How to disable a utility

What’s the typical command line to disable a utility temporarily? I installed sshguard (months ago) which now seems to be interfering with an ftp process. Since I use ftp so rarely, it seems easier to disable sshguard, do my uploads, and then re-enable sshguard than to figure out the commands for whitelisting the ftp server. Anyone familiar with this?

The commands for sshguard:

sudo service sshguard stop

sudo service sshguard start

sudo service sshguard status

sudo service sshguard restart