iptables(8) (cont. again)

• -P, --policy

• Set the policy for the chain to the given target.

• See the section TARGETS for the legal targets.

• Only non-user-defined chains can have policies, and

• neither built-in nor user-defined chains can be

• policy targets.

• -E, --rename-chain

• Rename the user specified chain to the user sup-

• plied name. This is cosmetic, and has no effect on

• the structure of the table.

• -h Help. Give a (currently very brief) description of

• the command syntax.

• Other useful switches:

• -p / --protocol -f / --fragment --line-numbers --tcp-option --log-level

• -s / --source -c / --set-counters --modprobe=command --icmp-type --log-prefix

• -d / --destination -v / --verbose --source-port --mac-source --log-tcp-sequence

• -j / --jump -n / --numeric --destination-port --limit --log-tcp-options

• -i / --in-interface -x / --exact --tcp-flags --limit-burst --log-ip-options

• -o / --out-interface --syn --reject-with

• See iptables(8) for more...

Notes: