Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Other
- How to monitor usage of system resources in a period of time using atop?
- After update to Plesk 18.0.35 disk space usage increases drastically or disk is already full: /var/lib/fail2ban/ taking all the space
- Anacron notifications are received after Plesk Obsidian update 34: cannot open directory: Permission denied
- CVE-2021-3156: vulnerability in Sudo before 1.9.5p2
- Unable to connect to the Plesk server via SFTP: Received unexpected end-of-file from SFTP server
- Does Plesk support AlmaLinux as an alternative to CentOS 8?
Plesk Service/Interface
- The domain log files are showing binary content in the Plesk GUI
- MySQL fails to start when a Plesk server lacks disk space: SQLSTATE[HY000] No space left on device 500 Plesk\Exception\Database
- Repair Kit in Plesk shows: The following domains are assigned to already removed IP addresses
- "Presence Builder", "Website Copying" and "Web Users" buttons are missing on the Websites & Domains page in Plesk when dynamic list is selected
- After pressing "Restart Server" button the warning is shown: Failed to fetch
- Unable to access Plesk: syntax error unexpected '\' (T_NS_SEPARATOR) expecting function (T_FUNCTION) or const (T_CONST)
Webserver
- All websites/webmails on Plesk for Linux server show error 502 every hour or even constantly
- How to enable Nginx caching in Plesk?
- How to run Composer with Plesk PHP
- Websites on PHP-FPM are unavailable or loading slowly: "server reached max_children setting" OR "pool seems busy"
- CVE-2021-23017: Nginx
- Apache fails to start on a Plesk server: SSL routines:SSL_CTX_set_cipher_list:no cipher match
Applications & Extensions
- Advanced Monitoring on Plesk server does not show any data after update: Metric request error
- A domain that has SSL is marked as not secured in Plesk Advisor: The certificate is either self-signed or not vaild
- Unable to deploy NextCloud on a domain: Unable to download file: nextcloud-21.0.2.zip
- Unable to activate Modsecurity with Atomic Standard rules: modsecurity_ctl failed: Atomic Updater Modified (AUM) Installer (v6.0.0)
- Error while cloning a domain in WordPress Toolkit: Argument #1 ($data) must be of type string, array given
- How does the Plesk Firewall CLI tool update and restore configuration?
Backup, Restore & Migration
- Where are Plesk backup/restoration logs located?
- FTP backup functionality is not working after Plesk upgrade to Obsidian 18.0.33 version: Failed EPSV attempt. Disabling EPSV
- Customers do not see their parts of server backup in Plesk if it is saved in remote storage (FTP, Google Drive, S3)
- 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'
- Pre-migration check shows warning in Plesk: Migration of error documents is not supported on Windows since Plesk 18.0.31
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
- Unable to add external database server in Plesk: 1044 Access denied for user
- 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
Installation & Upgrade
- 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
- SpamAssassin fails to update on a Plesk server: no 'mirrors.sought.rules.yerp.org' record found, channel failed
- Plesk Obsidian upgrade on Windows get's stuck or fails: this operation returned because the timeout period expired
- After November 30th, 2020, updating system packages on Plesk server with CentOS 6 fails: Cannot find a valid baseurl for repo: base
- Unable to send emails using Plesk local mail server: Connection timed out or connection refused. (#4.4.1)
- Unable to create/see mailboxes on Plesk with Smartermail: No HTTP resource was found that matches the request URI
- 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
- CVE-2020-8616, CVE-2020-8617: BIND vulnerabilities
- Unable to access the website with redirect: server IP address could not be found
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