man iptables
[!] --syn
Only match TCP packets with the SYN bit set and the
ACK and FIN bits cleared. Such packets are used to
request TCP connection initiation; for example,
blocking such packets coming in an interface will
prevent incoming TCP connections, but outgoing TCP
connections will be unaffected. It is equivalent to
--tcp-flags SYN,RST,ACK SYN. If the "!" flag precedes
the "--syn", the sense of the option is inverted.
sorry pentru layout.
> Cum pot sa pun o regula prin care sa spun ca numai calculatoarele
> de pe o interfata a unui ruter (cu adresa A.B.C.0) pot initia o
> conexiune HTTP spre net( la ele sa nu se ajunga cu o conexiune
> neinitiata de ele)? Multumesc
> Gabriel
>
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