Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Plesk Service/Interface
- Plesk is GUI not accessible after update from Onyx to Obsidian: ERROR: Type of GraphQL\Language\AST\ScalarTypeDefinitionNode::$kind must not be defined
- Plesk Performance Booster displays the warning: Following permissions are not allowed in the subscription, or service plan: PHP version and handler management
- Plesk Performance Booster displays the warning: Following permissions are not allowed in the subscription, or service plan: Common PHP settings management
- Plesk Performance Booster displays the warning: Following permissions are not allowed in the subscription, or service plan: Hosting settings management
- Dynamic list layout is broken after Plesk update to 18.0.55
- Unable to access domain hosting settings from Reseller login and dynamic view in Plesk for Windows
Other
- How to secure a Plesk server
- Why Plesk default page appears instead of the website?
- Upcoming 2024 changes in chain of trust of Let's Encrypt certificates which will affect opening websites hosted on Plesk servers on outdated devices
- Is it possible to upgrade a Plesk server from CentOS 7 to AlmaLinux 9?
- Changes to Red Hat's Source Code Policies and their Impact on Plesk
- Why after Plesk update to 18.0.53 there's a warning when accessing technical domain for the first time: A technical domain is designed for testing the operation and functionality
Webserver
- How to disable specific ModSecurity rules in Plesk
- Nginx shows warning when running nginx -t: nginx: [warn] protocol options redefined for 203.0.113.2
- How to set Security Policy in Plesk via CLI?
- Plesk websites return Apache error 403 on May 26, 2023: client denied by server configuration
- Apache fails to start on a Plesk server: ModSecurity: failed to load IPs from: /etc/asl/whitelist Could not open ipmatch file "/etc/asl/whitelist": No such file or directory
- Specific page can not be accessed for a Plesk domain: Symbolic link not allowed or link target not accessible
Applications & Extensions
- WordPress Toolkit can not list plugins: Something went wrong. Cannot read properties of null (reading 'map')
- Unable to install applications from APS catalog: Server Error 502 Bad Gateway
- Plesk Premium antivirus sends a lot of notifications: Your virus bases are obsolete
- SiteJet Builder requires an API key after reinstallation
- Grafana does not work: login.OAuthLogin(missing saved state)
- An error is displayed in the NodeJs menu: Node.js application in the subscription already uses this application root
Backup, Restore & Migration
- Unable to make database dump in Plesk: Unknown column 'generation_expression' in 'field list' (1054)
- Backups to Dropbox fail Plesk Obsidian update to 18.0.52: Unable to create the remote backup: (1): expected value
- Unable to open Backup Manager in Plesk: 'utf-8' codec can't decode byte 0xfa in position 60: invalid start byte
- Does Plesk have an integration with R1Soft?
- Unable to start the migration: Make sure that the the built-in administrator account login and password for the target host are correct
- Unable to save remote backup FTP server settings: Error: Unable to access to the storage: Transport error: unable to list directory: Curl error: (9) No such file or directory
Databases
- How to upgrade MySQL 5.5 to 5.6/5.7 or MariaDB 5.5 to 10.x on Linux?
- How to troubleshoot slow performance of MySQL on a Plesk server?
- Database server list can't be accessed: 500 GraphQL Internal Server Error
- Unable to create a backup of PostgreSQL database: pg_dump: aborting because of server version mismatch
- Unable to clone or backup MSSQL database in Plesk: Property TextHeader is not available for StoredProcedure <...>. The text is encrypted
- MySQL/Mariadb fails to start: Upgrade after a crash is not supported
Installation & Upgrade
- Which ports should be opened in the firewall on a Plesk server
- How to install Plesk for Linux?
- How to install/remove additional PHP versions provided by Plesk
- How to update Plesk Obsidian to the latest build
- How to upgrade Firewall configuration from Plesk Onyx to Plesk Obsidian?
- Cannot upgrade Plesk or install a package: dpkg: error processing package linux-image-generic - error 25 : Write error : No space left on device
- Best practices for sending outgoing mail from a Plesk server
- How to change DKIM key value in Plesk without causing mail delivery outages
- Mailbox Size Limit in SmarterMail is not updated when changing mailbox size in Plesk
- Email header analysis reports SPF failed for localhost IP on mail sent from Plesk hosted mailbox: SPF Authentication : SPF Failed for IP - 127.0.0.1
- Is it possible to set a custom DKIM selector on Plesk for Linux server?
- How to make custom changes in Roundcube/Horde configuration files persistent?
DNS & Statistics
- How to use DNS with a Plesk server
- How to check propagation of DNS records for a Plesk domain?
- Unable to create new domain in Plesk: Cannot delete the last NS DNS record for the domain
- After updating Plesk to 18.0.52, Slave DNS Manager cannot be installed and does not sync DNS zones to slave DNS servers: Invalid json data input: ''
- Local email messages on a Plesk server are not delivered: Found DMARC record contained a bad token value
- Web Statistics page in Plesk shows 403 Forbidden error: Symbolic link not allowed or link target not accessible
Website Builder
- Unable to modify site with Web Presence Builder: We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead
- Presence builder shows the error in Plesk Obsidian 18.0.50: Unable to connect to Web Presence Builder server. Please contact the server administrator.
- How to configure cookie conscent in Web Presence Builder for Plesk?
- Domains' tab is not accessible in Plesk: 500 SB_Facade_Exception_NotFound
- How to disable Google Fonts on a website hosted with Web Presence Builder?
- How to install Web Presence Builder 17.8.12 Standalone on Debian 10