Archive for June, 2012


1. June 2012 Meeting Details
2. ILUG-Cochin Meeting on 24th June 2012

June 2012 Meeting Details

June 25th, 2012

The meeting of the “Indian Libre User Group” was successfully held on June 24th 2012

Date: 24-06-2012

Time: 2:00pm – 5.30pm
Venue: Internet Club, IInd Floor,
AMI Trust Building,Broadway Enclave,
Broadway, Ernakulam

2.30pm – 2.45pm

Customary Self Introduction.
People shared their experience with Free Software

2.45pm – 4.15pm – Wireshark by Jay Jacob

Wireshark is a free and open-source packet analyzer. It is used for network troubleshooting, analysis, software and communications protocol development, and education. Originally named Ethereal, in May 2006 the project was renamed Wireshark due to trademark issues. Wireshark is cross-platform, using the GTK+ widget toolkit to implement its user interface, and using pcap to capture packets; it runs on various Unix-like operating systems including Linux, Mac OS X, BSD, and Solaris, and on Microsoft Windows. There is also a terminal-based (non-GUI) version called TShark. Wireshark, and the other programs distributed with it such as TShark, are free software, released under the terms of the GNU General Public License.


Wireshark is software that “understands” the structure of different networking protocols. Thus, it is able to display the encapsulation and the fields along with their meanings of different packets specified by different networking protocols. Wireshark uses pcap to capture packets, so it can only capture the packets on the types of networks that pcap supports.

1. Data can be captured “from the wire” from a live network connection or read from a file that recorded already-captured packets.

2. Live data can be read from a number of types of network, including Ethernet, IEEE 802.11, PPP, and loopback.

3. Captured network data can be browsed via a GUI, or via the terminal (command line) version of the utility, TShark.

4. Captured files can be programmatically edited or converted via command-line switches to the “editcap” program.

5. Data display can be refined using a display filter.

6. Plug-ins can be created for dissecting new protocols.

7. VoIP calls in the captured traffic can be detected. If encoded in a compatible encoding, the media flow can even be played.

8. Raw USB traffic can be captured.

Wireshark’s native network trace file format is the libpcap format supported by libpcap and WinPcap, so it can exchange files of captured network traces with other applications using the same format, including tcpdump and CA NetMaster. It can also read captures from other network analyzers, such as snoop, Network General’s Sniffer, and Microsoft Network Monitor.

4.15pm – 4.30pm

Tea break

Concluding Session

People were requested to handle small technical discussions for the next meeting.

Thanks to all the attendees for coming and they are requested to put their feedback on the mailing list so that we can improve future meetings

The next user meet is on 22nd July 2012


ILUG-Cochin Meeting on 24th June 2012

June 21st, 2012

Warm Greetings To The Free Software Community

Indian Libre User Group is spreading Free Software awareness in society through its regular monthly meetings ( 4th Sunday of every month ), conducted since 1997. ILUG Cochin ( is holding its regular meeting for this month on Sunday, 24th June 2012.

The Details are as follows

Date : 24/06/2012, 24th June, Sunday

Time : 2pm – 5:30pm

Venue :
Internet Club
IInd Floor, AMI Trust Bldg,
Broadway Enclave, Broadway,
Location: Behind Allappat Super Shoppe,On top of SBT Treasury wing

Meeting Schedule
1. Introduction to Free Software and GNU Movement
2. Agenda : Wireshark
3. Additional Discussions : Spoken Tutorial
4. Q&A Session

A Map showing the venue is available at :

Directions to reach venue.

Get answers to your questions about the meeting at:

For further information contact :
Tel:+91 9447111771
Tel:+91 9995717112
Tel:+91 9747173432
Tel:+91 9496449969
Tel:+91 484 2374862 ( Venue )
Tel:+91 484 4025077 ( Venue )
contact at


1. Introduction to Free Software

We start of with our regular discussion on the concepts and philosophy of the Free Software Movement and related topics.

2. Agenda : Wireshark

The importance Network Analysers on all network interaction, the benefits of using Network Analysers will be discussed. We will also discuss how this will enhance the System/Network Administrators work

3. Additional Discussions : Spoken Tutorial

Spoken Tutorial : attendees will discuss and/or present topics of interest.They will share their knowledge by handling small sessions to make up the additional Session part of the Meeting.

4. Q&A Session

This would be used to answer doubts that users have concerning Free Software. We look forward to your participation for this exciting meeting. Hope to meet you all on Sunday.

Thank You

Indian Libre User Group, Cochin