Anyone please recommend me about iptables loopback
When i enable loopback i just use 2 line below and everything work fine
iptables -A INPUT -i lo -j ACCEPT
iptables -A OUTPUT -o lo -j ACCEPT
But i see many example around then have also included this line below to
enable loopback
iptables -A FORWARD -o lo - j ACCEPT ?
i try generate packet locally like "telnet localhost 25" and debug with
"iptables -L -nv"
but dont see any packet match this rule(FORWARD) only INPUT and OUTPUT
matched
So can i omit this line ?
or what kind of packet that match this rule ?
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