Just installed vsftpd but it isn't showing in services

Question

I have installed vsftpd and configured as per several tutorials (just the very basic, standard setup) but when I run cat /etc/services there is nothing appearing for Port 21.

What steps do I need to follow in order to add this in?

Answer 1

The /etc/services file is just text. You can edit it using your favourite text editor. My CentOS system has the following for ftp

ftp-data        20/tcp
ftp-data        20/udp
# 21 is registered to ftp, but also used by fsp
ftp             21/tcp
ftp             21/udp          fsp fspd

Answer 2

/etc/services does not provide you a real-time list your server has running.

Use netstat -tlnp to see processes listening on some network ports.

Answer 3

You just need to open up /etc/services in a text editor and add it. There's nothing special that needs to be done. I'm incredibly surprised that it's not in there already; try a grep for ftp.