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.

learn more… | top users | synonyms

0
votes
0answers
55 views

Ubuntu 14.04 no DNS resolv

In my desktop pc with dual boot (Ubuntu 10.04 and Ubuntu 14.04) with the same Network configuration I have access to the internet running 10.04 and after the last update in 14.04, NetwokrManager stop ...
0
votes
0answers
46 views

IP addresses of DNS Queries Show Up Backwards in Wireshark

I have been using DNSCrypt with dnsmasq on my Ubuntu 14.10 machine. When running a dumcap via Wireshark, I've noticed a couple of odd occurrences lately. Firstly, after disconnecting from my VPN, with ...
0
votes
0answers
39 views

How do I get NetworkManager's dnsmasq to work properly?

I have decided to give Ubuntu another shot, but I am running into some road-bumps after getting it installed. Namely, NetworkManager is not playing well with DNS. I am trying to get networking ...
0
votes
0answers
12 views

Possible to access lxc guest containers via DNS?

Assume I have a VPS server available at dev.myserver.com- I would like to be able to run 1 or 2 services from this one server, for example a saltstack service and a Jenkins instance. Now to keep the ...
2
votes
1answer
638 views

Cant access apache webserver outside/inside local network

I apologize in advance if I use any technical words in the wrong way. I'm still a newbie to Linux/networking Ive been trying to figure out this problem for over a week and none of the related ...
2
votes
1answer
54 views

DNS not resolving on same network only from outside - 3 days of headache already

I have a domain forwarded to my apache server let's say test.example.com. This works fine outside my home network I can reach it via mobile (4G). But on my laptop I can't reach it. Also I can't ...
0
votes
0answers
87 views

browser unable to resolve host

I want to visit some websites, but I always get "unable to visit", unable to resolve the host. I tried ping, and I get: esolve@mypad:~$ ping http://www.santaihu.com/ ping: unknown host ...
0
votes
1answer
68 views

DNS broken when logged in via XRDP?

I have an install of Ubuntu 12.04LTS x64 and log into it via XRDP from a Windows PC using Remote Desktop Connection. My problem is that when I try to install software usint package manager or ...
1
vote
1answer
166 views

Cannot resolve hostname

5 PCs, all running Ubuntu, connected by a wireless to router with DNS. Running an ejabberd server on one of the PCs, and an Apache server on another. PC 1 can only connect to the servers with their ...
0
votes
0answers
128 views

DNS can resolve only www.google.it

I have a problem with DNS resolving. While surfing on the internet the computer stops loading pages in a random way, Chromium shows me the "DNS_PROBE_FINISHED_NO_INTERNET" error. I also can't ping any ...
0
votes
0answers
58 views

nslookup returns name along with address.in-addr.arpa in suffix

I have configured bind9 in ubuntu 14.04.2 server. While nslookup my address it returns name along with address.in-addr.arpa in suffix. Example: nslookup 192.168.182.10 Server: 192.168.182.10 ...
3
votes
1answer
61 views

code is still using old IP even though server nslookup showing new IP

I have migrated a site to a new server. When I check DNS checkers online it seems that the domain has propogated worldwide. When I try on the server nslookup www.example.com I get the new IP as ...
0
votes
0answers
26 views

Update ubuntu with static DNS

I am trying to set up a machine with Ubuntu where I can not use any connection to a DNS server, and I would like to be able to update the system periodically, but, adding the ip that I get ping-ing ...
0
votes
0answers
30 views

Repository MTR strange behaviour:

Can someone explain this MTR readings or that may be a DNS resolver issue. have tried many things: such as changing dns to popular public ones with no changes First issue: MTR GUI does not show the ...
3
votes
1answer
95 views

How do you update the DNS resolver configuration without causing downtime?

A note New question, since everything else on this matter appears to be outdated and/or conflicting. Hold your close votes, please :) The problem On stock installs of Ubuntu 12 and 14 Server, the ...
0
votes
0answers
119 views

Ubuntu 14.04 DHCP client not updating Windows DNS

We have a set of Windows 2012R2 domain controllers which provide DNS and DHCP service for the network. I have an Ubuntu 14.04 server which is getting addresses via DHCP. This works correctly. In the ...
1
vote
1answer
269 views

iptables - redirect DNS queries

I already have the following iptables rules applied in order to masq all of the wlan1 traffic through wlan0. *filter :INPUT ACCEPT [48:6144] :FORWARD ACCEPT [0:0] :OUTPUT ACCEPT [47:6078] -A INPUT -i ...
0
votes
1answer
103 views

How do I change the primary DNS address of my DSL connection in Ubuntu 14.04?

I am using a DSL network connection in my Ubuntu 14.04. There has been set up a primary DNS address of my ISP by default. But I want to use Google Public DNS. I tried to edit the connection by going ...
0
votes
0answers
98 views

Can't connect to Samba server by name

I have an Ubuntu 14.04 file server running Samba 4.1.6. The server is a member of a domain with a Windows 2012 server acting as the primary domain controller. I want to connect to it using Windows 7 ...
0
votes
1answer
139 views

How to resolve Link Local hosts without typing .local

So in windows, if I typed ping familyroom, it would tell me that my PC in the family room is 192.168.1.61. (DHCP assigned address that isn't in any DNS) I'm running a new install of Ubuntu 14.04 ...
0
votes
0answers
78 views

Ubuntu Wifi connection works but no internet

I'm using Ubuntu 12.04.1 LTS. Whenever I start up Firefox it says "server not found" despite the fact that wifi connection seems to be established. I would appreciate if anyone can help — Gabriel ...
1
vote
2answers
78 views

DNS stops working after few seconds

When I reboot my Ubuntu 14.04 server (with Zimbra mail system) DNS lookup works a few seconds and then it stops. First I can ping my website but after a minute I cannot, see this: hans@ubumail:~$ ...
0
votes
0answers
26 views

Can't Set DNS by DHCP

OS : Ubuntu Server 12.04 After Compile and Install Unbound and depends Library.. resolv.conf always return 127.0.0.1. Files on /etc/resolvconf/update.d not have contain 127.0.0.1 File : ...
0
votes
3answers
114 views

How to set up a DNS cache server without port 53

my country, indonesia, is attempting to take over DNS functions in all the ISPs here. thousands of sites including reddit, vimeo, and even (sometimes) github are blocked. now this would not be so ...
0
votes
1answer
116 views

VMWare NAT configuration

I am trying to run the latest Ubuntu Desktop as a guest inside VMWare Workstation. I need to use NAT for internet access and access to the other Virtual Machines. This works flawlessly on all of my ...
1
vote
1answer
114 views

Not able to access outside services though Openvpn in brigded bridged mode and routing everything thorugh the vpn

I have setup a small server with a bridged openvpn setup. My goal is use my network services and Internet connection from every location with Internet access. Right now I am just able to use services ...
0
votes
0answers
43 views

Changing the hosts file is not working

I am in the processing of migrating a site to a new server. I am currently testing it before actually changing the DNS for that domain. I changed my windows hosts file to point the site to the new ...
0
votes
0answers
54 views

Why do SSH passwords sometimes stop working?

On more than one occasion I've messed up so bad the only answer is to reinstall Ubuntu. One of these mess ups is that I do something such that the password to SSH into the machine no longer works. ...
0
votes
1answer
2k views

curl --resolve option not working: “Hostname was NOT found in DNS cache”

I am attempting to use curl's --resolve option to connect to the specified IP address when performing the HTTP request, but curl keeps reverting back to the IP address as retrieved by my local DNS ...
1
vote
0answers
61 views

Resolvconf doesn't generate nameserver IP when I used openvswitch?

Why can't resolvconf generate dns-server or how to troubleshoot it? root@openstack-controller-01[Standby]:/home/user01# cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) ...
0
votes
0answers
53 views

dsn server wrong ip address

I am new to setting up a server I have an old desktop running Win XP , so loaded Ubuntu 14.04 LTS server. Installed Apache2 I have a laptop running 14.04 client now I typed 192.168.1.4 in the browser ...
0
votes
1answer
28 views

Are there DNS leaks with the system proxy setting?

I'm using a system-wide proxy to browse the Internet. Are there any DNS leaks with that?
0
votes
1answer
196 views

Postfix, Dovecot mail server can send mails but not recive

I'm new to linux servers and just got myself a VPS from Ovh. Also got a domain though ovh. I have tried to use this Tutorial to set it up. And I guess that somewhere I must have messed up. Have ...
0
votes
0answers
45 views

Applications in Ubuntu take forever to resolve URL, webpages usually don't load completely. Internet on other OSs are fine. What's wrong? (14.04)

All the computers in my house are connected to the same router, with the same DNS (googledns). The two Ubuntu machines take forever to "resolve host" (chrome/firefox), but the Windows machines aren't ...
1
vote
1answer
988 views

Got SERVFAIL reply from 8.8.8.8, trying next server [ubuntu 14.04 digitalocean ispconfig]

All started with a vps from digitalocean and the following documentation from ispconfig https://www.howtoforge.com/perfect-server-ubuntu-14.04-apache2-php-mysql-pureftpd-bind-dovecot-ispconfig-3 after ...
0
votes
1answer
79 views

Cannot ping localhost when resolv.conf.d/head modified

I have observed this behaviour since about a week ago, and I don't think I have changed any related configurations. The problem is that when I run ping localhost, I get the following error: ping: ...
2
votes
3answers
346 views

Nslookup resolves search domain but ping does not (14.10) [duplicate]

At my company, many of our configuration scripts, etc use just the server name. For example, http://server rather than http://server.company.com. I have configured the search domain in the GUI Network ...
0
votes
1answer
79 views

unresolved host / Upgrade 12 to 14 Ubuntu/ Net Connection fine through browser

I recently upgraded to 'Trusty' i.e. Ubuntu 14.04. I tried pinging google.com through the terminal. ping google.com ping: unknown host google.com I tried the following: sudo apt-get remove --purge ...
0
votes
0answers
99 views

Windows local network access to apache virtual hosts on a ubuntu DNS domain

I have set up a Ubuntu Server machine (14.04) with LAMP, and I have set up a static domain name with bind9 at http://webserv.dev. That domain is showing up when I try to access it from a Windows ...
0
votes
1answer
900 views

How do I configure the search domain correctly (14.10)?

I recently installed Ubuntu GNOME on my work computer, replacing Windows 7, because I will be doing a lot of Linux development work. Many of our configuration and development scripts use shortened ...
0
votes
1answer
38 views

uninstalling 'no-ip' from the terminal - how?

I've tried to install the no-ip client but i couldn't complete the task via the terminal. I want to know how to go back and delete all its files? Thank you.
1
vote
0answers
23 views

APACHE 2 DNS: DNS for mail server

I am trying to configure my own mail server. My domain name is: exemple.net I've created a sub-domaine (a virtual host an apache2): mail.exemple.net my hostname is: server01 (the name of the server ...
0
votes
1answer
56 views

Mail server: shall I set up a sub-domain name?

I am trying to put in place a mail server following this tutorial: http://www.starbridge.org/spip/spip.php?article12 Before starting I was wondering if I had ta create a virtual domain on apache. my ...
0
votes
1answer
56 views

Owncloud - ping - DNS

I am very inexperienced with command line and only trying to install owncloud. I have put Ubuntu Server 14.04 on an old 32 bit laptop (thinkpad Z61m). I am trying to install owncloud and have tried: ...
0
votes
0answers
9 views

Do I need to use forwarders in a local DNS?

I have been doing some experimentation with BIND and had some questions regarding fowarders. From what I understand, a forwarder is something that will forward requests the DNS server cannot process. ...
1
vote
0answers
67 views

HTTPS on Ubuntu instance Amazon EC2

I have a question which I hope somebody can answer for me. My situation: I have an Ubuntu Server running Apache2 on a EC2 Amazon instance, which is serving an OwnCloud instance. My goal: I want to ...
0
votes
2answers
514 views

local DNS lookup not working, despite everything is in /etc/hosts

I am running Ubuntu (12.04) on Virtual Box and want my machine to be able to lookup its own hostname, the same way other VMs will do in this network (I am trying to build virtual cluster). There is no ...
4
votes
2answers
217 views

How do I temporily locally set example.com to resolve to 127.0.0.1 without modifying the hosts file

I've just updated my domain's DNS records but it will take a while for them to propagate across the internet. Until then, is there anyway I can temporarily set my domain, say box.example.com to ...
0
votes
1answer
31 views

DNS zone file question

I have been researching on how to set up a DNS server and found that BIND seems to be the best way to do so. I am new to setting up a DNS server so I have a couple of questions If I am only using the ...
0
votes
1answer
38 views

Setting up a DNS without owning a domain

I have been researching on how to set up a DNS server and found that BIND seems to be the best way to do so. I am new to setting up a DNS server so I have a couple of questions I do not own a domain ...