6 Replies Latest reply: Nov 11, 2010 10:33 PM by raimattern
mike.habermeier Level 1 (5 points)
Hallo to all,

I read throw the internet and found that 10.6.4 should fix a bug with SUS and
Proxy Servers. I am sitting behind a firewall with my Mac OS X Server and i can not connect
to the Apple Servers.

I get the following errors when I try to connect the SUS Servers.
"<Error>: Unable to retrieve catalog(s) from the Apple server"

The Network Settings are all ok and i can surf the web without any problems on that machine.

Any other ideas to fix this problem?

Thanx in advance.

MacPro, Mac OS X (10.5)
  • mike.habermeier Level 1 (5 points)
    Sorry. I am of course sitting behind a firewall. But this is not the problem.

    The Problem is the Proxy. Is it possible that the problem is not apples fault.

    Maybe I have to talk with the proxy guy ??

  • Michael Nossek Level 1 (0 points)
    Hello Mike,
    I had the same problem, I think because our Proxy is not using Port 8080.
    I think SUS expects the proxy to use this port.

    If you also use a different port, maybe this helps you too:

    Stop SUS
    Backup /System/Library/LaunchDeamons/com.apple.swupdate.sync.plist

    insert the following into com.apple.swupdate.sync.plist


    Of course you have to change the ip address and port according to your setup.

    Restart SUS and give it some time to find all the updates.

    Hope this helps,
    best regards,
  • mike.habermeier Level 1 (5 points)
    Hi Michael,

    thank you for your information and your help.
    But my proxy has firewall port 8080.
    This is not the problem.

    Proxy Port is the following with name and

    should i make an entry in com.apple.swupdate.sync.plist
    and how can i make this entry ??

    thanx for your help.
  • Michael Nossek Level 1 (0 points)
    Hello Mike,
    I don't think that it'll work as long as your Proxy requires Name and Password for authorization. Can you get access to the Internet for your Server through the proxy without Name and Password?
    Best regards,
  • mike.habermeier Level 1 (5 points)
    Hi Michael.

    NO. The philosophy of this company is that you must use
    a proxy with name and password....

    Thanx for your help.
  • raimattern Level 1 (95 points)


    Authenticated proxy servers are not supported by the synchronization module, which means updates will not be mirrored by the server. While the synchronization module may work with non-authenticated and transparent proxy servers, Apple recommends that the Software Update server have direct access to the public Software Update servers listed above.

    Mac OS X Server v10.6: Software Update Service may not use proxies defined by proxy auto-config (PAC) files