Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Other
- How to subscribe on changes in Plesk Help Center articles / sections
- How to monitor usage of system resources in a period of time using atop?
- Hourly notifications are received from Plesk: Protocol version '1.6.8.0' is deprecated. Current protocol version is '1.6.9.1'.
- Does Plesk support CloudLinux 6 with extended support ?
- Plesk administrator receives mails: Cron error: /usr/sbin/ntpdate: not found
- Domain shows 403 error after using Move Domain feature
Plesk Service/Interface
- File searched into Plesk file manager and edited, is not saved in the correct location
- Backups created in a customer, reseller or admin account are shown in a different customer, reseller or admin account
- The File Sharing feature is absent in the Plesk UI
- Unable to access Certificate for securing mail: HTTP ERROR 500
- Why there is no redirect from http to https to access Plesk login page?
- Plesk Daily Maintenance Task deletes disabled ModSecurity rules
Webserver
- Websites on PHP-FPM are unavailable or loading slowly: "server reached max_children setting" OR "pool seems busy"
- Site works slowly. What can be checked?
- How to secure a Plesk hostname on port 8443 with an SSL certificate (Let's Encrypt / other certificate authorities)
- Unable to access Plesk and IIS service: Error: Configuration file is not well-formed XML
- Apache periodically down when docker is running: Can not restart web server
- Nginx configuration files become broken when set values to 0: invalid max_size value/invalid time value
Applications & Extensions
- [FIXED BUG] mod_rewrite stopped working. All pages on WordPress sites show 404
- Mail stuck in queue when Plesk Email Security installed on SELinux enforced server
- Cannot change Node.js application root in Plesk: Class 'CommonPanel_Validate_FileSharing_FolderName' not found
- RapidSSL and GeoTrust paid SSL certificates provided by SSL It! extension are not supporting www and SAN
- Unable to update Wordpress: WordPress version requires PHP version 5.6.20 or newer
- Amavis is not installed/removed along with Plesk Email Security
Backup, Restore & Migration
- Plesk Migrator shows the warning: There is no shared IPv6 address on target Plesk
- Plesk backup finishes with warning: Not all the data from /var/www/vhosts/example.com was backed up successfully
- Cannot create remote backup in Plesk. Error: Unable to export backup: Transport error: Extension transport: ext://one-drive-backup/server/: Required parameter not passed: "refresh_token"
- Unable to configure Microsoft OneDrive Backup: SQLSTATE[HY000]: General error: 8 attempts to write a read-only database
- The following errors sending by email after scheduled backup to OneDrive pmm-ras failed (Error code = 1): Repository error: Failed to read backup
- FTP backup to vsFTPd is not working
Databases
- How to upgrade MySQL 5.5 to 5.6/5.7 or MariaDB 5.5 to 10.x on Linux?
- Diagnose & Repair tool fails to resolve the issues with Plesk database: file does not exist or is not executable
- How to restore Plesk system databases from a Plesk daily/pre-upgrade dump
- Websites configured with PHP 7.2 or lower version fail to establish a database connection after updating MariaDB to v10.2.35 or v10.3.26: Malformed communication packet
- Checking the consistency of the Plesk database shows: Inconsistency in the table 'smb_roleServicePermissions' for the column servicePermissionId: No rows in the table 'smb_servicePermissions' with id = 1
- MySQL error on the server with Plesk: Could not increase number of max_open_files to more than
Installation & Upgrade
- How to update Plesk Obsidian to the latest build
- How to install Plesk for Linux?
- How to install an SSL certificate for a domain in Plesk (Let's Encrypt / other certificate authorities)
- Which ports should be opened in the firewall on a Plesk server
- After upgrading Plesk Obsidian to 18.0.30, scheduled Plesk backups show the message: The following files were not found or were corrupted: backup_privatekey_2009210501.tgz
- Cannot update to Plesk Obsidian 18.0.29 on Plesk for Windows: Error occured while performing sub-action 'UpgradeZip'
- [BUG] Incoming messages are duplicated on all mailboxes on a Plesk server with Courier
- Emails are not sent/received when Plesk Email Security is installed: Access denied for user '<database_name>'@'127.0.0.1' (using password: YES)
- Mail stuck in the queue in the server with Plesk: Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (13)
- Mail autodiscover in Plesk does not work with Outlook 365
- The FROM address is replaced by the forwarder email address when the Fix incorrectly set sender for outgoing mail option is enabled
- Unable to send or receive e-mail messages: Client host rejected: cannot find your hostname
DNS & Statistics
- Unable to update web-statistics in Plesk: Unable to parse pending domains traffic line
- How to add an MX DNS record with a custom priority for a Plesk domain?
- Mail is received: No valid IP addresses found for sub.example.com
- CVE-2020-8616, CVE-2020-8617: BIND vulnerabilities
- Unable to access the website with redirect: server IP address could not be found
- Website hosted in Plesk shows Web Server's Default Page: Domain is resolved to the wrong IP address from the same server.
Website Builder
- Migration from WPB 12.0 to WPB 17.8.12
- How to enable Web Presence Builder for all websites?
- Mobile version of the WPB website throws js error, preventing sending mail via web form
- Presence Builder does not redirect to correct URL when the session in browser is expired: Unable to connect to Web Presence Builder server
- Web Presence Builder "Text & Images" module is displayed on all website pages instead of being displayed only on the page where the module had been added
- Error while accessing Web Presence Builder: Base table or view not found