Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Plesk Service/Interface
- MySQL fails to start when a Plesk server lacks disk space: SQLSTATE[HY000] No space left on device 500 Plesk\Exception\Database
- Random pages in Plesk can not be opened with: 500 ApiFetchError
- ASP.NET or other components installed not via Plesk are not detected at Server Components menu
- Unable to Edit SPF TXT Record: Variable "$input" got invalid value
- Plesk can not be updated or is not accessible: Class Laminas\ServiceManager\ServiceLocatorInterface cannot implement previously implemented interface
- Unable to click the checkbox in the settings screen on Plesk: the Hand pointer cursor does not appear
Other
- How to diagnose a DoS/DDoS attack and find websites under attack on a Plesk server
- How to monitor usage of system resources in a period of time using atop?
- Plesk administrator receives Anacron "cron.daily" notifications
- Rest API vulnerability against the CSRF attack in Plesk
- Is Plesk affected by CVE-2022-42889 vulnerability in Apache Commons Text library?
- Roundcube interface skin option is missing after Plesk update
Webserver
- Apache fails to start on a Plesk server after Apache update on CentOS 7 / RHEL 7
- Websites on PHP-FPM are unavailable or loading slowly: "server reached max_children setting" OR "pool seems busy"
- How to enable the use GET, HEAD, POST, PUT, DELETE, PATCH requests on a Plesk for Windows Server
- Plesk Update fails on CentOS: Failed to solve dependencies: php-process-5.4.16
- AWStats is not calculated on a Plesk server with CentOS 7 and enabled SELinux
- What are .php-ini and .php-version files at the domain directory on Plesk server?
Applications & Extensions
- How to manage Plesk extensions (install, disable, remove, update)
- Litespeed extension throws an error after update to Plesk 18.0.50: Exception Caught - Warning: Undefined array key "REMOTE_ADDR" in PleskEscalate.php
- How to enable Queues in the Laravel project for Plesk Laravel Toolkit
- Backup to Acronis can not be created in Plesk: Operation failed due to a temporary issue in the Cloud storage
- Unable to access the Administrative interface of an application from APS Catalog as customer: 500 TypeError: Cannot read properties of null (reading 'length')
- CVE-2022-3590: WordPress <= 6.1.1 - Unauth. Blind SSRF vulnerability
Backup, Restore & Migration
- Backup via Plesk Google Drive fails: your computer or network may be sending automated queries
- Unable to migrate a subscription: Failed to perform action: Restart IIS for IDN domains
- Backup can not be created in Plesk: "Document is empty, line 1, column 1 (, line 1)" or "None (line 0)"
- Unable to create a backup in Plesk: Failed to exec backup_restore_helper: Exit code: 3: System user unavailable
- Plesk backup finishes with warning message: lscache/.cm.log: Permission denied
- Scheduled backups fails since update to Plesk Obsidian 18.0.47: expected str, bytes or os.PathLike object, not int
Databases
- How to troubleshoot slow performance of MySQL on a Plesk server?
- Are there any alternatives to myLittleAdmin in Plesk for Windows?
- MariaDB cannot start on Plesk server: redo log file exists
- Unable to start MariaDB 10.6 on a Plesk server: Bind on TCP/IP port. Got error: 22: Invalid argument
- Plesk or system update fails on Linux: http://yum.mariadb.org/10.1/centos7-amd64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found
- Plesk database servers menu shows warning: Unable to determine the TCP port number used by Microsoft SQL server 'localhost'
Installation & Upgrade
- How to update Plesk Obsidian to the latest build
- How to install Plesk for Linux?
- Which ports should be opened in the firewall on a Plesk server
- Unable to update Plesk/Install components: Unable to create yum cache for '*epel' OS repository.
- Plesk update/upgrade fails: The installation of the package 'iiscompression' failed with code 1603
- plesk repair fs fails: ERROR:Cannot find deb-archive for package plesk-backup-utilities
- How to troubleshoot autodiscover functionality in a Plesk server?
- Why is Roundcube 1.5.0/1.6.0 not available in Plesk for CentOS 7 and Ubuntu 18.04?
- Outlook cannot connect via TLS to a Plesk server after Windows update (KB5018410)
- Unable to start Postfix in Plesk: /usr/sbin/postconf: libmysqlclient.so.18: cannot open shared object file: No such file or directory
- Incoming mail to Plesk server is rejected by Spamhaus BL: Error: open resolver
- Swiftmailer/Symfonymailer or Prestashop messages stopped working after upgrading Plesk to version 18.0.45
DNS & Statistics
- Plesk messages to Gmail get bounced with error: fails to pass SPF checks with the ip
- A warning exists for the Plesk-hosted domain in online checkers: SOA Expire Value out of recommended range
- Unable to start named/bind DNS in Plesk: unknown option 'version'
- Domain is not accessible from some locations after switching to Plesk nameservers due to DNSSEC misconfiguration
- Transfer DNS button is missing in Plesk
- Is it possible to manage DNSSEC via command-line interface in Plesk?
Website Builder
- How to disable Google Fonts on a website hosted with Web Presence Builder?
- Unable to publish website in Web Presence Builder: Unable to Connect to ssl://feedback.pp.parallels.com:443: Name or service not known
- Migration from WPB 12.0 to WPB 17.8.12
- How to enable Web Presence Builder in Plesk for all websites?
- Error while accessing Plesk Web Presence Builder: Base table or view not found
- Unable to create a backup or restore Web Presence Builder snapshot in Plesk for Windows: Invalid Snapshot