Article ID: 114302, created on Jul 6, 2012, last review on Aug 23, 2015

  • Applies to:
  • Operations Automation 5.4


Error is observed in Control Panel when trying to browse APS Catalog:

Error: Unexpected catalog service error. couldn't connect to host


Most likely OA cannot access APS catalog server. This may happen due to several reasons:

  1. Privacy Proxy (privoxy) service is not running
  2. The domain name is not resolved to correct IP address from Privacy Proxy host
  3. OA Management Node cannot connect to Privacy Proxy
  4. Privacy Proxy is not able to connect to APS Catalog via port 80


Verify that Privacy Proxy (privoxy) is up and running:

  1. Find the host where PrivacyProxy service is installed:

    113462 How to find host(s) where particular service is installed

  2. Log in to the host and verify it is up and running:

    [root@cp ~]# service privoxy status
    privoxy (pid 13367) is running...`
  3. Make sure that domain is resolved to a correct IP address and accessible via port 80:

    [root@cp ~]# ping
    PING ( 56(84) bytes of data.
    64 bytes from ( icmp_seq=1 ttl=44 time=189 ms
    64 bytes from ( icmp_seq=2 ttl=44 time=189 ms
    [root@cp ~]# wget -SO- --spider
    Spider mode enabled. Check if remote file exists.
    --2012-07-13 10:01:02--
    Connecting to||:80... connected.
    HTTP request sent, awaiting response...
    HTTP/1.1 200 OK
    Server: nginx/0.8.55
     Date: Fri, 13 Jul 2012 03:02:40 GMT
     Content-Type: text/html; charset=UTF-8
     Connection: keep-alive
     Vary: Accept,Cookie
     Cache-Control: must-revalidate, no-transform, max-age=0
     Length: unspecified [text/html]
     Remote file exists and could contain further links, but recursion is disabled -- not retrieving.
  4. Verify that OA Management Node is able to connect to Privacy Proxy host:

    [root@poacore ~]# telnet 8008
    Connected to
    Escape character is '^]'.

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