Re: More networking fun

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Author: Lee Einer
Date:  
To: plug-discuss
Subject: Re: More networking fun


Craig White wrote:

>On Fri, 2005-02-04 at 21:20 -0700, Bryce C wrote:
>
>
>>On Fri, 04 Feb 2005 20:36:53 -0700, Lee Einer <> wrote:
>>
>>
>>>If I haven't made my appreciation clear, let me take this opportunity to
>>>say THANKS, Craig, for patiently helping me out with my networking
>>>questions.
>>>
>>>Ever the one to continue taking advantage, I have one more question-
>>>
>>>I found once I got it all together and place an entry in my /etc/fstab
>>>file so the network directory would mount on my laptop at startup, that
>>>it causes my laptop to hang for quite awhile on reboot. I decided that
>>>since I will be needing to access this directory only occasionally for
>>>backup purposes at present, I did not want it to automount at boot, but
>>>would rather do it manually. But not too manually. I want to manage it
>>>with a shell script which I can invoke by clicking a desktop icon when
>>>needed.
>>>
>>>Writing the script was no biggie, nor was making it executable or
>>>creating the desktop icon. The hitch in the giddyup is that the mount
>>>command must be run as root, and whereas that is no problem if invoking
>>>the script from a terminal by its pathname, I have no idea how to set it
>>>up so that I get a prompt for root password when running the script with
>>>an icon. Putting "su" into the script is no good, it seems, as the su
>>>command must be run from a terminal, and Linux is fetishistic enough in
>>>its security measures that it ignores attempts to suid a shell script.
>>>
>>>Any ideas? I have googled relentlessly, and while I found a few
>>>suggestions online, none of them proved viable in this circumstance.
>>>
>>>
>
>
>
>>See fstab options "noauto" and "user" (or "users")
>>noauto = do not automount entry at boot. This will allow you to keep
>>the line in fstab for easy and quick mounting.
>>user = allow non-root user to mount. This is the only user (except for
>>the superuser, root) that can umount the volume)
>>users = same as above, except any user, not just the one to mount it,
>>may umount it.
>>With that in mind, keep the original entry adding "noauto" and one of
>>the user[s]. Your desktop shortcut only needs to execute "mount
>>/path/to/mountpoint"
>>
>>
>----
>I like this solution best. Jeremy was solving issue with script. This
>solves issue of mounting as user.
>
>Perhaps a little thought to 'hang at startup' is in order. Two reasons
>come to mind:
>- /etc/hosts in Mandrakebox is wrong and when Mepisbox tries to connect,
>Mandrakebox looks in /etc/hosts and doesn't match Mepisbox to the ip
>address it is using, so it then tries to figure out who Mepisbox is by
>doing a dns query and I would bet that /etc/resolv.conf is using
>external name server from ISP which takes a while to check and of
>course, external name server is of no help so Mandrakebox finally
>decides, OK, I can't verify computer but allows connection anyway (hence
>the delay)
>or
>- Firewall on Mandrakebox is blocking stuff...
>doing a search on internet, it appears that you should have tcp & udp
>open for both ports 2049 and 111 - you probably want to make one more adjustment to your firewall.
>


There is no firewall on the Mandrakebox. Syslog entries corresponding
with the hang complain "NSF Warning: Mount version older than kernel"
and "portmap: server localhost not responding, time out." The partition
after a minute or so and allows the boot to continue, so it is not a
biggie, I just don't need the delay there every time I boot.

The "noauto" option is a good one. I also found out whilst dinking
around that if you ever want to set up an icon to either run a shell
script in a terminal, and/or run it under a different user (including
root) you can right click on the icon, select properties, click the
applications tab, and select advanced options. It gives the options
there to run the script in a terminal and/or as a different user. If you
select a different user you will be prompted for the password when you
click on the icon.

This is probably boring and obvious, but it was news to me.

>
>Craig
>
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--


Lee Einer
Dos Manos Jewelry
http://www.dosmanosjewelry.com



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