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Possible spam hole in mail servers
by Philip S Tellis 30 Aug '01

30 Aug '01

Please try this on your mail server. I have already tried it on many servers, including postfix and sendmail. All are vulnerable. telnet mailhost 25 helo hostname mail from: <> rcpt to: user@mailhost data ... the important things are - 1. the mail from address is blank: <> 2. the rcpt to addresses are within the mail servers domains so relay is not a problem This allows spammers to send mail using a null return address. In the mail, the address gets translated to MAILER-daemon. To fix it in sendmail, go down to ruleset 3, search for a line that starts with R<> It should look like this: R<> $@ < @ > MAIL FROM:<> case change it to this: R<> $#error $@ 5.1.3 $: "User address required" That should block anonymous senders. Any idea why this is allowed (there is a special rule to allow it) at all? Philip -- Repel them. Repel them. Induce them to relinquish the spheroid. - Indiana University fans' chant for their perennially bad football team Visit my webpage at http://www.ncst.ernet.in/~philip/ Read my writings at http://www.ncst.ernet.in/~philip/writings/ MSN philiptellis Yahoo! philiptellis

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Reminder: ACM Seminar, LISP/CLOS, Thursday 30/8, SNDT Juhu campus..
by Durgesh D Rao 29 Aug '01

29 Aug '01

Dear Colleague, This is to remind you of the following event. Please note that the day and venue are different from the usual ACM seminar -- the day is Thursday, and the venue is SNDT Santacruz/Juhu. Regards, - Durgesh, for ACM Mumbai ACM Seminar Thursday, August 30, 2001 - 6:00 p.m. Title: A fresh look at LISP and CLOS Speaker: Durgesh D. Rao (NCST) Venue: Dept. of Computer Science, SNDT, Juhu Campus, Juhu Tara Road, Opp. Lido Theatre, Santacruz (W), Mumbai 400049. (ph. 6606648) Abstract: LISP has traditionally been regarded as an esoteric, "AI" language, and hence largely ignored by the programming community. What is not widely appreciated is that LISP, and its OO extension, CLOS, are general-purpose languages that are elegant and powerful, and are used in a number of important non-AI applications due to the many advantages they provide. Moreover, LISP and CLOS have pioneered several crucial ideas that are slowly finding their way into mainstream languages such as C++ and Java. In this seminar, I will try and illustrate those key features of LISP and CLOS that make them interesting and useful as languages for rapid prototyping and dynamic OOP. About the Speaker: Durgesh Rao is a Research Scientist in the KBCS division at NCST. He enjoys using LISP, and likes to share this joy with others. ---------------------------------------------------------------------------- Durgesh D Rao (DDR) | Email: durgesh(a)ncst.ernet.in Research Scientist, KBCS Division | Ph: 6201606x372(w), 7563437(r) National Centre for Software Technology | Fax: +91-22-6210139 Gulmohar Rd 9, Juhu, Mumbai 400049, INDIA.| Web: www.ncst.ernet.in/~durgesh ----------------------------------------------------------------------------

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Re: [ILUG-BOM] suggestions for linux workshop
by dodobh＠nettaxi.com 29 Aug '01

29 Aug '01

Manish Jethani spewed into the ether: >Speed - Programs on Linux seem to run faster than their Windows > counterparts. Staroffice is bad in this respect. <snip> >Also, you can show aj a demo of KDE 2 or Ximian GNOME. That >should be enough to lure anyone, my guess. And windowmaker also. It rocks. >DON'T tell aj about the command line, pipes, fifos, POSIX >compliance, the UNIX philosophy, mail/news/web servers, etc. >You'll scare him away. This depends on the aj though. You can definitely interest someone using VSNL and troubled by the email policy about how to run a mail server. But stay away from sendmail.cf. I would suggest postfix or qmail for a demo. Setup two machines, one as a workstation and the other as a server. That will help in attracting the appropriate kind of crowd. Devdas Bhagat >Manish J. > >-- >yo-yo, n.: > Something that is occasionally up but normally down. > (see also Computer). > > >_______________________________________________ >Next Online IRC LUG Meet on 31st Aug @ 4:30pm >http://mm.ilug-bom.org.in/mailman/listinfo/linuxers ------------------------------------------------------------ Shop Smart Compare Prices on Name-Brand Products from Name-Brand Stores!! http://www.smartshop.com/cgi-bin/main.cgi?ssa=4099

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Re: [ILUG-BOM] suggestions for linux workshop
by dodobh＠nettaxi.com 29 Aug '01

29 Aug '01

LInux LOver spewed into the ether: >i guess i can share some experience.... > >1) You do not need to reboot frequently..... >2) While using Xwindow you get 4 Desktops whereas in windows you get only >one. This is a function of your window manager. See how many desktops/workspaces it can support And you can run more than one X server too. >3) Free Support from mailing lists. >4) You get to know more about your hardware.... >5) Better Internet Connectivity.... >6) Better Hardware Detection with Redhat 7.1 (my experience) >7) Better Sound Quality if the Sound Card is supported. Add to that, a whole lot of tools that make your computer using life better. The ability to send mails using your own mail server, run your own web server, lack of viruses, a certain level of separation of user capabilities, TeX, the ability to script mundane tasks..... Devdas Bhagat ------------------------------------------------------------ Shop Smart Compare Prices on Name-Brand Products from Name-Brand Stores!! http://www.smartshop.com/cgi-bin/main.cgi?ssa=4099

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Re: RADIUS
by dodobh＠nettaxi.com 29 Aug '01

29 Aug '01

Suresh Ramasubramanian spewed into the ether: >+++ Chandra Kanth [27/08/01 18:06 +0530]: >> can anyone tell me about the RADIUS (remote access dial in user service) >> servers available for linux... and also the most widely used one among them... > > There's Cistron, I believe. Mukund Deshmukh implemented that as a sample > for BSNL Nagpur recently. And Gnuradius, from gnu.org, and yard at freshmeat and freeradius. Devdas Bhagat ------------------------------------------------------------ Shop Smart Compare Prices on Name-Brand Products from Name-Brand Stores!! http://www.smartshop.com/cgi-bin/main.cgi?ssa=4099

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Antivirus (was Re: [ILUG-BOM] [OT] Anyone using Powersurfer Broadband?)
by dodobh＠nettaxi.com 29 Aug '01

29 Aug '01

Kinjal Sonpal spewed into the ether: >> > AFAIK, they do not. I think it's available in Malad (E). Info >> Lousy. > >Excuse me, what's lousy in it? Is it for me or for Powersurfer >ppl? >Hope it's not for me ;-) The lousy thing is that I can't get broadband just yet. <snip> >BTW, is there any good Anti-Virus s/w in Linux which can check >for 98 files also. I can't afford to purchase Anti-Virus s/w in >Win98. Then you can't afford to purchase it for Linux either. The Linux versions are mostly server editions, and very expensive. Devdas Bhagat ------------------------------------------------------------ Shop Smart Compare Prices on Name-Brand Products from Name-Brand Stores!! http://www.smartshop.com/cgi-bin/main.cgi?ssa=4099

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Re: Linux turns 10
by Parul Mathur 29 Aug '01

29 Aug '01

Hi, I believe around 12 linuxers went to various colleges on August 25. Can someone please give us a small description of that day's events? I would like to know which colleges were visited, what was the student turnout, what topics were discussed etc. The site http://www.linux10.org/ was set up by some Linux enthusiasts in Silicon Valley as a way to co-ordinate the birthday celebrations there. There were links to news about birthday celebrations in other countries as well. I was a trifle disappointed to see India absent. Perhaps ILUG-BOM can submit it's account of activties as an Indian contribution? Parul Mathur Get Your Private, Free E-mail from Indiatimes at http://email.indiatimes.com Buy Music, Video, CD-ROM, Audio-Books and Music Accessories from http://www.planetm.co.in

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[OT] Mailing list archives
by N. Shrikant 29 Aug '01

29 Aug '01

Are the mailing list archives on the ilug-bom server edited for relevance/clarity/whatnots ? - Shrikant

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RE: [ILUG-BOM] Cyrix, AMD cpu
by shailesh bhate 28 Aug '01

28 Aug '01

> Anybody installed GNU/Linux computers with M2/Cyrix/AMD cpu. Have you > encountered any problems. A friend of mine has a M2 system I have installed GNU/Linux RHL 7.1 system on my AMD Athlon beast. I haven't used it much since, but there were absolutely no problems during installation and during regular use also. I guess since Cyrix and AMD (don't know about M2) are x86 compatible processors, there *should not* be any problems. Regards, Shailesh.

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mailing for intra-office purpose
by Kishor Bhagwat 28 Aug '01

28 Aug '01

hi! to make better use of my free time in office, I want to start an internal mailing facility. All clients(about 100) will be using microsoft outlook.We already have a company mailing system in place, for within and outside india offices. my mailing server will be only for bombay office, so no outside access or mailing will happen. I've never installed or administered a mailing software, so I was hoping I'd get pointers on what to start with and how and any gotchas u guys know. tia, kishor _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

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