Reject-with target, REJECT target
Remove match, Recent match
Reserved, TCP headers
Restore target, CONNSECMARK target
Restore-mark target, CONNMARK target
Restoring rulesets, Saving and restoring large rule-sets
RETURN target, RETURN target
RFC, IP headers
1122, Tcpmss match
1349, IP headers
1812, CLUSTERIP target
2401, AH/ESP match
2474, IP headers, IP headers, DSCP target
2638, Dscp match
2960, SCTP Characteristics
3168, IP headers, IP headers, Ecn match
3260, IP headers, IP headers
3268, TCP headers, TCP headers
3286, SCTP Characteristics
768, UDP characteristics
791, IP headers, IP headers
792, ICMP headers, The ICMP chain
793, Terms used in this document, TCP headers, TCP connections, Tcpmss match, REJECT target
Routing, TCP/IP destination driven routing, MARK target
ANYCAST, Addrtype match
BLACKHOLE, Addrtype match
BROADCAST, Addrtype match
LOCAL, Addrtype match
MULTICAST, Addrtype match
NAT, Addrtype match
PROHIBIT, Addrtype match
THROW, Addrtype match
UNICAST, Addrtype match
UNREACHABLE, Addrtype match
UNSPEC, Addrtype match
XRESOLVE, Addrtype match
Routing realm, Realm match
Rsource match, Recent match
RST, TCP headers
Rttl match, Recent match
Rule, IP filtering terms and expressions
Rules, How a rule is built
Basics, Basics of the iptables command
Ruleset, IP filtering terms and expressions
S
SACK, IP headers
SAME target, SAME target
--nodst, SAME target
--to, SAME target
Save target, CONNSECMARK target
Save-mark target, CONNMARK target
Saving rulesets, Saving and restoring large rule-sets