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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76 views

DNS query refused when using Android tethering

I'm using Ubuntu Desktop 14.04.4 and trying to use Android 6.0.1 tethering. Both WiFi and USB connection to the phone seem to be managed well by Network Manager, but the DNS is not working properly. ...
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74 views

nslookup works, ping doesn't (for any domain)

Overnight, one of my servers stopped resolving DNS records. I can still use nslookup, dig, and host to look up records, but ping, curl, and so forth give me "unknown host" errors. I could find plenty ...
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59 views

zone transfer file is denied

I am implementing this in my home network so If I swap the role from master to slave[ this machine should work [ as primary server for ns.insec and slave server for not.insec] in machine 1 and in ...
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1answer
134 views

zone transfer denied

I spent many hours to fix my problem but I did not get it done what I needed to fix this issue.I assume may be some problem with file permission.I changed I wanted to verify the zone transfer from ...
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2answers
205 views

Is it possible to set up multiple local domains on localhost in Ubuntu 14.04?

I need unique, multiple domains all linked to my computer's local ip address. This is for testing purposes. I want to be able to have different local domains linked to different html files on my ...
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62 views

DNS sometimes stops working, resetting wifi helps for a while

Got a bit of a strange issue here, My wifi seems to work just fine for about 3 minutes allowing me to browse the internet, ssh etc. Then it stays connected but does not resolve any new websites I ...
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1answer
139 views

How to access websites from my web server remotely?

I am new to creating and managing dedicated web server. I have installed Ubuntu Server 14.04 LTS on this machine with LAMP and SSH packages. I created some testing sites, and they work if I try to ...
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30 views

DNS works randomly on internal Network

I am sorry for the title already but I couldn't find anything better. Basically what I have is that I am on a network ad-hoc, an internal network created via a router to which I have all access I ...
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1answer
59 views

Ubuntu server + Dynamic DNS

I've got a Ubuntu 14.04 server running with an Dynamic DNS client. I'm using Dynamic DNS because my ISP changes my WAN IP once in a while. I made a no-ip.org DNS name to connect remotely to my ...
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809 views

Connection timed out; no servers could be reached error

While trying to ping www.google.com I was getting the error: ;; connection timed out; no servers could be reached I was neither able to run sudo apt-get update and nor able to access any ...
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1answer
108 views

Use /etc/hosts to direct wildcard domain name

I searched this term and didn't find my answer: "wildcard domain name in hosts" I have a HostGator account where I create secret domains so I can build and test websites. In order to use them, I add ...
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57 views

unable to resolv host name ssh google.com ubuntu

I am getting error when using ssh google.com saying could not resolve host address. I think my dns is not properly configured but how do i fix it, i tried many suggestions but cannot fix it i don;t ...
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17 views

Unable to access institute website on institute lan

I'm unable to open my institute website (including the main website, library website, webmail login) on my institute LAN or WiFi connection on my laptop. I'm, however, able to open every other ...
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0answers
49 views

I can browse any website except of Facebook and Youtube

I have Ubuntu and archlinux running on different boxes. Along with and Android phone. which i can't open Facebook or Youtube in the browsers (Firefox, Chrome). Error message: Server not found. I can ...
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1answer
82 views

Can't access Outlook.com from Ubuntu

I did a clean install of of Ubuntu few weeks ago (was working on Windows10). I am facing this totally frustrating problem. I cannot access my hotmail/outlook account. I get to the site, i enter my ...
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0answers
61 views

How to prevent ISP DNS from appearing in resolv.conf with a VPN connection?

Ubuntu 15.10 and dns=dnsmasq is commented out in /etc/NetworkManager/NetworkManager.conf OpenVPN through NetworkManager. Before I connect to a VPN /etc/resolv.conf contains nameserver 2xx.xx.xx.xx &...
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0answers
120 views

Unable to access network err_network_changed

I get this on Chrome under Wiley more and more. I have reset my router and cleared the cache. Any ideas on what is causing it? Under windows it is a DNS lookup error I think.
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0answers
70 views

OEM install asking for nameservers after oem-config-prepare

I'm trying to create an install image of server 15.10 that I can deploy to a few dozen machines by running through the OEM install, customizing packages and settings, then running "oem-config-prepare"....
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1answer
66 views

How do I change nameserver in Ubuntu?

How can I change my nameserver but WITHOUT changing any file by hand, which command do I need to use for it? root@ubuntu-1gb-nyc2-01:~# cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc ...
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1answer
156 views

Assigning a static IP to Ubuntu Server 14.04 to access ownCloud out of the server

I'm a new Ubuntu user and I did this steps recently, with 'AskUbuntu' support: - installation of Ubuntu, ownCloud server + client, Oracle VirtualMachine - configured ddns (duckdns.org) - port forward, ...
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0answers
40 views

Can not connect to my public IP

I'm still a linux newbie and did something wrong with pptp configuration and now I can not access my computer with public IP. I wanted to configure a pptp vpn for my computer with pptpd, but i must'...
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0answers
74 views

Very slow DNS resolution only on SSH

The question seems trivial, but I've already unsuccessfully tried some common solutions. I'm experiencing a very slow SSH connection to any server using a domain name, while it's always very fast ...
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0answers
34 views

hosts-files and/or dnsmasq does not work properly or is it? Xubuntu krnl 4.2.0-23

What is my problem? If I PING facebook.com (127.0.0.1) 56(84) bytes of data. but if I PING oglaf.com (208.113.148.140) 56(84) bytes of data. 64 bytes from ps1646.dreamhost.com (208.113.148.140):...
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1answer
73 views

Unable to change file attributes (e.g. immutable) on /etc/resolv.conf

I noticed that the network manager frequently changed my DNS server, so I wanted to set the immutable bit on the /etc/resolv.conf file, which didn't work. I noticed that the /etc/resolv.conf file is ...
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18 views

point the domain to the real folder when there is another config use ssl certification

i have an ubuntu server on digitalocean i'm using apahce2 the problem is i have three domain one of theses config file has ssl certification and when i'm on the browser and i use https with any ...
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0answers
59 views

lxc container not resolvable with IPv6

I set up a container on Ubuntu 14.04 trusty. The container also uses Ubuntu 14.04 trusty as template. The network is set up as bridged. My network interface from the hosts (eth0) is bound to the ...
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1answer
121 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 ...
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18 views

Failed to Set Name Server Ubuntu 14.04 LTS

I am trying to setup my server as a name server but it is failing. I've created A record and NS Record. After that, when i tried dig from internal it succeeded, but when i tried dig from external ...
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1answer
83 views

*OpenIMSCore* Fail to restart bind9 in the installation step

I have problem in installing the OpenIMSCore. I use ubuntu in VM Machine and followed the following posts to install OpenIMSCore Installing an IMS network heart. I went through all the first steps and ...
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0answers
58 views

how to configure a dynamic DNS to use ownCloud with wired connection

I'm a new Ubuntu user, trying to install ownCloud. To do this I need to create a dynamic dns following instructions by 'NO-IP.COM' I did this using the tutorials below, but there is a step I can't ...
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47 views

Setup of Godaddy domain in Ubuntu EC2 instance

I bought a domain from GoDaddy and I want to use it with my EC2 instance. I already created my instance (ubuntu 14) I created my elastic IP in Route 53, which I associated with my instance. I ...
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46 views

Block HTTPS site

Can anyone recommend an effective tool to block some https websites with ubuntu server? I want to use the server as a gateway for the users. A detailed guide would be highly appreciated. Thanks
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74 views

Problems adding an interface to resolv.conf

I'm having problems with my network, and it it just with Ubuntu. If I do: ping www.google.com ping: unkown host www.google.com But: ping 64.233.198.147 Gives me ping. Info: Ubuntu 15.10 ...
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40 views

Site works from localhost not from lan/internet

So i'm an ubuntu novice so be patient with me :) Just installed ubuntu server 14.04. Installed all the shebang ssh, php, mysql, it all works. I setup a new ddns account to avoid having to call the ...
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70 views

Configuring Home Network DNS/DHCP Server

To start off, I don't have a whole lot of knowledge of networking, which is why I'm trying to learn by example. I recently just built a new computer to toy around with new projects. This machine has ...
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0answers
29 views

Ubuntu 14.04 server & bind9 sleep issue

I am new to this dns server thing but through tutorials online I managed to create DNS server using bind9. But I am facing weird issue not found any solution on internet. I have my DNS server on 192....
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1answer
110 views

You don't have permission to access / on this server

I have a strange problem with my web server throwing the above error from a local machine on my network. If I access the remote server through its ip address, 192.168.0.2, I get the default index.html ...
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1answer
30 views

Manually Searching DNS

I am trying to track down a host in our network but only know part of it's name. I know it would be in DNS but I don't want to have to sign into those servers and look through the config. Is there an ...
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0answers
17 views

dnsmasq - can I setup mutiple dhcp ranges, where the range a client gets is based on the 1st part of their hostname?

I have an Ubuntu 14.04 server serving DNS/DHCP with dnsmasq. I have multiple system's some with static IP's and some using DHCP. this all works fine. I have other machines being built up with PXEboot ...
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0answers
48 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 ...
2
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2answers
66 views

Everything but ssh does not connect over the internet

I am having trouble getting my Ubuntu server to connect to the internet. To be clear, LAN works perfectly. I am running 14.04 LTS. I cannot ping Google.com yet ssh works over the internet as well as ...
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1answer
122 views

How to Change DNS of network from Terminal? [duplicate]

I know how to change the DNS of my network from GUI Network Manager: Right click on the network manager icon in the panel and choose "Edit connections..." Select your connection from the wired or ...
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1answer
134 views

Unable to resolve DNS queries

I have an Ubuntu 14.04 host and have a 15.10 server running in virtualbox. This is all a fresh install that I completed 3 days ago. When I logged in last night to run "apt-get update", nothing ...
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0answers
35 views

Setting wlan static ip for ubuntu 14.04 laptop

I have read related links and followed them.. standard solutions of editing /etc/network/intefaces have worked fine on other laptops but not working on one of my laptops.. Here is my /etc/network/...
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0answers
13 views

Can't connect to my class network

For some reason I can't connect to my computer science class network. We all have our own UN and PW. I have no problems connecting to other wifi networks. I tried to change to IPv4 settings too but ...
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0answers
85 views

Dns probe finished no internet, mobile broadband Ubuntu 15.10

I try to connect my internet dongle to Ubuntu 15.10 as usual step that carry out in creating new connections in Ubuntu. But I see strange behavior are they, I can't choice preferred connection type ...
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1answer
161 views

Slow hostname lookup: curl slow, sudo slow, browser slow

my problem is similar to other slow host name lookup issues, but I failed to find a working solution. The main effects are a slow sudo command a very slow DNS resolution in all browsers. I guess that ...
0
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1answer
284 views

Ubuntu 15.10 can ping IP and host name from terminal but not connect in browser

I just started a new job and have Ubuntu 15.10 on my work computer. We rely a lot on a local network/share drives and while I can ping both the IP and host name (i.e. 'suite' is what it's called here) ...
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0answers
160 views

Webmin can't start bind9: 'Unknown error'

Ubuntu version: 14.04.1 LTS x86_64 Bind version: 9.9.5 Webmin version: 1.780 For a while now, I'm trying to configure bind. First one as a slave to our current Windows DNS Servers which all works ...
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0answers
53 views

Openvpn : Local internet and remote DNS

Here what I want to do : Access to a remote network through OpenVPN Use client gateway to access internet (so I DON'T want to redirect all through VPN) Use remote DNS through VPN, because I have ...