LinuxQuestions.org
Support LQ: Use code LQ3 and save $3 on Domain Registration
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Security
User Name
Password
Linux - Security This forum is for all security related questions.
Questions, tips, system compromises, firewalls, etc. are all included here.

Notices

Reply
 
LinkBack Search this Thread
Old 07-24-2010, 03:12 AM   #1
frank4360
Member
 
Registered: Nov 2007
Location: South of France
Distribution: Xubuntu 12.10, Ubuntu 13.04, LinuxLite, AntiX 13, Fuduntu
Posts: 56

Rep: Reputation: 16
Can I check data being uploaded in a Firefox connection to a web site?


I use Firefox 3.5.9 and Ubuntu 9.10.

There is a suspicious amount of data (more than a megabyte) being uploaded from my computer whenever I log onto a commercial web site on which I advertise rental properties.

Is there any way I can see the data being uploaded - I am pretty familiar with the Unix/Linux system and commands.

TIA
 
Old 07-24-2010, 04:07 AM   #2
unSpawn
Moderator
 
Registered: May 2001
Posts: 26,534
Blog Entries: 51

Rep: Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603
If you want a quick look at requests and responses try Firebug or TamperData, elif you also need to log (and maybe modify?) them try Paros or Burp else tcpdump or wireshark?
 
1 members found this post helpful.
Old 07-24-2010, 04:21 AM   #3
GlennsPref
Senior Member
 
Registered: Apr 2004
Location: Brisbane, Australia
Distribution: Mageia Studio-13.37 Kubuntu.
Posts: 3,325
Blog Entries: 33

Rep: Reputation: 199Reputation: 199
Hi, despite what unSpawn said,

you could keep track with Gkrellm, and it's plugins.

There is probably a more expedient method,

But Gkrellm tells me everything I need.

Date/Time Received and sent in Kilobytes.

Hope this helps. Glenn

Last edited by GlennsPref; 07-24-2010 at 04:23 AM. Reason: spelling
 
1 members found this post helpful.
Old 07-24-2010, 04:40 AM   #4
frank4360
Member
 
Registered: Nov 2007
Location: South of France
Distribution: Xubuntu 12.10, Ubuntu 13.04, LinuxLite, AntiX 13, Fuduntu
Posts: 56

Original Poster
Rep: Reputation: 16
Thanks both - I will look at tcpdump first.
 
Old 07-28-2010, 10:37 AM   #5
frank4360
Member
 
Registered: Nov 2007
Location: South of France
Distribution: Xubuntu 12.10, Ubuntu 13.04, LinuxLite, AntiX 13, Fuduntu
Posts: 56

Original Poster
Rep: Reputation: 16
Hello again

I tried tcpdump - but no good!

I didn't mention that I am on a dial-up modem connection, so there is no network interface for tcpdump to check!

Does anyone know a way to "snoop" on data sent from Firefox with such a connection. There is still a lot of data going out that I don't understand. If I was using Windows rather than Linux I would suspect a virus/worm/etc.
 
Old 07-28-2010, 01:51 PM   #6
unixfool
Member
 
Registered: May 2005
Location: Northern VA
Distribution: Slackware, Ubuntu, FreeBSD, OpenBSD, OS X
Posts: 781
Blog Entries: 8

Rep: Reputation: 157Reputation: 157
Dial-up connections usually use ppp0, right? Please confirm what interface your dial-up connection is using (run 'ifconfig -a' and paste here if you don't know).

You can point tcpdump to ppp0 (same as if you had an ethernet connection...same method, different interface): tcpdump -i ppp0
 
Old 07-29-2010, 02:18 AM   #7
unSpawn
Moderator
 
Registered: May 2001
Posts: 26,534
Blog Entries: 51

Rep: Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603Reputation: 2603
...and in addition to what's been offered already please be verbosely descriptive when replying.
Quote:
Originally Posted by frank4360 View Post
I tried tcpdump - but no good
"No good" is not a statement that holds any clues as to your usage in terms of command line, BPF filtering et cetera.


Quote:
Originally Posted by frank4360 View Post
Does anyone know a way to "snoop" on data sent from Firefox
In the first reply I offered you six possibilities of which you've only tried one.
 
Old 07-29-2010, 05:32 AM   #8
frank4360
Member
 
Registered: Nov 2007
Location: South of France
Distribution: Xubuntu 12.10, Ubuntu 13.04, LinuxLite, AntiX 13, Fuduntu
Posts: 56

Original Poster
Rep: Reputation: 16
Thanks unixfool!
 
  


Reply

Tags
interface, ppp0, tcpdump


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Help Diagnosing Web site Problem with Firefox Toods Slackware 7 09-08-2009 02:15 PM
LXer: Create an AJAX Web site using dhtmlxGrid to present data LXer Syndicated Linux News 0 01-28-2008 01:50 PM
Firefox shutdown when I open some web site binary Debian 3 12-11-2006 08:02 PM
I made a program that can pull data off a large web site 20 times a day halfpower General 12 11-18-2006 08:38 PM
Please using Firefox go to this web site explorer1979 General 2 12-26-2004 03:50 PM


All times are GMT -5. The time now is 01:07 AM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration