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Old 04-09-2002, 01:17 AM   #1
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Question TCP-Flags??


I was reading some IPTables tutorial the other day, when I came across something like this that confused me:

iptables -p --tcp-flags SYN,ACK,FIN

My question is do what the following do:

SYN
ACK
FIN
RST
URG
PSH

 
Old 04-09-2002, 02:41 AM   #2
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The meaning of the flags or "control bits" is here, how they are used in everyone's favourite example, the "three-way handshake" here, and if you want an RFC description look here in Pt 3, 3.4 and 3.9 .

HTH somehow.
 
  


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