Half-Life 2 Deathmatch and firewall

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Algomeysa2 - 25 Feb 2006 14:03 GMT

I use Zonealarm as my firewall.

I can play HALF-LIFE 2 with it turned on.

But the other night, for the first time, I tried running the dedicated
server over the Internet, via Steam, so that some buddies could join in on a
game.

I could see the server when I refreshed the list, but they were unable to
see it until I disabled ZoneAlarm.

I'd already approved the Half-Life 2 dedicated server for use over the
internet.... but it seems it wasn't visible to them until I took down the
firewall.

Any ideas on how I can run the server and keep my firewall intact?

I'd prefer not to be unprotected while running the server.

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KCB - 25 Feb 2006 15:27 GMT

>I use Zonealarm as my firewall.
>
[quoted text clipped - 14 lines]
>
> I'd prefer not to be unprotected while running the server.

According to some posts I've seen on this subject, you have to re-allow HL2
exe every time there is an update for it through Steam. Try re-allowing it
in ZA, then start your server again.

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Algomeysa2 - 26 Feb 2006 05:22 GMT

>> According to some posts I've seen on this subject, you have to re-allow
>> HL2
> exe every time there is an update for it through Steam. Try re-allowing
> it in ZA, then start your server again.

Thanks for the reply. This seemed like a good plan, but I reallowed it for
Steam, HL2, and the SRCDS.exe in ZoneAlarm, and the result seems the same;
others on Steam can't see my HL2 server.

I'm wondering if HL2 makes use of some other windows service.

Again, for anyone reading this who has suggestions; using ZoneAlarm for a
firewall, I can play HL2 Deathmatch fine as a player, but when I try to run
the HL2 dedicated server, although I can then see it on the list when I'm in
as a player, others cannot.

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KCB - 26 Feb 2006 05:32 GMT

>>> According to some posts I've seen on this subject, you have to re-allow
>>> HL2
[quoted text clipped - 11 lines]
> run the HL2 dedicated server, although I can then see it on the list when
> I'm in as a player, others cannot.

Look at this from steampowered.com, maybe it will help:
http://tinyurl.com/jwops

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McGrandpa - 26 Feb 2006 21:54 GMT

In Zone Alarm, you may have to enable specific ports for the server to work.
McG.

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Peter [AGHL] - 27 Feb 2006 08:49 GMT

> In Zone Alarm, you may have to enable specific ports for the server to work.

The recommendation from Valve is to throw ZA out of the window :)
Btw is possible to see in ZoneAlarm which ports is blocked?
One could use some trial and error in order to get everything up and
running?

list of ports for various applications
http://www.practicallynetworked.com/sharing/app_port_list.htm

>From support.steampowered.com:

-----------------------------------------------
Question
Which ports must be open in order to use Steam?

Answer
Your network must be configured to allow Steam access to the following
ports:

UDP 1200 (used for friends service)
UDP 27000 to 27015 inclusive
TCP 27020 to 27050 inclusive

Computers running Dedicated Servers need these ports open:

UDP: 27015 and 27020 (default HLDS, SRCDS and HLTV port)
TCP: 27015 (SRCDS Rcon port)

If your server uses a different hostport then you will need to adjust
the above accordingly.

For help on port forwarding for your Router, please consult this
excellent website: http://www.portforward.com.

For assistance with your Firewall you will need to go to the support
site for your particular Firewall.

NOTE: Windows XP SP1 firewall does not require any specific
configuration changes for Steam Clients to work, but for Source
Dedicated Servers you must open TCP Port 27015 (or whichever port your
server is using) for RCON to work!

HTH/Peter

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