Other Linux how to and tips

How to attach files to your cms, certain commands, logs, modules setup, and SQL information.

Attachments :

Check if ImageMagick is running.

Commands :

Sudo: curl: command not found.
Stop bash script if error.

Logs :

Cannot adopt OID in UCD-SNMP-MIB.
Know if logwatch is installed.

Modules :

Install unzip on Debian.
Install isolinux.
Reject spam from unknown IP with Postfix.
No LSB modules are available.

SQL :

Where are the databases.
Rename quicly a MySQL database.