thedark
Second Lieutenant
Joined: 30 Jul 2005
Posts: 1074
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 Posted: Sun Jul 31, 2005 10:17 am Post subject: Allow IMAP server/protocol |
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IMAP allows to retrieve mail. It uses the TCP port 143. Following two iptable rules allows incoming IMAP request on port 143 for server IP address 202.54.1.20 (open port 143):
iptables -A INPUT -p tcp -s 0/0 --sport 1024:65535 -d 202.54.1.20 --dport 143 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -p tcp -s 202.54.1.20 --sport 143 -d 0/0 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
In order to block port 143 simply use target REJECT instead of ACCEPT in above rules. |
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