Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Plesk Service/Interface
- MySQL/MariaDB fails to start when a Plesk server lacks disk space: SQLSTATE[HY000] No space left on device 500 Plesk\Exception\Database
- Why swap is required on Plesk for Linux servers?
- Is it possible to manage swap using Plesk?
- Unable to open mail server configuration for a domain in Plesk UI: The label can only be a string
- European Accessibility Act came into force on June 28, 2025. How Plesk plans to address it?
- Reseller account do not inherit limits after switching the reseller plan via CLI in Plesk
Other
- How to enable/create a swap file on a Plesk Linux server?
- How to monitor usage of system resources in a period of time using atop
- Does Plesk offer discounts?
- How to configure rate limiting for login attempts in Plesk?
- Why there are duplicate executables with different version in /usr/bin and /usr/local/bin?
- Nginx test reports warning: nginx: [warn] "ssl_stapling" ignored, no OCSP responder URL in the certificate
Webserver
- What DDoS protection tools are available in Plesk
- How to disable specific Web Application Firewall ModSecurity rules in Plesk
- How to block user-agents in Plesk Control Panel on Windows?
- How to block user-agents in Plesk Control Panel on Linux?
- Unable to connect to MSSQL using web.config: Cannot open database “ASPState” requested by the login. The login failed.
- How to update ImageMagick to version 7 in CentOS 7.9 in php 8.2?
Applications & Extensions
- Error while trying to access SpamFilter Panel of SpamExperts Email Security extension in Plesk: getScheme() must be compatible with Psr\Http\Message\UriInterface
- Plesk email notification is received: error: state file /var/lib/logrotate/status is already locked
- Plesk Migrator migration from cPanel to Plesk server fails with error: That is a critical error, migration was stopped
- Installing Grafana extension on Plesk server with Ubuntu 24.04 fails: The following signatures were invalid: 8BADC1A02FC9C07FB8C20EC0BD11A6AA914BDF7E (untrusted public key algorithm: dsa1024)
- Which Node.js versions are available for installation in Plesk for Windows?
- PHP-FPM (FastCGI Process Manager) is reported as down after Plesk update
Backup, Restore & Migration
- Unable access active migration session in Plesk: version_compare(): Argument #1 ($version1) must be of type string, array given
- Acronis Backup: Failed to install the backup agent. For details, see /var/log/trueimage-setup.log
- Plesk migrator did not transfer more than one mail forward from a cPanel
- Unable to access Acronis Backup extension in Plesk: Cannot protect a device with assigned quota
- Unable to back up APS controller data. Error: resource of type aps.database with id not found by brokers
- High network traffic consumption when doing backup to AWS S3 Bucket
Databases
- Can't install MariaDB in Plesk Windows: FATAL ERROR: Can't create data directory 'N:\MySQL-Data' (one or more intermediate directories do not exist)
- Cannot see remote MySQL/MariaDB database in Plesk Customer Panel
- MariaDB upgrade option is missing under Tools & Settings > Database Servers
- On a Plesk server with WP Toolkit, an unwanted prefix is added to the name of a cloned database
- Cannot use database upgrade tool or Performance Booster for MariaDB 11.4
- Can not connect to the database server: can't connect to mysql server on example.com (10061)
Installation & Upgrade
- What are the recommended values for SWAP, RAM and Disk space while using Plesk Obsidian?
- How to update Plesk Obsidian to the latest build?
- Unable to update Plesk : The following signatures were invalid: XXXXX (untrusted public key algorithm: rsa3072)
- What applications from the APS catalog are being deprecated in Plesk Obsidian 18.0.71?
- Problem updating Plesk using Ubuntu Landscape
- Error when installing Plesk on Windows Server 2025: Unable to install the "panel-18.0.69.noarch" package.
- CVE-2025-49113 Vulnerability in Roundcube on Plesk servers
- How to enable 2 step authenticantion (2FA) in SOGo webmail?
- Unable to create domain in Plesk: mailmng failed: Incorrect Content-Type: must be textual to extract_string, JSON to extract_json. at generateDKIMKeyPair(default, 2048)(SmarterMail::Common::Domain::generateDKIMKeyPair line 199)
- How to list all mailboxes, their size, mail quota and mailbox occupation?
- How to display hidden folders in roundcube webmail?
- Unable to receive email with Plesk Email Security extension installed: (!)connect_to_sql: unable to connect to DSN 'DBI:mysql:database=emailsecurity;mysql_socket=/var/run/mysqld/mysqld.sock'
DNS & Statistics
- How to use DNS with a Plesk server
- How to enable the local DNS zone for a Plesk domain?
- DNS bind service fails on a Plesk server after recent bind package update: loading from master file /var/named/chroot/var/0.13.203.in-addr.arpa.next failed: too many records
- How to track which file is being most downloaded on a website on a Plesk server?
- Why is it not possible to add a DS record to a root domain in Plesk?
- Unable to start BIND DNS server service on a server with Plesk for Debian/Ubuntu: option 'dnssec-enable' no longer exists
Website Builder
- Error opening Site Builder: pm_Exception: You don't have permission to perform this action
- Sitejet Builder editing error: Can not access Sitejet Website Builder for this domain after migration.
- Unable to publish website created in Web Presence Builder: APIv1 is deprecated. Please, switch to the new APIv3
- Unable to find Web Presence Builder in Plesk Installer
- Does the Sitejet Builder replace the Web Presence Builder in Plesk?
- How can I move a website built with Sitejet to a new domain while maintaining the ability to update it with Sitejet?