Re: DNS not working in Fedora 14

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On Sat, 2011-01-01 at 12:59 -0600, Robert G. (Doc) Savage wrote:
> On Sat, 2011-01-01 at 16:51 +0000, Dick Holland wrote:
> > Doc, here's /etc/nsswitch.conf:
> > 
> > #
> > # /etc/nsswitch.conf
> > #
> > # An example Name Service Switch config file. This file should be
> > # sorted with the most-used services at the beginning.
> > #
> > # The entry '[NOTFOUND=return]' means that the search for an
> > # entry should stop if the search in the previous entry turned
> > # up nothing. Note that if the search failed due to some other reason
> > # (like no NIS server responding) then the search continues with the
> > # next entry.
> > #
> > # Valid entries include:
> > #
> > #	nisplus			Use NIS+ (NIS version 3)
> > #	nis			Use NIS (NIS version 2), also called YP
> > #	dns			Use DNS (Domain Name Service)
> > #	files			Use the local files
> > #	db			Use the local database (.db) files
> > #	compat			Use NIS on compat mode
> > #	hesiod			Use Hesiod for user lookups
> > #	[NOTFOUND=return]	Stop searching if not found so far
> > #
> > 
> > # To use db, put the "db" in front of "files" for entries you want to be
> > # looked up first in the databases
> > #
> > # Example:
> > #passwd:    db files nisplus nis
> > #shadow:    db files nisplus nis
> > #group:     db files nisplus nis
> > 
> > passwd:     files
> > shadow:     files
> > group:      files
> > 
> > #hosts:     db files nisplus nis dns
> > hosts:      files dns
> 
> This is your resolution order -- local files (/etc/hosts) first, then
> DNS. This is the default setting, so it's probably not your problem.
> 
> > 
> > # Example - obey only what nisplus tells us...
> > #services:   nisplus [NOTFOUND=return] files
> > #networks:   nisplus [NOTFOUND=return] files
> > #protocols:  nisplus [NOTFOUND=return] files
> > #rpc:        nisplus [NOTFOUND=return] files
> > #ethers:     nisplus [NOTFOUND=return] files
> > #netmasks:   nisplus [NOTFOUND=return] files     
> > 
> > bootparams: nisplus [NOTFOUND=return] files
> > 
> > ethers:     files
> > netmasks:   files
> > networks:   files
> > protocols:  files
> > rpc:        files
> > services:   files
> > 
> > netgroup:   nisplus
> > 
> > publickey:  nisplus
> > 
> > automount:  files nisplus
> > aliases:    files nisplus
> > 
> > ------------------------------------------------------------------
> > 
> > 
> > Thanks for your amazingly quick response!
> 
> I'm kinda amazed I was up at that hour on New Year's Day! :-)
> 
> >From /etc/resolv.conf in your first message I see your DNS search order
> is:
> 
>         nameserver 192.168.181.254
>         nameserver 194.168.4.100
>         nameserver 194.117.134.19
> 
> and your /etc/hosts contains:
> 
>         192.168.181.122 cobalt.xegetix.com      cobalt  # Added by NetworkManager
> 
> >From this I'd say you're running a local DNS service on your local
> gateway router. Was that your intent? If not, reconfigure NetworkManager
> to remove that entry (and regain access to that third external DNS
> server).
> 

Yes, that's correct. I use a local DNS server as I've other boxes on the
LAN with static IP addresses. I have tried removing the local DNS server
and using all three of the ISP's DNS servers; the results,
unfortunately, were exactly the same.

So I'm completely stumped. It must be something I'm doing wrong - it
seems to me to be improbable that F14 does this out of the box for
others without getting fixed pretty quickly!

BTW, the box uses a pretty standard Gigabyte motherboard with an onboard
Realtek gigabit ethernet port, so I'm sure it's not the hardware's
fault. The fingers all point to me, don't they?

-- 
Dick Holland

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