Domain Name System (DNS) is a service that provides the resolution of host names to IP addresses.

learn more… | top users | synonyms

1
vote
2answers
3k views

How can I update my dynamic DNS under OpenWRT?

I have an OpenWrt 10.03, and I need to update my dynamic DNS account (e.g., OpenDNS or DYNDNS) when my IP changes. How can I do this from the terminal?
2
votes
1answer
566 views

Short domain name to FQDN expansion

Is it possible to configure where the system will look for the machine if I enter just a short domain name? I work in a grid environment where the machines are many and spread across multiple ...
1
vote
1answer
2k views

Unable to start the 'named' service [closed]

Whenever I try to run the named service, I get the following even though my permissions and folder ownership are all fine: [root@f13 ~]# service named start Starting named: Error in named ...
2
votes
1answer
175 views

Do rndc keys expire after a year?

Yesterday, I noticed an error in a bind zone file, and after correcting it, I tried to restart bind9, but the service refused to stop, displaying this error: rndc: connect failed: 127.0.0.1#953: ...
1
vote
2answers
506 views

DNSSEC in the root zone? How to use it?

I'm using Fedora for desktop use and I: yum -y install caching-nameserver service named restart chkconfig --level 5 named on on it, and set the nameserver to 127.0.0.1. If I: dig google.com | grep ...
1
vote
2answers
1k views

BIND Server problem in Fedora

I am install the Bind Server in Fedora Linux.I configured the named.conf file.However, When I run "service named start" command,I am receive the following error. starting named: /usr/sbin/named: ...
2
votes
2answers
399 views

Working DNS-DHCP combo for LAN

Can anyone recommend a working DNS-DHCP combo for a small mixed-platform LAN? Preferably one where hosts can be assigned IP addresses and/or names with a web-GUI. The typical DHCP package on Linux ...
3
votes
3answers
1k views

Firefox and Thunderbird cannot resolve host names - anything else can

One night my firefox just started showing "Server not found" for all websites (i.e. "Firefox can't find the server at www.mozilla.com."). I noticed that it can find websites if make an entry in the ...
1
vote
2answers
762 views

OpenWrt ssh host identification with dyndns

If i ssh to my remote OpenWrt router ["via DynDNS"] I get the message @ WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED! @ Ok, i delete the old line in ~/.ssh/known_hosts, add the new one ...
1
vote
2answers
1k views

Name resolution issues in Ubuntu 10.04

I am having an error with name resolution that I am not able to figure out. The system is able to resolve names, say, www.google.com when using a graphical browser like chrome or firefox. But on the ...
15
votes
4answers
26k views

How to clear DNS cache on DD-WRT

How can I clear the DNS cache in DD-WRT on my router? DD-WRT uses the dnsmasq daemon.
1
vote
2answers
4k views

What is a valid hostname label?

I set up my hostname to a number, where running hostname gives: 6592 But when I run ping 6592, I get: connect: Invalid argument I checked the related Wikipedia page, and it does say that such a ...
2
votes
1answer
1k views

Attempting to update Amazon Route53 using a script, but domain is not being updated

I have several Amazon EC2 instances, running Ubuntu 10.04, with which I'd like to use Amazon's Route53. I setup a script as described in Shlomo Swidler's article, but I'm still missing something. ...
21
votes
6answers
11k views

Can I create override dns similar to writing in /etc/hosts without root access

I want to set a dns record that my browser will use, but I don't have root access, so I can't modify /etc/hosts. I need to do this for testing vhosts with apache, whose dns hasn't yet been set up. I ...
3
votes
4answers
2k views

DNS Troubleshoot. Campus domain does not resolve when using campus network

I am having a very odd DNS issue. I live on-campus and the university provides Internet access with my rent, but I can not get access to the university websites. I am hoping to get direction on how to ...
3
votes
5answers
3k views

Why do all my DNS queries resolve to 192.168.1.251?

All my queries on one machine on my network have suddenly started to resolve to 192.168.1.251. This machine was used as the DNS server by other machines, so I noticed it as soon as it started ...
5
votes
2answers
2k views

What file do I have to edit to make static DNS server in CentOS?

Almost every distro I know will wipe /etc/resolv.conf on reboot (I think DHCP does this) and thus the place to add static DHCP entries varies per distro. How do I add static DNS servers to a CentOS ...
2
votes
1answer
2k views

Can't reach DNS through wireless router

I've got a Ubuntu 10.04 laptop, and recently it's had some odd networking problems. It's on the home wireless router, supplied by the phone company, and has no problem talking to anything on the ...
4
votes
1answer
904 views

How can a Windows based DHCP server update DNS Server on Linux? [closed]

The updates to the zone is protected by the key (similar to: allow-update { key "rndc-key"; }).
7
votes
5answers
18k views

DNS queries not using nscd for caching

I'm trying to use nscd (Nameservices Cache Daemon) to cache DNS locally so I can stop using Bind to do it. I've gotten it started and ntpd seems to attempt to use it. But everything else for hosts ...