Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Other
- How to diagnose a DoS/DDoS attack and find websites under attack on a Plesk server
- How to manage local firewall rules using Plesk Firewall in Plesk for Linux
- Phishing Mail received: <example.com> Attention! No disk space(quota) left
- Fix for security-related bug (PFSI-62467)
- Unauthenticated Remote Root Code Execution on Plesk Panel
- Microsoft Windows - 'SeImpersonatePrivilege' Local Privilege Escalation
Plesk Service/Interface
- How to set up/change a public IP address in Plesk when the server is behind a router with NAT
- MySQL fails to start when a Plesk server lacks disk space: SQLSTATE[HY000] No space left on device 500 Plesk\Exception\Database
- See Details button doesn't show notification details for scheduled tasks (cron jobs) since Plesk Obsidian 18.0.36
- Unable to access Plesk: 500 Call to undefined function plesk_str_replace()", file "common_func.php"
- Event handler "Physical hosting updated" throws error message each time it executed: Could not decode JSON, syntax error - malformed JSON
- [BUG] Blank page is shown after clicking on Add Domain, Add Subdomain or Add Subscription
Webserver
- What DDoS protection tools are available in Plesk
- Websites on PHP-FPM are unavailable or loading slowly: "server reached max_children setting" OR "pool seems busy"
- The execution of plesk repair installation command incorrectly leads to error: File not found: example.com.conf
- All websites/webmails on Plesk for Linux server show error 502 every hour or even constantly
- CVE-2021-23017: Nginx
- Apache fails to start on a Plesk server: SSL routines:SSL_CTX_set_cipher_list:no cipher match
Applications & Extensions
- Plesk install/update fails or notifications about failed component upgrade received : [Errno 256] No more mirrors to try. https://packages.grafana.com/oss
- Error in Plesk during the ClamAV update: downloadPatch: Can't apply patch
- Unable to update PHP dependencies via PHP Composer in Plesk: Support for composer 1 is deprecated
- Unable to provide Plesk support with server access via SSH access extension: can't initialize ip6tables table `filter'
- Advanced Monitoring on Plesk server does not show any data after update: Metric request error
- A domain secured with a Let's Encrypt certificate is marked as not secured in Plesk Advisor: The certificate is either self-signed or not vaild
Backup, Restore & Migration
- How to remove Plesk backup files and their logs
- Pre-migration warning when migrating from server with custom Apache modules: The following Apache modules are not installed
- Migration from 18.0.36 to 18.0.36 fails with error: backup.tar" failed: No such file or directory (2)
- Where are Plesk backup/restoration logs located?
- Error while performing a subscription re-sync: Failed to execute SQL query: Login failed for user 'sa'
- FTP backup functionality is not working after Plesk upgrade to Obsidian 18.0.33 version: Failed EPSV attempt. Disabling EPSV
Databases
- How to fix InnoDB corruption cases for the MySQL databases on Plesk for Linux?
- Unable to delete MS SQL database in Plesk: User does not have permission to alter database, the database does not exist, or the database is not in a state that allows access checks
- Unable to export MySQL dump for a domain in Plesk: insufficient privileges to SHOW CREATE
- A PHP-based website fails to open: Failed to connect to MySQL: Access denied for user 'jdoe'@'localhost' (using password: YES)
- MySQL service fails to start on a Plesk server: Table 'mysql.user' doesn't exist
- Unable to add external database server in Plesk: 1044 Access denied for user
Installation & Upgrade
- Error during Plesk upgrade to Obsidian 18.0.37: PHP Fatal error: Uncaught JMS\Serializer\Exception\RuntimeException: Could not decode JSON, syntax error - malformed JSON.
- Unable to update Plesk on CentOS 7 in Google Cloud platform: repomd.xml signature could not be verified for google-cloud-sdk
- sa-compile update fails on Plesk server with Plesk Email Security: dpkg: error processing package sa-compile (--configure)
- Plesk update to version 18.0.34 fails with message: Plesk database scheme was not upgraded completely
- Daily Maintanace scripts, Plesk update are stuck due to hanged /usr/libexec/urlgrabber-ext-down processes
- Unable the access Plesk after dist-upgrade: blank page is shown
- Unable to create/see mailboxes on Plesk with Smartermail: No HTTP resource was found that matches the request URI
- Mail service is not working after Plesk server restart: connect to 127.0.0.1:10024 Connection refused
- Cannot set up Plesk mail account in Outlook or Thunderbird for a domain behind Cloudflare: Unable to log in at server.
- Not possible to send or receive emails on a Plesk server: connect to 127.0.0.1[127.0.0.1]:10024: Connection refused
- Plesk server hosted in OVH SAS unable to send mail to Outlook or Hotmail recipients: Please contact your Internet service provider since part of their network is on our block list
- How to create subfolder for public folder in Plesk Premium Email?
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
- Unable to access the website with redirect: server IP address could not be found
- DNS zone of newly created subdomain is not syncronized with DigitalOcean via extension
Website Builder
- How to install Web Presence Builder 17.8.12 Standalone in Plesk for CentOS 8/Debian 10?
- 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