There are different kind of memory measurement metrics in Linux. These are the differences: Code Name Description vsz virtual memory...

For some reason you have to pass the password hash if you want to create a role in postgres. To...

If you want to check the configuration of a running JVM process you can use jcmd. List the running processes...

Getting the whole bucket size aws s3 ls s3://$BUCKETNAME/ --recursive --human-readable --summarize | tail -n2 Tail is used because...

on the bash (issued as postgres user) Start/Stop/Restart PostgreSQL pg_ctl -D $configdir start|stop|restart Start/Stop/Restart the corresponding PostgreSQL...

Create htpasswd entry and print to stdout: $ sudo apt install apache2-utils # Optional $ htpasswd -n $USERNAME New password:

Investigate why mails are frozen The exim documentation says: Freezing occurs when a bounce message encounters a permanent failure because...