While configuring proxy parameter on Red Hat Satellite GUI, getting error Value is invalid must be an array.

Environment

• Red Hat Satellite 6

Issue

• Unable to set the HTTP(S) proxy except hosts parameter on Red Hat Satellite GUI.
• Getting error Value is invalid: must be an array while saving the value for HTTP(S) proxy except hosts parameter on Red Hat Satellite GUI.

Resolution

• The hostnames must be enclosed in square brackets [], following the same format used when the array is defined.

  [satellite.example.com,capsule1.example.com,capsul2.example.com,host1.example.com]
  

  NOTE:Red Hat Satellite cannot whitelist an entire domain. Each hostname must be explicitly defined in the configuration.

Root Cause

• The error occurs because the HTTP(S) proxy except hosts parameter expects values to be provided in an array format. Specifying a hostname without the required array structure results in the error.

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