On 2010年09月7日, in linux, tips, by netoearth
Posted by Nikesh Jauhari

AOL Instant Messenger (AIM)
Note: AOL are known to change their Server IPs. The list below cannot be confirmed.

acl aol dst
acl aol dst
http_access deny aol

Gizmo Project:
Gizmo Project include software to connect to a wide range of messaging protocols and VoIP services.

# Gizmo Project
acl gizmo dstdomain .gizmoproject.com
# Gizmo VoIP
acl gizmo dstdomain .talqer.com .gizmocall.com .fring.com
# Gizmo Chat
acl gizmo dstdomain .pidgin.im
http_access deny gizmo

ICQ (“I Seek You”)

acl icq dstdomain .icq.com
http_access deny icq

MSN Messenger and Windows Live Messenger

# MSN Messenger
acl msn urlpath_regex -i gateway.dll
acl msnd dstdomain messenger.msn.com gateway.messenger.hotmail.com
acl msn1 req_mime_type application/x-msn-messenger

http_access deny msnd
http_access deny msn
http_access deny msn1


# Skype
acl numeric_IPs dstdom_regex ^(([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)|(\[([0-9af]+)?:([0-9af:]+)?:([0-9af]+)?\])):443
acl Skype_UA browser ^skype^

http_access deny numeric_IPS
http_access deny Skype_UA

Note: Recent releases of Skype have been evading the above restriction by not sending their User-Agent headers and using domain names. The following can be used to catch those installs, but be aware it will likely also catch other agents.

acl validUserAgent browser \S+
http_access deny !validUserAgent


# Trillian
acl trillian dst
http_access deny trillian

Yahoo! Messenger

# Yahoo! Messenger
acl ym dstdomain .messenger.yahoo.com .psq.yahoo.com
acl ym dstdomain .us.il.yimg.com .msg.yahoo.com .pager.yahoo.com
acl ym dstdomain .rareedge.com .ytunnelpro.com .chat.yahoo.com
acl ym dstdomain .voice.yahoo.com

acl ymregex url_regex yupdater.yim ymsgr myspaceim

# Other protocols Yahoo!Messenger uses ??
acl ym dstdomain .skype.com .imvu.com

http_access deny ym
http_access deny ymregex

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