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14152 discussions

MTNL billing discrepancy
by Dr. Sharukh K. R. Pavri. 23 Apr '09

23 Apr '09

> How do I find out what is being downloaded ? or what program is the > guilty one ? assuming you have one nic connected to the modem tcpdump -vv -i eth0 will dump all packets passing thru eth0 -- Rgds JTD -- here's something seemingly interesting: ------------------ Client-IP opium.local Client-Ethernet-Address 00:13:20:24:d3:9c (oui Unknown) [|bootp] 10:35:02.283333 IP (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576) mygateway1.ar7.bootps > opium.local.bootpc: BOOTP/DHCP, Reply, length 548, xid sharukh@opium:~$ tail -f tcpdump.log 10:34:10.736003 IP (tos 0x0, ttl 46, id 16613, offset 0, flags [DF], proto TCP (6), length 638) tibet108.server4you.de.https > opium.local.48013: P 587:1173(586) ack 1172 win 816 <nop,nop,timestamp 171741530 726567> 10:34:10.736050 IP (tos 0x0, ttl 64, id 62638, offset 0, flags [DF], proto TCP (6), length 52) opium.local.48013 > tibet108.server4you.de.https: ., cksum 0x5c6d (correct), 1172:1172(0) ack 1173 win 414 <nop,nop,timestamp 727012 171741530> 10:34:51.595111 IP (tos 0x0, ttl 39, id 8288, offset 0, flags [DF], proto TCP (6), length 638) 192.108.114.19.9001 > opium.local.56648: P 587:1173(586) ack 1172 win 214 <nop,nop,timestamp 515952536 725310> 10:34:51.595160 IP (tos 0x0, ttl 64, id 22722, offset 0, flags [DF], proto TCP (6), length 52) opium.local.56648 > 192.108.114.19.9001: ., cksum 0x82a5 (correct), 1172:1172(0) ack 1173 win 432 <nop,nop,timestamp 737226 515952536> 10:34:56.585063 arp who-has opium.local tell mygateway1.ar7 10:34:56.585086 arp reply opium.local is-at 00:13:20:24:d3:9c (oui Unknown) 10:35:02.003708 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 328) opium.local.bootpc > mygateway1.ar7.bootps: BOOTP/DHCP, Request from 00:13:20:24:d3:9c (oui Unknown), length 300, xid 0x4d76d060, Flags [none] (0x0000) Client-IP opium.local Client-Ethernet-Address 00:13:20:24:d3:9c (oui Unknown) [|bootp] 10:35:02.283333 IP (tos 0x0, ttl 64, id 0, offset 0, flags [none], proto UDP (17), length 576) mygateway1.ar7.bootps > opium.local.bootpc: BOOTP/DHCP, Reply, length 548, xid --------------------------------- who/what is this <tibet108.server4you.de.https> regards, Sharukh -- Dr. Sharukh K. R. Pavri. Homoeopath, Linuxer. Honi soit qui mal y pense. [Evil to him who evil thinks.] -- Motto of the Order of the Garter (est. Edward III) ----- End forwarded message ----- -- Dr. Sharukh K R Pavri. Homoeopath, Linuxer. Experience is what you get when you didn't get what you wanted.

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Internet Broadband connection problem
by george＠annamsoft.com 22 Apr '09

22 Apr '09

Dear All, I have a ADSL broadband connection of BSNL. The ADSL modem is connected to our Internet Server (Fedora box) to one of the NIC card(eth1), the other NIC card (eth0) is connected to our LAN switch. This Fedora box acts as the gateway machine to the Internet for our LAN. The Problem: ------------ The LAN users were not getting the Internet. I saw the PPP link was up and running on the Server and also the Modem link was ok., but I couldn't ping to their (ISP's) end. (Destination port unreachable message was coming). I called the ISP and after a while, the LAN users were able to get the Internet but during the same time, I was not able to ping to their gateway and also to their DNS IP from my Internet Server. Then when i restarted my iptables script file, i was able to ping ISP's gateway and their DNS IP too. I just want to know, when my LAN users were getting the Internet, Why I couldn't get the reply from either their (ISP's) gateway / their DNS IP. Hope someone might be able to explain me what the problem could be. Thanks in Advance, Regards, George

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Re: [ILUG-BOM] Document Management Systems
by Chirag Wazir 22 Apr '09

22 Apr '09

Hi, jitendra wrote: > Does any one have any experience of DMS like Alfresco > or KnowledgeTree? Which is better? > Any case study or any deployment one can see? I have tried out KnowledgeTree and was quite impressed. The install was straightforward enough, but some significant time and effort would need to be spent training the end users about permissions, groups, roles etc. I presume you have already looked at the demo at: http://demo.knowledgetree.com/login.php One issue I did not look at at all was security since it was to be deployed on an internal LAN server. If your deployment is to be accessible online, I would suggest you pay special attention to this. Also keep in mind that it is quite memory intensive on the server. -- Chirag Wazir http://chirag.freeshell.org

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Document Management Systems
by jitendra 22 Apr '09

22 Apr '09

Does any one have any experience of DMS like Alfresco or KnowledgeTree? Which is better? Any case study or any deployment one can see? -- jitendra

2 1

Job Vacancy: Linux System Administrator in Singapore
by Double Negative Singapore Pte Ltd 21 Apr '09

21 Apr '09

*Technology/Systems Engineer for Visual Effects Film Facility* Calling all IT and Tech professionals, as well as recent graduates, Hollywood is coming to Singapore and we want you to join us. Double Negative Singapore is the Singapore based branch of the largest visual effects for film company in Europe. If you are an experienced IT all-rounder, ideally specializing in Systems Administration in a *Linux environment* or you are a bright recent graduate keen to move into our vibrant industry and are capable of learning fast and using your initiative we want to hear from you. We are currently in production on: Harry Potter and the Deathly Hallows: Part 1; Iron Man 2; Prince of Persia: Sands of Time; The Green Zone; The Sorcerer's Apprentice; Hippie Hippie Shake; The Wolf Man; Kick-Ass; 2012; Sherlock Holmes and Scott Pilgrim vs. the World. Candidates will need to be comfortable supporting a deadline-driven production effort, have an excellent understanding of computer systems and good English speaking skills. *Please email your CV to: jobs(a)dneg.com, or post to*: Victoria Rodgers Double Negative Singapore Connexis South # 07-01 Fusionopolis 1 Fusionopolis Way Singapore 138632 Deadline for applications: 1st May 2009. *Please mark any application with 'Singapore Tech'.* www.dneg.com

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MTNL billing discrepancy
by Dr. Sharukh K. R. Pavri. 20 Apr '09

20 Apr '09

I am using MTNL's Triband combo offer which gives 600 mb download a month. This has been upped from 400 mb just last month. All this while, I was easily remaining within the 400 mb limit. Suddenly this month's bill shows a usage of 870 mb for march. On complaining to mtnl they said that that was the usage according to them. I usually run a check with knetworkmonitor and gkrellm and there would always be a small discrepancy between the usage shown on my machine and that shown by mtnl, where mtnl would always show slightly lower usage than on my machine. For last month gkrellm shows a usage of 560 mb as opposed to mtnl showing 870 mb. What can explan this large difference ? Btw, according to the chap I spoke to at mtnl, _it is definitely hackers_ sic !! Now that I'm keeping a watch, imagine my surprise when both my programs show download activity without a single browser window open and fetchmail having been killed !! How do I find out what is being downloaded ? or what program is the guilty one ? regards, Sharukh. -- Dr. Sharukh K R Pavri. Homoeopath, Linuxer. Why is it that people say they "slept like a baby" when babies wake up like every two hours ?

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MTNL billing discrepancy
by Dr. Sharukh K. R. Pavri. 20 Apr '09

20 Apr '09

> How do I find out what is being downloaded ? or what program is the > guilty one ? assuming you have one nic connected to the modem tcpdump -vv -i eth0 will dump all packets passing thru eth0 -- Rgds JTD -- Ok, here are some snippets when nothing is running -- no firefox, no fetchmail. --------------------------------------------------- set 0, flags [DF], proto UDP (17), length 69) opium.local.59991 > mygateway1.ar7.domain: [udp sum ok] 26904+ PTR? 57.0.9.149.in-addr.arpa. (41) 10:29:23.483585 IP (tos 0x0, ttl 64, id 64126, offset 0, flags [DF], proto UDP (17), length 69) opium.local.59991 > mygateway1.ar7.domain: [udp sum ok] 26904+ PTR? 57.0.9.149.in-addr.arpa. (41) 10:29:28.587617 IP (tos 0x0, ttl 255, id 0, offset 0, flags [DF], proto UDP (17), length 69) opium.local.mdns > 224.0.0.251.mdns: [udp sum ok] 0 PTR (QM)? 57.0.9.149.in-addr.arpa. (41) 10:29:29.591619 IP (tos 0x0, ttl 255, id 0, offset 0, flags [DF], proto UDP (17), length 69) opium.local.mdns > 224.0.0.251.mdns: [udp sum ok] 0 PTR (QM)? 57.0.9.149.in-addr.arpa. (41) 10:29:29.913817 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 69) mygateway1.ar7.domain > opium.local.59991: [udp sum ok] 26904 ServFail- q: PTR? 57.0.9.149.in-addr.arpa. 0/0/0 (41) 10:29:29.913850 IP (tos 0xc0, ttl 64, id 9222, offset 0, flags [none], proto ICMP (1), length 97) opium.local > mygateway1.ar7: ICMP opium.local udp port 59991 unreachable, length 77 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 69) mygateway1.ar7.domain > opium.local.59991: 26904 ServFail- q:[|domain] 10:29:31.595617 IP (tos 0x0, ttl 255, id 0, offset 0, flags [DF], proto UDP (17), length 69) opium.local.mdns > 224.0.0.251.mdns: [udp sum ok] 0 PTR (QM)? 57.0.9.149.in-addr.arpa. (41) 10:29:33.487932 IP (tos 0x0, ttl 64, id 2340, offset 0, flags [DF], proto UDP (17), length 69) opium.local.46962 > mygateway1.ar7.domain: [udp sum ok] 18516+ PTR? 64.5.25.85.in-addr.arpa. (41) 10:29:33.561818 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 186) mygateway1.ar7.domain > opium.local.46962: 18516 q: PTR? 64.5.25.85.in-addr.arpa. 1/2/2 64.5.25.85.in-addr.arpa. PTR[|domain] 10:29:33.562125 IP (tos 0x0, ttl 64, id 2358, offset 0, flags [DF], proto UDP (17), length 70) opium.local.54838 > mygateway1.ar7.domain: [udp sum ok] 65316+ PTR? 251.0.0.224.in-addr.arpa. (42) 10:29:38.487560 arp who-has mygateway1.ar7 tell opium.local 10:29:38.487871 arp reply mygateway1.ar7 is-at 00:0f:3d:dd:3b:5a (oui Unknown) 10:29:38.559582 IP (tos 0x0, ttl 64, id 2359, offset 0, flags [DF], proto UDP (17), length 70) opium.local.54838 > mygateway1.ar7.domain: [udp sum ok] 65316+ PTR? 251.0.0.224.in-addr.arpa. (42) 10:29:43.663627 IP (tos 0x0, ttl 255, id 0, offset 0, flags [DF], proto UDP (17), length 70) opium.local.mdns > 224.0.0.251.mdns: [udp sum ok] 0 PTR (QM)? 251.0.0.224.in-addr.arpa. (42) 10:29:44.667619 IP (tos 0x0, ttl 255, id 0, offset 0, flags [DF], proto UDP (17), length 70) opium.local.mdns > 224.0.0.251.mdns: [udp sum ok] 0 PTR (QM)? 251.0.0.224.in-addr.arpa. (42) 10:29:44.785969 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 70) mygateway1.ar7.domain > opium.local.54838: [udp sum ok] 65316 ServFail- q: PTR? 251.0.0.224.in-addr.arpa. 0/0/0 (42) 10:29:44.786004 IP (tos 0xc0, ttl 64, id 9223, offset 0, flags [none], proto ICMP (1), length 98) opium.local > mygateway1.ar7: ICMP opium.local udp port 54838 unreachable, length 78 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto UDP (17), length 70) mygateway1.ar7.domain > opium.local.54838: 65316 ServFail- q:[|domain] 10:29:46.671617 IP (tos 0x0, ttl 255, id 0, offset 0, flags [DF], proto UDP (17), length 70) opium.local.mdns > 224.0.0.251.mdns: [udp sum ok] 0 PTR (QM)? 251.0.0.224.in-addr.arpa. (42) 10:29:51.710645 IP (tos 0x0, ttl 39, id 8286, offset 0, flags [DF], proto TCP (6), length 638) 192.108.114.19.9001 > opium.local.56648: P 1:587(586) ack 586 win 204 <nop,nop,timestamp 515877565 650198> 10:29:51.710691 IP (tos 0x0, ttl 64, id 22720, offset 0, flags [DF], proto TCP (6), length 52) opium.local.56648 > 192.108.114.19.9001: ., cksum 0xd103 (correct), 586:586(0) ack 587 win 414 <nop,nop,timestamp 662255 515877565> 10:33:14.621666 IP (tos 0x0, ttl 47, id 14674, offset 0, flags [DF], proto TCP (6), length 638) 149.9.0.57.9001 > opium.local.34760: P 1:587(586) ack 586 win 4183 <nop,nop,timestamp 574952656 650198 ------------------------------------------------------ regards, Sharukh -- Dr. Sharukh K. R. Pavri. Homoeopath, Linuxer. Honi soit qui mal y pense. [Evil to him who evil thinks.] -- Motto of the Order of the Garter (est. Edward III) ----- End forwarded message ----- -- Dr. Sharukh K R Pavri. Homoeopath, Linuxer. Arithmetic is being able to count up to twenty without taking off your shoes. -- Mickey Mouse.

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Re: [ILUG-BOM] The BJP?s awkward embrace of Free Software
by Rahul Rai 19 Apr '09

19 Apr '09

> > > I dont trust Politicians. Previously Caste and Religion was used as > > Election manifesto, and its a pity now that the Opensource community is > > being dragged into politics.... Its not politicians, but we IT > professionals > > who have promoted Open source Applications... Open Source Platform is for > > all and not a dependent on political promotion... I agree with venkatesh.. the reason for posting this article from "THE HINDU" is that there will be discussion.. and in this election season, we must know whom we vote for.. Hw our objectives will be fulfilled and we must fight for our rights.. I agree that these politicians have promised us and nt delivered.. if v start to tell v ll nt care fr them than i think we are like them.. LAZY and IGNORANT... guys we must stand up and say "U(Politicians) cnt take us for a ride". I second with venky on this " > Politics and Political parties are not of any use to us. They are our representatives and we have to make them work for us, the people of India. We are lucky that we live in a democracy that has many checks and balances and it is our responsibility to be engaged in the democratic process. Venky "

5 6

Promoting Free Software in education in India
by jitendra 18 Apr '09

18 Apr '09

Many education institutes are seeking to use computers and internet. However, most reputed institutions are also constrained by limitations of low budgets and lack of IT savvy human resource. Usually suited-booted vendors do approach through "trustees', resulting in major headaches for the managers i.e Principals. There are several global efforts on "opensource". How 'free', remains to be seen. I am seriously discussing with some institutions some solutions and seek thru this email 1. list those who can provide the necessary customisation,localization,support etc. 2. suggestions for best solutions I feel this platform should not be talking about the business models and financial aspects. (That may be welcome offline). But I do feel that this platform should be concerned about promoting global standard software suites . Hence, assuming so, may I request opinions , availability of experience, case studies of deployments , voluntary or corporate support etc on 1. School Management 1. schooltool (schooltool.org) 2. rSmart, kuali (www.rsmart.com) 3. OKI (okiproject.org) 4. opensis (os4ed.org) 5. Any drupal based systems 2. Learning Management 1. moodle 2. sakai 3. Learning resources 1. see resources listed on www.mumbaiapplication.com jitendra

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Re: [ILUG-BOM] Facebook & Hotmail on Ubuntu
by Chirag Wazir 17 Apr '09

17 Apr '09

Hi, steve(a)lonetwin.net wrote: > This is worth a try besides all the others suggested: > http://ubuntuforums.org/archive/index.php/t-1110043.html I tried changing the MTU and also the MSS. It didn't help. The only thing left to try is using a packet sniffer. Chirag Wazir http://chirag.freeshell.org

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