Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Plesk Service/Interface
- How to move a domain between subscriptions in Plesk
- Error during Plesk upgrade procedure: rsync: [Receiver] failed to connect to rsync.autoinstall.plesk.com
- Error on Plesk for Windows server: Module "IsapiCachesModule" could not be found
- How to troubleshoot the website availability via Website Log Check in Plesk?
- On a Plesk server, information from plesk bin service_plan --info differs from plesk bin service_plan --xml-info
- Error when deleting a domain on a Plesk server: Result of interface implementation call: failure: Can not find domain by id
Other
- How to monitor usage of system resources in a period of time using atop
- How to manage local firewall rules using Plesk Firewall in Plesk for Linux
- Does Plesk provide Encryption at Rest?
- Why domain's disk space usage in Plesk is different from size of document root in file system?
- iotop error on a Plesk server: command not found
- After an OS upgrade, where is the old my.cnf file on my Plesk server?
Webserver
- Websites on PHP-FPM are unavailable or loading slowly: server reached max_children setting (*), consider raising it
- Apache keeps going down on a Plesk server: server reached MaxRequestWorkers setting
- 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)
- How to configure port mapping in the Docker extension with Portainer in Plesk?
- Unable to start migration: too many values to unpack (expected 2)
- Nextcloud extension cannot be installed on a domain in Plesk: Unable to download file
- Plesk file search fails on Windows with relocated vhosts: Path is invalid
- Seafile is running, but can't login via default client on a Plesk server
Backup, Restore & Migration
- 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
- Plesk backup to remote FTPS storage fails: Last FTP request: APPE
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?
- 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
- Debian 11 server cannot boot after Plesk automatic updates
- It is not possible to purchase Plesk extension from Extensions catalog with 403 error
- How to identify spam source on Plesk for Linux Server
- An IP address of a Plesk mail server got blacklisted. How to troubleshoot?
- SpamAssassin ignores mailboxes specfic configration when mailbox contains an ampersand
- Delays in mail syncronization for mailboxes hosted on a Plesk server
- 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
- 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?
- Plesk DNS doesn't work for some domains: checkhints: b.root-servers.net/A (203.0.113.2) missing from hints
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?
- Unable to modify site with Web Presence Builder: We selected 'Europe/Berlin' for 'CEST/2.0/DST' instead
- Cannot publish a site with WPB for cPanel: "Can't receive authorization to work with the host"