• Please be aware: Kaspersky Anti-Virus has been deprecated
    With the upgrade to Plesk Obsidian 18.0.64, "Kaspersky Anti-Virus for Servers" will be automatically removed from the servers it is installed on. We recommend that you migrate to Sophos Anti-Virus for Servers.
  • The Horde webmail has been deprecated. Its complete removal is scheduled for April 2025. For details and recommended actions, see the Feature and Deprecation Plan.
  • We’re working on enhancing the Monitoring feature in Plesk, and we could really use your expertise! If you’re open to sharing your experiences with server and website monitoring or providing feedback, we’d love to have a one-hour online meeting with you.

Issue Random 502 Bad Gateway and ERR_SSL_PROTOCOL_ERROR

Stuzzi

New Pleskian
Hi! Since yesterday I get random 502 Bad Gateway and ERR_SSL_PROTOCOL_ERROR when loading the page. After a refresh it is gone but comes back randomly.
 
I think that SSL Protocol and SSL Cipher Suite are not properly configurated on your server. Try to update Apache and Nginx cipher suits using PCI Compliance Resolver script:

# plesk sbin pci_compliance_resolver --enable apache
# plesk sbin pci_compliance_resolver --enable nginx
 
Back
Top