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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81
votes
6answers
228k views

Command-line to list DNS servers used by my system

Is there a command to list dns servers used by my system? I tried $ cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE ...
4
votes
3answers
38k views

ping: unknown host google.com in UBUNTU SERVER [duplicate]

I use Ubuntu Server 12.10. Why if I try: ping google.com ping bitbucket.org or any other website I have: ping: unknown host google.com ping: unknown host bitbucket.org EDIT: ...
0
votes
0answers
8 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 ...
0
votes
0answers
9 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 ...
2
votes
1answer
6k views

How to resolve the DNS locally when there is a proxy configured?

If I configure the proxy, under Settings -> Network -> Proxy, and then try to access "http://google.com", the name resolution (IP of google.com) will happen there, at the proxy server but... How can ...
0
votes
1answer
5k views

Unable to connect to internet using android wifi tethering (hotspot) in Ubuntu 14.04

I'm unable to connect to internet when using android WiFi hotspot (I'm able to connect to hotspot, but not able to access Internet). When I use a WiFi router internet works fine. In chrome I get ...
19
votes
3answers
13k views

nslookup finds ip, but ping doesnt

I know this looks like all the other "can ping via ip but not dns" questions, but those didnt really help me at all. Also, having hosts files in all machines is not doable as this server will ...
1
vote
3answers
7k views

How can I use bind9 to use my own custom domain in my LAN?

I'm new to DNS and making a DNS server. I've read through the bind9 server how to (at https://help.ubuntu.com/community/BIND9ServerHowto) and several tutorials online on setting up a bind9 server in ...
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 ...
0
votes
0answers
10 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 ...
-1
votes
1answer
21 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 ...
0
votes
1answer
65 views

Problem accessing the DNS

I am using rtmpdump to download streaming video. But getting error like this ERROR: Problem accessing the DNS. (addr: __________). if some one can help please reply urgently.
0
votes
0answers
14 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 ...
0
votes
0answers
16 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 ...
0
votes
3answers
6k views

No internet connection (DNS server address is Router address)

My internet connection in Ubuntu 13.10 doesn't work. I can use IP addresses to open websites but not URLs. The DNS server that I connect to is the IP address of my Router. When I connect to the VPN of ...
0
votes
0answers
12 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
6
votes
1answer
436 views

14.04 Resolving Host (DNS) Problem

EDIT: Could not solve the problem. After 7 years, I am going back to Windows. I have an Asus Zenbook UX32V. I installed Ubuntu 14.04 and now I cannot browse the Internet. When I connect to a ...
0
votes
0answers
26 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 ...
0
votes
0answers
22 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 ...
4
votes
1answer
8k views

Using Ubuntu 14.04 as router with iptables, clients can't go online. Probably DNS issue, iptables setting needed

CORRECTION 3: SOLVED! I needed to add the the official DNS server of my departement's VLAN as DNS to the clients. I've read through a large number of posts about iptables issues when using Linux as ...
0
votes
1answer
21 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 ...
0
votes
0answers
43 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 ...
0
votes
0answers
17 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 ...
0
votes
1answer
49 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 ...
0
votes
0answers
15 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 ...
1
vote
0answers
38 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
votes
1answer
4k views

Regenerate resolv.conf from dhclient.conf without releasing/renewing IP?

When I make changes to dhclient.conf such as modifying the DNS search path (so that the changes don't get lost on reboot or DHCP renews), how do I regenerate /etc/resolv.conf? That page suggests ...
6
votes
4answers
15k views

Adding additional DNS search domains when using DHCP

How can I add additional DNS search domains to a network connection which is configured using DHCP? At work, we have several sub-domains (test.example.com, dev.example.com, etc), and I've grown tired ...
13
votes
1answer
34k views

what does the dns-search option mean in /etc/network/interfaces

Can anybody explain to me about the dns-search directive in /etc/network/interfaces file: iface eth0 inet static address 192.168.3.3 netmask 255.255.255.0 gateway 192.168.3.1 ...
12
votes
7answers
42k views

How to view the DNS address assigned by DHCP?

How to view the DNS address assigned by DHCP? ifconfig can not show it. $ ifconfig -a eth0 Link encap:Ethernet HWaddr 90:e6:ba:22:6a:f2 inet addr:192.168.1.111 Bcast:192.168.1.255 ...
0
votes
1answer
604 views

customized Ubuntu 14.04 - DNS doesn't work

I've made a Ubuntu 14.04 VM, customized it a bit (apps, etc), and created an .iso via REMASTERSYS. I then made a bootable USB w/ unetbootin. The DNS works on the VM and on multiple laptops in the ...
1
vote
2answers
41 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 ...
0
votes
0answers
67 views

No DNS in remastered Ubuntu

I remastered a (x)ubuntu 14.04 ISO. Manually. Everthing works fine, exept I have no DNS. Is this a known but and is there a solution?
0
votes
1answer
50 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 ...
2
votes
1answer
23k views

SSH: Could not resolve hostname user@host: Name or service not known with my connection [closed]

I have a problem to connect a server using ssh. I got the following error message: ssh user@host SSH: Could not resolve hostname user@host: Name or service not known with my connection Also, if ...
0
votes
0answers
40 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 ...
0
votes
0answers
23 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 ...
1
vote
1answer
52 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
votes
0answers
12 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 ...
0
votes
0answers
44 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 ...
0
votes
1answer
55 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) ...
0
votes
0answers
32 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 ...
0
votes
0answers
13 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 ...
0
votes
1answer
43 views

ddclient with google domains dynamic DNS to ssh into my desktop

So I want to be able to SSH into my home desktop. I set up port forwarding on my router, and was able to ssh into my machine ssh alex@2601:647:4802:b000:e938:d8b5:6111:e0fb When I restart the ...
1
vote
1answer
63 views

why am i unable to access internet even with being connected to network?

ive read through similar posted questions and have not gotten any consistent results. i have a lenovo laptop, with windows 10, i just installed ubuntu 15.10 beside windows. everything seems to work ...
0
votes
0answers
5 views

Not able to disable DNS Linode ubuntu

I have disabled DNS from linode DNS Manager But still it is accessible via url why? How to disable it?
1
vote
1answer
23 views

Making site live on linode ubuntu server

I am creating virtual host -- For that I have followed below Url details set-up-apache-virtual-hosts-on-ubuntu I have created virtual host of name raveesmake.com also restarted apache server. When ...
0
votes
0answers
17 views

After few minutes of browsing internet I cant browse internet

After browsing internet for few minutes I get resolving host problem. I ran route before the outage and I got Kernel IP routing table Destination Gateway Genmask Flags Metric ...
12
votes
12answers
6k views

Can't browse the internet nor ping a host, but dig works

I am not able to browse any websites. Please take a look at the following error: karthick@karthick:~$ ping www.google.com ping: unknown host www.google.com Update ...
0
votes
0answers
59 views

How do you fix DNS_PROBE_FINISHED_NO_INTERNET

I am running Ubuntu on a lenevo x1 carbon. My WiFi and internet is working on my Android and windows devices but not Ubuntu. When trying to use an internet browser I get the following error. ...