Hello,

Will it be possible to give each server subprocess its own IP address?

Will L4D use UDP 27015 as its default listen port?

I'm asking because I do not have control of our institution's firewall.  The 
necessary ports for TF2, CS:S, etc., are already open to a range of IPs we use 
for our game servers.  Just wondering if I will need to get additional ports 
opened up for this box.

    Thanks,
    Dave

----- Original Message -----
From: Chris Green <[EMAIL PROTECTED]>
Date: Wednesday, November 5, 2008 8:36 pm
Subject: [hlds_linux] l4d Dedicated server notes
To: "'[email protected]'" <[email protected]>

> Linux dedicated server changes for Left4Dead
> 
> There have been many changes, enhancements, and optimizations 
> with the
> dedicated server for Linux:
> 
> * All of the code is now being compiled with gcc 4.3.0 and glibc 
> 2.8-8
>   in order to take advantage of compiler fixes and optimization
>   enhancements. In order to run the l4d Linux dedicated 
> server, you
>   will need a system which can run binaries built against 
> this version
>   of glibc.
> 
> * As a performance enhancement, the dedicated server can now use the
>   hardware "RDTSC" timer instead of gettimeofday() for its 
> internal  timing, on systems which support it ( such 
> systems are identified by
>   having the "constant_tsc" flag set in /proc/cpuinfo ). 
> When the code
>   detects that the system has this, it will execute a 
> benchmark to
>   measure the actual rate of the hardware timer, and use 
> this for all
>   timing. If this causes trouble on a system, you can set the
>   environment variable "RDTSC_FREQUENCY" to "disabled".
> 
> * The Linux dedicated server is now capable of running multiple
>   server instances as sub-processes off of one parent 
> process. This
>   provides a memory savings (through sharing of read-only 
> data), a
>   speedup when starting multiple servers, and also enhances 
> server  stability by having the servers restart as new sub-
> processes after
>   each game is completed. This is controlled by the "-fork 
> n" option.
>   For instance, you can run "srcds_run -fork 5" to start up 
> 5 separate
>   server instances in this mode.
> 
> * When -fork mode is enabled, some options on the command line 
> can be
>   parametrized based upon the server instance, by typing 
> '##' on the
>   launching line. For instance, "-fork 10 -netconport 90##" would
>   cause the first server instance to use port 9001, the 
> second to use
>   9002, etc.
> 
> 
> * There is a new remote access feature which allows a server
>   administrator (or tool) to create a persistent connection 
> to a
>   running server, and to see its entire console output and 
> send it
>   commands. This feature is enabled by using the "-
> netconport" option
>   when launching srcds_i486. For instance, if a server is 
> started with
>   "-netconport 9000", someone with access to port 9000 of 
> the server
>   could type "telnet xxxx 9000" and view the console 
> output. This
>   feature is disabled by default, and should only be used 
> when an
>   appropriate firewall/tunnel is used to control access to this
>   port. Multiple clients can connect to the netconport of a 
> running  server at the same time.
> 
> * If the netconsole is enabled, and the option "-netconpassword xxx"
>   is set, the network console will not execute commands received
>   through the netconport until the command "PASS xxx" is entered.
> 
> 
> 
> 
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