Linuxers August 2001

linuxers@mm.ilug-bom.org.in

99 participants
301 discussions

[OT] some (inane) thoughts
by noel seq 18 Aug '01

18 Aug '01

>From: "Kishor Bhagwat" <aaaaarrrgghhh(a)yahoo.com> > >Just listen to this > > hypothetical dream (yeah!) I had. In that dream the Lugers of Mumbai > > arranged a competition. There were two teams. They were given a >machine > > connected to the net. One was to protect, one to break into. With > > something concrete people worked and learned. The result of the > > competition is hazy but I vividly remember that on the day of the > > conclusion everyone involved had a much better understanding of >security > > and related issues. > >thats a neat idea! but first, I'd like to learn!! Its a very good way of learning. When do we start. Noel _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp

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[security]tcpd
by Kishor Bhagwat 18 Aug '01

18 Aug '01

By popular choice(dinesh's recommendation and one vote from Jtd ;-) ) , we kick off our first discussion on the files /etc/host.deny and /etc/host.allow (note the order in which i mention them..it has deep spiritual significance!) and their interaction with inetd/tcpd/xinetd. Mebbe some bacground will help before we dive right into the subject... There is one important file..called /etc/services, that lists all the services your box is offering to the outside world. By service, we're referring to ftp, telnet, rlogin(yikes!!), smtp etc.These services 'listen' for requests on standard ports. You can also have other services running on the so-called non-privileged ports(ports > 1024). Now, you wouldnt want anyone (mis)using these services on offer. By misuse we mean using a weakness in any service to break into your(or someone else's) machine.. There are different ways to disallow such use.Different strategies and different points at which you can stop the intruder. On your box,the first point is the kernel itself. All inbound and outbound packets have to pass the kernel.(Obviously, since the kernel contains the implementation of your 'lower layers') . Stop the bugger before he even reaches up the stack.If you choose to do this, then ipchains is your friend. Or, if u want simple to configure protection, your needs arent too great, and the traffic not high..you can implement TCP Wrappers.This is the tcp daemon (tcpd). Like the chocolate wrapper, it wraps and protects your services.How it does that, what are the advantages and disadvantages - i leave open to the next writer..:-) ..and the next..and the next..!! regards, kishor If Linux is not the solution, you have the wrong problem. _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

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external modem
by Harshal Patil 18 Aug '01

18 Aug '01

hmmm... finally i got an external modem (D-Link), my linux box dials my ISP (DishnetDial), but suddenly it terminates with the error "Exit status : 16" . i don't know what's that. i tried to search on google but no luck :( it works well on windows, but i want my linux partition to connect internet. i'm using kppp to dial. thank you. mandrake 8 128mb ram D-Link external modem. ISP- dishnet dial -- Registered GNU/Linux User #188850 --

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request for Linux workshop
by nayan 17 Aug '01

17 Aug '01

hi all, i am engg student of Sardar Patel COllege of Engg and our IEEE student branch (IEEE_SPCE) is holding its Intra-Collegiate Technical Festival called "Nirmaan" It will be held on Friday and Saturday in our college in 3rd or 4th week of September. So for it if ILUG memebers can hold a workshop on Linux in our college for this particular event it would be nice. Please let me know if it is possible. thanks Nayan Secretary IEEE_SPCE

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Smarthost, no fetchmail :(
by Manish Jethani 17 Aug '01

17 Aug '01

When I set smarthost for sendmail, fetchmail doesn't work. It says "could not connect to localhost" or something like that. I'm afraid this is what happens - pop.mail.yahoo.com:110 ( -> fetchmail -> ) localhost:25 -> smarthost:25 -> ??? lost Am I right? How do I solve this? Manish J. -- FORTUNE'S RULES TO LIVE BY: #2 Never goose a wolverine.

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glibc 2.2.4 release announcement
by Kishor Bhagwat 17 Aug '01

17 Aug '01

This was too entertaining to let pass.. <snipped from the bottom of the 2.2.4 release announcement by Ulrich Drepper> And now for some not so nice things. Stallman recently tried what I would call a hostile takeover of the glibc development. He tried to conspire behind my back and persuade the other main developers to take control so that in the end he is in control and can dictate whatever pleases him. This attempt failed but he kept on pressuring people everywhere and it got really ugly. In the end I agreed to the creation of a so-called "steering committee" (SC). The SC is different from the SC in projects like gcc in that it does not make decisions. On this front nothing changed. The only difference is that Stallman now has no right to complain anymore since the SC he wanted acknowledged the status quo. I hope he will now shut up forever. The morale of this is that people will hopefully realize what a control freak and raging manic Stallman is. Don't trust him. As soon as something isn't in line with his view he'll stab you in the back. *NEVER* voluntarily put a project you work on under the GNU umbrella since this means in Stallman's opinion that he has the right to make decisions for the project. The glibc situation is even more frightening if one realizes the story behind it. When I started porting glibc 1.09 to Linux (which eventually became glibc 2.0) Stallman threatened me and tried to force me to contribute rather to the work on the Hurd. Work on Linux would be counter-productive to the Free Software course. Then came, what would be called embrace-and-extend if performed by the Evil of the North-West, and his claim for everything which lead to Linux's success. Which brings us to the second point. One change the SC forced to happen against my will was to use LGPL 2.1 instead of LGPL 2. The argument was that the poor lawyers cannot see that LGPL 2 is sufficient. Guess who were the driving forces behind this. The most remarkable thing is that Stallman was all for this despite the clear motivation of commercialization. The reason: he finally got the provocative changes he made to the license through. In case you forgot or haven't heard, here's an excerpt: [...] For example, permission to use the GNU C Library in non-free programs enables many more people to use the whole GNU operating system, as well as its variant, the GNU/Linux operating system. This $&%$& demands everything to be labeled in a way which credits him and he does not stop before making completely wrong statements like "its variant". I find this completely unacceptable and can assure everybody that I consider none of the code I contributed to glibc (which is quite a lot) to be as part of the GNU project and so a major part of what Stallman claims credit for is simply going away. This part has a morale, too, and it is almost the same: don't trust this person. Read the licenses carefully and rip out parts which give Stallman any possibility to influence your future. Phrases like [...] GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. just invites him to screw you when it pleases him. Rip out the "any later version" part and make your own decisions when to use a different license since otherwise he can potentially do you or your work harm. In case you are interested why the SC could make this decision I'll give a bit more background. When this SC idea came up I wanted to fork glibc (out of Stallman's control) or resign from any work. The former was not welcome this it was feared to cause fragmentation. I didn't agree but if nobody would use a fork it's of no use. There also wasn't much interest in me resigning so we ended up with the SC arrangement where the SC does nothing except the things I am not doing myself at all: handling political issues. All technical discussions happens as before on the mailing list of the core developers and I reserve the right of the final decision. The LGPL 2.1 issue was declared political and therefore in scope of the SC. I didn't feel this was reason enough to leave the project for good so I tolerated the changes. Especially since I didn't realize the mistake with the wording of the copyright statements which allow applying later license versions before. I cannot see this repeating, though. Despite what Stallman believes, maintaining a GNU project is *NOT* a privilege. It's a burden, and the bigger the project the bigger the burden. I have no interest to allow somebody else to tell me what to do and not to do if this is part of my free time. There are plenty of others interesting things to do and I'll immediately walk away from glibc if I see a situation like this coming up again. I will always be able to fix my own system (and if the company I work for wants it, their systems). <end> (shudder!!) kishor _________________________________________________________ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com

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Configure can't find sys/socket.h
by Michael Rodrigues 16 Aug '01

16 Aug '01

Hi, I was trying to compile libxml2 which is required for KDE 2.2 's help (documentation) . Configure can't find sys/socket.h which is required for "socketlen_t". So compile fails. This is very strange as sys/types.h and other files are found. I checked /usr/include/ and can confirm that socket.h is present in sys/. KDE 2.2 requires libxml2 and so I can' proceed without it while compiling KDE 2.2 from source. I am running Slack 8.0 with Linux 2.4.8. Any Suggestions Please !! Thanks in advance. Michael. ----------------------------------------------- Runbox Mail Manager - www.runbox.com Free online email application

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Re:[ILUG-BOM] Chat
by shahazad＠linuxplanet.nu 16 Aug '01

16 Aug '01

Hi, Well if u have forgotten ur nick passwd & is unable to identify to /nickserv then only 1 person can reset ur pass & he is the CSOP .. only a CSop or the IRC Opertator - services administrator can reset ur nickserv passwds .. CSOP can reset/drop ur channels & ur nicks both ... send a memo/mail to the CSop or services admin to drop ur nick & u can re- register again.. cheers~ </shahazad> >How do I recover my password if I've forgotten it from >irc.ilug-bom.org.in? >Philip -- If the human brain were so simple that we could understand it, we would be so simple we couldn't. 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 _______________________________________________ Next Lug Meet on 17th August on IRC @ #linuxers at 4.30pm Linuxers mailing list Linuxers(a)mm.ilug-bom.org.in http://mm.ilug-bom.org.in/mailman/listinfo/linuxers -- Get your firstname@lastname email for FREE at http://Nameplanet.com/?su

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Chat
by Philip S Tellis 16 Aug '01

16 Aug '01

How do I recover my password if I've forgotten it from irc.ilug-bom.org.in? Philip -- If the human brain were so simple that we could understand it, we would be so simple we couldn't. 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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Re: [ILUG-BOM] Kernel Compilation
by Rajen Parekh 16 Aug '01

16 Aug '01

On Thu, 16 Aug 2001, Sameer Shinde wrote: > Hi all, > > If any one is going to compile/recompile his/her > kernel, plz let me know. As I've never compiled the kernel. > I would like to watch the process before I compile my kernle. > I'm equally reading How-to on kernel compilation but, still > I would like to see it before I do. Read the mail archives of this list. Lot of mails have been exchanged regarding problems/solutions/information on kernel compilation. Rajen.

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Linuxers August 2001