23.09.2024 15:22, Brian Conway пишет:
On Mon, Sep 23, 2024, at 6:19 AM, kasak wrote:
Hello, misc!

Could you please share your wisdom about this problem.

On my openbsd firewall, sometimes network become slow and some daemons
stop working.

/var/log/messages have this messages when slowdown is in place:

Sep 23 13:49:34 gater ntpd[30891]: sendto: Permission denied
Sep 23 13:56:22 gater isakmpd[64631]: sendmsg (14, 0x784ce63ce408, 0):
Permission denied

also nginx have this messages:

   connect() to 172.16.0.80:443 failed (13: Permission denied) while
connecting to upstream

also i cannot ping nor nslookup anything also because "permission denied"

I found workaround by flushing pf states. After pfctl -F states
everything start to work again.

But maybe i should tune something i did not know about?

How can I diagnose this failures?
You may have a full state table. Try:

pfctl -si
pfctl -ss
Do I understand correctly that "current entries" (pfctl -si) is the number of states?

Alternatively `pfctl -sa` includes all. If you have run out of available state 
tracking, I would spot check what is using up all the state entries and whether 
it is expected prior to increasing the limit.

Brian Conway
Owner
RCE Software, LLC


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