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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3
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454 views

DNS servers not correctly set in VPN

I have to use an OpenVPN network to work from home, and I occasionally have problems getting DNS to resolve. The problem comes and goes, and I can't reproduce it reliably. I took the OpenVPN config ...
2
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0answers
23 views

error insserv with script

I try to install Unbound with the following website: http://www.unix-tutorials.com/go.php?id=3681 I copied the script : #!/bin/sh # # unbound This shell script takes care of starting and ...
2
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0answers
37 views

cat: /var/lib/misc/dnsmasq.leases: No such file or directory

I've searched all over the internet, but couldn't find any answers of my problem.. I want to connect my Raspberry Pi to my laptop. But whenever i try to check the ip address of my raspberry, i get ...
2
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0answers
84 views

Beaglebone black with Debian OS on Ubuntu 14.04 in Virtualbox VM

I am using the Beaglebone Black for the first time. It has the Debian 7.4 OS and I'm using Ubunbtu 14.04 installed in Virtualbox. I'm trying to install Python IO libraries but I'm getting the Can't ...
2
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0answers
135 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 ...
2
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0answers
387 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 ...
2
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0answers
372 views

Ubuntu 14.04 - Network problems (wireless and DNS)

I have seen a very similar problem on post: Cannot resolve dns on 12.10 install but with no clear answer and my problem is related to Ubuntu 14.04, another particularity is that this problem started ...
2
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0answers
136 views

dig +trace returns my DNS IP

When I'm trying to execute dig +trace command, output is the following: $ dig +trace google.com ; <<>> DiG 9.9.5-3-Ubuntu <<>> +trace google.com ;; global options: +cmd ;; ...
2
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780 views

With MAAS set to manage DNS on a subnet on a private IP range, why do only some nodes have DNS entries?

I'm trying to set up OpenStack on MAAS, using trusty. I have a network between these machines all bridged/switched together. I have set up MAAS at 192.168.7.200, I have a Juju client machine at ...
2
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0answers
990 views

Why would having multiple nameservers in resolv.conf cause nslookup to fail, but a single entry work?

I have a resolv.conf on ubuntu 12.04 that looks like this (IP addresses have been changed to nonsense): search internal.mydomain.com nameserver 205.169.169.193 That nameserver is not authoritative ...
2
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2k views

How do I set up a reverse dns on Ubuntu 12.04 VPS

As far as I can remember when setting up my VPS and mail server on it, I had configured the mail server correctly. However, a few of my clients get SMTP errors, host mx1.zonnet.nl[62.58.50.9] ...
2
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89 views

How to access Amazon EC2 instance from Ubuntu 13.10?

I have an Amazon EC2 (Windows) instance which has been created for me and I have public DNS, public IP and the public key. I would like to RDP to this instance from Ubuntu 13.10. I have recently ...
2
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817 views

How to host a website using Ubuntu 13.04 on my local machine

How do I do a complete BIND9 DNS Server Configuration with a hostname? Thank You so much for this wonderful answer. Although the talk here had been more on the lines of setting up a home based server ...
2
votes
0answers
244 views

MaaS dhcp cannot be detected at node installation

I am installing a MaaS Ubuntu 12.04 by ISO with virtualbox as the host machine. I have a problem on the cluster management during the process of adding the node. The node cannot detect the dhcp ...
2
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212 views

Ubuntu FQDN Not pingable on Windows Network

My problem is that my Ubuntu machine seems to have its FQDN setup correctly, yet I cannot ping the FQDN from a windows machine on the same network. Output of various commands on my Ubuntu machine: ...
2
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0answers
541 views

I am unable to use internet in no proxy mode

I am using Ubuntu 10.04 (installed using Wubi in Windows 7) and when I change my proxy settings to no proxy (without any proxy server), I am unable to access any page (using Firefox or Google Chrome) ...
2
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0answers
2k views

Postfix cannot resolve local IPs from Name Server

I currently have a server running "Ubuntu Server 12.04.1 LTS" installed with Postfix Bind 9 (Slave) The postfix cannot seem to resolve my internal IPs to Name Server (PTR) entry I have within ...
1
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14 views

Why is Ubuntu resolving non-existent names to a local machine?

The domain www.hjhhfuddsa.com does not exist. However, if I browse to it in any web browser running under my Ubuntu 14.04 machine, I see the configuration page for an old NAS enclosure at ...
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25 views

Internet wired connection holds only few seconds/few requests before needing to call dhclient again

I have a dual boot ubuntu/windows 8, everything was working fine, suddently, after a reboot from the linux partition, the DNS resolution seems to be in trouble : I have to run dhclient before each ...
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0answers
33 views

dns problem in guest after host connection to vpn

I configured linux guest in kvm runing on ubuntu14.04 host. It runs without any problem and has no issues with DNS. After connecting host to VPN (OpenVPN), guest is not resolving anything from DNS ...
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0answers
16 views

Bind fails with short domain name

I'm having troubles getting Bind to work with a two character long domain name. Is this a known issue? I haven't found anything related to this anywhere. I have about 50 domains up and running in my ...
1
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0answers
12 views

Cant send local mail by client

So I setup a DNS and Mail server, It works fine when I use the local account to send mail to each others, I use "telnet localhost smtp" to send mail or I use Thunderbird to send mail. My mail server's ...
1
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0answers
42 views

isc-dhcp-server: dhcp dynamically update dns records

i'm trying to dynamically update DNS records when DHCP give out addresses. but even though I have specified allow-update with a key in /etc/bind/named.conf.local and specified the same key in ...
1
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0answers
45 views

Dnsmasq and Iptables for routing

I'm using a Raspberry Pi with two ethernet ports as a router. The network looks like this. "Internet" <--(…)--> Fritz!Box <--(172.16.x.y)--> [eth1, dhcp] Raspberry Pi [eth0, static] ...
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53 views

Ubuntu shows “resolving host” but Android is able to instantly access internet on the same network

I am connected to my home wifi network. I have this constant problem with my laptop which runs Ubuntu 14.04 currently. Very often, while accessing the internet, I can see the web pages timing out or ...
1
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0answers
27 views

Implement Catch-all HTTP Server using DNSMASQ

Ubuntu 14.04 | dnsmasq My goal is to setup a catch-all HTTP server using an Ubuntu 14.04 workstation as DNS resolver. I have installed dnsmasq on my Ubuntu 14.04 OS using apt-get install dnsmasq and ...
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63 views

Bind9 DNS:Configure A Local Forwarding DNS Server

i've a small local network Containing(for example): A Ubuntu 14.04 PC As a DNS Server[192.168.1.10] chat.Server1 on 192.168.1.11 chat.Server2 on 192.168.1.12 chat.Server3 on 192.168.1.13 And I ...
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0answers
40 views

Having trouble getting duckdns to work in 14.04.2 LTS

I'm trying to get DNS working for my odroid-C1 Ubuntu but running into this weird problem, error message saying symbol lookup error but my libjavascriptcoregtk-3.0 package is the newest and greatest. ...
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0answers
51 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) ...
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0answers
21 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 ...
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54 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 ...
1
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0answers
100 views

SRV record for localhost XMPP

My question is how to add the SRV records for XMPP to my localhost domain (dns configuration)?. Where exactly do I have to add and What tool do I need to perform this? I am new to DNS configuration ...
1
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0answers
91 views

How to configure Ubuntu Server to point to my registered website's domain?

First off, I'm aware that it's a possibly a duplicate, but what happens is that no matter what I try to google, read, and setup, I'm just unable to fully understand how to do it. Why? Let's take ...
1
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0answers
143 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 ...
1
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267 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 ...
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0answers
160 views

DNSMASQ Error in Syslog

I was browsing my syslog and I found this error:- NetworkManager[984]: [1407179609.489726] [nm-dns-dnsmasq.c:393] update(): dnsmasq not available on the bus, can't update servers. ...
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357 views

Ubuntu 12.04 Cannot connect to Starbucks Free attn Wifi, DNS issue

first off, I'm a bit of a newbie and networking stuff is not my forte. So I've been pulling my hair out for the last hour trying to get my 12.04 Ubuntu partition to connect to an AT&T hotspot in ...
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0answers
77 views

opendkim-genkey txt record in Ubuntu 14.04

After upgrading to Ubuntu 14.04 and generating keyfile using opendkim-genkey I've noticed the txt file is broken like: myselector._domainkey IN TXT ( "v=DKIM1; k=rsa; " ...
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421 views

Ubuntu MAAS DHCP working DNS Not working

I setup Ubuntu 14.04 MAAS on one server. I setup interface to manage DHCP and DNS via the Cluster interface. DHCP is working. But, DNS is not! When I try to add another node, it is doing PXE boot, ...
1
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0answers
427 views

dnsmasq unrecognized command

I'm attempting to run a script which calls service dnsmasq restart service dnsmasq restart dnsmasq: unrecognized service No matter what I call for dnsmasq, it gives me the "unrecognized service" ...
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0answers
761 views

DNS Look up failed - Ubuntu 12.04

I have this problem, which seems to be a 'common' problem on Ubuntu. When I try to open some pages on chromium I get the "DNS look up failed" error. (It doesn't say exactly that on Firefox but it's ...
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0answers
108 views

Update not working, nothing is installing in ubuntu 12.04

I am very much new to Linux. I'm using Ubuntu 12.04. The problem is that I'm unable to install anything on it. Initially when I installed it, it was fine. But I was having some dependency problem with ...
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0answers
446 views

(Solve) Connecting Ubuntu Server 12.04 to public network (internet access)

I have installed Ubuntu Server 12.04 on my computer. I want to setup my dedicated server for web server and also I already have my own domain for web hosting company. I followed these instructions ...
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0answers
860 views

TSQL connection refused - host command DNS resolve issue in local network

I am using VMWare Starter and running 2 guest VMs, Ubuntu and Windows XP Professional. The host system is Windows 7. Windows XP Professional hosts MSSQL database, Ubuntu talks to it using FreeTDS. ...
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0answers
94 views

Weird DNS behavior

I got hold of a really cute little PC, that I want to fiddle around with as a little side-project. It has a normal LAN connection via Ethernet and the /etc/network/interfaces configuration is # ...
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0answers
281 views

How to set up a DNS server on ubuntu server?

This DNS server will use to access a web server/ mysql server. Scenario: DNS Server of 192.168.0.0/24 network - 192.168.0.2 domain name(dn): my.site.com redirect to 192.168.2.1 (webserver/mysqlserver) ...
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0answers
1k views

Setting up DNS and/or Nameserver on VPS

I currently have a VPS and two domains (.com/.net) at an external registrar. My registrar does have DNS controls. I have a forwarded email (on my .net) through my registrar. I have installed and used ...
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0answers
142 views

Content Delivery Network

I have a project that i need to setup Content Delivery Network on Ubuntu, That involves like Geo Dns structure, Fail over and High availability So i am looking if some one help me that where should i ...
1
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0answers
207 views

how to force ssl with default-ssl without DNS?

I know this has been covered everywhere, and I've actually made this work on another server, but I can't seem to get it to work. I have this RewriteEngine on RewriteCond %{HTTPS} !=on ...
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0answers
72 views

Domain name problem with VPS

I want to host a website on a VPS. I have everything working except for domain name resolution. The VPS has no control panel. It just has a CLI. I did go to my domain registrar which provides DNS ...