NetworkManager

Karl Auer kauer at biplane.com.au
Mon Oct 6 23:31:25 UTC 2008


On Mon, 2008-10-06 at 10:57 -0300, Derek Broughton wrote:
> > Well, it may be more semantics, but dhclient, apart from being the
> > *source* of (some of) the details, certainly has nothing to do with
> > storing them in any configuration files. NetworkManager, on the other
> > hand, does. 
> 
> Yes, dhclient does and no, NM doesn't.  

The truth is out there!

This is what I did: Left-click on NM, select "manual config", add a
search domain, close. Result - resolv.conf has the new domain in it.
dhclient was not involved.

> Those aren't even NetworkManager's dialog boxes!  When you select "manual
> configuration" in NM, it takes you _out_ of NM.

When I select an option in NetworkManager and it opens a dialogue called
"Network Settings", I reckon it's fair enough to call that "Network
Manager", but I take your point. Technically not NM.

> OK, I don't know where that is saved, BUT IT"S NOTHING TO DO WITH NETWORK
> MANAGER!

I do know where it's saved (at least the search domains) - it is saved
in /etc/resolv.conf. Try it.

> > BUT: The new search list *did* get written into /etc/resolv.conf!
> 
> And THAT is dhclient.

No, it was NOT dhclient. dhclient had not yet been triggered. This was
done solely within the "Network Settings" dialogue, without requesting a
reconnect. When dhclient *did* get triggered, then it did overwrite the
file, as you describe. I.e., both the "Network Settings" dialogue AND
dhclient will modify resolv.conf.

>   And yet again, I point out to you that if you have an
> NM managed interface, "networking restart" won't/can't and still shouldn't
> affect it.

No argument there. You're quite right, and I said so a couple of emails
ago :-)

Regards, K.

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Karl Auer (kauer at biplane.com.au)                   +61-2-64957160 (h)
http://www.biplane.com.au/~kauer/                  +61-428-957160 (mob)

GPG fingerprint: DD23 0DF3 2260 3060 7FEC 5CA8 1AF6 D9E3 CFEE 6B28

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