Legacy Knowledge Base
Published Sep. 10, 2025

Unable to set a virtual host

Written By

István Gergely-Tárnoki

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Issue

  • We can't add/update our domain to our site's or instance's virtual host
  • We get the below error on the UI:
    Please enter a unique virtual host. Virtual hosts must be valid domain names.

Environment

  • Liferay Portal 6.2+
  • Liferay DXP 7.0+

Resolution

  • There are a few things that might cause the above error message:
    • Check your database's virtualhost table and see if there is already a virtual host with the same domain name
    • The domain name you've specified starts with http:// or https://
      • (e.g. http://www.test.com instead of www.test.com)
    • The domain name ends with a slash (/) character
      • (e.g. test.com/ instead of test.com)

Additional Information

 

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