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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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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15 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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25 views

How to install domain name without purchase one [on hold]

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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9 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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15 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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28 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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19 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
44 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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20 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
15 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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20 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 ...
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1answer
16 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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23 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
256 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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69 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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57 views

Sudo apt-get update error Ubuntu 14.04 With Big Blue Button

I'm using the Ubuntu server (OpenSSH not the entire system) to install the Big Blue Button webinar system to it (in Ubuntu's version 14.04) and when I type in sudo apt-get update it gives me this: ...
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30 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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17 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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3 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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16 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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43 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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21 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 ...
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1answer
30 views

ISP DNS Server used Instead of Local DNS

The Issue On my company's internal network, there is a development server called devserver.mycompany.com Usually I can connect to this server with out issue, but sometimes (seems random to me) ...
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18 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 ...
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36 views

how to configure lamp for ubuntu server so to load example.local domain to my web server

I have installed Ubuntu server 15.04, Lamp in it and configured the dns to setup static IP by following the below tutorial. ...
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16 views

14:04 Server: dhcpd/bind9 - (Static IP) Clients no longer have connectivity to external hosts

After following the linked guide from a fresh install of 14.04: http://blogging.dragon.org.uk/dns-with-bind9-and-dhcp-on-ubuntu-14-04/ I made an addition to /etc/dhcpd.conf so that I had a group of ...
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109 views

Ubuntu DNS change ERR_NAME_NOT_RESOLVED in Chrome

I've created my first ubuntu 14.04 server on digital ocean and tried to point my domain to it. Ive configured everything with help of the following tutorial to set up my apache virtual host. When i go ...
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36 views

Ubuntu 14.04 502 Proxy Error Reason: DNS lookup failure for: radiant

I tried to access a website I use on a regular basis, but I cannot access it anymore. I do not have any experience solving issues in my computer. I was wondering whether anyone could help me solve ...
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1answer
67 views

15.04 - Mounting using CIFS failing with “No such device or address”

I'm trying to mount a cifs share using: sudo mount \ -t cifs \ -o credentials=$HOME/.smbcredentials \ //server.example.com/Common/Share/Path /mnt/mountpoint Which fails with: Retrying ...
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27 views

if secondary dns server is down ubuntu can not resolve

I am experimenting with two local DNS server. When I take down the second (or the primary) dns server, I can not resolve any domain name. Using host command or nslookup I get time out error : ...
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32 views

Wireless/DNS Problem

I have a weird wireless/DNS problem. I am using a ALFA Wireless adapter: AWUS036H. So the problem is this, every now and then the Wifi disconnects and reconnects. When it is able to reconnect ...
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155 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 ...
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48 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 ...
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14 views

dns bind reverse lookup failed in webbrowser

I am in a local lan my server is acting as dns & web server. I am installed the bind in that server and set the primary dns to 127.0.0.1. Everything worked fine. "nslookup group.hom" command ...
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1answer
29 views

Why is the content of /run/resolvconf/interface/NetworkManager changed every time I reboot?

I have some issue with my dns configuration, so I googled and picked up a solution by 1) editing /run/resolvconf/interface/NetworkManager and 2) running sudo resolvconf -u. This helped a little ...
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1answer
25 views

I have no SOA how to edit the db.domain file

I am in a private network having 192.168.1.0/24 . I have a wireless router, i am providing wifi hotspot to my users with wireless router and i have 100 users in the network. I want to provide name to ...
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12 views

how to provide dns name service to web server in a LAN

I am running a web server in a local are network managing 200 members. I want to provide a name to my web server's ip. I searched alot and find a tool dnsmasq i don't know how to set this to provide ...
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1answer
30 views

Problems on Kubuntu machine connecting to some sites after AT&T uverse upgrade

I recently had the U-verse service upgraded, and noticed that Facebook and youtube, and sometimes Yahoo have problems loading and displaying content. I am running Kubuntu 14.04 LTS, and using the ...
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45 views

using ddclient with namecheap dns service doesn't update IP

I have just set up my first ever home server. I created root, made the IP static on my local network, installed openssh, and can now ssh into the computer as long as i am connected to my homes router. ...
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40 views

How to setup Samba to register with an Active Directory Domain Controller?

I am trying to setup an Ubuntu 14.04 server on a windows network. The server has a static IP address assigned to it. I need to be able to register the hostname (argo) of the server with AD domain ...
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1answer
92 views

DNS Issue in ubuntu 14.04

I am facing DNS resolving issue sometimes in my Ubuntu 14.04.2 LTS trusty. I have configured my system with network manager to work with static IP assignment. I have also tried by changing DNS server ...
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25 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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1answer
53 views

How does DNS resolution work without any nameserver entries in resolv.conf?

I have a query on the purpose of the resolv.conf file. If I delete the name server entry from the /etc/resolv.conf file, my browser still able to do the DNS query. As far as I know, any URL is first ...
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2answers
80 views

Why is my /etc/hosts file not queried when nslookup tries to resolve an address?

I have a couple of local domains resolved to 127.0.0.1 in my /etc/hosts file. And it was all alright for a period of time but now when I run: nslookup test.local It results in: Server: ...
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41 views

dns finished no internet

Hello i just recently moved from windows 8 to ubuntu ,It happens that randomly it cannot connect to the internet, appears this message: dns finished no internet, Check your Internet connection Check ...
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35 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 ...
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9 views

Chrome not accessing the proper host after updating mydomain.com

I just went to my domain provider and I changed the A-record of mydomain.com. When I do ping mydomain.com I see it is accessing the proper IP address, but when I try to connect with Chrome or ...
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38 views

Redirect all traffic except DNS

I successfully setup Ubuntu server up & running. Server configuration: tun0 192.168.99.1/24 NAT Enabled Note that client able to communicate with server. ping 192.168.99.1 Now I stuck at ...
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1answer
35 views

DNS configured in network manager but not working

I have 2 DNS configured in network manager for my connection (Selected DHCP Addresses only). The DNS are working good if used with nslookup. /run/resolvconf/resolv.conf # Dynamic resolv.conf(5) ...
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3answers
232 views

Difference between Software Selection Servers

I am installing Ubuntu Server, and I want to know what is the difference between these: [ ] OpenSSH server [ ] DNS server [ ] LAMP server [ ] Mail server [ ] PostgreSQL server [ ] Print server [ ] ...