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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Reverse lookup only works when db.192 wrongly configured

Following this tutorial reverse lookup stubbornly fails to work for as long as db.192 is configured as is instructed. However, if I change the line: @ IN SQA server.domain.home. ...
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2answers
54 views

DNS is not working, /etc/resolv.conf is not overwritten. Why?

I have this configuration in my server in the Network Manager connection: /etc/NetworkManager/system-connections/wired-connection [connection] id=wired-connection uuid=0c501f08acc5497cb7... ...
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13 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 ...
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1answer
31 views

Google sites are not opening

I'm using Ubuntu 14.04 and I'm having a strange issue, I have no idea what else to do... 1) Some Google sites/functionalities are not opening. GMail works but the browser tab keeps loading forever, I ...
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1answer
27 views

Correct MX record, subdomain and Dynamic DNS settings for Namecheap Self hosted email @domain.com email & correct Hosts and Hostname for server

I want to correctly Set up my own email server at home for my domain.com. It is hosted by namecheap. I need to set up the following On Namecheap (Domain provider): MX Record Subdomain On Server: ...
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1answer
29 views

DNS issues with Cisco VPN (vpnc) on 15.04

I'm having issues with DNS resolution of on-network servers. I can get them directly via IP address, however DNS lookup fails. Notes: I configured the VPN connection via NetworkManager. The ...
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28 views

dns forwarder dnsmasq not working . . .?

I installed lubuntu 15.04 into a VirtualBOX vm and am using openvpn to connect to PureVPN service. I lose connectivity after an unknown amount of time. Disconnecting the VPN doesn't help. I've ...
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2answers
47 views

register DNS for connecting to my computer

I am using a PC at university and I need to set up a DNS name for it under the network of university such as: my-pc.dm.myuniversity.edu for accessing this computer via my laptop from home (through ...
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18 views

Could not connect to internet on ubuntu (guest on workstation)

I have installed an Ubuntu Server 15.04 on VMware Workstation 10. My host is Windows 8. I have used bridge networking in VMware settings. Now i am not able to ping google.com. The DNS is working fine ...
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1answer
36 views

“ping: unknown host www.google.com”

My college uses a proxy server say 172.21.0.11,port:3128 and when I try to ping www.google.com in terminal I'm getting an error as ping: unknown host www.google.com Without setting proxy we can only ...
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1answer
31 views

Ubuntu 14.04 - Why i can not open my domain who is after router port redirecting [closed]

I am using Ubuntu 14.04 server edition and i have installed apache2 with all modules for it so i can run a simple web server. I have really strange problem. I am using router which is giving local ...
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35 views

apt-get update stuck

When I do apt-get update on ubuntu 14.04 GUI it just goes on like this 0% [Connecting to au.archive.ubuntu.com (202.158.214.106)] [Connecting to extra AND it will wont update. I have also ...
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1answer
29 views

Troubleshoot Python script to update Dynamic DNS with NameCheap (Script from Help Ubuntu)

First off, please help me with the question, dont offer me options like DDClient~! Not to be rude, but lots of people offer workarounds, Id like to use this method and im just having a bit of trouble ...
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1answer
40 views

Ubuntu server 14.04 Webmin installed

I am running Ubuntu 14.04 server. I am administering the domain from GoDaddy. I would like to dump GoDaddy and use my Ubuntu server for everything including e mail and set up my own DNS from Ubuntu. ...
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47 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 ...
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0answers
9 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 ...
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17 views

How to set up basic Bind DNS server (in Ubuntu)

How does one make it such that when they type www.ardvark.abc It goes to 192.168.1.123 Similarly, when they type ssh john@ardvark.abc It goes to john@192.168.1.456? I presume this is ...
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24 views

Bind9 DNS Setup [migrated]

I have my network set up like this: My question: what is the best approach for setting DNS on this network so that all host (H1, H2 and H3) can resolve each other? It is enough to just have NS1 as ...
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0answers
44 views

Some pages do not load in Google Chrome on linux

Pages like search results in google.com, extentions in Chrome Web Store. It is loading for a while but rarely the page is displayed. I've tried changing the DNS to use Google and disable hardware ...
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0answers
16 views

how to change basic queries in powerdns?

is there anyone who knows how to change basic queries in powerdns ? made some changes in the pdns.conf file but they don't seem to take effect. also, is there a way to set the recursor without ...
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1answer
46 views

Adding bridge for LXC breaks NAT/DNS

I am having a issue with a small home server. This server operates as a DNS/DHCP/NAT. I am also trying to add a few LXC instances with JUJU however I am running into a issue with the bridge. When I ...
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0answers
19 views

Wordpress Installation on VM on VMWare workstation. FQDN redirecting incorrectly to 127.0.0.1

Here's some network specifics about the problem. VM installed on VMWare workstation (v.10.0.0 build - 1295980) running on a Windows 2008 R2 server host in a windows environment. The end result is ...
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0answers
27 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 ...
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23 views

Ubuntu 14.04 wild card domains not working after uninstall of Samba

I am new to Ubuntu, I just switched to 14.04 a week ago. I installed LAMPP and used this http://ubuntuforums.org/showthread.php?t=1719832 and this ...
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11 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 ...
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32 views

ProxyError : DNS lookup failure

I use load balancer for loading my website from servers. when I send some requests in a sequence. I got this error : the proxy server received an invalid response, Reason: DNS look up failure for: ...
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1answer
53 views

localhost is wrong ip address

I'm having a bizarre problem. It started with postgresql-9.3 not installing. I found it couldn't find localhost. I checked /etc/hosts and it has localhost properly as 127.0.0.1 But when I ping ...
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0answers
7 views

MAAS remote cluster controller as name server

Following my success with the setup of a remote MAAS cluster controller (see Issue with MAAS cluster controller, installation fails) I have a problem with name servers. Basically the question is how ...
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0answers
19 views

Restarted MaaS cluster, systems unaccessable

I build a cluster with 14.04 LTS, MaaS and juju. We had a plant shutdown, so I shutdown the cluster using MaaS/Nodes I selected all, then in "Bulk Action" I selected "Stop Selected Nodes" and clicked ...
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0answers
32 views

using unbound with dnscrypt-proxy

My operating system is Ubuntu14.04 , I'm trying to use dnscrypt-proxy along with unbound,using unbound listening to port 53, forwarding name-resolve request to port 40, which is being listened by ...
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48 views

Bind ACL — add a range of IP addrresses

I've been following this tutorial to set up Bind as the DNS on our home network. Instead of the suggested technique of adding a list of allowed IPs to the ACL in named.conf.options, I wanted to add a ...
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1answer
34 views

How to install domain name without purchase one [closed]

Hi it's my first question here i hope get what i need .. The title dos not explain exactly what i mean ..anyway i had installed my own web server on Apache2 and i can access it through public Internet ...
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0answers
18 views

Squid server and ubuntu router

I have configured my ubuntu server to be a router and configured the squid proxy to block access to certain websites. The problem is while it does block those websites i cannot access any other ...
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0answers
73 views

How can I get rid of Dns bad config Error

I am browsing the internet and its working fine but every now and then when a page is loading I get this DNS_PROBE_FINISHED_BAD_CONFIG error or ERR_NAME_NOT_RESOLVED error only when I reload the ...
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0answers
66 views

Changing DNS on Ubuntu

Running Ubuntu 15.04. I'll briefly describe my network configuration. Main router connected to be Cable modem is 192.168.1.1. A secondary router (192.168.2.1) is connected as a client to the main ...
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1answer
31 views

DNS Solver not working correctly

I Just installed 15.04 (64bit) on this machine. Every time that I tried to connect to a server for the first time, and by this I mean: Go to a website Updating ubuntu Downloading a file Anything ...
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1answer
47 views

How to view hostname locally, works external

I have a webserver hooked, up I recently noticed that I can view the webserver htttp://music2share.ca from out side my network but when I try with in my network at home wont work, I edited the hosts ...
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0answers
38 views

Setup router, iptables to access website via Domain Name in local network problem

I have a problem with iptables / bind9. Topology: My local PC: DNS set to: 88.220.77.193 VirtualBox with: ROUTER: eth0 : 88.220.77.193 255.255.255.0 to the Internet; eth1 : 192.168.100.254 ...
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1answer
36 views

DNS routing after PPTP connection

I use a PPTP VPN to connect to my work's environment, but don't know how to configure DNS resolution the way it seems appropriate. When I connect via Network Manager I get two servers in ...
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0answers
28 views

Internet connect through ISP to local server's root and other folders

This is complex so let me explain I have successfully connected to my local dev server which is Ubuntu 14.04 LAMP setup. I have done this by using a no-ip to handle the dynamic DNS, and forwarding ...
0
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1answer
48 views

Can't reach SMTP server via telnet

Virtual Machine: Ubuntu 14.04.1 LTS I'm using putty to access Ubuntu from my Windows 7 PC. This Ubuntu machine does not have a registered domain name. Setting up a local SMTP server on this Ubuntu ...
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0answers
34 views

Why does connecting to a WiFi network fix DNS settings on another network interface?

I use EasyTether for USB tether to my MBA running Ubuntu 15.04. The steps to do this used to be: easytether connect sudo dhclient easytether0 At some point (probably after the upgrade to 15.04, ...
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2answers
302 views

How to know what DNS am I using in Ubuntu 14.04

(A follow up to similar question for 12.04.) Prior to Ubuntu 12.04, you may see the active DNS in /etc/resolve.conf. In Ubuntu 12.04, NetworkManager no longer works with the file. You have to ...
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0answers
106 views

Why Failed to fetch http://us.archive.ubuntu.com/ubuntu/dists/trusty/InRelease if I have ping?

I am trying to update an ubuntu 14.04 server and have my dns config ok because I can ping us.archive.ubuntu.com so I dont know what is happening here. This is my /etc/network/interfaces file: auto ...
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42 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 ...
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0answers
25 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 ...
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0answers
4 views

how to modify the way powerdns reads from mysql DB

how to modify the way powerdns reads from mysql DB ? the mysql log shows that it reads certain columns , rows, content et cetera. how do i change the order of reading or manipulate with it ?
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0answers
26 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 ...
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0answers
82 views

Facebook hanging on akamaihd.net

I have this issue since a long time. Facebook keeps hanging on akamaihd.net. Often the page doesn't even load CSS, everything appears out of place. And sometimes the "establishing secure connection" ...
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0answers
28 views

Keep getting Bad Gateway

here is the output from $ sudo apt-get update Err http://archive.ubuntu.com trusty/main Sources 502 Bad Gateway W: Failed to fetch ...