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DNS doesn’t work on Plesk Amazon AWS EC2 Instance

The default Plesk firewall/security rule blocks UDP port 53 but allows TCP 53. To enable UDP port 53 (and hence get DNS working correctly) go to your EC2 Dashboard, click on Security Groups, click on the item relating to the Plesk instance (mine was called “Parallels Plesk Panel with PowerPack”) click on Inbound tab and then add a new “Custom UDP Rule” for port 53.

Published inLinux

One Comment

  1. Wow. I love you. Really. Hours of wasted time sitting here racking my brain. I even went as far as opening all TCP ports to no avail. No idea about the UDP port. THANK YOU!!!

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