While downloading a tar ball from gnu's FTP server, I found that other than standard 21 TCP port connection, I also seeing an extra connection:
tcp 0 0 192.168.1.109:45056 18.104.22.168:21 ESTABLISHED 10956/wget tcp 0 0 192.168.1.109:56724 22.214.171.124:22259 ESTABLISHED 10956/wget
What that port is used for? I checked /etc/services, only 20 and 21 should be in use, am I wrong?
The command in use was