From: Digestifier To: Linux-Admin@senator-bedfellow.mit.edu Reply-To: Linux-Admin@senator-bedfellow.mit.edu Date: Fri, 15 Oct 93 15:20:30 EDT Subject: Linux-Admin Digest #111 Linux-Admin Digest #111, Volume #1 Fri, 15 Oct 93 15:20:30 EDT Contents: Re: Dos + Linux 2 Controllers (Charles Hawkins) lost+found cleanup ? (Ron Edgar) Re: Laser priter queries (Hannes Reinecke) Problems with setuid shell scripts (Alasdair Mackintosh) Re: OS programming in unix ? (Nick Hilliard) How Do I make a boot disk? (Don Van Drei) Re: talk between linux-systems and Suns (Stefan Weiss) Swap file on an msdos or nfs file system. (E.A.Neonakis) Re: talk between linux-systems and Suns (matt m.) Re: Problems with setuid shell scripts (Neal Becker) Re: talk between linux-systems and Suns (Alan Cox) Re: User acct problems with emacs (Alan Cox) Re: Shadow Passwords? (Dante) Networking help (route) (Jeff Dew) Re: OPT, REC, IMP (root@scrum.greenie.muc.de) Where is the man page for xftp? (Yi-Tsun Chang) Getting XTdisk to work. (An augery for battle.) SLIP problems (datagram fragmentation) (Alec) Re: talk (ytalk!) between linux-systems and Suns (Olaf Titz) ---------------------------------------------------------------------------- From: ceh@eng.cam.ac.uk (Charles Hawkins) Subject: Re: Dos + Linux 2 Controllers Date: Fri, 15 Oct 1993 09:02:33 GMT In article <29kdt1$ejm@monet.ccad.uiowa.edu>, morrison@ccad.uiowa.edu (Michael Morrison) writes: |> Is is possible to boot and use DOS off of the 2nd hard drive controller |> in your system? I have 2 MFM drives with Linux installed on them (with |> LILO), and just got an IDE hd+controller that I want to run DOS off of. |> |> Must I install the atdisk patches for LILO to recognize this other |> controller in the system, when it will be DOS only? Then if I can get |> this to work, will DOS even work using the 2nd controller in the system? |> (I realize that was not a Linux question, but I figured someone here |> would know) |> It is not possible for DOS to use any hard disk controller that the bios doesn't know about. Therefore unless you have a hard-disk controller with an bios that allows DOS to recognise it as secondary, you cannot use a secondary controller under DOS. Linux will recognise a secondary hard-disk controller if the atdisk2 patches are applied. However you still need to boot the Linux kernel either from floppy or from a hard disk on your primary controller. Your best bet is probably to use the IDE as primary with DOS and a small linux root partition, and the MFM as secondary. That assumes that the MFM controller can be set up in this way, of course. This in essence is how I have my system set up. Charles Hawkins +--------------------------------+ +-----------------------------------+ + Cambridge University + + Telephone : (44) 223 332861 + + Engineering Department + + Fax : (44) 223 332662 + + Trumpington Street + + E-mail : ceh@eng.cam.ac.uk + + Cambridge CB2 1PZ + + + +--------------------------------+ +-----------------------------------+ ------------------------------ Subject: lost+found cleanup ? From: csron@wizard.weizmann.ac.il (Ron Edgar) Date: Fri, 15 Oct 1993 09:44:49 GMT After a crash, the rc boot script ran e2fsck -a on my Slackware (0.99.12#2) and some anonymous files ended up in lost+found, err...what do I do with them ? I ones removed them on previous SLS installation and destroyed my system... On the e2fsck man (8) page it said there is no "lost+found cleanup". Some things work different now (for example my Xdefaults is not read any longer and I get the whatever defaults. Thanks for any help. Ron. -- ______________________________________________________________ | Ron Edgar | | | | TeX: " When you pronounce it correctly to your computer, the | | terminal may become slightly moist. " D. E. Knuth. | |______________________________________________________________| ------------------------------ From: hare@mathi.uni-heidelberg.de (Hannes Reinecke) Subject: Re: Laser priter queries Date: Fri, 15 Oct 93 11:17:30 GMT simmonr5387@cobra.uni.edu wrote: : Another question, : well, make that 2 ! :) : 1) Can any laser printer support .dvi format, If not how do I tell which : ones can. : 2) Are Sharp laser writers supported by linux (sue me, I dont like HP and : I want quality :) ) : -- rob to 1) Any printer emulating PCL should work with the Laserjet-Driver. Another possibility is to generate a PostScript-File, and print it through Ghostscript. try 'gs -h' to get a list of supported printers. to 2) what's the interface of the sharp ? I don't know, what language they did support. If it's something better known, you could get a driver for that. And anyway, Lpr works with any printer ( Well, at least to print ASCII-text; but for any other text you still need a filter). Have a look at '/etc/termcap' and the appropiate man-page. Hope this helps Greetings from Heidelberg Hannes (hare@vogon.mathi.uni-heidelberg.de) ------------------------------ From: mackintosh@ug.eds.com (Alasdair Mackintosh) Subject: Problems with setuid shell scripts Date: 15 Oct 1993 12:54:16 GMT Reply-To: mackintosh@ug.eds.com (Alasdair Mackintosh) I've been unable to get setuid shell scripts to work under Linux. I create the following shell script owned by root: > #!/bin/sh > > id > > echo "Hello" > tmp.file I use 'chmod 4777' to set the permissions on the script, but when I run it as an ordinary user, 'id' simply prints out my ordinary user id, and 'tmp.file' ends up being owned by the ordinary user, not by root. Trying a similar thing on HP and Sun systems at work yields the expected results, which suggests that there is something funny about the setuid mechanism under Linux. Has anyone noticed this behaviour? Is there a known fix? Thanks, Alasdair --============================================================================== Alasdair Mackintosh mackintosh@ug.eds.com Unigraphics Division Electronic Data Systems ------------------------------ From: nick@quay.ie (Nick Hilliard) Subject: Re: OS programming in unix ? Date: Fri, 15 Oct 1993 12:31:16 GMT Zeyd M. Ben-Halim (zmbenhal@netcom.com) wrote: : In article <1993Oct14.130303.18000@cobra.uni.edu> simmonr5387@cobra.uni.edu writes: : >Hey, : > : >Does anyone know of a good book that teaches programming unix (ie using : >system calls and so forth) if so can I get title and author. : >BTW I am a good C programmer, i just have never written anything to interact : >with unix OS. So a newbie book is NOT what I am looking for. : Advanced Programming in the UNIX Environment, W. Richard Stevens, : Addison-Wesley Professional Computing Series, : ISBN 0-201-56317-7 APUE is well worth the money. If you want to get into POSIX programming, take a look at "The Posix Programmer's Guide" published by O'Reilly & Co. It's quite a good reference manual, and gives a good introduction to writing portable Unix programs. Nick -- | Nick Hilliard | e-mail: nick@quay.ie | | Quay Financial Software, | Phone: [+353] 1 6612377 | | Ferry House, Lower Mount St, | Fax: [+353] 1 6607592 | | Dublin 2, Ireland. | Opinions: I think; therefore I disclaim. | ------------------------------ From: dvandrei@gadfly.lerc.nasa.gov (Don Van Drei) Subject: How Do I make a boot disk? Date: 15 Oct 1993 14:40:16 GMT Reply-To: dvandrei@lerc.nasa.gov I've corrupted my floppy boot disk and need to make a new one, what is the command? I've installed a, b, and c, but don't know where the command makebootdisk is. Also it states that to created a boot on my harddrive I can 'play with /usr/src/lilo', well that doesn't exist either. -- ===================================================== Donald Van Drei NASA Lewis Research Center dvandrei@gadfly.lerc.nasa.gov (216) 433-9089 ===================================================== ------------------------------ From: stw@tnet.de (Stefan Weiss) Subject: Re: talk between linux-systems and Suns Date: 15 Oct 1993 15:15:10 +0100 brei@ouzo.informatik.rwth-aachen.de (Norbert Breidohr) writes: >I tried to do a talk between me (logged in to my linux-site) and >an user on a sun-sparcstation. I know, linux and SunOS by default >use different versions of the talk-protocol. So I tried to use >several versions of talk and talk-daemons on linux-side but none >got a connection to the sun. On boths machines talk displays the Here're some lines from the comp-sys-sun-faq: 10) Why does the talk command fail between SunOS and any other manufacturer's equipment(like DEC)? SunOS has the old BSD 4.2 version of talk. The old talk uses "machine dependent" byte ordering. Since DEC has different byte order the two talks can not communicate(even if you use "otalk" on the DEC machines). Also, most vendors have the newer version of talk from BSD-4.3 and this version is not compatible with the Sun Version(which is BSD-4.2). The solution is to get and install the new version of talk because it uses "network" byte ordering and it is compatible with most Vendors current talk implementations. "New Talk" is available via anonymous ftp from several sites including thor.ece.uc.edu(Get the file /pub/sun-faq/ntalk.tar.Z). So I guess, one way to solve your problem might be to install a news version of 'talk' on the sun and not on linux. -- -------------------------------------------------------------- Stefan Weiss - stw@tnet.de -------------------------------------------------------------- TouchNET - Internet, Systemadministration, Schulung - Muenchen ------------------------------ From: neonakis@terpsi.csi.forth.gr (E.A.Neonakis) Subject: Swap file on an msdos or nfs file system. Date: 15 Oct 1993 18:09:02 +0200 Is it possible for the swap file to reside on an msdos file system, or on an nfs server disk? That would help running linux on a PC that boots from floppy and its own hard disk is dedicated to msdos. When I tried it, swapon complained that it could not find the swap signature, although I have used mkswap. If anybody has tried to setup such a swap file, I would appreciate it to know his experiences. E.A.Neonakis ------------------------------ From: mmidboe@cs.uah.edu (matt m.) Subject: Re: talk between linux-systems and Suns Date: Fri, 15 Oct 93 16:46:41 GMT I have been using ytalk from linux and sunos 4.1.3 now and it works just fine. In fact ytalk is much much better than any other talk programs out there that I have seen. You can get the ytalk v3 pl1 source from any archives that have the comp.sources.unix stuff on 'em. It compiled pretty much with just a make on my part. You will love ytalk because it does things like word-wrap, and multiple people in one talk session, auto-ring and auto-invite and other neat things. Plus it works were other talk programs for me have failed. ------------------------------ From: neal@ctd.comsat.com (Neal Becker) Subject: Re: Problems with setuid shell scripts Date: 15 Oct 1993 16:27:18 GMT This is a feature not a bug. Thank god it doesn't work as you describe on my hpux9.01 system. ------------------------------ From: iiitac@swan.pyr (Alan Cox) Subject: Re: talk between linux-systems and Suns Date: Fri, 15 Oct 1993 16:18:42 GMT In article <29j7tc$obu@urmel.informatik.rwth-aachen.de> brei@ouzo.informatik.rwth-aachen.de (Norbert Breidohr) writes: >I tried to do a talk between me (logged in to my linux-site) and >an user on a sun-sparcstation. I know, linux and SunOS by default >use different versions of the talk-protocol. So I tried to use Suns use a prehistoric broken talkd. Replace the sun talkd with ntalk or better still with the ytalk stuff. >I think the problem could be solved using a different talk and/or >talkd on linux-site. What I'm really missing is something link >"/etc/in.talkd" under linux, there only is /etc/in.ntalkd (on tsx-11 The original talkd is obsolete and why sun never shipped the right talk is beyond me. I guess the decision was made by the man who conceived solaris... Alan iiitac@pyr.swan.ac.uk ------------------------------ From: iiitac@swan.pyr (Alan Cox) Subject: Re: User acct problems with emacs Date: Fri, 15 Oct 1993 16:24:56 GMT In article girardi@rniil.rni.sub.org (Norbert J. Girardi) writes: >Two comments, although there is a big flame war in c.o.l.development already >going on: >1. This question is *NOT* LINUX related. It should have been asked > in gnu.emacs.help. Funny. The guy got it with Linux, its running on Linux so I guess its linux related and Linux people knew the answer. Now no doubt you'll mutter about too much traffic in which case taking point 2 you are then a hypocrit >2. It is kind of impolite to ask for an eMail reply since other people > might also be interested in an answer. And I suppose these other people lack the brain to mail the first guy asking 'can you forward me any replies', so the 10 people who car get the answer and the estimated 15000 who dont care dont have to read it > People trying to help are wading through tons of noise in these > groups. Therefore, people asking questions should do so, too. Either to Of course they are wading through tons of noise. From lazy self centred people like you who can't be bothered to use email and who tell everyone to post replies. Welcome to my kill file and to my email bit bucket filter list. Alan ------------------------------ From: gt2584a@prism.gatech.EDU (Dante) Subject: Re: Shadow Passwords? Date: 15 Oct 93 17:08:05 GMT smp@solaria.mil.wi.us (Steven M. Palm) writes: > >I installed from the Slackware 1.04 release, and find it quite nice. But >I see that it also uses the Shadow Passwords. What exactly are Shadow >passwords? >How are they different from a normal setup, and will they cause any problems >at all for future software packages?? Is there a way to remove them if they >do? > user passwords on unix systems are normally stored in the file /etc/passwd, along with the user's uid, gid, home directory, shell, etc. the file is (of necessity for any program that needs to know a particular value for the current user) publicly readable. the downside of doing it this way is that someone could collect all the passwords for a system out of that file, then try to crack them by various means. what the shadow passord suite does is to store those passwords separately, so as to not compromise security while still allowing programs to access the rest of the fields in a user's /etc/passwd entry. i have never heard of them causing any problems, and removing Shadow would probably not be worth the effort, since it will not affect anything might do. -- "If I thought my answer were to one who might ever return to the world, this flame would shake no more; but since from this depth none have ever returned alive, I answer you without fear of infamy." from Dante's _The Inferno_, XXVII, ll. 61-66. ------------------------------ From: 217092@llnl.gov (Jeff Dew) Crossposted-To: comp.os.linux.help Subject: Networking help (route) Date: 15 Oct 1993 17:26:14 GMT Reply-To: 217092@llnl.gov We have a problem getting our Linux machine to interface with our lan. Here are the symptoms: -I can ping from a client and it responds ok. -When I telnet to Linux, I never get a login prompt -Other clients (ftp,mosaic,etc.) send packets ok, but receive nothing after the first packet. -Outbound from Linux we get a 'Network is unreachable' error when running any client apps. Here is my configuration: Server: Linux SLS 1.03 (v0.99p12) Artisoft ae2 ethernet card @ 0x300 irq 3 Client: w4wg artisoft card chameleon tcp/ip Any help would be greatly appreciated. Thanks. --- Jeff J. Dew Internet: jdew@llnl.gov Lawrence Livermore National Lab PacBell Net: (510) 422-2694 ------------------------------ From: root@scrum.greenie.muc.de Subject: Re: OPT, REC, IMP Date: Fri, 15 Oct 1993 10:59:10 GMT tornado@esu.edu (Reed Mangino) writes: >Could someone please tell me what OPT, REC, and IMP mean, respectively? >I saw these next to each package during the installation of SLS 1.03. >Thanx! > I think they are just hints for those with not enough HD-space :-)) OPT means optional REC means recommended IMP means important (I'm not quite sure about that one , never seen with SLS 1.01 , and I didn't install the later versions completely) So these abbrevations should just tell you , whether the asked packages are absolutly needed for running a linux system or not . Hope this helps Michael Buchenrieder -- ---- Michael Buchenrieder * mibu@scrum.greenie.muc.de Siegesstr. 11 , 80802 Munich , Bavaria , FRG Tel.:0049-89-394196 * FAX: 0049-89-398986 ------------------------------ From: ytchang@magnus.acs.ohio-state.edu (Yi-Tsun Chang) Subject: Where is the man page for xftp? Date: 15 Oct 1993 18:10:06 GMT I just get the xftp_bin for linux from sunsite.unc.edu. But, I didn't see any documentation (esp. the man page) about it. Is there a man page for xftp? Where is the source code? Thanks in advance. alex ------------------------------ From: macbeth@cats.ucsc.edu (An augery for battle.) Subject: Getting XTdisk to work. Date: 15 Oct 1993 18:28:51 GMT Can anybody give me instructions or advice about getting the XT-disk driver going? I have a WD10025 board and a Fuji FK-309-26 drive. other stuff in my system: 16-bit PVGA card w/ 512k. IDE/floppy/game/2s/1p card. 2400b int modem (soon to be sold) (com3) 14.4kb int modem on com7 (3e8 irq5) any help would be appreciated. thanx. -- _______________________________________________________________________________ macbeth@cats.ucsc.edu | So, you think C++ is OO? /\ /\ | Realism, n : Nature as seen through //\\//\\ | the eyes of a toad. // \/ \\ A C B E T H | --- Open locks // \\ ----------=====}=====O | --- Whoe'r knocks. "By the pricking of my thumbs, | I like my opinions, and you can't Something wicked this way comes!" | have them! Tpppppppppppbh!!! ------------------------------ From: sergeyva@acf2.nyu.edu (Alec) Subject: SLIP problems (datagram fragmentation) Date: 15 Oct 1993 18:33:43 GMT Hi! I got SLIP working, but whenever I do anything (especially Telnet and FTP) it gives me the following error: IP: *** datagram fragmentation not yet implemented *** SRC = 128.122.128.12 DST = 128.122.250.30 (ignored) Anybody has any ideas what is it related to? Telnet is actually working, but FTP doesn't transfer a single file. My setup: 486SX/8MB RAM Running 0.99pl13e (same problem with plain pl13) BOCA 14.4 modem. Remote terminal server is ANNEX. Sorry if didn't include all necessary info, I'm not sure what is relevant to the case :-) -- //////////////////////////////////////////////////////////////////////////// % Alec Internet: sergeyva@acf2.nyu.edu % % 40 East End Ave. #4-H Bitnet: sergeyvs@nyuacf % % New York, NY 10128 Bellnet: (212)737-5949 % \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ ------------------------------ From: uknf@rzstud1.rz.uni-karlsruhe.de (Olaf Titz) Subject: Re: talk (ytalk!) between linux-systems and Suns Date: 15 Oct 1993 18:53:23 GMT In article <1993Oct15.164641.6828@cs.uah.edu>, matt m. wrote: > I have been using ytalk from linux and sunos 4.1.3 now and it > works just fine. In fact ytalk is much much better than any other talk > programs out there that I have seen. You can get the ytalk v3 pl1 > source from any archives that have the comp.sources.unix stuff on 'em. > It compiled pretty much with just a make on my part. You will love I have tried ytalk on Linux, but the compiler barfs at something missing of curses stuff (there is one object module required for which there is no source, if I remember correctly - taking it out gives link errors). Have I missed something fundamental? :-) 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 ******************************