Welcome to Plesk Support
Promoted articles
- System updates fail to be installed on Plesk server with Ubuntu 24.04 OS and Imunify installed: The following signatures were invalid: 9EE467641C635726A184D64B8C55A6628608CB71 (untrusted public key algorithm: dsa1024)
- How to secure a Plesk server
- How to monitor usage of system resources in a period of time using atop
- How to diagnose a DoS/DDoS attack and find websites under attack on a Plesk server
- Installing Grafana extension on Plesk server with Ubuntu 24.04 fails: The following signatures were invalid: 8BADC1A02FC9C07FB8C20EC0BD11A6AA914BDF7E (untrusted public key algorithm: dsa1024)
- Plesk update on Debian/Ubuntu fails: dpkg was interrupted, you must manually run 'dpkg --configure -a' to correct the problem
- Plesk update completes with a Warning: Information on some packages might not be actual: inconsistencies were detected in the system's package manager database
- How to perform dist-upgrade procedure on Linux server with Plesk?
- CVE-2025-49113 Vulnerability in Roundcube on Plesk servers
- An IP address of a Plesk mail server got blacklisted. How to troubleshoot?
Featured Resources
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Plesk DocumentationPlesk Documentation and Release Notes to fully experience the power of Plesk
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Video TutorialsNot the most avid reader out there? Watch the latest how-to videos on our YouTube channel
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Plesk Lifecycle PolicyTo assist our customers, we provide a clear lifecycle and end-of-life (EOL) policy
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Plesk UniversityInsightful courses to guide any novice towards becoming an expert.Check out our comprehensive training courses and get the most out of Plesk’s key features
Call Us
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US/Canada+1 855 777 3680Support in English is available 24x7x365
Germany+49 221 98256068Support in German is available Mon-Fri 9am-9pm CET -
Japan+81 036 75 74 533Support in Japanese is available Mon-Fri 10am-6pm JST
Spain+34 932 20 19 68Support in Spanish is available Mon-Fri 9am-9pm CET
Phone and e-mail support is available in English, Russian, Spanish, German, Portuguese and Japanese languages. Please choose the corresponding number to call or use your preferred language. You will be required to provide opened ticket ID in order to connect to support representative.