Block Skype by p2p filter module in Active Wall

Tutorials and tips how to use Active Wall.

Block Skype by p2p filter module in Active Wall

Postby admin » Sat Jun 26, 2010 6:30 pm

Another way to block skype, please read Blocking Skype with Active Wall Professional.

Skype will readily leak out of the network, using high-numbered ports—either TCP or UDP. As a last resort, it will use ports 80 and 443, which are most commonly used for Web traffic.

1. P2P Filter config
Skype using p2p technology. We should deny p2p connection in p2p filter.
DenyP2p.gif
Blocking p2p connection
DenyP2p.gif (5.68 KiB) Viewed 19627 times
admin
Site Admin
 
Posts: 386
Joined: Wed Dec 31, 1969 4:00 pm

Re: Block Skype by p2p filter module in Active Wall

Postby admin » Sat Jun 26, 2010 6:32 pm

2. Http Filter Config
The Skype client can pass through tcp 80 port.
So we should check [deny http proxy tunnel] option.
denyhttptunnel.gif
disable http proxy tunnel
denyhttptunnel.gif (6.37 KiB) Viewed 19631 times
admin
Site Admin
 
Posts: 386
Joined: Wed Dec 31, 1969 4:00 pm

Re: Block Skype by p2p filter module in Active Wall

Postby admin » Sat Jun 26, 2010 6:34 pm

3. Https Filter Config
The Skype client can pass through tcp 443 port by using TLS protocol.
So we should check [Disable TLS 1.0] option, or we can check [Deny https proxy tunnel] and [Deny server without certificate] options.
denytls.gif
disable TLS and https proxy tunnel
denytls.gif (6.62 KiB) Viewed 19626 times
admin
Site Admin
 
Posts: 386
Joined: Wed Dec 31, 1969 4:00 pm

Re: Block Skype by p2p filter module in Active Wall

Postby Sancho » Tue Oct 26, 2010 1:02 pm

I would like to block all p2p except Skype. Is that possible?
Sancho
 
Posts: 2
Joined: Tue Oct 26, 2010 12:53 pm

Re: Block Skype by p2p filter module in Active Wall

Postby admin » Tue Oct 26, 2010 11:21 pm

Please set policies in p2p filter and http filter, but don't configure https filter.
Skype will pass through tcp 443.
admin
Site Admin
 
Posts: 386
Joined: Wed Dec 31, 1969 4:00 pm

Re: Block Skype by p2p filter module in Active Wall

Postby Sancho » Wed Oct 27, 2010 4:25 am

Perfect. Thank you.
Sancho
 
Posts: 2
Joined: Tue Oct 26, 2010 12:53 pm


Return to Tutorials & Tips

Who is online

Users browsing this forum: No registered users and 2 guests

cron