dnsdomainname and ls question

pdw_hu · 01-04-2007, 07:21 AM

Hi!

First: when i type dnsdomainname i get "dnsdomainname: Unknown server error" or "dnsdomainname: Unknown host" when i change the search line in /etc/resolv.conf.
Anyone any ideas?

/etc/hosts:
127.0.0.1 localhost
192.168.0.140 skogen.no skogen

/etc/host.conf
order hosts,bind
multi o

Second: I don't know what i did, but up until now when i did ls -a i got the hidden files (in alphabetical order) first, then the normal ones. Now i get something like this:
aaa
.aaa
bbb
ccc
.ddd
ddd

Anyone any idea on what can toggle this?

Thanks!

onebuck · 01-04-2007, 07:30 AM

Quote:

Originally Posted by pdw_hu

Hi!

First: when i type dnsdomainname i get "dnsdomainname: Unknown server error" or "dnsdomainname: Unknown host" when i change the search line in /etc/resolv.conf.
Anyone any ideas?

/etc/hosts:
127.0.0.1 localhost
192.168.0.140 skogen.no skogen

/etc/host.conf
order hosts,bind
multi o

Thanks!

Hi,

What does your /etc/resolv.conf show? Generally the search line would be for the local domain. You can search other domains/servers but be aware that the network can/will be busy thus a slow response for the search. Do a 'man resolv.conf' to get the information.

pdw_hu · 01-04-2007, 02:22 PM

/etc/resolv.conf

search no
nameserver 194.149.0.157
nameserver 194.149.0.156

EDIT: Well, tho i don't really get the picture about this, since I'm not the member of any .no domain, skogen is just my hostname, i tried changing it to something that actually exists: ath.cx (which i use for my dyndns settings) and not it works correctly.

onebuck · 01-04-2007, 10:21 PM

Quote:

Originally Posted by pdw_hu

/etc/resolv.conf

search no
nameserver 194.149.0.157
nameserver 194.149.0.156

EDIT: Well, tho i don't really get the picture about this, since I'm not the member of any .no domain, skogen is just my hostname, i tried changing it to something that actually exists: ath.cx (which i use for my dyndns settings) and not it works correctly.

Hi,

You really need to 'man resolv.conf'. From the man (1) resolv.conf;

Code:

search       Search list for host-name lookup.  The search list  is  normally
              determined  from  the local domain name; by default, it contains
              only the local domain name.  This may be changed by listing  the
              desired  domain  search  path  following the search keyword with
              spaces or tabs separating the names.  Most resolver queries will
              be  attempted  using  each  component of the search path in turn
              until a match is found.  Note that this process may be slow  and
              will  generate  a  lot of network traffic if the servers for the
              listed domains are not local, and that queries will time out  if
              no server is available for one of the domains.

              The search list is currently limited to six domains with a total
              of 256 characters.

You are telling the resolver to search domain 'no'.

pdw_hu · 01-05-2007, 06:26 AM

Yes I do understand that. Question is, why would I want to (need to) search any domains? (apart from the reason that otherwise dnsdomainname reports errors)
I only need the nameservers, for hostname lookup.
The slackbook entry on /etc/resolv.conf cleared up a bit on the file usage, yet i still don't know why it's important.

onebuck · 01-05-2007, 07:28 AM

Quote:

Originally Posted by pdw_hu

Yes I do understand that. Question is, why would I want to (need to) search any domains? (apart from the reason that otherwise dnsdomainname reports errors)
I only need the nameservers, for hostname lookup.
The slackbook entry on /etc/resolv.conf cleared up a bit on the file usage, yet i still don't know why it's important.

Hi,

The importance is that this allows you to choose a domain to look for DNS and speed up the search. If you read the 'man' page, you will see that if no domain is given then the resolver will look at the local machine.

READ THE 'MAN'!