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Re: Block skype

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ufdbGuard can block Skype.
ufdbGuard is a free URL redirector which works with Squid.

Blocking Skype is based on SSL connection verification
and since Skype using port 443 but has no SSL handshake,
the connection is blocked when the option
enforce-https-official-certificate is set ON.

Note that Squid already makes port 80 unusable for Skype and
your firewall must block direct connections to other
Skype nodes.

-Marcus


Amos Jeffries wrote:
Hi guys,

Is it possible block skype using acl header in squid?

I don't like put in my squid.conf the configuration bellow because
will block some sites with IP configuration.

acl numeric_IPs urlpath_regex ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+

PATH portion regex will never match the HOST part.

acl connect method CONNECT
http_access deny connect numeric_IPs all

Only the raw-IP detection control has any reliability.
  http://wiki.squid-cache.org/ConfigExamples/Chat/Skype

The websites which use raw IPs as their domain name are also most often
seen in spam and domain hijacking attacks. Its not a good idea to let them
through. Lobby the site people to setup their DNS properly.

Amos




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