On Mon, 18 Aug 2003, Michael MacIsaac wrote:

> Hi list,
>
> I often hear the suggestion to "turn off unneeded services". SuSE SLES-8
> seems to have a lot of services off, but there are probably more that are
> not needed. However, I'm wary of turning off any that are critical to
> Linux.  Will any of the following be a problem with the base functioning of
> a Linux image under z/VM?:
>
>    chkconfig atd off

On Red Hat Linux, no vendor procedures used atd, though I do.


>    chkconfig fbset off
I suspect that's to do frame buffers (video). Unless IBM's introduced
video hardware for the mainframe recently, you can remove the software.

For video hardware, think SVGA and similar.


>    chkconfig hotplug off
>    chkconfig hwscan off
>    chkconfig postfix off

postfix is your Mail Transport Agent. You need it to receive mail, and
possibly to send it. Likely, some system services send you mail - cron
for example.

>    chkconfig smbfs off
>    chkconfig xdm off

xdm is one of three graphic display managers that control graphic login.
If you want to use a GUI interface for all your work, you may want one
of these. Alternatives to XDM are GDM and KDM.

Note that you can use one of these even without video hardware: you can
get a login screen across the network.




--


Cheers
John.

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