Technical Questions
Help articles related to Plesk migration, upgrades, databases ant etc.
Other
- How to connect to a Plesk server via RDP with available credentials
- How to subscribe on changes in Plesk Help Center articles / sections
- How to secure a Plesk server
- Session in Horde webmail client is terminated shortly after login: Your session has expired. Please login again
- CVE-2020-13166: myLittleAdmin vulnerability
- CVE-2020-13249: MariaDB Connector/C vulnerability
Plesk Service/Interface
- How to connect to a website in Plesk via FTP
- Notifications from Advanced Monitoring in Plesk: The bandwidth utilization status is critical!
- Notifications from Advanced Monitoring in Plesk: Memory usage status is critical!
- Notifications from Advanced Monitoring in Plesk: [Alerting] Partition "/" utilization
- Notifications from Advanced Monitoring in Plesk: The CPU usage status is critical!
- [FIXED BUG] On Plesk Obsidian for Linux server, error is shown in Repair Kit and output of "plesk repair db": Wrong admin password is found for PSA database server
Webserver
- How to secure a Plesk hostname on port 8443 with an SSL certificate (Let's Encrypt / other certificate authorities)
- NextCloud and Typo3 applications are not stable on Plesk PHP 7.2.32 and 7.3.20
- Unable to change nginx cache: invalid condition "$request_uri"
- [FIXED BUG] Plesk fails to generate web server configuration files: Argument 3 passed to Db_Table_Row_PhpSettings::getConfigurationText() must be of the type string
- Plesk domain served by CloudFlare shows 522 error Connection Timed Out
- NGINX shows warning: nginx: [warn] "ssl_stapling" ignored, issuer certificate not found for certificate
Applications & Extensions
- [FIXED BUG] mod_rewrite stopped working. All pages on WordPress sites show 404
- Server with Plesk Email Security no longer sends/receives emails: [127.0.0.1]:10024: Connection refused
- Unable to access the SSL/TLS certificate page: Reduce of empty array with no initial value
- Moodle install/update through Plesk fails: Non-zero exit status returned by script
- Unable to issue Let's Encrypt Certificate: During secondary validation: Invalid response. <title>Captcha</title>
- SpamAssassin configured in Plesk shows the messages in log: connect to spamd on ::1 failed, retrying (#1 of 3): Connection refused
Backup, Restore & Migration
- [FIXED BUG] Full Plesk backup is created instead of incremental one
- While the backup creation the email notification is sent to Plesk administrator: Unable to find archive metadata. The archive is not valid Plesk backup or has been created in an unsupported Plesk version
- [FIXED BUG] Migration from cPanel to Plesk fails: file '/etc/quota.conf' is not a text file
- [FIXED BUG] Unable to perform migration: Unable to find archive metadata. The archive is not valid Plesk backup or has been created in an unsupported Plesk version
- Unable to create remote backup, the local backup will be created: Part number must be an integer between 1 and 1000, inclusive
- Pre-migration check fails when migrating from cPanel to Plesk: Subscription 'example.com' does not exists on source server(s).
Databases
- An operation fails in Plesk: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry 'X' for key 'PRIMARY'
- How to back up/restore Plesk system databases
- Is there software alternatives for managing databases?
- Unable to export mysql database: Unable to backup database 'db' (Error code 21)
- Which MariaDB versions are supported by Plesk?
- [FIXED BUG] Cannot create MS SQL database A file activation error occurred. The physical file name '\ example.mdf' may be incorrect
Installation & Upgrade
- How to update Plesk Obsidian to the latest build
- How to install Plesk for Linux
- How to upgrade Plesk to the next release
- How to install an SSL certificate for a domain in Plesk (Let's Encrypt / other certificate authorities)
- [FIXED BUG] 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
- Unable to send or receive e-mail messages: Client host rejected: cannot find your hostname
- Plesk Premium Email: Unable to access webmail.example.com: Internal Server Error
- Comodo certificate installed for the mail server. Mail client shows certificate expired
- [FIXED BUG] Unable to send email via PHP: Rejecting message: system user uid='XXXX' is not allowed to send mail
- How to add an email address/domain/top-level domain to the server-wide blacklist
- [FIXED BUG] Unable to create a mailbox in Plesk: mailmng-outgoing failed: ERROR:__main__:NOT NULL constraint failed: mails.domain_id
DNS & Statistics
- Mail is received: No valid IP addresses found for sub.example.com
- CVE-2020-8616, CVE-2020-8617: BIND vulnerabilities
- Website hosted in Plesk shows Web Server's Default Page: Domain is resolved to the wrong IP address from the same server.
- [FIXED BUG] TXT record for _acme-challenge.example.com is not added automatically on Windows when Bind is used as DNS server
- Plesk Email Security: DNS caching is disabled! Please use a local DNS server to improve SPAM recognition via blocklists (for instance systemd-resolved)
- Plesk domain is not resolved from some countries: DNS_PROBE_FINISHED_NXDOMAIN
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
- Some emails from Web Presence Builder contact are not delivered
- [FIXED BUG] Web Presence Builder cannot restore a snapshot: Read error: Bad file descriptor
- How to create basic website design with Plesk