no resolving

Hello

for a 'Linux From Scratch' I need some hints where to look for mistakes
in this system.

The answer of 'nslookup michael.zuhause.de' is:

Server: 192.168.1.14
Address: 192.168.1.14#53

Name: michael.zuhause.de
Address: 192.168.1.12

Neither 'ping' nor 'ftp michael.zuhause.de' find the address but 'ping
192.168.1.12' and
'ftp 192.168.1.12' are successfull.

Michael

On 10 Jul 2006, michanux <(E-Mail Removed)> wrote:
> for a 'Linux From Scratch' I need some hints where to look for mistakes
> in this system.
>
> The answer of 'nslookup michael.zuhause.de' is:
>
> Server: 192.168.1.14
> Address: 192.168.1.14#53
>
> Name: michael.zuhause.de
> Address: 192.168.1.12
>
> Neither 'ping' nor 'ftp michael.zuhause.de' find the address but 'ping
> 192.168.1.12' and
> 'ftp 192.168.1.12' are successfull.

See if michael.zuhause.de is in your /etc/hosts, because applications
typically use gethostbyname(), which checks hosts before trying DNS
(depending upon "order" setting in /etc/hosts.conf, or maybe the "hosts"
setting in /etc/nsswitch.conf). "nslookup" only checks DNS (not your
hosts file), so it would not know if your hosts file conflicts.

On 10 Jul 2006, in the Usenet newsgroup comp.os.linux.networking, in article
<(E-Mail Removed). com>, michanux wrote:

>The answer of 'nslookup michael.zuhause.de' is:

working OK

>Neither 'ping' nor 'ftp michael.zuhause.de' find the address but 'ping
>192.168.1.12' and
>'ftp 192.168.1.12' are successfull.

Three possible causes:

[compton ~]$ cat /etc/host.conf
order hosts,bind
multi on
[compton ~]$ grep host /etc/nsswitch.conf
hosts: files nis dns
[compton ~]$

(Explanation: DNS tools like 'dig' 'dnsquery', 'host' and 'nslookup' ignore
those two files. /etc/host.conf is the older file, used by libc based
applications. /etc/nsswitch.conf is the more modern file, used by glibc2.)

It's also possible though far less likely, that there is an entry for that
hostname either in /etc/hosts, or (in the above example) in the NIS database
if you are running yp - that lists the hostname but no address, or lists some
non-accurate address.

Old guy