Login or Register to Ask a Question and Join Our Community


Linux

Switching from one DNS to another

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Operating Systems Linux Switching from one DNS to another
# 1  
Old 06-17-2008
Switching from one DNS to another
Hi all,

we have running some linux servers with sles9 and we have some problems with our dns servers. Sometimes they don't like to work. However, is there a parameter to enable faster switching between two ore more dns servers?

Thx for your help in front

Regards

frank
# 2  
Old 06-17-2008
add more DNS servers in /etc/resolv.conf file. They will be probed in order of appearance in case of failure. As in :
# the ones you're using primary :
10.101.1.5
10.101.1.6
# and then the backups :
192.168.2.1
192.168.2.2
# As a side note - it's recommended by RFC that DNS servers should not reside in the same subnet, in case of network failure.
# 3  
Old 06-17-2008
Quote:
Originally Posted by sysgate
add more DNS servers in /etc/resolv.conf file. They will be probed in order of appearance in case of failure. As in :
# the ones you're using primary :
10.101.1.5
10.101.1.6
# and then the backups :
192.168.2.1
192.168.2.2
# As a side note - it's recommended by RFC that DNS servers should not reside in the same subnet, in case of network failure.
thx, but this is what we have. i need to know, is there an option if one of the primary dns server fails, that the switching to the next dns could make faster?
# 4  
Old 06-18-2008
You want to make it faster ? Consider implementing DNS load balancing solution, there are few available on the net, I believe.
# 5  
Old 07-29-2008
check the man page for resolv.conf

It has entries in there for "timeout" and "attempts"

adding these should help your dns clients roll to the next server more quickly if the primary goes down.
# 6  
Old 08-14-2008
ortsvorsteher
The DNS timeout value is normally controlled by the client, thus an HA solution would be your route. Nothing you do on the server side (as far as configuration) can change that, and as far as ordering them? Well it will try each attempt, then fail and go to the next server, each time.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Solaris

DNS client added to DNS server but not working

Hi, We have built a new server (RHEL VM)and added that IP/hostname into dns zone configs file on DNS server (Solaris 10). Reloaded the configuration using and added nameserver into resolv.conf on client. But when I am trying nslookup, its not getting resolved. The nameserver is not able to... (8 Replies)
Discussion started by: snchaudhari2
8 Replies

2. Programming

Switching over to C++

Hi, We've been using a perl script to extract datas from several logs to generate a report. I've been asked to rewrite the code in C++. I want to know if it is wise to have a code in C++ and will it be more faster than Perl? (23 Replies)
Discussion started by: Ribosome
23 Replies

3. UNIX for Dummies Questions & Answers

Help with switching the users

Hello. I am using a instance of Centos 5.5, I currently have two users root and zetaris, but when I try to switch the user from root su zetaris or su - zetaris the next command line shows bash-3.2$ and stops there. Further there is no response from instance. Please help me with this problem. I... (3 Replies)
Discussion started by: nnani
3 Replies

4. Red Hat

DHCP & DNS - Clients get IP but don't register in DNS

I am trying to setup a CentOS 6.2 server that will be doing 3 things DHCP, DNS & Samba for a very small office (2 users). The idea being this will replace a very old Win2k server. The users are all windows based clients so only the server will be Linux based. I've installed CentOS 6.2 with... (4 Replies)
Discussion started by: FireBIade
4 Replies

5. Solaris

The switching in the different AP's

HI, I am using the windows 2003 server R2 in there we are using the putty as to access the different AP's now from the primary AP i want to login to several different AP's using a script what the script will do is :- input a text file in which list of different ap's and the corresponding... (0 Replies)
Discussion started by: amiglani
0 Replies

6. Red Hat

DNS A-Record point to another DNS

Hi, I have a question on how to point the DNS server-1's A-record to second DNS server, which is DNS server-2. So, the computer can access other domain which only listed in the DNS server-2. The scenario is as follow: http://img689.imageshack.us/img689/6333/12234.png How to configure this... (4 Replies)
Discussion started by: Paris Heng
4 Replies

7. OS X (Apple)

vt switching

greetings, i hope this hasn't been covered previously. has anyone heard of a .kext or daemon that would allow linux or (open)solaris-like vt switching? googling didn't help much.. i know os x allows a '>console' login from loginwindow.app, but i'm mainly interested in this because there are... (0 Replies)
Discussion started by: bamdad
0 Replies

8. UNIX for Advanced & Expert Users

DNS server choice: Windows DNS vs Linux BIND

I'd like to get some opnions on choosing DNS server: Windows DNS vs Linux BIND comparrsion: 1) managment, easy of use 2) Security 3) features 4) peformance 5) ?? I personally prefer Windows DNS server for management, it supports GUI and command line. But I am not sure about security... (2 Replies)
Discussion started by: honglus
2 Replies

9. Shell Programming and Scripting

Switching between two users

Can any one tell me : How we can switch between two users without prompting for the password. (In the SHELL SCRIPT can we fetch the USERID and PASSWORD from a specified file, without using SUDO command)? (2 Replies)
Discussion started by: deepusunil
2 Replies

10. Solaris

Solaris DNS Client For Microsoft DNS Server

hey guys, how to add soalris box as a microsoft DNS Client ? and how to register in the microsoft DNS ?? i managed to query from the DNS server after adding /etc/resolve.conf and editing /etc/nsswitch.conf but i need to register the soalris server (dns Client) into Microsoft DNS automatically.... (3 Replies)
Discussion started by: mduweik
3 Replies
Login or Register to Ask a Question