The Perfect Server - Ubuntu 15.04 (Vivid Vervet) with Apache, PHP, MySQL, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3 at step: Install Postfix, Dovecot, MariaDB, phpMyAdmin, rkhunter, binutils netstat -tap | grep mysql gives: tcp6 0 0 [::]:mysql [::]:* LISTEN 11629/mysqld and not as according to the manual being: tcp 0 0 *:mysql *:* LISTEN 24603/mysqld do I have a problem?
No, thats both ok. Your line shows that your server uses ipv4 and ipv6 while the other line is from a server with ipv4 only.
Next point: nano /etc/fstab done. mount -o remount / done quotacheck -avugm done quotaon -avug my result: /dev/mapper/server1--vg-root [/]: group quotas turned on /dev/mapper/server1--vg-root [/]: user quotas turned on manual shows as result from: quotaon -avug root@server1:/etc/mysql/mariadb.conf.d# quotacheck -avugm quotacheck: Scanning /dev/mapper/server1--vg-root [/] done quotacheck: Cannot stat old user quota file //quota.user: No such file or directory. Usage will not be subtracted. quotacheck: Cannot stat old group quota file //quota.group: No such file or directory. Usage will not be subtracted. quotacheck: Cannot stat old user quota file //quota.user: No such file or directory. Usage will not be subtracted. quotacheck: Cannot stat old group quota file //quota.group: No such file or directory. Usage will not be subtracted. quotacheck: Checked 11029 directories and 79849 files quotacheck: Old file not found. quotacheck: Old file not found. root@server1:/etc/mysql/mariadb.conf.d# quotaon -avug /dev/mapper/server1--vg-root [/]: group quotas turned on /dev/mapper/server1--vg-root [/]: user quotas turned on why did I miss /etc/mysql/mariadb.conf.d
These outputs are always an example, the output on your system can be exactly like this but there can also be some slight differences, depending on the server. Thats what matters, so your system is ok.