From: Digestifier To: Linux-Admin@senator-bedfellow.mit.edu Reply-To: Linux-Admin@senator-bedfellow.mit.edu Date: Mon, 27 Sep 93 09:13:50 EDT Subject: Linux-Admin Digest #78 Linux-Admin Digest #78, Volume #1 Mon, 27 Sep 93 09:13:50 EDT Contents: Re: security and Linux binaries (James A Robinson) Re: PC for linux (Davor Cubranic) Re: SMAIL: problems with MXed sites in SLS (Brian Vandivier) net-2 rlogin failed ext2fs INODES (Bill Heiser) More [/usr/bin/more] wasRe: What's the Difference? (X) (Paul J. Brewer) Re: [Not] enough SLS bashing (Brett Person) xterm -e login root? Why not? (John Carroll) Re: [Not] enough SLS bashing (Bill C. Riemers) Re: net-2 rlogin failed Re: What's the Difference? (X) (Des Herriott) Advice & Chat Anyone? (UK?) (Jonny Farringdon) Re: ext2fs INODES (Remy CARD) NFS on Linux (Basil P. Duval EPFL - CRPP 1015 Lausanne CH) ---------------------------------------------------------------------------- From: jimr@world.std.com (James A Robinson) Subject: Re: security and Linux binaries Date: Sun, 26 Sep 1993 17:33:01 GMT craig@adikia.sccsi.com (Craig Groeschel) writes: >Having the source gives me a warm fuzzy feeling, but I don't know >how legitimate that feeling is. It may just be the opposite of FUD. >What am I going to do? Grep for "exec" "system" "unlink" "open" "#define"? >Getting source code from a reputable, uh, source--e.g., tsx-11 or prep--may >also be a good idea. In the commercial world this is trusting your vendor. I have to agree, one has to remember that there are software distributers that accidently release viruses with distribution disks. I forgot what the name of the company that did this recently was, but there was a HUGE uproar over it. IMO FTP sites are fairly safe, and if you are really worried, remember that if anybody has problems with it, they will probably post a message on the Usenet. If you are worried, you can wait a few weeks until the software ahs been out for awhile, then get it. Jim ------------------------------ From: cubranic@whale.st.usm.edu (Davor Cubranic) Crossposted-To: comp.os.linux.help,comp.os.linux.misc,comp.os.linux Subject: Re: PC for linux Date: 27 Sep 1993 00:01:57 GMT TODOROV Krassimir (todorov@cui.unige.ch) wrote: : I dont know if it is easy to answer to my questions, : may be it is in the FAQ-s. : What PC must I have to run linux on it? RTF FAQ man or you'll miss a lot of fine information. -- Davor Cubranic cubranic@whale.st.usm.edu ------------------------------ From: vandi@garfield.catt.ncsu.edu (Brian Vandivier) Subject: Re: SMAIL: problems with MXed sites in SLS Date: Sun, 26 Sep 1993 22:51:14 GMT >In comp.os.linux.admin, Michael 'Moose' Dinn (dinn@ug.cs.dal.ca) wrote: >:> smail doesn't seem to want to send mail to sites with only MX records and no >:> "real" IP addresses. >:> Anyone else find this problem, or have a fix? I'm having the same problem in which I get mail back saying that my smart host can not be found. I have no problem pinging the smart host. I've tried several different hosts and all return the same thing. I can send mail to machines, but not to domains names. Could someone post about a solution to this. I'm using the smail that comes with SLS 1.03 Thanks Brian vandi@catt.ncsu.edu *********************North Carolina State University*********************** * Brian M Vandivier * |\ | /----\ /----\ | | * Email: * * 402F Wood Hall * | \ | | |____ | | * vandi@catt.ncsu.edu * * P.O. Box 21532 * | \ | | | | | * Phone: * ------------------------------ From: ghhwang@pllab1 () Subject: net-2 rlogin failed Date: 27 Sep 1993 02:03:34 GMT Dear friends, I have installed SLS 1.03. There is net-2 binary code. However, when i use the command "rlogin" the following message appeared: > rlogin sun370 rcmd: socket: Permission denied Anyon can help me? ghhwang@cs.nthu.edu.tw ------------------------------ From: bill@bhhome.ci.net (Bill Heiser) Subject: ext2fs INODES Date: Mon, 27 Sep 1993 01:27:13 GMT I tried to back up my system using 'cpio' tonight, and started seeing things like the following: cpio: usr/local/lib/news/batchlog: truncating inode number ./usr/local/lib/news/batchlog cpio: usr/local/lib/news/batchlog.o: truncating inode number ./usr/local/lib/news/batchlog.o Is there a known problem with INODE numbering in ext2fs? Looking at the directory in question, I see inode numbers like this: # ls -li batchlog batchlog.o 113871 -rw-rw-r-- 1 news 13 3127 Sep 26 21:15 batchlog 113873 -rw-rw-r-- 1 news 13 5664 Sep 26 05:00 batchlog.o Is it just 'cpio' that is broken, ie. can't handle ext2fs's inode numbers? It seems to me that it probably doesn't matter what CPIO does with inode numbers ... since if I use cpio to Extract a file (or files) from the backup, it will generate a new inode number when it restores the file to the filesystem, no? This is SLS 1.03, upgraded to the p13 kernel. Should I replace the cpio pgm with something else? What I *really* want is a "dump" program, but haven't seen one yet for LINUX. Thanks in advance. Bill -- Bill Heiser bill@bhhome.ci.net -or- heiser@world.std.com ------------------------------ From: pjb@cco.caltech.edu (Paul J. Brewer) Crossposted-To: comp.os.linux.misc,comp.os.linux.help,comp.windows.x Subject: More [/usr/bin/more] wasRe: What's the Difference? (X) Date: 27 Sep 1993 02:43:35 GMT >more stops working under X, etc... Well, to get really wierd, Ive seen the more problem, and its window manager dependent. I remember it didnt "more" under twm, but is ok under ctwm. Aint that weird? I havent tried to duplicate it. Good Luck Paul Brewer pjb@cco.caltech.edu ------------------------------ From: person@plains.NoDak.edu (Brett Person) Subject: Re: [Not] enough SLS bashing Date: Mon, 27 Sep 1993 03:42:32 GMT In article jcburt@gats486.larc.nasa.gov writes: > >And a 1.2MB 5-1/4" floppy is configured as the boot floppy drive on the majority >of 386/486 machines sold today, so why *not* support what is a defacto standard? >And since it *is* supported, why even *suggest* it's not by telling someone to >"buy more hardware..." Slackware Does support 5.25 booting. And, I supppose, if you were even barely technically competent, you could roll your own distribution from Slackare on 5.25. I'd like to make just some general Unix points about all this. * The kernel is FAT. You people have demanded so many features that the kernel is now beyond a reasonable size. The zImage on my system is well over 200K. Bash is almost 300K. Libc.so.4.4.1 is 600K. Lets see. I make that at about 1100K and we havent added in the stuff that we actually NEED to make a boot disk be functional. I sure hope ls, mkdir, rmdir, /etc/passwd, mount, umount, shutdown et al are all under 100K. -- Brett Person Guest Account North Dakota State University person@plains.nodak.edu || person@plains.bitnet ------------------------------ From: jcarr@dbsoftware.com (John Carroll) Subject: xterm -e login root? Why not? Date: Mon, 27 Sep 1993 02:49:06 GMT I know there must be some way to specify what terminals/pseudo-terminals root may log in to or be su'ed to. What is it? Thanks in advance John -- <<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<> < DDDDDD &&& BBBBBB |John B. Carroll _/ "If the > < DD DD && && BB BB|Dun & Bradstreet Software, Inc._/ thunder don't > < DD DDD &&& BBBBB |3445 Peachtree Rd, NE _/ get you then > < DD DD & && & BB BB|Atlanta, GA 30318 _/ the lightnin' > < DDDDDD &&& & BBBBBB |(404) 239-3466 / will! 8^)" > <<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<>><<> ------------------------------ From: bcr@bohr.physics.purdue.edu (Bill C. Riemers) Subject: Re: [Not] enough SLS bashing Date: 27 Sep 93 05:08:57 GMT In article person@plains.NoDak.edu (Brett Person) writes: >In article jcburt@gats486.larc.nasa.gov writes: >* The kernel is FAT. You people have demanded so many features that the >kernel is now beyond a reasonable size. The zImage on my system is well >over 200K. Bash is almost 300K. Libc.so.4.4.1 is 600K. >Lets see. I make that at about 1100K and we havent added in the stuff that >we actually NEED to make a boot disk be functional. I sure hope ls, mkdir, >rmdir, /etc/passwd, mount, umount, shutdown et al are all under 100K. Speaking of file sizes, anyone know how libc-lite.so.4 is made? It shows up as 600k, but only really takes 200k on the floppy. So if you do a du on SLS a1.5, you find 1600k worth of files... I realize the trick is to point the extra sectors at the end of each of the shared library functions to dummy sectors, but how does one edit the file system to do this type of trick? The reason I ask, is because I'm trying to update the library version on my emergency boot floppy. Bill ------------------------------ From: ghhwang@pllab1 () Subject: Re: net-2 rlogin failed Date: 27 Sep 1993 06:04:03 GMT ghhwang@pllab1 wrote: : Dear friends, : I have installed SLS 1.03. There is net-2 binary code. However, when i use : the command "rlogin" the following message appeared: : > rlogin sun370 : rcmd: socket: Permission denied : Anyon can help me? : ghhwang@cs.nthu.edu.tw Thanks. I have solved this problem by "chmod 4755 rlogin". ------------------------------ Crossposted-To: comp.os.linux.misc,comp.os.linux.help,comp.windows.x From: dnh@olly.mfltd.co.uk (Des Herriott) Subject: Re: What's the Difference? (X) Reply-To: dnh@mfltd.co.uk Date: Mon, 27 Sep 1993 08:55:33 GMT In article , sens@FASECON.ECON.NYU.EDU (Sunando Sen) writes: > > [ ... ] > >The shells launched via xdm do not read your .profile, so whatever is in >there is not taking effect. If you want the shell to read your .profile, >then start xterm with the `-ls' (login shell) option... An alternative to this is to have your .xsession run your .profile as one of the first things it does. Have it start your favourite window manager later in the script, and any other clients, like a xterm console, a clock etc. Your WM will inherit all the environment variables from your .xsession (which in turn got them from your profile) And any X clients started by the window manager will also know about your environment from your WM. Something like this: # highly simplified .xsession if [ -f $HOME/.profile ] . $HOME/.profile fi xclock& xterm -C -T console& vtwm -- Des Herriott, / As a wise man once said, Micro Focus, Newbury. / +44 (0635) 565354 / "It takes a lot of brains to be smart, dnh@mfltd.co.uk / but it takes some neck to be a giraffe." ------------------------------ Crossposted-To: comp.os.linux.help From: ucjtrjf@ucl.ac.uk (Jonny Farringdon) Subject: Advice & Chat Anyone? (UK?) Date: Mon, 27 Sep 1993 09:16:48 GMT Reply-To: ucjtrjf@ucl.ac.uk Is there anyone with Linux experience (in the UK?) who i could have a phone/e-chat with? I've run a small Sun network for a few years, but am getting some PCs very soon, and thought Linux + X would be perfect. Just wanted to chat about it to someone with some experience. Basicaly want: micro-emacs, xterms, gcc, &c. No network cards &c. Just 3 stand alone machines, for now. Even if you're not in the UK, we could still have an e-chat maybe. Some general advice/reasurance would be helpfull. Thanks, JOnny. -- Dept of Psychology, UCL, London. UK. WC1E 6BT Tel: (+44) 71 387 7050 x5418 (+44) 71 380 7777 direct tone-dial 5418 Fax: (+44) 71 436 4276 j.farringdon@psychol.ucl.ac.uk ucjtrjf@ucl.ac.uk ------------------------------ From: card@masi.ibp.fr (Remy CARD) Subject: Re: ext2fs INODES Date: 27 Sep 1993 10:23:54 GMT In article <1993Sep27.012713.628@bhhome.ci.net> bill@bhhome.ci.net (Bill Heiser) writes: ] ] I tried to back up my system using 'cpio' tonight, and started ] seeing things like the following: ] ] cpio: usr/local/lib/news/batchlog: truncating inode number ] ./usr/local/lib/news/batchlog ] cpio: usr/local/lib/news/batchlog.o: truncating inode number ] ./usr/local/lib/news/batchlog.o ] ] Is there a known problem with INODE numbering in ext2fs? No known problem with ext2 fs inode numbering, see below. ] Looking at the directory in question, I see inode numbers like ] this: ] ] # ls -li batchlog batchlog.o ] 113871 -rw-rw-r-- 1 news 13 3127 Sep 26 21:15 batchlog ] 113873 -rw-rw-r-- 1 news 13 5664 Sep 26 05:00 batchlog.o ] ] ] Is it just 'cpio' that is broken, ie. can't handle ext2fs's inode ] numbers? It seems to me that it probably doesn't matter what CPIO ] does with inode numbers ... since if I use cpio to Extract a file ] (or files) from the backup, it will generate a new inode number when ] it restores the file to the filesystem, no? In fact, cpio saves the inode number as a 6 char field (including the '\0' terminator). So, it cannot save inode numbers greater than 99999. I don't think that this is a problem since a new inode will be allocated to the files when you restore them. ] ] This is SLS 1.03, upgraded to the p13 kernel. Should I replace the ] cpio pgm with something else? What I *really* want is a "dump" program, ] but haven't seen one yet for LINUX. Hmmm. On my machine, I use tar. dump is not available for Linux. Actually, dump needs to understand the physical structure of the file system and that's why it has not been ported to Linux (Linux ext2 fs is quite different from BSD FFS and I guess that porting dump to ext2 fs is not trivial). I may try to port it someday but I have lots of other things higher on my TODO list. ] ] Thanks in advance. ] Bill ] ] -- ] Bill Heiser bill@bhhome.ci.net -or- heiser@world.std.com Remy -- Remy Card card@masi.ibp.fr ------------------------------ From: duval@elpp1.epfl.ch (Basil P. Duval EPFL - CRPP 1015 Lausanne CH) Subject: NFS on Linux Date: 27 Sep 1993 10:20:17 GMT Reply-To: DUVAL@ELPP1.EPFL.CH Hello World, I have a fully functioning Linux system on the InterNet and all seems to fly. However, I can not publish my Linux FilSystems to other machines although I am able to mount other FileSystems on the PC. showmount to the Linux machine shows that there are no puslished machines, where as showmount -e directly reflects the contents of /etc/exports. Would someone try and tell me what is wrong. I thought that as soon as the exports file was OK and that the two deamons were up and running that you could see the published filesystems... Basil Duval DUVAL@ELPP1.EPFL.CH ps: showmount and showmount -e from all sorts of other machines gives the same replies. It appears to see the exports file, but not export the FS ------------------------------ ** 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 ******************************