thedark
Second Lieutenant
Joined: 30 Jul 2005
Posts: 1074
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 Posted: Sun Jul 31, 2005 10:05 am Post subject: How to allow secure mail SMTPS |
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Secure SMTPS uses the tcp port 465 by default. Following iptable rules will allow server SMTPS incoming client request (open port 465) for server ip address 202.54.1.20:
iptables -A INPUT -p tcp -s 0/0 --sport 1024:65535 -d 202.54.1.20 --dport 465 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A OUTPUT -p tcp -s 202.54.1.20 --sport 465 -d 0/0 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT
Following rules allows SMTPS outgoing client request from firewall host 202.54.1.21 (open port 465):
iptables -A OUTPUT -p tcp -s 202.54.1.21 --sport 1024:65535 -d 0/0 --dport 465 -m state --state NEW,ESTABLISHED -j ACCEPT
iptables -A INPUT -p tcp -s 0/0 --sport 465 -d 202.54.1.21 --dport 1024:65535 -m state --state ESTABLISHED -j ACCEPT |
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