Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Plesk Service/Interface
- Cannot log into Plesk: PHP Fatal error: Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 7.4.0"
- Plesk interface is not accessible on ports 8443/8880: ERR_CONNECTION_TIMED_OUT
- ASP.NET Settings menu is not accessible for Plesk customers/resellers after update to 18.0.52: 404 Page Not Found
- Performance Booster option is missing after update to Plesk Obsidian 18.0.52
- Some Plesk UI items like Node.js or Laravel are missed on the Domain page after update to Plesk 18.0.51
- How to create additional Plesk administrator accounts with fewer permissions on Plesk for Linux via CLI?
Other
- How to get/reset lost Plesk Administrator password?
- How to secure a Plesk server
- I cannot login to a support.plesk.com and password reset does not work
- How to disable/enable Directory Browsing for a domain in Plesk for Windows
- Is it possible to use Plesk behind HTTP/HTTPS proxy or web application firewall?
- Unable to upload files on web form: The 'Microsoft.ACE.OLEDB.12.0' provider is not registered on the local machine
Webserver
- Plesk websites return Apache error 403 on May 26, 2023: client denied by server configuration
- Apache fails to start on a Plesk server: ModSecurity: failed to load IPs from: /etc/asl/whitelist Could not open ipmatch file "/etc/asl/whitelist": No such file or directory
- How to disable specific ModSecurity rules in Plesk
- Static files in Plesk protected directory are inaccessible: ERROR: 404 not found
- Apache startup failed: Can't locate API module structure `proxy.plesk_module'
- Domain that has frame forwarding hosting type shows blank page on Plesk server
Applications & Extensions
- How to manage Plesk extensions (install, disable, remove, update)
- Plesk PHP handler is missing from Admin and Domains PHP Settings after installation
- Performance Booster fails to be enabled for Pleks hosted domain: "gzip" directive is duplicate
- Plesk Firewall can not be enabled in Plesk 18.0.52 and newer: I did not receive connectivity confirmation after applying new firewall configuration
- Error in DigitalOcean DNS extension in Plesk after updating it to version 1.3.9: Call to a member function get HeaderLine() on null
- Plesk Monitoring returns: An unexpected error occurred
Backup, Restore & Migration
- Unable to make database dump in Plesk: Unknown column 'generation_expression' in 'field list' (1054)
- Backups to Dropbox fail Plesk Obsidian update to 18.0.52: Unable to create the remote backup: (1): expected value
- Does Plesk have an integration with R1Soft?
- Unable to start the migration: Make sure that the the built-in administrator account login and password for the target host are correct
- Unable to save remote backup FTP server settings: Error: Unable to access to the storage: Transport error: unable to list directory: Curl error: (9) No such file or directory
- How to migrate domain web / mail / database?
Databases
- Unable to create a backup of PostgreSQL database: pg_dump: aborting because of server version mismatch
- Unable to clone or backup MSSQL database in Plesk: Property TextHeader is not available for StoredProcedure <...>. The text is encrypted
- MySQL/Mariadb fails to start: Upgrade after a crash is not supported
- How to manage a database hosted in Plesk using a local database client?
- How to upgrade MySQL 5.5 to 5.6/5.7 or MariaDB 5.5 to 10.x on Linux?
- How to add db_owner role to newly created users
Installation & Upgrade
- Which ports should be opened in the firewall on a Plesk server
- How to update Plesk Obsidian to the latest build
- Is it possible to upgrade Windows Server version when Plesk is installed?
- Unable to update Plesk with error: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY
- How to prepare installation image for further deployment
- Plesk packages were removed during Plesk daily update or after Plesk update
- Mailbox Size Limit in SmarterMail is not updated when changing mailbox size in Plesk
- Unable to connect to Mailbox via Roundcube webmail or any email client via IMAP if Plesk Premium Email is installed: Connection failed
- Unable to create a new mailbox on a server with SmarterMail: Incorrect Content-Type: must be textual to extract_string, JSON to extract_json
- Unable to send email to Gmail: This message does not pass authentication checks (SPF and DKIM both 550-5.7.26 do not pass)
- Incoming emails are not delivered on Plesk server: /usr/bin/deliverquota: No such file or directory
- Unable to send emails to Mailman mail list: Recipient address rejected: User unknown in virtual mailbox table
DNS & Statistics
- After updating Plesk to 18.0.52, Slave DNS Manager cannot be installed and does not sync DNS zones to slave DNS servers: Invalid json data input: ''
- Local email messages on a Plesk server are not delivered: Found DMARC record contained a bad token value
- Web Statistics page in Plesk shows 403 Forbidden error: Symbolic link not allowed or link target not accessible
- /etc/resolv.conf does not hold changes on the server with Plesk
- DNS Server on Plesk is not responding to the calls because or port knocking: connection timed out; no servers could be reached
- Plesk server DNS zones are not synchronizing with slave DNS server: transfer failed while receiving responses: REFUSED
Website Builder
- Presence builder shows the error in Plesk Obsidian 18.0.50: Unable to connect to Web Presence Builder server. Please contact the server administrator.
- How to configure cookie conscent in Web Presence Builder for Plesk?
- How to disable Google Fonts on a website hosted with Web Presence Builder?
- How to install Web Presence Builder 17.8.12 Standalone on Debian 10
- How to restore a deleted Web Presence Builder site from a snapshot located in a domain folder?
- Presence Builder button is not displayed for the domains