PF: strange port 21

[iwi]

Good day !

1. I set PF policy: "block all"
2. scan openbsd 4.4.
3. Scanning result - system offline


1. I set PF policy:

set skip on lo
scrub in all
block all
pass in on bge0 proto tcp from any to 192.168.0.2 port {22,80}

2. scan
3. Open ports:
21 - ftp
22 -ssh
80 - http


ps aux | grep ftp ---> no

21 ftp --- What it is ???