Guide How to Check, Restart and Fix CyberPanel Services (OpenLiteSpeed, MariaDB, Mail) - Printable Version +- AdminsForum (https://adminsforum.com) +-- Forum: Free & open-source control panels (https://adminsforum.com/Forum-free-open-source-control-panels) +--- Forum: CyberPanel (https://adminsforum.com/Forum-cyberpanel) +---- Forum: CyberPanel Guides & Tutorials (https://adminsforum.com/Forum-cyberpanel-guides-tutorials) +----- Forum: CyberPanel Getting Started Guides (https://adminsforum.com/Forum-cyberpanel-getting-started-guides) +----- Thread: Guide How to Check, Restart and Fix CyberPanel Services (OpenLiteSpeed, MariaDB, Mail) (/Thread-guide-how-to-check-restart-and-fix-cyberpanel-services-openlitespeed-mariadb-mail)

How to Check, Restart and Fix CyberPanel Services (OpenLiteSpeed, MariaDB, Mail) - JAY - 10-24-2026 How to Check, Restart and Fix CyberPanel Services (OpenLiteSpeed, MariaDB, Mail) Most "CyberPanel is broken" moments come down to one service that stopped: the web server, the database, DNS, FTP or mail. This guide shows how to see what's running, restart the right thing, and find out why it stopped. In the panel Open Server > Services Status. Each service has a status, its memory use and Stop/Restart buttons: You see OpenLiteSpeed (websites), MariaDB (databases), PowerDNS (DNS zones) and PureFTPd (FTP). Green "Running" is good. If one says "Stopped", click Restart and reload the page. The panel itself can't show you its own status: if the panel won't load, use SSH. From SSH: what runs what Code:Copy lscpd : the CyberPanel interface on port 8090. Code:Copy lsws : OpenLiteSpeed, which serves all your websites. Code:Copy mariadb : the database for your sites and for CyberPanel itself. Code:Copy pdns : PowerDNS. Code:Copy postfix (sending/receiving) and Code:Copy dovecot (IMAP/POP3): mail. Code:Copy pure-ftpd-mysql : FTP (that's its name on Ubuntu). Check them all at once: Code:Copy systemctl is-active lscpd lsws mariadb pdns postfix dovecot pure-ftpd-mysql Each line says active, inactive, failed or activating/deactivating (stuck). Restart one with: Code:Copy systemctl restart lsws Which one to restart? Panel won't load on 8090: check Code:Copy mariadb first, then restart Code:Copy lscpd . A "Server Error (500)" usually means the database: see our Server Error (500) fix. All websites down, panel fine: Code:Copy systemctl restart lsws . "Error establishing a database connection" on WordPress: Code:Copy mariadb . Mail not arriving or apps can't log in: Code:Copy postfix and Code:Copy dovecot . Domain doesn't resolve (only if you host DNS here): Code:Copy pdns . After changing PHP settings, the web server needs a graceful restart: Code:Copy systemctl restart lsws , or the Restart PHP button on the PHP settings page. Find out why it stopped Restarting fixes the symptom. The log tells you the cause: Code:Copy systemctl status mariadb --no-pager journalctl -u mariadb -b --no-pager | tail -40 Replace Code:Copy mariadb with the service you're checking. Other useful logs: Web server: Code:Copy /usr/local/lsws/logs/error.log CyberPanel: Code:Copy /home/cyberpanel/error-logs.txt Mail: Code:Copy /var/log/mail.log Also in the panel under Server: Access Logs, Error Logs, Email Logs and FTP Logs. Common reasons services stop Out of memory: Linux kills the biggest process, often MariaDB. Check Code:Copy free -h and Code:Copy dmesg -T | grep -i -E 'killed process|out of memory' . Add swap or more RAM. Disk full: Code:Copy df -h . Old backups and logs are the usual culprits. A config change: undo the last thing you changed. The installer's WatchDog option restarts the web server and database automatically when they crash. It's helpful, but if a service keeps crashing, find the cause instead of relying on it. Stuck? Post the output of Code:Copy systemctl is-active lscpd lsws mariadb pdns postfix dovecot and the last 30 lines of the failing service's journal in CyberPanel Support. More CyberPanel guides Fail2ban brute-force protection Change PHP version per website Git deployment from GitHub SSH key login, passwords off Create a website Issue SSL and fix failed certificates Subdomains, addon domains and aliases Rewrite rules, force HTTPS, HSTS Install WordPress with LiteSpeed Cache Cron jobs and a real WP-Cron Redis object cache for WordPress Databases and phpMyAdmin Email, DKIM, SPF and DMARC Email forwarding, catch-all, plus-addressing Mail queue, spam senders, blacklists CyberPanel DNS vs Cloudflare Packages and website limits Deploy Laravel on CyberPanel WordPress staging (clone) fixes Backups: create, restore, schedule File Manager and FTP Reset the admin password from SSH Log files and config locations First steps after install ModSecurity + OWASP rules (fix) CLI cheat sheet Install CyberPanel on Ubuntu 24.04 Firewall explained Install PHP extensions Change PHP settings (php.ini) Update CyberPanel safely Server Error (500) after a fresh install Packages, users and ACLs Upgrade CyberPanel safely Real visitor IPs behind Cloudflare Docker apps on your domain with SSL Import a large SQL file over SSH Remote MySQL access for one IP Move WordPress to CyberPanel by hand Fix "Error establishing a database connection" Fix PHP2Shell (CVE-2026-109618/109619) Run your own nameservers (PowerDNS) CyberPanel on a small VPS: RAM tuning Tested on CyberPanel 3.0 (build 8, OpenLiteSpeed edition) on Ubuntu 24.04, October 2026. Menu names can change slightly between versions.