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Old 11-07-06, 01:24 PM   #1
CaptNKILL
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Default Monitoring network activity?

Is there a program that can log and monitor all incoming and outgoing network activity on a system? I don't really know anything about firewalls or the software side of networking.

I don't particularly need to block anything, I've just got a... problem... that isnt computer related and I want to make 100% sure there isn't anything currently going in or out of my PC that I'm not allowing.

I have a basic Linksys 10\100 router with a firewall, but I need to be sure about this.

Any software that can give me detailed info about this kind of activity (and preferably keep a log file of it) will do, I just don't know where to start to look for one.

A software firewall is overkill (in fact I don't want one) but if thats the only way to do this, I guess that will work too.
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Old 11-07-06, 01:25 PM   #2
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Default Re: Monitoring network activity?

WireShark
Ethereal
tcpDump
CommView

To name a few.
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Old 11-07-06, 01:32 PM   #3
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Default Re: Monitoring network activity?

Thanks
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Old 11-07-06, 01:44 PM   #4
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Default Re: Monitoring network activity?

Wireshark looks good but its totally over my head... I have no idea what to make of all of this.



I have to go to work later (night shift) so I need to get some sleep now, but could you help me out with this a bit later or tomorrow evilghost?

I don't know if its possible, but I'd like to be able to identify all of whats going in and out of my computer.
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Old 11-07-06, 05:04 PM   #5
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Default Re: Monitoring network activity?

If Wireshark is too complicated for you, then a personal firewall like ZoneAlarm will be much more helpful in determining what goes in and out of your PC.

Once you've determined all traffic is legit, you can uninstall it.

Quote:
Originally Posted by CaptNKILL
I don't know if its possible, but I'd like to be able to identify all of whats going in and out of my computer.
Totally possible with the tools evilghost mentioned. Packet sniffers can show everything, from application and protocol information, down to bits and bytes going across the line. However it does take a great deal of knowledge to know and understand what you're looking at.
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Old 11-07-06, 06:51 PM   #6
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Default Re: Monitoring network activity?

I'm willing to help. You may want to try doing something more simple. Try a:

netstat -a|find /I "EST" from a CMD prompt.
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Old 11-07-06, 07:42 PM   #7
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Default Re: Monitoring network activity?

netstat -a displays all active ports, i believe in windows anything further following that, unless another flag is set, won't do anything and will warn you about proper usage
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Old 11-07-06, 08:25 PM   #8
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Default Re: Monitoring network activity?

Quote:
Originally Posted by Imbroglio
netstat -a displays all active ports, i believe in windows anything further following that, unless another flag is set, won't do anything and will warn you about proper usage
There are a few flags you can use, issue netstat /? for the complete list of arguments. For example you can use -n to not resolve IP addresses to host names.

Capn, you need to look at the TIME_WAIT and ESTABLISHED connections if you're trying to track down connections. LISTEN isn't as important since those are going to usually be associated with ingress not egress traffic.

I'd recommend using something a little more friendly like Tamos CommView.
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Old 11-09-06, 11:09 AM   #9
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Default Re: Monitoring network activity?

Quote:
Originally Posted by evilghost
There are a few flags you can use, issue netstat /? for the complete list of arguments. For example you can use -n to not resolve IP addresses to host names.

Capn, you need to look at the TIME_WAIT and ESTABLISHED connections if you're trying to track down connections. LISTEN isn't as important since those are going to usually be associated with ingress not egress traffic.

I'd recommend using something a little more friendly like Tamos CommView.
Hey thanks for the help.

CommView seems to work great and its much easier to use.

It doesnt look like I have anything going on that shouldnt be. When I close my browser windows and torrent program I don't get any activity at all except for a communication from my ISP once in a while.

I was getting a few random things sneaking through some open ports (in the 49000-49100 range) that I use for torrents, but I changed the port numbers and I no longer get those. They were coming from china, california, florida... all over the place, so their most likely just some random ip spamming things.

I think I'm clean.

Thanks again.
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Old 11-09-06, 11:36 AM   #10
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Default Re: Monitoring network activity?

Glad to help dude.
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