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

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4answers
25k 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.
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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
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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
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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
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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
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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
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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
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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
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1answer
897 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
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5answers
17k 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 ...