>ЧО ББЛИН НЕ КО НЕ ЗНАЕТ ТАКОЙ ПРОСТОЙ ВОПРОС ????
1. Mozno bilo bi bit i povezlivei.
2. http://www.openbsd.org/cgi-bin/man.cgi?query=pf.conf&apropos=0&sektion=0&manpath=OpenBSD+Current&arch=i386&format=html
...
flags _a_/_b_ | /_b_
This rule only applies to TCP packets that have the flags _a_ set
out of set _b_. Flags not specified in _b_ are ignored. The flags
are: (F)IN, (S)YN, (R)ST, (P)USH, (A)CK, (U)RG, (E)CE, and C(W)R.
flags S/S Flag SYN is set. The other flags are ignored.
flags S/SA Out of SYN and ACK, exactly SYN may be set. SYN,
SYN+PSH and SYN+RST match, but SYN+ACK, ACK and ACK+RST
do not. This is more restrictive than the previous ex-
ample.
flags /SFRA
If the first set is not specified, it defaults to none.
All of SYN, FIN, RST and ACK must be unset.
...
I 4to imenno zdes ne ponatno ?