Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Other
- How to start a command prompt as an Administrator on Windows Server
- How to get/reset lost Plesk Administrator password in Plesk for Linux
- Plesk repair fs utility fails on Plesk Obsidian 18.0.32: WARNING:failed to parse '/usr/local/psa/admin/plib/vendor/goetas-webservices/xsd-reader/tests/foo bar/referenced.xsd
- How to upgrade PHP composer on a Plesk server
- Are there any limitations for CloudLinux 8 support in Plesk
- Unable to issue Let's Encrypt SSL certificate in Plesk: No domains have passed validation
Plesk Service/Interface
- Plesk interface is not accessible on ports 8443/8880: ERR_CONNECTION_TIMED_OUT
- How to change the view in the Websites & Domains menu in Plesk
- Unable to manage PHP Performance and security settings and PHP-FPM settings as customer or reseller in Plesk Obsidian 18.0.32
- Bandwidth limiting options are unavailable for domains in Plesk Obsidian 18.0.32
- Unable to log in to Plesk Obsidian: Error: Access for administrator from address '127.0.0.1' is restricted in accordance with IP Access restriction policy currently applied.
- Plesk Premium Antivirus can not be started: Plesk authorization failed: malformed response (no 'response=' field).
Webserver
- Websites on PHP-FPM are unavailable or loading slowly: "server reached max_children setting" OR "pool seems busy"
- Unable to reconfigure domain on Plesk server: Wrong variable to subsitute: webAppFirewallSettings
- Unable to start Apache on Ubuntu 16: Failed to mangle name: Invalid argument
- When PHP 8 will be implemented in Plesk ?
- 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
Applications & Extensions
- Unable to activate or update the Comodo rule-set in Plesk ModSecurity: Error interacting with https://waf.comodo.com/doc/meta_comodo_apache.yaml: <urlopen error [Errno 113] No route to host>
- [FIXED BUG] mod_rewrite stopped working. All pages on WordPress sites show 404
- Unable to issue or renew Let's Encrypt certificate when external DNS server is used: Incorrect TXT record
- A website hosted in Plesk fails to load when Cloudflare is used: ERR_TOO_MANY_REDIRECTS
- ModSecurity ruleset update error in Plesk installed on Debian-based OS (Debian, Ubuntu): "modsecurity_ctl failed: modsecurity_ctl: unrecognized option '--apache'"
- WordPress functionality is broken in Plesk after changing domain PHP version to 8.0: Uncaught TypeError: implode(): Argument #2 ($array) must be of type ?array,
Backup, Restore & Migration
- Unable to connect to a Plesk server via FTP in the passive mode
- Unable to backup some databases via Plesk Backup Manager: database belongs to the other subscription
- Migration in Plesk failed: Configuration error: Invalid remote IP address '0.0.0.0'
- 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"
Databases
- 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
- Diagnose & Repair tool detected issues with the database. How to fix them?
- 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
- Cannot import database dump in Plesk: Index column size too large. The maximum column size is 767 bytes
Installation & Upgrade
- How to change or get the server hostname on the Plesk server
- After November 30th, 2020, updating system packages on Plesk server with CentOS 6 fails: Cannot find a valid baseurl for repo: base
- Unable to upgrade Plesk: Duplicate entry for key 'guid'
- 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'
- Ubuntu 20.04 support in Plesk
- What are spam outbound protection recommendations on Plesk for Linux?
- Mail stuck in queue on Plesk server: delivery temporarily suspended: connect to 127.0.0.1[127.0.0.1]:10024: Connection refused
- [BUG] Incoming messages are duplicated on a few or 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)
- Incoming mail is not received on Plesk server: DMARC: REJECT message for john.doe@example.com
DNS & Statistics
- Domains hosted on Plesk server cannot be accessed: DNSPROBE FINISHED ERROR
- 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 Builder
- Migration from WPB 12.0 to WPB 17.8.12
- How to enable Web Presence Builder for all websites?
- 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
- Unable to backup/restore a Web Presence Builder snapshot: Invalid Snapshot