Domain Name System for computers, services, or any resource connected to the Internet. It translates domain names meaningful to humans into the numerical identifiers associated with networking equipment for the purpose of locating and addressing these devices worldwide.

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2
votes
1answer
439 views

Unwanted subdomain requests in the DNS query logs (BIND9)

I am running my own DNS and I am logging all the DNS lookups. Today, I realized that there are over 200 entries for unwanted subdomain queries in the log. Interestingly, these non-existent ...
1
vote
1answer
444 views

Pipe BIND9 logs to a shell.php script

I am trying to extract some data from BIND9's query log. I like to pipe the queries to a script first and then parse it, then log it. How do I do this? Please help. logging { channel simple_log ...
1
vote
1answer
710 views

How do I make a subdomain of a subdomain?

I have a server that hosts mydomain.com. Then I have a server that hosts subdomain1.mydomain.com. On the subdomain1.mydomain.com server, how do I make subdomains? For instance I want to create ...
2
votes
2answers
4k views

How do I install bind9 with dlz dlopen drivers included?

I'm currently installing samba4 as for a -extra own chosen- schoolproject. I'm following the HOWTO installation from their website. Now, I'm stuck at getting my dns working. I've installed bind9 ...
1
vote
2answers
183 views

Version to Version Upgrades and bugs — DNS errors

I've been using Ubuntu (64-bit) for the past three versions (10.10, 11.04, now 11.10). For the most part, things are fine. I have issues with the 64-bit version, but who doesn't. My question is ...
2
votes
2answers
706 views

Configuring bind9 views so I can have DNS services?

I want to configure bind9 using the Ubuntu terminal to have the DNS resolve a local name, not a domain name. For example, if I type in Nicole it will resolve my IP address in a local network fashion. ...
16
votes
2answers
9k views

nslookup finds ip, but ping doesnt

I know this looks like all the other "can ping via ip but not dns" questions, but those didnt really help me at all. Also, having hosts files in all machines is not doable as this server will ...
0
votes
1answer
1k views

DNS Server not responding

i have dns server i have configure it from Ubuntu bind9 help i have A record of ubuntu-server.local i am unable to ping it from ubuntu machine i am able to ping it from windows 7 machine ...
0
votes
1answer
404 views

I want to host webserver befind Wi-fi router which is using Static IP.

Before purchasing Dedicated server I want to hone my skills. Therefore I want to install Ubuntu on my desktop which is connected to Wi-fi router. I am using static IP provided by my ISP. the cable ...
1
vote
0answers
359 views

Unable to Find Wireless Networks? [closed]

After Loading Ubuntu 11.10 of the Internet on a Dual Boot option alongside Windows XP. It cannot find the wireless networks within range when the modem is within a Meter of it. When i click the ...
2
votes
1answer
5k views

How to setup DNS Server on Local network

Im having a Ubuntu 11.10 Desktop system,how can I configure the BIND server to resolve as the following: I should be able to use Google's Public DNS for the internet www.rootserver.com should ...
1
vote
1answer
584 views

How do we add DNS servers to our VPN network definitions?

I just set up a VPN connection to my workplace, but it fail s to connect. Our protocol for setting up VPN on Windows clients requires we specify DNS servers that are inside our corporate network. I ...
2
votes
4answers
4k views

How can I configure my server so that my domain points to it?

I have bought a domain name (without hosting), and at home I have a static ip address on Ubuntu server 11.04. How can I redirect users to my web server at home? What configuration needs to be done?
0
votes
3answers
543 views

google.com and youtube.com not working

Trying to access google.com or youtube.com in ANY browser (FF, chrome, ephiphany, w3m) does not work ("could not find www.google.com"). I can ping both services with no problem. Are there DNS ...
3
votes
2answers
365 views

If I am behind a router, how do I edit DNS resolution?

Should I edit resolv.conf in my machine, or leave it 192.168.1.x and change something in the router? If in the router, how?
0
votes
1answer
710 views

Block and unblock access to certain domains

How can I block complete access of my computer to certain domains but be able to switch it on whenever I want to? That is, I want that by default whenever my browser or any other application hits a ...
5
votes
2answers
6k views

Why is ddclient giving me an “Invalid IP” error when trying to update dynamic DNS?

I am having a really hard time getting ddclient (which updates OpenDNS with my current IP address) to work. I have it running as a daemon, but it never succeeds in updating my IP address at openDNS. ...
1
vote
1answer
3k views

avahi daemon constantly needs restarting

I have Ubuntu 11 running on a Thinkpad W520. Things work great, but not avahi-daemon. It seems that my laptop becomes invisible (ssh user@hostname.local can't find the laptop) to other computers on ...
0
votes
1answer
350 views

Connection to DNS fails after few successful connections

I connect to the internet with a static IP. Connection is fine. After few successful connections to the DNS, the DNS becomes unreachable (PING still works using IP addresses). Restarting the ethernet ...
2
votes
1answer
3k views

When I try to add repositories, why are ubuntu's keyservers timing-out?

Something is rendering receiving keys from keyserver.ubuntu.com impossible and I'm not even sure where to begin in trying to resolve this. As an example, we'll use the Spotify linux app found here: ...
6
votes
1answer
693 views

Protecting against (infinitely) slow DNS servers

Recently, one of my ISPs DNS servers got into trouble. To quote the support desk personnel it "wasn't completely down so connections were just infinitely slow". My application was down for a couple of ...
4
votes
0answers
342 views

How to change the DNS name server? [duplicate]

Possible Duplicate: What is the proper way to change the DNS IP? How to change the DNS NameServer in Ubuntu 11.04, When I typed node.ws on browser url-bar it redirected me to ...
0
votes
1answer
232 views

How do I extract DNS IPs using a script?

I want to extract the ip addresses and the hostnames from the dns server list (100 ips) and put it in a file. What would be the best command to use? I tried using cut but due to varying lengths of ...
1
vote
0answers
826 views

resolvconf dnsmasq issue - system startup leaves blank dnsmasq resolv.conf file [closed]

On system start, /var/run/dnsmasq/resolv.conf file ends up being blank. I had expected the resolvconf package to update it with the info from /etc/network/interfaces (dns-nameservers, dns-search). ...
10
votes
10answers
5k views

Can't browse the internet nor ping a host, but dig works

I am not able to browse any websites. Please take a look at the following error: karthick@karthick:~$ ping www.google.com ping: unknown host www.google.com Update ...
1
vote
1answer
2k views

how to configure two Nic for dns & resolv.conf &how to eth0 DNS forwards to eth1 & gw

I have two NICs. Here's my /etc/network/interfaces: auto eth0 iface eth0 inet dhcp //for internet auto eth1 iface eth1 inet static //for lan address 20.X.X.X.X netmask 255.255.255.0 broadcast ...
1
vote
1answer
120 views

Do I need to setup a “zone” for every domain name that is visible to the outside world?

I have a quick question. I just setup DNS on one of our Ubuntu servers using Bind9. Now my question is do we need to setup a "zone" for every domain name that is visible to the outside world? Or is ...
3
votes
1answer
13k views

How to redirect a URL to a custom IP address?

I have an Ubuntu machine that I'm using as my home Internet router. It uses a USB mobile broadband modem as its Internet connection, and shares this with another router (via the router's "Internet" ...
3
votes
1answer
3k views

How do I setup an authoritative name server with tinydns?

I want to use tinydns to serve up DNS records for my domain name. What is a minimal example of how to set this up in Ubuntu? You can assume that I've already set the name server for the domain to ...
1
vote
3answers
2k views

DNS server not responding

From time to times I have to reboot my Ubuntu 11.04 remote desktop. Once it up and I run Cromium browser with many tabs (20 for example) dns server doesn't respond anymore. At beginning I suspected my ...
6
votes
4answers
10k views

Adding additional DNS search domains when using DHCP

How can I add additional DNS search domains to a network connection which is configured using DHCP? At work, we have several sub-domains (test.example.com, dev.example.com, etc), and I've grown tired ...
1
vote
2answers
408 views

Wireless cannot ping router after five minutes inactivity

As the title says when I don't use the net for ~5 mins I cannot resolve hostnames, either via browser or using apt-cache or similiar. Wget will return the first line and just timeout. I need to ...
5
votes
2answers
2k views

How do I configure my caching nameserver to validate DNSSEC?

Since the root of the DNS tree has been signed, how do I change my caching DNS server to start validating DNSSEC signatures?
4
votes
2answers
282 views

My computer stops seeing the other computers on my network

I'm running Ubuntu 11.04. Sometimes my computer stops seeing the names of the other computers on my network. So I can no longer log into another computer by typing the hosting name e.g. ssh ...
4
votes
1answer
2k views

How can I setup dhcpd (dynamic DNS)?

I have a Ubuntu Server 11.04 firewall/gateway set up and I'm wondering how I can configure isc-dhcp-server to update bind9 to resolve hostnames in the network. Here is my setup: 3 computers ...
6
votes
4answers
2k views

Why do I get redirected to a weird Chinese site for non-existent websites?

If I go to a web address that doesn't exist such as http://testestewcsdijncijfkdmkdfkddmkmdmdsexsecsecfvrgtoejwfej.com/ I get landed on a strange Chinese page like this: This happens for all web ...
4
votes
2answers
1k views

How can I host my own website

I have bought a domain lets say it example.com, I also own an Ubuntu 10.04 machine which I would like to use it to serve my personal website. I have deployed the website on my local machine and its ...
3
votes
3answers
4k views

How to configure OpenDns

I would like to configure my ubuntu and get the benefits of configuring OpenDNS on my computer is a home computer, with dynamic IP ¿ What packages I need to install ? ¿ what configuration is ...
6
votes
1answer
656 views

Does dnscache really improve the surfing speed?

I have installed dnscache (dnscache-run) from Ubuntu repositories and I have increased the CACHESIZE and DATALIMIT to 256MB (268435456). Today I have tested it with one domain: google.es. I have ...
0
votes
1answer
694 views

Run DNS service on registered domain for global name resolution

I have a domain name mydomain.net purchased/registered for one of the cloud server(ubuntu) and its pointing to the server(nslookup). I have installed DNS(bind) service with the domain mydomain.net. ...
2
votes
2answers
1k views

using DNS lookup in chroot postfix

I'm trying to set up a postfix set up on my client machines. All machines should use a central ldap directory for common postfix (e.g. aliases, etc). But since postfix runs in chroot postfix is unable ...
0
votes
1answer
3k views

Troubleshooting wireless network connection: DNS not working

I have a wireless router that assigns IPs using DHCP. My laptop (Acer Aspire 1 110L running Ubuntu 10.10) connects to the wireless network, but DNS is not working. I've tried to trouble shoot the ...
2
votes
1answer
848 views

Domain name isn't assigned from DHCP when booting from Live CD

I downloaded the ubuntu 10.10 ISO image for AMD64. When i start the ISO ubuntu gets an IP address from my DHCP server. NetworkManager updates /etc/resolv.conf according to the DNS config provided by ...
6
votes
0answers
8k views

Network Manager discards changes to /etc/resolv.conf on boot [duplicate]

Possible Duplicate: How To Auto Add To /etc/resolv.conf? I wrote interfaces entries manually because of weird behaviour from network manager/indicator: $ cat /etc/network/interfaces auto ...
12
votes
3answers
24k views

Prefer A (IPv4) DNS lookups before AAAA(IPv6) lookups

In notice my newly installed Ubuntu 10.10 always does an AAAA DNS lookup before A record lookups. Is there any way I can configure the system to do A lookups first ? (While various browsers and other ...
15
votes
7answers
10k views

Why does my resolv.conf file get regenerated every time?

My /etc/resolv.conf file gets regenerated every time, making me loose Google DNS servers when I reconnect my 3G modem. For changing the DNS settings, I looked at ...
8
votes
1answer
18k views

Why does my name resolution hit the DNS even with a hosts file entry?

I'm running Ubuntu 10.04.2 LTS Desktop. Being a web developer, naturally I created a "me.com" in my /etc/hosts file. Unfortunately, my name resolution is going out to the DNS before first checking my ...
2
votes
2answers
1k views

Hostname on intranet

I have a test server that is running Ubuntu Server in a windows network. Networking is configured as follows auto eth0 iface eth0 inet dhcp hostname ca the command cat /etc/hostname returns ca. ...
15
votes
5answers
10k views

Why can't my machine resolve local windows hostnames?

When I ping any local windows hostname from my Ubuntu machine I get "unable to resolve host", but when I ping from a windows machine it works fine. Why would this be? OS: Ubuntu 10.04 Samba & ...
1
vote
3answers
3k views

DNS server configuration is changed automatically

The default DNS server was running too slowly, so I changed the configuration by adding a nameserver. /etc/resolv.conf : nameserver 202.102.192.68 nameserver 210.45.240.99 domain ***edu.cn search ...