Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Plesk Service/Interface
- Which ports should be opened in the firewall on a Plesk server?
- MySQL/MariaDB fails to start when a Plesk server lacks disk space: SQLSTATE[HY000] No space left on device 500 Plesk\Exception\Database
- On Plesk server with CloudLinux, creating domain or changing domain's hosting type fails: Error: hosting update is failed
- Unable to create Scheduled Task for domain in Plesk: Call to a member function getDomain() on null.
- How to hide the Monitoring button from the domain card in a Plesk server?
- An issue with the FTP user creation: Internal error Failed to load tree data.
Other
- How to secure a Plesk server
- How to monitor usage of system resources in a period of time using atop
- Does Plesk support CloudLinux 9?
- After removing mailman as a Plesk component, services stay up.
- Does Plesk provide Encryption at Rest?
- Why domain's disk space usage in Plesk is different from size of document root in file system?
Webserver
- Websites on PHP-FPM are unavailable or loading slowly: server reached max_children setting (*), consider raising it
- What DDoS protection tools are available in Plesk
- How to disable specific Web Application Firewall ModSecurity rules in Plesk
- How to enable Step Debugger on PHP on a Plesk server?
- On WordPress website hosted on Plesk for Linux server, pagination buttons in WordPress Admin dashboard do not work as expected
- WordPress instance is marked as broken on CloudLinux OS: timeout: fork system call failed: Cannot allocate memory
Applications & Extensions
- How to manage Plesk extensions (install, disable, remove, update)
- S3 backup fails: Unsupported header 'x-amz-checksum-crc32' received for this API call.
- Plesk Nextcloud extension deactivates users by constantly failing to log in
- Docker outbound traffic gets blocked after 18.0.67 Update #3
- Monitoring widget on Plesk server's home page does not detect hardware changes
- Imunify installation on a Plesk server fails: no such table: proactive.proactive
Backup, Restore & Migration
- Can't create OneDrive backups: Microsoft OneDrive returns the error: Unauthenticated
- Unable to restore backup in Plesk: This backup can be restored by the Plesk administrator only
- Unable to select failed Plesk Backup for deletion as checkbox is greyed out: The backup cannot be removed because it is part of a server, reseller or customer backup.
- Plesk is unable to create backup on OneDrive storage: The object specified does not belong to a list.
- Migration fails: ERROR 2026 (HY000): TLS/SSL error: SSL is required, but the server does not support it
- Creating backups to remote storage in Plesk on AlmaLinux/RHEL 9: Unable to create the remote backup: Cannot update digest: error:030000BD:digital envelope routines::update error
Databases
- 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
- Can not connect to the database server: can't connect to mysql server on example.com (10061)
- Unable to restore the Microsoft SQL database: Log file size in backup is greater than the maximum allowed size
- MariaDB fails to restart after upgrade from 10.5 or below to 10.6 or above using upgrade tool in Plesk
- MariaDB crashes after update on a Plesk server: mariadb.service: main process exited, code=exited, status=218/CAPABILITIES
Installation & Upgrade
- How to update Plesk Obsidian to the latest build?
- CentOS 7 to AlmaLinux conversion fails in Plesk: Detected unknown GPG keys for target system repositories: http://autoinstall.plesk.com/plesk.gpg
- Unable to update Plesk on Ubuntu 22: Failed to download the file http://autoinstall.plesk.com/pool/PHP_7.1.33_11/php71-ubt22.04-x86_64.inf3
- How can you prevent the 90-plesk-sieve.conf file from being overwritten during an update?
- Cannot install Plesk on Almalinux: Installation hangs on "Installing the package Site Import"
- Plesk or system upgrade fails: error processing package shim-signed
- 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'
- SpamAssassin ignores mailboxes specfic configration when mailbox contains an ampersand
- Delays in mail syncronization for mailboxes hosted on a Plesk server
- Roundcube inaccessible when LiteSpeed is running: Connection to storage server failed
- Unicode special characters in messages sent from Plesk server are displaying incorrectly after the upgrade to Plesk Obsidian 18.0.65: Failed to build output message as bytes.; 'ascii' codec can't encode characters in position X: ordinal not in range(128)
- MailEnable Console does not show any domains on the console on a Plesk server
DNS & Statistics
- 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
- How to disable the automatic "notify-to-soa yes" in named.conf for domains in a Plesk server?
Website Builder
- 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?
- Unable to modify site with Web Presence Builder: We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead