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doc: correct and standardize instructions for disabling TCP servers 

The instructions to set the port to zero to disable a service has not
worked for several years: the effect of doing so is to start the service
on a port randomly selected by the bind(2) system call.

Update the documentation to reflect the new standard way of disabling
network services.

Change-Id: Ic5315a80f9956ea195f63e05d30d604a980bbc8f
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Reviewed-on: http://openocd.zylin.com/3638
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
This commit is contained in:
Peter A. Bigot 2016-08-10 16:58:07 -05:00 committed by Andreas Fritiofson
parent 9c5529786a
commit 6d00ab8732
1 changed files with 3 additions and 3 deletions
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doc/openocd.texi
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@ -2097,7 +2097,7 @@ only during configuration (before those ports are opened).
For reasons including security, you may wish to prevent remote
access using one or more of these ports.
In such cases, just specify the relevant port number as zero.
In such cases, just specify the relevant port number as "disabled".
If you disable all access through TCP/IP, you will need to
use the command line @option{-pipe} option.
@ -2140,7 +2140,7 @@ output from the Tcl engine.
Intended as a machine interface.
When not specified during the configuration stage,
the port @var{number} defaults to 6666.
When specified as "disabled", this service is not activated.
@end deffn
@deffn {Command} telnet_port [number]
@ -2149,7 +2149,7 @@ port on which to listen for incoming telnet connections.
This port is intended for interaction with one human through TCL commands.
When not specified during the configuration stage,
the port @var{number} defaults to 4444.
When specified as zero, this port is not activated.
When specified as "disabled", this service is not activated.
@end deffn
@anchor{gdbconfiguration}