From: Digestifier To: Linux-Admin@senator-bedfellow.mit.edu Reply-To: Linux-Admin@senator-bedfellow.mit.edu Date: Sun, 31 Oct 93 04:13:13 EST Subject: Linux-Admin Digest #131 Linux-Admin Digest #131, Volume #1 Sun, 31 Oct 93 04:13:13 EST Contents: Re: comm programs for linux (Denise Tree) Is PLIP possible form a LAN? (Lim Chee Tuck) Re: Textmode charset (Andries Brouwer) Re: finger not reporting last login time! --here's one fix. (Steve DuChene) Re: Sysinstall don't work ("Peter R. Humphrey") Re: Is PLIP possible form a LAN? (Dave Mason) Lazy uucico works only when I watch it! (Alex Freed) Root password problems--can no longer su (Daniel L'Hommedieu) Re: Root password problems--can no longer su (thomas kevi lynch) Re: Textmode charset (Derek Fawcus) Re: Root password problems--can no longer su (Sunando Sen) SYSV init? (PERUCCI, PHILIP A.) Re: finger not reporting last login time! (Juha Virtanen) ---------------------------------------------------------------------------- From: tree@whatever.cs.jhu.edu (Denise Tree) Crossposted-To: comp.os.linux.development Subject: Re: comm programs for linux Date: 30 Oct 1993 09:40:23 GMT In article <1993Oct30.022130.20487@mnemosyne.cs.du.edu>, Mark R. Lindsey wrote: |I'm looking for some decent comm programs that'll compile under linux; my |main problem is a lack of vt100 function key support. I'd also like to see if I |could find something that'd make zmodem work. | |Minicom does neither, plus it screws up as text hits the bottom. I tried to get |Pcomm, but I think I got a really old release that only seems to want to work |on BSD systems. I don't know enough about programming to make it work for |POSIX/linux. :( +------ Try xc ... derived from xcomm. It compiles effortlessly as ported and has auto z-download in the version called, I believe, xc+rz.tgz at tsx-11. It has a good script capability, supprts rtscts, etc. - pretty nice and better than pcomm or minicom IMHO. If you don't like xc then kermit is good too of course. Kermit is available in powdered form at Safeway stores... diet too I think. Get Seyon if you use X. ______________________________________________________________________ _______________ Denise Tree ________________________________tree@cs.jhu.edu _________________________________________.... . . . . . . . . . * ------------------------------ From: lim@ctuck.pl.my (Lim Chee Tuck) Subject: Is PLIP possible form a LAN? Date: Sat, 30 Oct 1993 17:57:27 GMT Hello, Just want to ask, if every of my computer have 2 or more parallel ports, can (theorically, dispite the bugs) PLIP forms a LAN which is connected like this :- +-----> Computer A <----+ | | \/ \/ SLIP Computer B Computer C <--------> SLIP server (Internet gate) /\ /\ | | +----> Computer D <-----+ In a chain, each computer is connected to two other computers. All Linux boxes. One of them is connected to a SLIP server that serves as Internet gateway over a telephone line. Thank you. ------------------------------ Crossposted-To: comp.os.linux.misc From: aeb@cwi.nl (Andries Brouwer) Subject: Re: Textmode charset Date: Sat, 30 Oct 1993 13:01:18 GMT muenx@heike.informatik.uni-dortmund.de (Holger Muenx) writes: >Printing some files containing characters of the IBM charset (blocks and >lines and suchs) yields funny results on a Linux virtual console. The >characters seem to be mapped by some scheme to other characters. However, >it's not just a 8bit->7bit conversion. >What's going on? How can I fix this without changing the files? Is it possible >at all to display the IBM charset on a virtual console? Read /usr/src/linux/drivers/char/console.c (or /usr/src/linux/kernel/chr_drv/console.c if you have an older kernel - the location was changed recently). You will see that there are three translation schemes: Latin (roughly: ISO 8859-1), VT-100 graphics, and none. With the null translation you get what DOS calls code page 437, which contains IBM graphics. The virtual console is in one of two character-set states. You switch between character sets using ^N and ^O (shift in / shift out). You select the character sets you switch between using ESC ( x and ESC ) x where x is one of B,0,U. The former defines the first character set, the latter defines the second character set. The letter B,0,U defines what translation you want. The default is as obtained by ESC ( B ESC ) 0 ^N. ------------------------------ From: s0017210@cc.ysu.edu (Steve DuChene) Subject: Re: finger not reporting last login time! --here's one fix. Date: 30 Oct 1993 16:48:21 GMT I'm running SLS 1.03 and a replacement 0.99pl12 kernel and in looking for /usr/src/shadow, I discovered that I don't have a shadow sub- directory under /usr/src. Am I missing something? If so are these files available at sunsite or tsx-11. This may also help with a problem I have trying to compile the xdm-shadow source code as it halts after not being able to find shadow/pwauth.h. If anyone can point me in the right direction I would appreciate it. Thanks Steve DuChene s0017210@cc.ysu.edu -- Steve DuChene s0017210@cc.ysu.edu or sduchene@cis.ysu.edu Computer Science Youngstown State University A pre-determined amount of chaos is a natural occurance. ------------------------------ From: prh@essence.demon.co.uk ("Peter R. Humphrey") Subject: Re: Sysinstall don't work Date: Sat, 30 Oct 1993 18:27:03 +0000 STEVEN J. KANGAS (sjkangas@major.cs.mtu.edu) wrote: :> Log in as root, go to /usr/bin, vi sysinstall, and change the :> INSTDEV to /dev/fd1. It worked for me. For some reason, I could :> never get the sysinstall script to use the -instdev command. There :> are a few other commands it refuses to take but I can't remember them :> at the moment. My solution is the easy way out but it worked. I was having trouble with sysinstall until I looked at the script and found that I had to specify the installation object last on the command line. I was installing just the X package, from directories x1, x2, ... under /tmp/x, so I used this command line: sysinstall -instdev /dev/hdb6 -instsrc /tmp/x -X11 It worked perfectly - and much faster than from floppies. Hope this helps somebody. -- Rgds Peter Humphrey | prh@essence.demon.co.uk | Voice 0932-343158 Woking, UK. | | Data 0932-353948 ------------------------------ From: dmason@uwaterloo.ca (Dave Mason) Subject: Re: Is PLIP possible form a LAN? Date: Sat, 30 Oct 1993 18:14:33 GMT In article <1993Oct30.175727.201@ctuck.pl.my> lim@ctuck.pl.my (Lim Chee Tuck) writes: > Just want to ask, if every of my computer have 2 or more parallel ports, > can (theorically, dispite the bugs) PLIP forms a LAN which is connected > like this :- > > +-----> Computer A <----+ > | | > \/ \/ SLIP > Computer B Computer C <--------> SLIP server (Internet gate) > /\ /\ > | | > +----> Computer D <-----+ The answer is surely yes, although the routing tables would have to reflect this. (In thinking carefully about my suggestion below, I realized that in the configuration above if A is talking to D via B, B will have to take 2 interrupts (one in, one out) for every character passed along, which will limit your throughput.) What I've been thinking of is: +-----------+-----------+-----------+---- pullup resistors | | | | \/ \/ \/ \/ Computer A Computer B Computer C Computer D <---SLIP to Internet by connecting all the parallel ports via open-collector driver chips. You would have to do an ethernet like ``check busy before talking'' protocol, but that wouldn't be too hard to do. The advantages: only 1 parallel port required per computer, fewer interrupts on intermediate computers (they'll get the interrupts but can ignore them unless the message is for them), you can plug/unplug computers at will (handy for laptops) and the throughput should be the same (which is to say you're not losing anything without the second parallel port, as somebody quoted 25Kbytes/sec which is clearly interrupt-handling limited, as the hardware is capable of 400Kbytes/sec). Any comments from any people who know more about hardware than I do? ../Dave ------------------------------ From: freed@europa.orion.adobe.com (Alex Freed) Subject: Lazy uucico works only when I watch it! Date: Sat, 30 Oct 1993 22:45:33 GMT Hi, folks, I ah happily running Linux on 3 CPUs for about a year now, but there are some things that puzzle me. I have mail via uucp all set up and going, but it only works when I have a debug -X flag set in the uucico invocation line. So I added a cron job to clean up the Debug file, but this is a hack at best. Another weird thing - after I installed new Slackware on one CPU, uucico didn't work any more. The debug file had the last line like "calling system ... at device ACU..." and that was it. It also created a lock file LCK..ttyS3 and died. So I copied all uucp stuff from the working host. Same thing. I got the uucico source and recompiled with -g flag, but couldn't find a problem with gdb, because it now worked, but only with Taylor style config files. That's OK with me - I did'n recompile it again, but it does it again - the @#$%^ uucico doesn't work without at least -X 2 flag. Gdb is no help, because it's a different thread that is supposed to do the work. Any ideas? Thanks. -Alex. -- _______________________________________________________ | -Alex Freed (The opinions expressed are my own. | | However everyone is entitled to them.) | | freed%adobe.com@uucp-gw-1.pa.dec.com | ------------------------------------------------------- ------------------------------ From: eagle@garfield.catt.ncsu.edu (Daniel L'Hommedieu) Subject: Root password problems--can no longer su Date: Sat, 30 Oct 1993 15:07:08 GMT I don't have any idea what happened, but I can no longer su to root. I don't recall changing it, and I don't know of anyone who had access to my computer while it was su'd. I checked the sulog, and nobody else su'd. Anybody have any ideas of what I can do, short of a total reinstall? Thanks! Daniel -- Daniel "eagle" L'Hommedieu / Senior, NCSU CSC Dept / eagle@catt.ncsu.edu Other stupid UNIX error statements: rmdir: linux/: Is a directory ------------------------------ From: lynchtk@wfu.edu (thomas kevi lynch) Subject: Re: Root password problems--can no longer su Date: 31 Oct 1993 00:26:06 GMT eagle@garfield.catt.ncsu.edu (Daniel L'Hommedieu) writes: >I don't have any idea what happened, but I can no longer su to root. I >don't recall changing it, and I don't know of anyone who had access to >my computer while it was su'd. I checked the sulog, and nobody else >su'd. >Anybody have any ideas of what I can do, short of a total reinstall? >Thanks! >Daniel >-- >Daniel "eagle" L'Hommedieu / Senior, NCSU CSC Dept / eagle@catt.ncsu.edu >Other stupid UNIX error statements: >rmdir: linux/: Is a directory Hmm, wouldn't simply booting to a floppy and mounting the hard drive, followed by edditing the /mount/etc/passwd and/or /mount/etc/shadow files work? I would give it a try before re-installing. Tom ------------------------------ Crossposted-To: comp.os.linux.misc From: df@eyrie.demon.co.uk (Derek Fawcus) Subject: Re: Textmode charset Date: Sun, 31 Oct 1993 00:11:00 +0000 In article <2asqr1$rip@fbi-news.informatik.uni-dortmund.de> muenx@heike.informatik.uni-dortmund.de (Holger Muenx) writes: > >Guten Tag! > >Printing some files containing characters of the IBM charset (blocks and >lines and suchs) yields funny results on a Linux virtual console. The >characters seem to be mapped by some scheme to other characters. However, >it's not just a 8bit->7bit conversion. By default the top bit set characters are those found on the Latin-1 set (or as near a translation as matches). You have two choices, convert your files to use these characters, or place the console in PC graphics mode. I'd recommend the first approach but as I guess you want the latter you can send the following: ^[)U - To select IBM display set ^[)0 - To return to default set ^N - To enable graphics ^O - To disable graphics (Where ^ indicates control) i.e use: ^[)U - To initilise : ^N - Before your graphics : ^O - After your graphics : ^[)0 - To restore Note: there are some characters that won't print, those with the following decimal values: 0, 10, 12, 13, 14, 15, 27 I may have some of the above wrong, (if so I'm sure someone will correct me), but give it a go. (Note followups) DF -- Derek Fawcus (G7FVS) df@eyrie.demon.co.uk ------------------------------ From: sens@FASECON.ECON.NYU.EDU (Sunando Sen) Subject: Re: Root password problems--can no longer su Date: Sun, 31 Oct 1993 01:47:53 GMT In article <1993Oct30.150708.20573@ncsu.edu> eagle@garfield.catt.ncsu.edu (Daniel L'Hommedieu) writes: >I don't have any idea what happened, but I can no longer su to root. I >don't recall changing it, and I don't know of anyone who had access to >my computer while it was su'd. I checked the sulog, and nobody else >su'd. > >Anybody have any ideas of what I can do, short of a total reinstall? Have you tried `chmod 4755 su' (while logged in as root, of course)? Sunando Sen ------------------------------ From: SSB1PZP@imcvms.med.navy.mil (PERUCCI, PHILIP A.) Subject: SYSV init? Date: Sun, 31 Oct 1993 02:59:37 GMT I am using Slackware 1.0.5. Currently trying to get getty_ps up. How do I tell if I am running SYSV init or Poe's "simpleinit"? =========================================================================== Phil Perucci, Systems Programmer | "I don't speak for any organization ssb1pzp@imcvms.med.navy.mil | and no organization speaks for me" =========================================================================== ------------------------------ From: Juha.Virtanen@hut.fi (Juha Virtanen) Subject: Re: finger not reporting last login time! Date: 30 Oct 93 19:54:56 GMT Reply-To: jiivee@hut.fi >>>>> On 29 Oct 1993 20:38:36 -0400, awk@char.vnet.net (Alexander Kourakos) said: :> There are as many solutions, it, seems, as there are instances of :> this question...unfortuntely, none of them seem to work for me! None of them worked for me out of the box either. :> One interesting thing, though...fingering "root" always shows the :> correct last login time. Propably because root's lastlog struct is the first one in lastlog file and the ll_time field is always the same size. I decided, at last, yesterday fix this last login -problem in my system. I have (and had) three different fingers installed. Now two of them work just fine. I grabbed this new finger-523.tar.gz and tried it. At last when I got it compiled (it didn't compile just out of the box), I noticed that it is using wrong lastlog struct definition. I use shadow passwords and I had to get lastlog.h from shadow passwd sources. has also hostname field and it's missing from the struct used by shadow passwd suite. This is how shadow passwd suite defines lastlog stuct: struct lastlog { time_t ll_time; #ifdef SVR4 char ll_line[24]; #else char ll_line[8]; #endif }; After realizing this I also fixed the term based finger to tell correctly last login times. It has the lastlog struct definition builtin in the source. I suggest that Linux gets its own lastlog.h headerfile and lastlog struct since the confusion between different lastlog formats gives us those faulty never logged in messages. Juha -- THE CHEMIST'S RULE: Never take more than three data points. There will always be some kind of graph paper on which they fall in a straight line. THE CHEMIST'S RULE, FIRST COROLLARY: If you have only one kind of graph paper, never take more than two data points. ------------------------------ ** 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 ******************************