Where can I check whether the FTP service is working or it is down?

9818

FTP times out

26444

FTP gives an error about incorrect login

4454

FTP uploading/downloading is slow

5554

FTP service terminates / disconnects the connection

1908

Internal Server Error appears after FTP upload

3581

FTP error: 'Impossible to connect to the server'

2190

How to check whether FTP port 21 is blocked?

115780

My FTP is uploading/downloading really slow.

1780

My FTP session was terminated (disconnected)

3050