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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0
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2answers
52 views

Cannot access Google services

I cannot access any Google services such as Google.com or GMail from my Ubuntu 14.04. It's not an ISP issue, because I can access Google services using my smartphone using the same wifi connection ...
0
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0answers
10 views

static ip address in ubuntu 14.04TLC does not work

If you are reading this you are probably banging your head against a wall because your linux box is not resolving dns requests. It might appear to be hanging. You do not need to change ...
0
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0answers
14 views

why do all bad hostnames resolve to 198.105.254.23?

I'm running 14.04 on a desktop and laptop connected to a DSL router and am unable to get any of the internal hostnames to resolve correctly. When I dig desktopname: ; <<>> DiG ...
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0answers
30 views

No network access

I have already asked but I'm still getting no where and I cannot for the life of me understand what is happening. The previous question is here: No network access until I ping the gateway New info is ...
0
votes
1answer
14 views

Ubuntu MAAS DNS not forwarding request

I am trying out MAAS but I am having trouble getting the node to reach the internet. This is my setup: 3 physical machine, with 1 of them having two network cards acting as gateway, cluster ...
0
votes
1answer
15 views

Benchmarking DNS queries

I've recently switched to a router that allows me to set the network's DNS resolution to an internal server. Because of that, I'm playing around with a few DNS caching techniques (like bind9, pdnsd, ...
0
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0answers
11 views

Local DNS server 127.0.1.1 fails often

This problem happens only at my workplace and only with my laptop, not my colleagues'. The problem is that DNS resolutions fail often. Sites won't open, git pushes won't execute, and i have to ...
0
votes
1answer
19 views

How to configure Ubuntu to use all nameservers detected by dnsmasq?

I am having trouble resolving DNS names on an internal VPN network, even though dnsmasq successfully detects nameservers on the VPN. The following is relevant output from /var/log/syslog: ...
6
votes
3answers
291 views

Internet conection problem when updating Ubuntu 12.04 to 14.04 Server

Upgraded my server's software from Ubuntu 12.04 to Ubuntu 14.04 and now the server cannot access the internet. I can ping devices on my LAN, including my modem. When I try to ping any site on the ...
2
votes
0answers
193 views

Ubuntu 14.01 LTS can't access some websites

Something is wrong with Ubuntu Kernel and Windows DHCP,DNS Server. First i will explain my problem in few words and then ill post all my configurations. My ubuntu computer is behind a all-in-one ...
1
vote
3answers
253 views

why does the “host” and “nslokup” command show the wrong IP?

On my Ubuntu 12.4 these work fine: $ hostname my-machine-XX ping `hostname` ping my-machine-xx (192.168.0.69) icmp_req=1 ttk=64 time=0.043 ms But host and nslookup return the wrong IP address: $ ...
0
votes
3answers
32 views

Wireless connects but cannot go to any web site; windows works fine

Ubu 14.04.1 x64 Broadcom wireless adapter I came to my home office this morning and connected to the wireless network there, which I've done in the past without issue (but I was on 12.04 then) but ...
0
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0answers
15 views

hosting website with ubuntu server, is SilverStripe CMS compatible?

I am seeking to host a website on my computer using Ubuntu Server 12.04, I made a website in SilverStripe (CMS), I already copy the whole project in Ubuntu using WinSCP, import the database in ...
29
votes
3answers
27k views

How do I get resolvconf to regenerate resolv.conf after I change /etc/network/interfaces?

After updating /etc/networking/interfaces with something very similar to below, how do I get /etc/resolv.conf to update? I tried (as root) resolver -u, service networking restart but they didn't ...
1
vote
1answer
31 views

dns not resolving

I upgraded to ubuntu 14.04 and DNS no longer resolves. I've got a static IP in /etc/network/interfaces with dns-nameservers and dns-search lines. My resolv.conf file appears to be the correct ...
0
votes
3answers
6k views

Why would 127.0.0.1 in resolv.conf cause problems in DNS resolution?

[update and update II: see my awkward and proper solutions at the end of the question, based on one of the answers] I have an extremely slow DNS lookup when my resolv.conf file includes the 127.0.0.1 ...
0
votes
1answer
32 views

Global DNS change

can someone help me change my DNS server globally without having to do it manually thru network manager for every connection I have. I want to use OpenDNS, whether its at home, uni, wifi hotspot, ...
12
votes
1answer
75k views

How do I configure my DNS settings in Ubuntu server?

According to this page it appears to be simple. However, /etc/bind does not exist on the default installation of Ubuntu 12.04.3 LTS server. So, without installing any further software, how can ...
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votes
2answers
47 views

Setting a Static Ip on Ubuntu

I'm struggling with setting my static ip, nothing seems to work. When I enter my interfaces, it says (by default): # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback ...
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0answers
15 views

Routing internet, resources and other network traffic through two NIC

Say you have two NIC cards and want two different subnets on each card but one gateway to the internet: eth0 192.168.1.1 netmask 255.255.255.0 gw 192.168.1.1 (DHCP and DNS Services) eth0 ...
0
votes
0answers
22 views

Configure Bind9 to search local domain for localhosts first

First a little background.(skip this if your in a hurry) This is a network in a small shop. There is a mix of clients on this network. There are PC's running various versions of windows and linux as ...
0
votes
0answers
15 views

Server with two DHCP NICs: How to define whose nameserver to use?

I have a Ubuntu 14.04 server with two NICs, both get their configuration via DHCP. eth0 is connected to the internet, eth1 is connected to an internal subnet. I want that server to always use the ...
0
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0answers
20 views

all external requests/ping returns gateway as destination IP

"ping www.google.com" returns PING www.google.com (192.168.1.1) 56(84) bytes of data. and returns no response, obviously. "ping www.yahoo.com" returns PING www.yahoo.com (192.168.1.1) 56(84) ...
15
votes
5answers
9k 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 & ...
0
votes
2answers
3k views

No internet connection (DNS server address is Router address)

My internet connection in Ubuntu 13.10 doesn't work. I can use IP addresses to open websites but not URLs. The DNS server that I connect to is the IP address of my Router. When I connect to the VPN of ...
0
votes
0answers
15 views

Recommended way to create a Dynamic DNS service

I am trying to find web resources and recommendations on how to build a dynamic DNS service using ubuntu server. Any assistance would be greatly appreciated.
0
votes
1answer
28 views

Problem with BIND9

I have been fighting with this problem for a long time... For some unknown reason for me, some addresses seem to don't resolve, when I try dig www.google.com.br @localhost it returns me: ; ...
1
vote
1answer
47 views

What DNS server is bind using?

I installed Bind9 in 14.04.1 and made no config changes, I did not touch any files in /etc. This means my laptop is a caching DNS server. My questions are: where is bind getting it's DNS? What ...
1
vote
1answer
33 views

The server cant resolve host names

Please help with the following problem. Server is running under Ubuntu 14.04 server 32x. IP tables: INPUT DROP [0:0] :FORWARD DROP [0:0] :OUTPUT ACCEPT [0:0] -A INPUT -p icmp -j ACCEPT ...
1
vote
2answers
33 views

Failure to fetch http://somesite.com could not resolve somesite.com

I am changing my Unbuntu server from dhcp to static ip address. I haved added the following to the /etc/network/interfaces auto eth0 iface eth0 inet static address 120.120.120.120 netmask ...
0
votes
0answers
17 views

Problem With Multiple website

I have Statc IP on my DSL. install bind9 and create ns1 , ns2 as Name Server, I set nameserves for main domain (www.dast1.ir) , and it come up correct. no problem. but I am going to confige another ...
0
votes
2answers
127 views

DNS issues with my ubuntu 14.04

I just switched to Ubuntu 14.0.4 from Windows 7 using dual boot mode. I am connecting to my office's network using wireless wlan0. I am experiencing issues when trying to ssh to access several Linux ...
1
vote
1answer
179 views

Fixing resolv.conf from Comcast Meddling

So I'm trying to get Ruby on Rails set-up on my development machine (with a fresh install of ubuntu 14.04). Everything is going well until I get this lovely message from the terminal: $ gem install ...
0
votes
0answers
40 views

which DNS is answering to “www”

Today, by mistake, I run this command ping www on a virtual machine running a guest Ubuntu 14.04 under Windows 7 host. The ping response is one of my server outside the network where I work, let's ...
2
votes
0answers
50 views

Understanding ssh - apparent IP address: dynamic vs local port forwarding

I have ddwrt on my router back home and I'm playing with ssh on my laptop from a remote location to better understand ssh. My router has port 5000 listening for incoming ssh which it port forwards to ...
0
votes
1answer
59 views

Connected to wifi,But no internet

I am using ubuntu 13.10(64 bit) with 8GB ram and core i5 processor. Recently my service provider created a new wifi connection(name starting with AP) and gave me address,netmask and gateway ip to be ...
1
vote
0answers
42 views

dns-nameserver entries are ignored after 127.x.x.x

I'm trying to configure a static eth0 in a 1404 vps (lxc container). My interface config is auto eth0 iface eth0 inet static address 192.168.1.1 netmask 255.255.0.0 gateway 192.168.10.10 ...
3
votes
1answer
566 views

Using Ubuntu 14.04 as router with iptables, clients can't go online. Probably DNS issue, iptables setting needed

CORRECTION 3: SOLVED! I needed to add the the official DNS server of my departement's VLAN as DNS to the clients. I've read through a large number of posts about iptables issues when using Linux as ...
1
vote
0answers
60 views

Both named and dnsmasq serving DNS on port 53?

Is this considered normal for Ubuntu 14.04 ? netstat -tulpn shows that both bind9 (named) and dnsmasq serve on port 53: Active Internet connections (only servers) Proto Recv-Q Send-Q Local Address ...
0
votes
0answers
36 views

cannot ping external addresses

I'm installing Ubuntu 14.0.4, I have edited my /etc/network/interfaces added a route with: up route add -net 10.X.X.X netmask 255.255.255.0 gw 10.X.X.1 my /etc/hosts and then when I open up my ...
1
vote
3answers
974 views

Slow DNS lookup after upgrading to 14.04

After upgrading my Kubuntu to 14.04 from 12.04, I got extremely slow DNS lookup in Firefox and Thunderbird. I have checked the communications with Wireshark. Launching e.g. http://vs.hu in Firefox ...
-2
votes
2answers
807 views

override dns nameserver

i wish to set higher priority for my dns nameservers, or override the ones that are being set by the dhcp server. no matter which approach i took, nslookup never displays the right dns nameserver. ...
3
votes
1answer
29k views

How to Disable External DNS recursion?

I know that to disable recursive queries in BIND, I need add the following lines to the options section of /etc/bind/named.conf.options allow-transfer {"none";}; allow-recursion {"none";}; recursion ...
1
vote
1answer
79 views

How to (re)configure my internet connection? (DNS resolving failed)

A couple of days ago I was working with ipython notebook and it opens me a page in my web browser (Google Chrome) and I was able to work with the notebook (zero problems with my internet). Then, I ...
0
votes
4answers
97 views

serving multiple websites over a home DSL line

I'm a complete noob at running my own server, and I want to install 3 different sites to be served from my Mythbuntu 14.04 system at home. What I want to do is not for actual public access though, but ...
0
votes
1answer
27 views

Messed with DNS, now does not connect to Internet

So I was trying to fix this reverse DNS issue: $ dig HOSTNAME.DOMAIN.com 1.2.3.4 #example $ dig -x 1.2.3.4 OTHERHOSTNAME.OTHERDOMAIN.com I was blindly following online ...
0
votes
1answer
35 views

Location of curl dns cache file and location of ubuntu global cache dns file

I have curl installed on my ubuntu instance. Can any one let me know location of curl dns cache file as well the location of global cache dns file. I was going through the curl documentation and ...
0
votes
0answers
60 views

how to setup split-dns for vpn with network-manager

I want to create a split-DNS config on a 14.04 desktop machine with both a local eth network and a VPN connection. Ie I should send DNS lookups for address ranges that are accessed via the vpn to the ...
3
votes
1answer
79 views

VM can't ping LAN name but sees it via nslookup

I am trying to connect to a network resource from my 10.04.4 VM (VMware Fusion) but the destination is unreachable by name. What is weird is that the name is visible in DNS: >nslookup my.name ...
2
votes
2answers
762 views

ubuntu 12.04.3 - Reverse DNS issue - slow ping interval but normal ping value

i'm running ubuntu 12.04.3 x86 desktop in my corporation environment. I join the corp domain by Likewise open. But when I ping another pc, say hostname is pc-test, "ping pc-test" or "ping ...