TCPDump Binary File......

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# 1  
Old 12-12-2001
file decrpytion

I have a file on a linux box with the extension .gz thats supposed to be a gzip file. when i use gzip -d filename
it gives me squares and triangles and you know garbarge. Its a 900 meg file. Is there someway to decode the file and where could I store a 900 meg file for free???? I am going to lose this linux account it is a school account. This file has some intruging information i will love to see so would you. direction anyone.
thanks in advance
# 2  
Old 12-12-2001
Binary files look just as you describe......

Lots of places on the net offer free storage... sounds like a 'google search' kinda question:
# 3  
Old 12-13-2001
Tried that

not binary tried that tried alot still no success i couldnt find any one who would let you store a 900 megabyte file basically a 1 gig file for free even if you payed i didnt see any 1 gig openings or am i missing something. a url would be super. anyone want to see the file to try and open it i will send it. it doesnt bite.
your the greatest dude.
# 4  
Old 12-13-2001
Have you tried using file?

First, make sure it's a good GZ file:

$ /usr/bin/file filename.gz
gzip compressed data, deflated, original filename, last modified: Tue Dec 11 05:03:02 2001, os: Unix

$ gzip -d filename.gz
$ /usr/bin/file filename

It should give you a fairly accurate hint of what the file it...
# 5  
Old 12-13-2001
thanks but

you know what, that really helped its a tcpdump capture file
little endian version 2.4 ethernet version not familiar with this can you help again. what now? this file is supposed to be the capturing of what was happening on a secure network kinda like a security camera. you probaly understand this so far you know what i mean.

you guys and gals are the greatest.
# 6  
Old 12-13-2001
Well, it you don't know how to view it / play it back, it probably won't be of much use to you anyways then...

If you're still interested, try man tcpdump. It says in the manpage how to Replay the session from file. By default, though, all tcpdump will display are the packet headers - not the entire packet.

Note: If you created / collected this file without the permission of the Systems / Network administrators, they could get more than a little mad at you for it...
# 7  
Old 12-13-2001
OK. You have a binary file of TCPDUMP info on a shared system which means you have a file with captured passwords and logins (and maybe credit card info) on a shared system you do not own.

You don't understand what you are doing, so you obviously are not a system admin. I suggest you delete the file to protect the security of those users immediately and report the capture file to the owners of the system.

Or, report it to the system admins and give them the file.....

What legitmate use of a large file of captured network traffic data could you have on a shared system? Inquiring minds want to know Smilie
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