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When doing
tcpdump -n -e -ttt -i pflog0
I frequently see packets blocked that looks like this
458660 rule 0/0(match): block in on em0: xxx.yyy.zzz.qqq.993 >
qqq.zzz.yyy.xxx.59930: tcp 8 [bad hdr length 12 - too short, < 20]
It's the IMAP server I'm using that tries to talk back. Is this
someth
I'm setting up a pf firewall and came across this macro
SYN_ONLY="S/FSRA"
Have tried to find out what it does but have not been successful.
Will someone explain Please?
Thanks
/Leslie
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Leslie Jensen wrote:
I'm setting up a pf firewall and came across this macro
SYN_ONLY="S/FSRA"
This means it will only match packets which have only set the SYN flag
of FIN, SYN, RST and ACK.
This is the case when starting a new (tcp) connection.
-- Jille
Have tried to find out what it does
On Mon, Sep 22, 2008 at 01:53:02PM +0200, Leslie Jensen wrote:
> When doing
> tcpdump -n -e -ttt -i pflog0
>
> I frequently see packets blocked that looks like this
>
> 458660 rule 0/0(match): block in on em0: xxx.yyy.zzz.qqq.993 >
> qqq.zzz.yyy.xxx.59930: tcp 8 [bad hdr length 12 - too short, < 2
