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Configuring Discovery - HTTP Client

HTTP Client provides a set of configuration options needed for accessing external resources via the HTTP(S) protocol. This includes configuration of a forward proxy, authentication on an ArcGIS Server and Portal or HTTPS settings. 

NOTE: If an ArcGIS Server requires Windows Authentication, you will need to configure authentication on the HTTP Client in order to be able to index services on that server.

To configure HTTP Client, go to Manage Voyager > Discovery and select HTTP Client. In the HTTP Client page, enter the following information:


These settings determine which SSL certificates Voyager accepts. There are three options:

  • Default_Settings 
  • Trust_Any_SSL
    • Allows certificates from any third-party SSL Socket Factory
  • Trust_Self_Signed_SSL
    • Allows self-signed certificates from any third-party SSL Socket Factory

SSL settings can be applied for all services or can be specific to certain URLs. To add a SSL configuration specific to a given service URL, enter the server hostname, select the Trust and Skip verification options, and click Add to add the new settings to Voyager.



  • Choose whether or not to use the System proxy settings. If you do not use the System settings you can explicitly set up a proxy host or IP address and a proxy port number. You can specify the hosts that will bypass the proxy (No proxy for).
  • You can also choose Use automatic proxy configuration and specify the URL with the proxy configuration script (usually .pac script).


Choose an authentication scheme to support:

  • Support Client Certificate 
    • This option requires a Private Key (PKCS#12) and a Password.
  • Support NTLM 
    • This option will restrict security to the NTLM protocol and not the stronger Kerberos protocol
  • Support Negotiate 
    • This option selects either Kerberos or NTLM, and defaults to NTLM if Kerberos is unavailable.


Enter the URL for the Server.


Select a value for the Authentication scheme:

  • Any - will use any available scheme
  • Basic - uses unencrypted username/password
  • NTLM - uses the NTLM authentication scheme
  • Negotiate - uses the either the Kerberos or NTLM authentication scheme


  • For Kerberos schemes, the Realm is created by an Administrator, and is roughly equivalent to a Windows Workgroup.  The Realm defines all of the resources that Kerberos manages.  Both your host and the target server must be in the same Realm.
  • For NTLM, there is no equivalent to the Kerberos Realm.  Instead, it uses the domain name of the server in place of the Realm.

Username and Password 

  • Check Support NTLM or Support Negotiate to support NTLM/Negotiate authentication schemas.
  • Check Use System Credentials (Windows NTLM/Negotiate) to use the system's settings instead of your own login credentials
  • When you are done with configuration, click Add to add the server to Voyager.


Use this field to test your HTTP Client configuration and verify if Voyager is able to access external web services.




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