On Tue Oct 28, 2008 at 07:01:44AM -0700, Daniel Senderowicz wrote:
> Hi Robin,
>
> I just commented out the file "vncts" in /etc/xinetd.d and
> now works well. However I don't understand what is that file
> supposed to do in the overall context. Thank you very much
> for your help!
>
Glad it's working now. I'll try to explain what the problem was:
inetd (and it's more modern replacement xinetd) are central daemon
(server) processes designed to handle large numbers of infrequently-used
and/or transient services.
Each service defines a port and a command to run on connection, so when
any client connects on the port, the command is run and the client now
talks to the relevant server. Once the client disconnects, the server
exits again.
This is mainly used for services like telnet, FTP, finger, echo, daytime
(a lot of which aren't even used on most modern systems). These don't
need to maintain any data between connections, so can be quickly started
to deal with a connection, then shut down again, freeing up the memory
for other processes.
An additional benefit is that inetd/xinetd allow basic connection
filtering to be done centrally (e.g. limiting which IP addresses can
talk to a service) without needing a special setup for each individual
service.
Anyway, the vncts service that was defined on your system is obviously
intended for transient VNC terminal services usage - if you connect to
one of those screens via a VNC client, you'll get a server automatically
started and can work remotely. Once the client exits then the server
shuts down and all processes within it are killed. This can be useful
in some circumstances, allowing a number of people to share the same
server without needing to set up specific VNC servers, but for a single
user system it's usually preferable to run a single, persistent, VNC
server.
Anyway, you can check the xinetd manual page for further details of what
it does and how to configure it - if you don't use any of the services
it's providing then you might want to shut it down altogether.
Cheers,
Robin
--
___
( ' } | Robin Hill <[EMAIL PROTECTED]> |
/ / ) | Little Jim says .... |
// !! | "He fallen in de water !!" |
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