about these >troubled DOS machines: >dtran@emelnitz.ucla.edu (Daniel Tran) writes: >>In article <36f5lb$3ab@hobbes.cc.uga.edu> taylor@pollux.cs.uga.edu (john taylor) writes: >>>Craig Tavener (craig@chem.chem.wits.ac.za) wrote: >>>I've got linux (Slackware2.0) recently installed on a 468-66. It has an >>>ethernet card and is networked to Novell and and UNIX. When ftp/telnetting >>>from linux to elsewhere things generally work well. However, when trying to >>>ftp into the linux machine (most notably from the novell network) the >>>session frequently freezes. Pressing cntl-C returns the ftp prompt, but the >>>last action ends up being truncated. A good example of this is a file >>>transfer. All packet but the last one get through. Then it freezes and the >>>last packet it lost. >>> >>>Does anyone have any idea what is going on here? >>> >>>I have the same problem. When I ftp from my novell server to my linux box. >>>The entire file will transfer except the last 1 or 2K. How can this be fixed? >>> >>>John >>I do not have that problem at all. My workstation sits on the Novell network, >>I am constantly telneting and ftping to my linux box w/o any problems. >>I'm running kernel 1.1.35 >>Daniel Tran - dtran@emelnitz.ucla.edu > What TCP/IP stacks does each of you have/use on their > DOS machines ? I am using Novell Lan WorkPlace version 4.12 TCP/IP stakcs > What is your Linux kernel configuration regarding following: > PC/TCP compability > Disable NAGLE I don't remember but I'm sure that I did not mess around with these parameters when I recompiled my kernel for networking support. Daniel Tran - dtran@emelnitz.ucla.edu > Some successes have been obtained with: > PC/TCP compability y > Disable NAGLE n > (I haven't tested this FTP problem with PC/TCP compab Y, though..) > /Matti Aarnio ------------------------------ From: sinkr@universe.digex.net (Robert Sink) Subject: User process accounting for 1.1.51+ (/usr/adm/acct) Date: 7 Oct 1994 13:39:00 -0400 Does anyone know of a patch that will add user process accounting for Linux v1.1.51+ ? All I can seem to locate are patches for 1.1.18 which do not work beyond that. Or at least I don't have skill to patch them by hand. Any help would greatly be appreciated - please reply to this message or below email address. -- ------------------------------------------------------------------------- |:| Robert Sink | "I don't want to start any blasphemous |:| |:| sinkr@universe.digex.net | rumors, but I think that GOD has a sick |:| |:|--------------------------| sense of humor and when I die I expect |:| |:| (c) 1994 Gurkware, Inc. | to find him laughing." -- Depeche Mode |:| ------------------------------------------------------------------------- *PGP 2.6 Public Key Available By Fingering This Account* *or via the PGP Server: pgp-public-keys@pgp.mit.edu* ------------------------------ From: ron@chaos (Ron Atkinson) Subject: Re: Security hole - has noone noticed so far? Date: 7 Oct 1994 18:09:10 GMT Michael H Price II (mhp1@Ra.MsState.Edu) wrote: : Of course, dare I say it, everyone could just go ahead and use sendmail : instead of smail ;-) Exactly what I just did. I'm tired of hearing and seeing Smail bugs and at the moment I can't deal with these security problems anymore. I installed sendmail last night and I'm getting others to install it too until Smail can get fixed. I don 't know enought about Smail to fix the problems myself, but if I did then I would try to fix it. For now I'll stay with sendmail. : Michael Ron ------------------------------ From: wescott@spectrum.cs.bucknell.edu (Jeffrey Wescott) Subject: init/pppd Date: 04 Oct 1994 05:26:17 GMT Reply-To: wescott@acm.org I seem to remember someone posting here about having the init process respawn pppd whenever the ppp link goes down. I tried the following line in my /etc/inittab, but had a few problems: pp:345:respawn:/usr/local/sbin/pppd &>/dev/null The problems I had were that sometimes when restarting init with 'init q', init would complain that it was respawning too fast and disabling for 5 minutes. However, if I got a ppp link going, 5 minutes later the process would be respawned, thus killing the link. Very frustrating ... What process does it check to see if it needs to be respawned is my question. Or, how can I change my inittab to make it work? Any help is appreciated. -- Jeffrey Wescott ------------------------------ Crossposted-To: comp.protocols.ppp From: vjs@calcite.rhyolite.com (Vernon Schryver) Subject: Re: Assuring that a PPP link stays up... Date: Tue, 4 Oct 1994 16:11:06 GMT In article <36hp4e$fo@Tut.MsState.Edu> simmons@EE.MsState.Edu writes: >Does anybody have a good, well thought-out system of assuring that a PPP >link between two UNIX boxes stays up, through the use of crontab entries? > ... >Presently, I have a crontab entry on the campus machine which is invoked >every {14,29,44,59} minutes past the hour. It checks to see if the link >is up by pinging the remote machine a few times, and grepping for a positive >responce. ... >This mechinism seems somewhat kludgy, and I was wondering if anybody >has implemented any better way. (And yes, the PPP link does die every >now and then due to natural causes, requiring a mechinism.) Use a PPP implementation that supports "camping," a form of "demand dialing" where the systems bring the link back up as soon as it goes down. I bet that many PPP implementations that support full demand dialing can have their timeouts adjusted to give the same effect. Or just use `ping -q` to keep the link active. Vernon Schryver vjs@rhyolite.com ------------------------------ From: rigor@crl.com (Sam Brown) Crossposted-To: comp.sys.ibm.pc.hardware.systems,comp.os.linux.misc Subject: Re: Mystery Chip...AMD Date: 6 Oct 1994 05:42:45 -0700 picked up a dx-2-80 amd, works great. $210 was my cost $320 w/green vlb motherboard. extremely stable and fast ------------------------------ From: grisha@cais.cais.com (Gregory Trubetskoy) Subject: Re: RLOGIN security - more info! Date: 7 Oct 1994 18:39:10 GMT Another possibilty is something recently posted on comp.os.linux.announce: smail -d -D/etc/i_am_broken noon@universe makes an /etc/i_am_broken file, which can be edited by group "users". It wokes very well for .rhosts files too. A fix to the .rhosts problem is to add the -l option to rshd and rlogind lines in the /etc/inetd.conf file. This option prevents the use of the .rhosts files for loging in. Who knows what the tin security hole is? Cheers! P.S. My Linux is getting securer by the second... -- ================================================================ Gregory Trubetskoy grisha@cais.com ================================================================ ------------------------------ From: gridley@toe.CS.Berkeley.EDU (Frank Gehrke) Subject: Re: PROBLEM: Sun locks up mounting Linux NFS drive Date: 7 Oct 1994 18:56:02 GMT In article , Alan Cox wrote: >rsize=1024,wsize=1024 as options or better still get a 1.1.51 kernel, the >floppy disk patch and Florians excellent NFS speedup patch and you'll be >a much happier man. > Have these patches been applied to the 1.1.52 kernel? If not from what ftp site might they be available? I've experienced the same problems. thanks ------------------------------ From: publius@eng.umd.edu (Matt Beal) Subject: Re: booting in single user mode? Date: 4 Oct 1994 20:30:27 GMT CVL staff member Nate Sammons (nate@seurat.VIS.ColoState.Edu) wrote: : Can you issue a "boot -s" type command to get into single user mode? : The problem is, my machine goes to init 6 (xdm) but X is not : configured properly, so it sits there and flicks in and out of sync : with the monitor, and I cannot do anything. I need to be able to go in : and change the initial init state of the machine, and the easiest : way I can think of (with other UN*Xs) is to boot it into single user mode. : Any suggestions? (not in the FAQ that I could find) To change the initial startup mode, edit /etc/inittab. Mine has: # Default runlevel. id:5:initdefault: near the top of the file. In this example, I boot up in run level 5. According to the man page for init, if you do not have this line in your inittab, you will be asked for a runlevel at the console at boot time. Best bet though is probably just setting it to 5. Matt ------------------------------ From: swrek@leary.cosmic.com (Joe Beiter) Subject: Re: Linux NOT logging people out on hangup Date: 3 Oct 1994 23:11:34 -0400 We have a network of 5 linux systems running .47 and .50 with three being used as dialup systems (with digiboards). Since each has 8 modems on them we are finding this problem to be both valid and *very* annoying. Our latest suspect is bash but we're pretty baffled. We've even written a program designed to detect and inform us when someone has dropped carrier and has a run-away process so we can go kill them off manually. -- -=@=-=@=-=@=-=@=-=@=-=@=-=@=-=@=-=@=-=@=-=@=- Joe.Beiter@Cosmic.com -=*=- Cosmic Communications My views and my opinions are my views and my opinions. ------------------------------ From: panzer@dhp.com (Panzer Boy) Subject: Re: PACKET SNIFFER FOR LINUX Date: 4 Oct 1994 17:10:38 -0400 Roman Gollent (rgollent@force.stwing.upenn.edu) wrote: : Hernan Lobos (hlobos@cec.uchile.cl) wrote: : : Where is available??? : Hmm, geee... I wonder why you would want a packet sniffer?? >:) I wonder why you care.... Packet sniffer make life easy when debugging problems, many people can't afford a wonderful little box called a network monitor, or whatever you want to call them. Sniffers also help when trying to determine where certain type of electronic attacks are coming from, as opposed to your roomate booting up single user and changing roots password. Security through obscurity, whether by not explaining algorithms, or by not distributing tools is not the way to go. If you want to prevent sniffing, install SKEY. This provides you with a relatively secure one time password system. Takes couple hours to install, and about 15-20 minutes of reading to fully understand. People can sniff all they want on your system, you never use the same password to log in from unsecure areas. -- -Matt (panzer@dhp.com) "That which can never be enforced should not be prohibited." ------------------------------ From: dtran@emelnitz.ucla.edu (Daniel Tran) Subject: kernel message in log file - what does it mean Date: Fri, 7 Oct 1994 16:23:31 GMT HI, Twice this morning, my Linux networking component stopped working. I had named running so when my station didn't communicate to the outside world, I thought named has failed. I killed the named process, restarted but nothing work. I then ping'ed some hosts using the real IP address - nothing work. I shut down the system, brought it back up. Everything worked again. A while later, the same problem re-occurred. I looked at log files in /usr/adm and found this: Oct 7 08:11:13 viper kernel: redirect from 01af6180 01af6180 is the IP hex number of my router (128.97.175.1) Can someone tell me what the "redirect from 128.97.175.1" means?? This machine has been running solidly for at least 3 months now. Daniel Tran -dtran@emelnitz.ucla.edu ------------------------------ From: zmbenhal@netcom.com (Zeyd M. Ben-Halim) Subject: Re: Ncurses signals broken? Date: Tue, 4 Oct 1994 03:47:00 GMT In article <36oucm$795@nic.lth.se>, Mikael Nordqvist wrote: > >Generally, it does fix the problem. But not for aumix :) Either it >relies on bugs in the (old) version of ncurses that the author of >aumix used, or new bugs ones were introduced in newer versions of >ncurses (I believe the latter). The screen is quite messed up with >1.8.5. I'll take a look at aumix myself (I'm assuming it's on sunsite). My guess is that the author might have relied on erasing functions taking the current attribute in account. As pointed out by Eric S. Raymond this behavior did not conform to SVR4. >I have had much trouble with colors in ncurses 1.8.5. The only way I >can get reasonably sure not to trigger a bug is to call refresh() >before changing color/attributes (this shouldn't be necessary - one >refresh after all changes ought to be enough). Scrolling regions with >colorized characters is something I never got to work, there was >always some characters that changed colors during the scrolling. I >sent a bugreport (with a short program to show the problem) to Zeyd >about a month ago, but got no reply (the reason could be a faulty >mail-daemon or an overworked Zeyd :-) I'm afraid the latter :-( I'm slowly getting back but it is much slower. I don't know if 1.8.6 fixes your problems but if you want to test it drop me a line. >Slightly off subject: Does the linux-console have support for turning >the cursor on and off? I am updating the screen often (several >times/second) and it's a bit annoying having the cursor flashing all >over the screen. Sure it does! see curs_set() and the cnorm/civis/cvvis capabilities of terminfo. Zeyd -- --- Zeyd M. Ben-Halim zmbenhal@netcom.com NCURSES is available from ftp.netcom.com:pub/zmbenhal/ncurses Current version is 1.8.5 ------------------------------ From: msuzio@tiamat.umd.umich.edu (Mike Suzio) Subject: Re: [help] user cannot update password (take 2) Date: 7 Oct 1994 15:39:38 -0400 arm@helix.nih.gov (Andrew_R._Mitz) writes: >We are running linux 1.1.18 loaded with Slackware 2.0. >When root runs the passwd program there is no problem. >However, when another user runs passwd the program >quits after entering the new password (twice) with: >Can't open /etc/ptmp, can't update password. >Running ls -l to see /etc I get: >drwxr-xr-x 10 root root [stuff] etc/ You need to add the setuid bit on passwd and chsh. They were accidently unset-uid when the Slackware distrib was done last time around. This has been confirmed by the Slackware compiler. Once this is done, you should be all set. You do this by executing: chmod u+s passwd chmod u+s chsh Make sure you are in the directory where these binaries are, of course (/usr/bin, I think). - Mike ------------------------------ From: ccscon26@superior.carleton.ca (Rob Hardy) Subject: How to get a swapfile going under UMSDOS? Help? Date: Fri, 7 Oct 1994 14:12:38 GMT Hello I have a system partially going with UMSDOS on a dos partition. I have one partition but the install software didn't succeed in making a proper bootable partition. I will describe the problem at the end of the message. How does one setup a swap FILE under UMSDOS. I have tried setting the file up when I install from setup. It works for the duration of the installation but not after that. /etc/fstab won't take something like /var/swapfile as a swap file as it doesn't exist. (/var/swapfile I mean) I tried doing a swapon /var/swapfile 6000 but this didn't work. How am I goofing? I understand that UMSDOS is alpha but the installation software doesn't work very well when it comes to setting up the swap file and to making the boot disk. I have tried twice to make one and each time it has be unsuccessful. The second time nothing happened at all! It reads the disk and that's it... Light goes out, no prompt, no text, no nothing.. -- ======================================================================= Robert Hardy Voice|Data:(613)226-(2326|8665) CCS Computer Consultant 2nd Year Systems Engineering @ Carleton University, Ottawa, Canada Email: (rhardy@chat|aa617@freenet|robert@aurora)+.carleton.ca "Linux the Choice of a GNU Generation!" unknown ======================================================================= ------------------------------ From: rgollent@force.stwing.upenn.edu (Roman Gollent) Subject: Re: PACKET SNIFFER FOR LINUX Date: 4 Oct 1994 20:09:24 GMT Hernan Lobos (hlobos@cec.uchile.cl) wrote: : Where is available??? : Hernan Hmm, geee... I wonder why you would want a packet sniffer?? >:) Roman ------------------------------ ** 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 ******************************