Adding SWAP space on exiting Debian Server
Follow below steps add SWAP space to an existing Linux Debian server:
- Create 2GB swap_file in /swap directory:
dd if=/dev/zero of=/swap/swap_file bs=1M count=2048
- Setup file permissions:
chmod 0600 /swap/swap_file
- Setup Linux swap area:
- Enable swapping:
sudo swapon /var/cache/swap/myswap
The IP was already used for trialing on...
Plesk web host server is sending following emails multiple times a day:
Subject: Cron <root@localhost> /usr/bin/kcarectl --auto-update --gradual-rollout=auto
Content: The IP 18.104.22.168 was already used for trialing on 2018-07-05
Warning: require_once(Mail.php): failed to open stream
After upgrading PHP from 5.4.16 to 5.6.36 web pages that contain PEAR mail scripts fail to load with Error 500 (Internal Server Error)
After enabling display_errors in PHP settings following errors were displayed:
Warning: require_once(Mail.php): failed to open stream: No such file or directory in /var/www/vhosts/domain.com/httpdocs/forms/contact_form.php on line 18
Fatal error: require_once(): Failed opening required 'Mail.php' (include_path='.:/opt/plesk/php/5.6/share/pear') in /var/www/vhosts/domain.com/httpdocs/forms/contact_form.php on line 18
Installing Ubiquiti UniFi Controller on CentOS Docker Container (Plesk)
This tutorial shows how I installed and setup Ubiquiti UniFi Controller on 1&1 CentOS 7 VPS web server using Docker Container.
- Login to Plesk Control Panel, open Docker, search for jacobalberty/unifi, and Run latest version.
- Uncheck Automatic port mapping and remap ports that are already used by other services on the server. In my case, I remapped port 8880 (to 8881) and port 8443 (to 8444).