Re: [gentoo-user] Network Monitoring

2007-10-17 Thread Hans-Werner Hilse
Hi,

On Wed, 17 Oct 2007 10:38:10 -0400 James Colby
[EMAIL PROTECTED] wrote:

 I am looking for some advice.  We have a user on our network that we
 belive may be making inappropriate forum posts, violating our TOS for
 internet usage.  I am looking for some recommendations of software
 that I can install on Gentoo server to help us monitor these posts.
 Can anyone recommend a proxy package that could help me to monitor
 this.  I would prefer to do this transparently but we do have access
 to configure a proxies on the users browser.  Is this something that
 Squid can do?

You won't get HTTPS traffic without spoofing certificates, which might
not get trough unnoticed. But HTTP is just plain text, so probably you
can just run

$ tcpdump -w - -i ethN -s 1600 port 80 and src 192.168.your.enemy | tee 
fulldump | strings

for one or two days and be done with it. Note that the traffic you're
interested in the most is outgoing traffic (HTTP POST) if you're
looking for offensive communication originating from that user.

Of course, all of this is probably illegal if that user hasn't agreed
on monitoring measures (which means you'll probably not be able to use
it as a proof before court) -- and even that might be prevented by
local law.

Also have a look at the dsniff package, especially at urlsnarf. But
this would just give you the URLs...

-hwh
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Re: [gentoo-user] Network Monitoring

2007-10-17 Thread James Colby
On Wed, Oct 17, 2007 at 04:57:54PM +0200, Uwe Thiem wrote:
 
 I have no recommendation but would like to remind you of one thing: What you 
 are trying to achieve is a serious breach of privacy. 
 
All users of this network are made aware of the Acceptable use policy of
this network, and understand that we have reserved the right to monitor
this network to ensure compliance with that policy.  Until now we have
not felt the need for monitoring, but certain violations have been
brought to out attention, and we feel as though we need to do something
about it.

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Re: [gentoo-user] Network Monitoring

2007-10-17 Thread Mick
On Wednesday 17 October 2007, Tapio Raevaara wrote:

 Network monitoring can be interpreted in many different ways, are you
 sure your users realize what that really means?

 Unless you've already done so, it might be a good idea to send a message
 reminding of the policy to all users, mention that a single user has been
 violating that policy, and that if this will not stop immediately, you'll
 be forced to start monitoring the traffic.

I'd go further than that, I would be more specific regarding the way in which 
that user violated the policy:  e.g. used company IT equipment to 
access 'such  such' type of website in company time.  In my company, 'social 
networking websites' like myface, youtube and what not, are out of bounds. 
Ditto for ebay - employees were spending far too much time browsing deals on 
ebay.

Also, what are the implications of violating the policy - speak to your HR 
department first and reiterate these in the same message; e.g. porn may be 
instant dismissal, but ebay may just result in a disciplinary hearing.  Then 
check that (s)he (and others) don't just use anonymouse to get to their 
preferred websites . . .
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Mick


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Re: [gentoo-user] Network Monitoring (graphical web app)

2005-08-04 Thread Jose Gonzalez Gomez
Haven't tried it, but it seems to be worth a look, so I would add 

http://www.zabbix.com/

2005/8/3, Michael Crute [EMAIL PROTECTED]:
 I use Nagios and Cacti with much success.
  
  http://www.nagios.org/
  http://www.cacti.net/
  
  -Mike
 
 
 On 8/3/05, Chris Frederick [EMAIL PROTECTED] wrote:
  Hi all,
  
  I've been looking for a monitoring app that I can run on my
  server/gateway.  The more graphical the better, I really like the looks
  of the graphs from ipac and grapher.  But I'd like to get more details 
  than just total interface statistics.  I'd like to be able to see a
  graph for the total, but also a few extra graphs for watching specific
  ports (21, 22, 25, 80, 443, etc...).  Being able to monitor procs,
  specific procs, and memory and stuff would be nice, but I can get that 
  from other apps if needed.
  
  Any suggestions/recommendations?
  
  Thanks all,
  
  Chris Frederick
  
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 -- 
 
 Michael E. Crute
 Software Developer
 SoftGroup Development Corporation
 
 In a world without walls and fences, who needs windows and gates?

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Re: [gentoo-user] Network Monitoring (graphical web app)

2005-08-03 Thread A. Khattri
On Wed, 3 Aug 2005, Michael Crute wrote:

 I use Nagios and Cacti with much success.

 http://www.nagios.org/
 http://www.cacti.net/
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Re: [gentoo-user] Network Monitoring (graphical web app)

2005-08-03 Thread A. Khattri
On Wed, 3 Aug 2005, Chris Frederick wrote:

 I've been looking for a monitoring app that I can run on my
 server/gateway.  The more graphical the better, I really like the looks
 of the graphs from ipac and grapher.  But I'd like to get more details
 than just total interface statistics.  I'd like to be able to see a
 graph for the total, but also a few extra graphs for watching specific
 ports (21, 22, 25, 80, 443, etc...).  Being able to monitor procs,
 specific procs, and memory and stuff would be nice, but I can get that
 from other apps if needed.

 Any suggestions/recommendations?

ntop ?


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