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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221 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 ...
3
votes
0answers
463 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
26 views

painfuilly slow windows clients using bind on 14.04

I'm very new to Ubuntu (though I've installed 14.04 server a dozen times now) and Linux and I'm trying to replace my Win2003 server with Ubuntu 14.04 server. I have a brand new shiny HP Gen8 box and a ...
2
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0answers
150 views

bad dotted quad / DNS

I am trying to redirect a DNS to my VPS (Ubuntu Server 14.04). I am trying to configure the zones of bind. But I have an error I can't fix ... Any Idea ? toto@serveurVPS:/etc/bind/zones# ...
2
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0answers
82 views

Why isn't NSS using mDNS?

I have a machine that is unable to resolve hostnames over mDNS: ### mDNS is working $ avahi-resolve -n foo.local foo.local 1.2.3.4 ### NSS is configured to use mDNS $ grep ^hosts ...
2
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0answers
2k views

getting openconnect vpn to work through network-manager

this is the same issue as here: Getting openconnect vpn to work through gui , but my additions to it were deleted and i was asked to create a new question. in fact, there are a number of folks asking ...
2
votes
0answers
83 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
388 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
220 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
494 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 ...
2
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0answers
464 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
501 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
votes
0answers
247 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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0answers
542 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 ...
2
votes
0answers
1k 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
votes
0answers
1k 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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0answers
3k 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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0answers
132 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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0answers
895 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
283 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
votes
0answers
257 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
635 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
votes
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 ...
2
votes
0answers
772 views

How do I get rid of OpenDNS?

Some months ago I set up OpenDNS. Since then, occasionally I get slow page loads and pages that redirect to a timed-out opendns page. I would like to see if removing OpenDNS will make browsing ...
1
vote
0answers
15 views

Juju LXC Containers getting wrong DHCP?

I'm using a networking similar to this one: http://www.openstackbasement.com/maas-network-hardware When I run: juju deploy --to lxc:0 mysql juju deploy --to lxc:0 keystone etc... According to ...
1
vote
0answers
37 views

Laptop DNS broken after use on another network

I have a laptop running Xubuntu 12.04 Desktop 32bit. It was a clean install about 3 years back. I took it abroad recently and used it on somebody else's network. I was getting intermittent name ...
1
vote
0answers
25 views

Cannot Connect to Network checked /etc/network/interfaces

I am trying to connect to the network on a ubuntu server 14.04 on a laptop. Pinging to google.com gives unknown host google.com pinging to 8.8.8.8 gives Network is unreachable /etc/network/interfaces ...
1
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0answers
36 views

Can't set the openVPN without dns leaks

I found that I have leaks when I set my VPN through Terminal. I found couple thread and tried to use this method - How can you test for a DNS leak for an OpenVPN provider? I made everything, when I ...
1
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0answers
34 views

Using pushed DNS from OpenVPN with NetworkManager on Trusty Tahr

My company provides me a VPN connection that also hosts a DNS server for names that are internal to the VPN. Currently, it sets all my traffic to route through the VPN, which works but is undesirable. ...
1
vote
0answers
442 views

network state DNS_PROBE_FINISHED_NO_INTERNET

Recently I bought a Hp pavilion 15 Notebook. Okey the problem is that when I'm on the internet afterba while of being connected, the pc leave receiving the signal of the Modem, and appears this ...
1
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0answers
70 views

Static IP working slow in Ubuntu 15.04

In ubuntu 15.04 I have, in order to have a static IP in my LAN, updated /etc/network/interfaces to: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 192.168.1.140 netmask ...
1
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0answers
82 views

DNS server testing and configuration

You are required to configure and test a DNS server. Configure a DNS server with both forward and reverse lookup. You should configure a domain name zone of .itc514.edu, and a reverse name mapping ...
1
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0answers
87 views

No DNS names resolution in Xubuntu 14.04

The system is Xubuntu 14.04 on an S3J series Asus laptop. It worked o.k. until it suddenly stopped resolving internet names. As I recall, it happened during an "apt-get upgrade" process. First, I ...
1
vote
0answers
76 views

Using Ubuntu Server machine as a DHCP and DNS server to forward URL's to IP addresses

I'm inexperienced with Linux servers but I've done okay so far - basically I want this machine to dish out IP addresses via DHCP (done) and then I also want it to act as a DNS server that simply sends ...
1
vote
0answers
202 views

How to configure dynamic DNS for IPv6 using bind and isc-dhcp-server

I have a ubuntu 14.04 LTS machine created in VirtualBox which I could configure IPv4 delegation via isc-dhcp-server. Then by follow this great tutorial, I could configure such machine to also update ...
1
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0answers
23 views

How to run BIND DNS server as unpriviledged user?

I am developer and I use BIND DNS server to debug software. On Windows and on CentOS 6 Linux it is not a problem. I use following command line: named -f -c "/my/custom/config.conf" It works OK (of ...
1
vote
0answers
108 views

Reverse DNS Lookup on ubuntu inside virtualbox

I'm using Ubuntu 12.04 inside virtualbox on win7 using NAT for networking. I had to run the command : VBoxManage.exe modifyvm "Ubuntu" --natdnshostresolver1 on Which basically tells the guest to ...
1
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0answers
28 views

Change zone name for MAAS region/cluster controller

How safe would it be to change the zone name for the MAAS Region/Cluster controller with nodes already deployed and registered in MAAS DNS? Currently mine is set to default maas and I would like to ...
1
vote
0answers
89 views

Correct nameservers in resolv.conf but no hostname resolution

As said in the title I can't resolve hostnames when doing a "ping google.com" even though the content of /etc/resolv.conf seems correct : nameserver 8.8.8.8 nameserver 8.8.4.4 I am connected to ...
1
vote
0answers
92 views

Domain name is syntactically invalid

I trying to send e-mail via exim . when i try to send mail to mail.ru i got an error . What should i do? host domain on my machine? and why it is syntactically invalid. How should i reconfigure my ...
1
vote
0answers
45 views

How to set custom DNS for all users using Ubuntu as Wifi Hotspot?

I use my laptop as wifi hotspot with an "ad-hoc network" instead of a normal wifi router. The question is: how can i set custom dns for all the hotspot's user so i can create new domains that will ...
1
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0answers
51 views

BIND configured, DNS configured. No joy!

I have a GoDaddy domain, I've adding host names (ns1, ns2 of the domain through GD), I've pointed the name servers to my VPS server IP. So we are ok so far, great. I've resorted to install VestaCP on ...
1
vote
0answers
101 views

Connect to network - network is unreachable

Although I am able to browse the net just fine I keep getting network unreachable when I run a download using my Java program. It was working fine till yesterday but now it is suddenly giving me ...
1
vote
0answers
58 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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0answers
26 views

Make Ubuntu set custom DNS for new connections by default

I am using custom DNS servers. For each new connection I have to add custom DNS servers manually. Is there a way for all new networks to have different DNS servers automatically?
1
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0answers
133 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 ...
1
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0answers
160 views

resolver fails because of no recursion enabled on DNS server and AAAA returned?

Kubuntu (Ubuntu 14.04.2 LTS, kernel 3.13.0-48-generic) installed 2 months ago (not installed yet newest updates). I have noticed that my resolver is failing: root@arrakis:~# telnet onet.pl telnet: ...
1
vote
0answers
93 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
vote
0answers
38 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
vote
0answers
522 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 ...