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  1. OpenShift Bugs
  2. OCPBUGS-18080

Custom DNS Lookup Issues in Pods

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      Description of problem:

      Unable to reach certain domains from Pods in a specific Node (xxxxxxx-xxxxxxxx-2.compute.internal). But the same Pod or any other Pod deployed in other Nodes can reach the domains just fine.
      
      The customer is using an EgressNetworkPolicy where certain domains are listed and allowed
      
      On the Node-level (xxxxxxx-xxxxxxxx-2.compute.internal) curl to the 3 domains above via URL and IP works just fine (See attached file)
      
      But on the Pod-level, curl doesn't work via URL or IP.. but the URL is resolvable as per nslookup
      

      Version-Release number of selected component (if applicable):

      4.11.42
      

      How reproducible:

       

      Steps to Reproduce:

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      2.
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      Actual results:

      See attached OHSS ticket and drive links.
      

      Expected results:

       

      Additional info:

       

       

            jtanenba@redhat.com Jacob Tanenbaum
            iamkirkbater Kirk Bater
            Zhanqi Zhao Zhanqi Zhao
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              Created:
              Updated:
              Resolved: