Sunday, August 04, 2024

Re: About pf Rule ( pf.conf

On Sun Aug 4, 2024 at 4:36 PM BST, WATANABE Takeo wrote:
> I am having trouble because all packets are blocked.
> Please see below for a description of the problem.
> I would appreciate it if you could point out any problems.

The config looks ok so far; I don't see any problems.

Can you run 'pfctl -s rules' and send the command output?
You can also run 'tcpdump' on the interface. Can you see in-coming or
out-coming packages for your specified ports?

> pf.conf
> ----
> tcp_services="{ http, https, domain, smtp, smtps, msa, imaps, 1522 }"
> udp_services="{ domain, ntp }"
>
> set block-policy drop
> set loginterface vio0
>
> # don't filter on loopback interface
> set skip on lo0
>
> # set up a default deny policy
> block all
>
> # Blocking Spoofed Packets
> antispoof quick for vio0
>
> # Allow packets
> pass log quick on vio0 proto tcp to any port $tcp_services keep state
> pass log quick on vio0 proto udp to any port $udp_services keep state
>
> # Allow ICMP Packets
> pass quick on vio0 proto icmp to any keep state
>
> ---

Regards,
Souji

--
Souji Thenria
Website: www.souji-thenria.net

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