Setting ESETS for scanning of IMAP communication

The IMAP communication scanning is performed using the esets_imap daemon. In the [imap] section of the ESETS configuration file, set these parameters:

agent_enabled = yes
listen_addr = ""
listen_port = 8143

where ‘listen_addr’ is the address of the local network interface named if0. Then restart the ESETS daemon. The next step is to redirect all IMAP requests to esets_imap. If IP-filtering is being performed by the ipchains administration tool an appropriate rule would be:

ipchains -A INPUT -p tcp -i if0 --dport 143 -j REDIRECT 8143

If IP-filtering is being performed by the iptables administration tool, the rule is:

iptables -t nat -A PREROUTING -p tcp -i if0 --dport 143 -j REDIRECT --to-ports 8143

On FreeBSD, the rule is as follows:

ipfw add fwd,8143 tcp from any to any 143 via if0 in