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LUA Exception inbound and outbound

Created: 30 Sep 2013 • Updated: 30 Sep 2013 | 5 comments
D@ry1's picture
This issue has been solved. See solution.

Hey guys,

Are there any exception needed for Liveupdate Administrator other than this:

We still cannot update sucessfully even after defining this 3 on the firewall. Is this 3 links still the links when recieving the downloads?  It try to ping one of them and I recieved a link from their third party server at akamai domain. please help me to have all the exceptions we need INBOUND and OUTBOUND.


Operating Systems:

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James007's picture

Make sure that the firewall allows the LiveUpdate executable to connect to the Internet through the correct ports and that the firewall allows connections to the correct domains. Read your firewall's documentation or contact the manufacturer to find out how to confirm these settings.

  • LiveUpdate connects over TCP ports 80 (HTTP), 21 (FTP) and 443 (HTTPS).
  • The file that connects to the Internet is LuComServer_*_*.exe in LiveUpdate 2.5 and later and Lucomserver.exe in LiveUpdate 2.0 and earlier.
  • The default folder for this file is C:\Program Files\Symantec\LiveUpdate.
  • LiveUpdate connects via HTTP to the domains,, and
  • If a connection fails, LiveUpdate tries to connect to one of the other listed domains. The listed domains may change because of server maintenance.
  • If LiveUpdate cannot make an HTTP connection, LiveUpdate connects via FTP to
How to determine whether your firewall is blocking LiveUpdate
Article:TECH139451 | Created: 2010-09-09 | Updated: 2011-08-26 | Article URL
pete_4u2002's picture

yes those are the one for the content download. if you type the URL in browser it will redirect to

  • LiveUpdate connects via HTTP to the domains, and

check this link

D@ry1's picture

Thanks for this, we forgot to exclude on our firewall.I hope that was the reason for this and I'll post again once tested.

thanks again,

Rafeeq's picture

Only those are needed. Liveupdates are hosted on Akami, URL will resolve to the IP automatically and there is no Static IP for it.

Check if its been blocked by Firewall.

Mithun Sanghavi's picture


Installing LiveUpdate Administrator (LUA) and Symantec Endpoint Protection Manager (SEPM) on the same physical computer is not supported, nor recommended. This includes installing them to different virtual machines on the same physical computer.

Check this Article:

LiveUpdate Administrator 2.x and Symantec Endpoint Protection Manager on the same computer

Secondly, I would also request you to check these Articles:

A Helpful LiveUpdate Administrator 2.x Analogy

How Big are Current Symantec Endpoint Protection Definitions?

Managing LiveUpdate Administrator 2.x Space Usage

LiveUpdate Administrator 2.x Server Connection Recommendations

Hope that helps!!

Mithun Sanghavi
Associate Security Architect


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