User data, SCTP DATA chunk
Verification tag, SCTP Common and generic headers
SCTP match, SCTP matches
--chunk-types, SCTP matches
--destination-port, SCTP matches
--source-port, SCTP matches
SECMARK target, Mangle table, SECMARK target
--selctx, SECMARK target
Seconds match, Recent match
Segment, Terms used in this document
Selctx target, SECMARK target
SELinux, CONNSECMARK target, SECMARK target
Sequence Number, TCP headers, ICMP Echo Request/Reply
Session layer, TCP/IP Layers
Set match, Recent match
Set-class target, CLASSIFY target
Set-dscp target, DSCP target
Set-dscp-class target, DSCP target
Set-mark target, CONNMARK target, MARK target
Set-mss target, TCPMSS target
Set-tos target, TOS target
Sid-owner match, Owner match
Sid-owner.txt, Sid-owner.txt
SLIP, Displacement of rules to different chains
SNAT, Terms used in this document, What is an IP filter, What NAT is used for and basic terms and expressions
SNAT target, Nat table, SNAT target, Displacement of rules to different chains, Starting SNAT and the POSTROUTING chain
--to-source, SNAT target
Snort, How to plan an IP filter
Source address, IP headers, ICMP headers
Source match, Generic matches
Source port, TCP headers, UDP headers
Source Quench, Source Quench
Source-port match, TCP matches, UDP matches, SCTP matches, Multiport match
Speed considerations, Speed considerations
Spoofing, SYN/ACK and NEW packets
Squid, What is an IP filter, How to plan an IP filter, REDIRECT target
Src-range match, IP range match
Src-type match, Addrtype match
SSH, Bash debugging tips, Displacement of rules to different chains
Standardized, How to plan an IP filter
State
Conntrack match, Conntrack match
see also Conntrack match
State machine, The state machine
Default connections, Default connections
State match, Terms used in this document, IP filtering terms and expressions, The state machine, State match