Iptables v1.2.7a
Usage: iptables -[AD] chain rule-specificatio [options]
iptables -[RI] chain rulenum rule-specification [options]
iptables -D chain rulenum [options]
iptables -[LFZ] [chain] [options]
iptables -[NX] chain
iptables -E old-chain-name new-chain-name
iptables -P chain target [options]
iptables -h (print this help information)
Commands:
Either long or short options are allowed.
--append -A chain Append to chain
--delete -D chain Delete matching rule from chain
--delete -D chain rulenum Delete rule rulenum(1 = first) from chain
--insert -I chain [rulenum] Insert in chain as rulenum(default 1=first)
--replace -R chain rulenum Replace rule rulenum(1 = first) in chain
--list -L [chain] List the rules in a chain or all chains
--flush -F [chain] Delete all rules in chain or all chains
--zero -Z [chain] Zero counters in chain or all chains
--new -N chain Create a new user-defined chain
--delete-chain
-X [chain] Deletc a user-defined chain
--policy -P chain target Change policy on chain to target
--rename-chain
-E old-chain new-chain
Change chain name,(moving any references)
Options:
--proto -p [!] proto protocol:by number or name,eg.'tcp'
--source -s [!] address[/mask]
source specification
--destination -d [!] address[/mask]
destination specification
--in-interface -i [1] input name[+]
network interface name ([+] for wildcard)
--jump -j target targetd for rule (may load extension)
--match -m match extended match (may load extension)
--numeric -n numeric output of addresses and ports
--out-interface -o [!] output name[+]
network interface name ([+] for wildcard)
--table -t table table to manipulate (default:'filter')
--verbose -v verbose mode
--line-numbers print line numbers when listing
--exact -x expand numbers (display exact values)
[!] --fragment -f match seconde or further fragments only
--modprobe=<command> try to insert modeules using this command
--set-counters PKTS BYTES set the counter during insert/append
[!] --version -V print package version.