ping <hostname>

i installed LFS during the last week just to learn some linux. it worked
rather fine and was a lot of fun (and RTFM'ing).

my problem is, that name resolution doesnot work.

ping <ip-adress> works fine, ping <hostname> complains: unknown host:
www.wcm.at

i tried to install bind (nslookup/dig/host) and configured the
/etc/resolv.conf just as on the other linux-machine where name resolution
works

//////
cat resolv.conf

serach localdoman

nameserver 195.3.96.67
nameserver 195.3.96.68
///////

i can reach the DNS-Servers by pinging the ip-adress.

also "nslookup www.wcm.at" works fine.

ping, tracerout, lynx and everything i try gives me the message: unknown
host: <hostname>

does anyone know why this is and what i could do to fix it?

On Mon, 15 Sep 2003 16:23:17 +0200, Kamir Wolfgang
<(E-Mail Removed)> wrote:
> i installed LFS during the last week just to learn some linux. it worked
> rather fine and was a lot of fun (and RTFM'ing).
>
> my problem is, that name resolution doesnot work.
>
> ping <ip-adress> works fine, ping <hostname> complains: unknown host:
> www.wcm.at
>
> i tried to install bind (nslookup/dig/host) and configured the
> /etc/resolv.conf just as on the other linux-machine where name resolution
> works
>
> //////
> cat resolv.conf
>
> serach localdoman
search
>
> nameserver 195.3.96.67
> nameserver 195.3.96.68
> ///////
>
> i can reach the DNS-Servers by pinging the ip-adress.
>
> also "nslookup www.wcm.at" works fine.
>
> ping, tracerout, lynx and everything i try gives me the message: unknown
> host: <hostname>
>
> does anyone know why this is and what i could do to fix it?
>
What is in /etc/hosts? Does the first line look like this?
127.0.0.1 localhost

What is the output of "ifconfig" and "route -n"?

--
Commander Spiral Pyjama Pseudo-Rhinocerous Feline Thingamajig Bill Marcum
(the First)
Ozy and Millie Name Generator http://heifong.phase.org/omname.php

"Kamir Wolfgang" <(E-Mail Removed)> said:
>i installed LFS during the last week just to learn some linux. it worked
>rather fine and was a lot of fun (and RTFM'ing).
>
>my problem is, that name resolution doesnot work.
>
>ping <ip-adress> works fine, ping <hostname> complains: unknown host:
>www.wcm.at
>
>i tried to install bind (nslookup/dig/host) and configured the
>/etc/resolv.conf just as on the other linux-machine where name resolution
>works
....
>i can reach the DNS-Servers by pinging the ip-adress.
>
>also "nslookup www.wcm.at" works fine.

Could be problems with /etc/nsswitch.conf. "nslookup" will always do a DNS
lookup; the others will do as is configured in nsswitch.conf.
--
Wolf a.k.a. Juha Laiho Espoo, Finland
(GC 3.0) GIT d- s+: a C++ ULSH++++$ P++@ L+++ E- W+$@ N++ !K w !O !M V
PS(+) PE Y+ PGP(+) t- 5 !X R !tv b+ !DI D G e+ h---- r+++ y++++
"...cancel my subscription to the resurrection!" (Jim Morrison)

> ping <ip-adress> works fine, ping <hostname> complains: unknown host:
> www.wcm.at

by hostname here, do you mean actual hostname (FQDN) or windows computer
names ? if its a windows name, then you need to use ip or actual hostname.
alternatively, you can add the ip address and hostname to /etc/hosts

--
Gokul
http://pod.homelinux.net

no i mean not the local computernames in my lan... it's quite plain to me
that i need to put these into the hosts-file.. the problem i have concerns
"real" nameresolution with the nameservers located on the internet (the two
of my provider)

but thanks for your hint

Wolfgang

"Gokul" <(E-Mail Removed)> schrieb im Newsbeitrag
news:(E-Mail Removed)...
>
> > ping <ip-adress> works fine, ping <hostname> complains: unknown host:
> > www.wcm.at
>
> by hostname here, do you mean actual hostname (FQDN) or windows computer
> names ? if its a windows name, then you need to use ip or actual hostname.
> alternatively, you can add the ip address and hostname to /etc/hosts
>
> --
> Gokul
> http://pod.homelinux.net
>
>

Oh! It could be that there is actually no /etc/nsswitch.conf on my system
At least i didn't create it... (It is Linux From Scratch )

Unfortunately i can try it not until today evening because i'm at the office
and my system isn't running

But thank you for your advise, this could really be the solution

regards, wolfgang

"Juha Laiho" <(E-Mail Removed)> schrieb im Newsbeitrag
news:bk4q8g$dgg$(E-Mail Removed)-int...
> "Kamir Wolfgang" <(E-Mail Removed)> said:
> >i installed LFS during the last week just to learn some linux. it worked
> >rather fine and was a lot of fun (and RTFM'ing).
> >
> >my problem is, that name resolution doesnot work.
> >
> >ping <ip-adress> works fine, ping <hostname> complains: unknown host:
> >www.wcm.at
> >
> >i tried to install bind (nslookup/dig/host) and configured the
> >/etc/resolv.conf just as on the other linux-machine where name resolution
> >works
> ...
> >i can reach the DNS-Servers by pinging the ip-adress.
> >
> >also "nslookup www.wcm.at" works fine.
>
> Could be problems with /etc/nsswitch.conf. "nslookup" will always do a DNS
> lookup; the others will do as is configured in nsswitch.conf.
> --
> Wolf a.k.a. Juha Laiho Espoo, Finland
> (GC 3.0) GIT d- s+: a C++ ULSH++++$ P++@ L+++ E- W+$@ N++ !K w !O !M V
> PS(+) PE Y+ PGP(+) t- 5 !X R !tv b+ !DI D G e+ h---- r+++ y++++
> "...cancel my subscription to the resurrection!" (Jim Morrison)

"Kamir Wolfgang" <(E-Mail Removed)> wrote in news:1063634497.30586
@newsmaster-03.atnet.at:

>
> does anyone know why this is and what i could do to fix it?
>

Do yourself a favor, install 'strace' and see why the program
cannot resolve the host.

Me to think you are missing 'libnss_dns' and 'libresolv' libraries.


P.Krumins

Hello Guys!

The hint from Juha Laiho was a direct hit

in the file /etc/nsswitch.conf the line looked like
hosts: files
and i had to change this into
hosts: files dns

Now all programs will use name resolution instead of just looking into my
/etc/hosts file.

thank you all for your kind help!

regards, wolfgang