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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428 views

How to solve “wget: unable to resolve host address” [closed]

I am running this as root: # wget http://prdownloads.sourceforge.net/sourceforge/nagios/nagios-4.0.1.tar.gz --2015-11-17 20:31:46-- ...
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votes
1answer
48 views

apt-get update hangs on a repo addr that should be responsive [duplicate]

--DUPLICATES apt-get stuck at 0 [Connecting to us.archive.ubuntu.com] --RESOLVED same as in link above... general env ( a new isp 2 weeks ago 'web-pass.com' ) ubuntu 12.04 no local dns cache ( ...
1
vote
1answer
1k views

intermittent error while browsing on chrome DNS_PROBE_FINISHED_NO_INTERNET

On ubuntu 15.10 while browsing with firefox or chrome i randomly get this error and then i have no internet unless i reconnect to the wifi (or reboot) the error > DNS_PROBE_FINISHED_NO_INTERNET Does ...
0
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1answer
231 views

RDP unable to connect Remmina/Ubuntu 14.04

Remmina had been connecting to my RDP service for several months, until it just stopped. It will still connect by IP address. Ping confirms that the domain name resolves to the proper IP, and nothing ...
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0answers
33 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 ...
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0answers
1k views

curl: (7) Failed to connect to SERVER port 80: No route to host

Please help me to understand. I am currently try to set-up Parsoid with this guide. It is needed for the MediaWiki extension Visual Editor. After the installation of the Ubuntu repositories I ...
1
vote
1answer
207 views

Two NICs and routing between the interfaces

I am having a problem with an Ubuntu server running two NICs on two different subnets androuting between them. We are running a Nginx server as a reverse proxy with a public subnet and private ...
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0answers
43 views

sharing ethernet connection by preserving external DHCP server

I am currently using two workstations at the University, but I only have one single ethernet cable providing internet connection. One of the two workstations (running Ubuntu 14.10) has two ethernet ...
0
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1answer
142 views

Samba PDC Intenal DNS Forwarder

I have setup a Samba PDC using the following guide: https://wiki.samba.org/index.php/Setup_a_Samba_Active_Directory_Domain_Controller I have opted to use the internal Samba DNS server and have ...
0
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1answer
19 views

How to manage sub-domains on Ubuntu

I have an Ubuntu server with the following domains: sub-staging.example.com sub.example.com While testing the site via mobile, I noticed the phone would force the url to: www.sub.example.com ...
0
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1answer
46 views

My DNS settings constantly set itself to default

I execute sudo gedit /etc/resolv.conf on terminal and when opened I modify the nameserver 127.0.0.1 to nameserver 8.8.8.8 nameserver 8.8.4.4 but it resets to the unmodified version after ...
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0answers
87 views

System freezes during boot after failed upgrade

I was running an upgrade from Ubuntu 15.04 to 15.10. About 80% of the way through KDE crashed and the system became unresponsive. I restart and now the system hangs during boot and I am unable to drop ...
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0answers
74 views

DNS not resolving using Docker + Vagrant on Ubuntu 14.04

I've enabled my-example.com in a Docker container running apache2 on vagrant running on top of native ubunutu 14.04. In the Vagrantfile I've mapped Vagrant port 80 to 8086 on the Ubuntu host ...
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0answers
25 views

Recursive query in Bind

I want to setup a recursive DNS server with bind and don't want to forward queries to another DNS servers.(every query be recursive) How to setup it? Thanks.
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0answers
174 views

Ubuntu Server 14.04.3 NAT DNS Configuration

I have a Ubuntu Server 14.04.03 configured as a NAT Gateway using ISC-DHCP-Server. There are around 50 client PCs that access the internet through it, most of them running Windows. I want to use the ...
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2answers
416 views

How do I allow DNS through interface filtering using iptables in Ubuntu Headless

I've seen some questions referring to static DNSs, openVPN server pushes etc, but none of them really apply or they require GUI tools and I am using a headless Ubuntu Core that I SSH into. ...
1
vote
1answer
178 views

resolvconf Error when running dhclient in recovery mode

when I go to recovery mode and I want to activate networking, I usually type: dhclient eth0 After this, I can for example ping to www.google.com. However, I get the following error: RTNETLINK ...
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0answers
151 views

Bind9 nor working - SERVFAIL Ubuntu 14.04

Hi I have an issue trying to configure my Bind9 service. here the result of dig command: ; <<>> DiG 9.9.5-3ubuntu0.5-Ubuntu <<>> smx.local ;; global options: +cmd ;; Got ...
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0answers
66 views

VPN with openDNS issue?

So I had a DNS leaks and I decided to fix that. Im using ra4wvpn, and openDNS (I configured only my machine, not the router if this is important info). When I'm without the VPN I have no problems. I ...
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0answers
56 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
votes
2answers
122 views

How to edit /etc/hosts file [duplicate]

How to you edit the /etc/hosts file? My father put every video site on the internet on and he won't tell me how to get rid of it. I need an answer because tinypic and youtube are on it!
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0answers
85 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. ...
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0answers
18 views

Please explain the difference in nslookup replies

When I choose my ISP's nameserver and do this: set q=ns . then in ADDITIONAL section I can see root servers IP's. When I perform the same check on my BIND, I don't get to see the IP's. Not like it ...
1
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1answer
126 views

14.04 - DUC doesn't update correctly the IP with VPN at startup

I'm running an Ubuntu 14.04.3 LTS server that launches a few things at startup, two of them being OpenVPN for my VPN service and a Dynamic DNS Update Client to update my noip host to my current IP. ...
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0answers
357 views

Resolving Host in All Browsers

I'm a Linux newbie having serious connection problems in Ubuntu 15.04. Seemingly at random, all internet-related functions of my laptop stop working. Both Firefox and Chrome get stuck on "resolving ...
1
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1answer
440 views

/var/run/dnsmasq/resolv.conf nameserver contents

Xubuntu 15.10 using Ethernet From my understanding, /var/run/dnsmasq/resolv.conf should contain the nameservers used by dnsmasq to resolve addresses and is configured by a script called by ...
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0answers
609 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
vote
1answer
118 views

dnsmasq resolver on different port

Im trying to use dnsmasq in conjunction with dnscrypt. I can't get dnsmasq to work with a server being a local address / non dns port. Is this possible? I've tried setting dnscrypt to 127.0.0.1 ...
0
votes
1answer
54 views

How to setup bind9 as simple name resolver?

What? I want to setup my own dns resolver. For everything that is not in 192.168.178.0/24 forward it to google dns (8.8.8.8 and 4.4.4.4 as fallback). So I just want to setup the nameserver of every ...
2
votes
0answers
32 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 ...
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0answers
80 views

High packet loss on Ubuntu 12.04.5 with working router

I am unable to connect to the internet on my Ubuntu 12.04 box using DHCP with a reserved IP address. There are a few facts that make this particularly mysterious: The router formerly seemed to ...
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0answers
99 views

Wired/Wireless connects and disconnects repeatedly

What I have tried: First thing I did was remove Ubuntu 15.04 and did a clean install via USB of Ubuntu 14.04. (Note: on all other computers that I have installed Linux on the network has started ...
0
votes
0answers
77 views

Ubuntu 14 - static IP - Connected but no internet

I have Ubuntu dual-booted and windows 7. The ethrenet connects not problems on windows 7 and a few days ago it was working fine on Ubuntu. I was and am using a static IP. I thought maybe a driver ...
6
votes
1answer
1k views

14.04 Resolving Host (DNS) Problem

EDIT: Problem solved with 16.04. I have an Asus Zenbook UX32V. I installed Ubuntu 14.04 and now I cannot browse the Internet. When I connect to a wireless network everything is fine for 2-3 minutes ...
0
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0answers
174 views

How should I configure DNSMASQ for an IPv6 environment?

Id like to deliver IPv6 addresses (thats easy) and resolve DNS requests for Internet and local IPv6 clients (that's difficult), but I'm missing a comprehensive guide how to do this with DNSMASQ. There ...
0
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0answers
11 views

Is routing and maquaridng with virtual intfaces possible?

I'd like to connect two subnets by an Ubuntu server, but the machine has only one Ethernet adapter. The server should provide DHCP and DNS cache for the internal network by DNSMASQ. I'm not able to ...
0
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0answers
54 views

Name resolution not working

Installed Ubuntu 14 desktop a few months ago, in a dual boot environment. Everything was working fine till yesterday: accessing shared folders/files on windows/linux, browsing, printers, etc. Then I ...
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0answers
28 views

How to use DNS instead of /etc/hosts? [duplicate]

In /etc/hosts, I can for example input 127.0.0.1 example.com Now I have a nameserver (pdns with postgre-backend), which I want to use in the intranet. So, I tell my dns server, that example.com ...
0
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0answers
15 views

How to setup authenticaton for a DNS server with database users

can any one help me out here, I'm trying to setup a DNS server with authencation so that only ip address of database users will be allowed to use my Private DNS server. Thank you
0
votes
1answer
69 views

DNS goes missing with Static IP via NetworkManager

I know there's plenty of posts/threads/questions/tutorials regarding ubuntu's DNS, network manager innards, and changes in the like between versions ~12 to 14-15+. I'm on ubuntu 12.04, and looking to ...
0
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0answers
73 views

EZ-IPUPDATE behind NAT

I have my server behind a cable router which NATs everything at home. My router only works with dyndns, which does not have a free option, and my DNS is Zoneedit. I configured ez-ipupdate, but it ...
0
votes
1answer
100 views

Postfix doesnt know own hostname

in my postfix logs I often see that postfix failed to send an email to root@levinus [my hostname] because theres no DNS record for levinus. But in my /etc/hosts is an entry for levinus (--> 127.0.0.1 ...
0
votes
1answer
113 views

How do I prevent domains from resolving to a specific address?

When I misspell a domain name, the DNS servers of my ISP provider resolve the domain name to an IP address of a web server that tells you "we're sorry, the address you typed does not exist" together ...
1
vote
2answers
132 views

Do you really need to remove DHCP clients for static IP to stick?

The instruction from this link works to change from DHCP dynamic IP to static. But there's a step where it says: You need to also remove the dhcp client for this to stick (thanks to Peter for ...
0
votes
1answer
691 views

Cannot access Ubuntu web server site from outside network

So I've set up a LAMP web server on Ubuntu 14.04 server distro and installed owncloud as well as wordpress on it. It's connected to the web via ethernet and connectivity is good as far as I can tell ...
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0answers
20 views

lubuntu networking

I have installed lubuntu latest version in my network systems which have 15 systems, problem is when I open my crm page in any of the system only one system get connected to it, remaining systems ...
2
votes
2answers
380 views

Can I run a Ubuntu and Windows DHCP / DNS Server together in the same network?

I am just wondering if I can run both windows and Ubuntu DHCP/DNS Server in the same LAN. The Present configuration is Windows 2003 Server AD and Ubuntu DHCP n DNS Server with BINDS. I have proposed ...
2
votes
2answers
540 views

change DNS server in a non-persistent way (on the command-line) [ubuntu 14.04 - rescue mode]

is there a way i can change the DNS server on the command-line without having to change anything on the disk? i recently booted into the rescue session and i got an IP address (using DHCP) but no DNS ...
0
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0answers
22 views

would a DNS server help users find my web inside LAN [duplicate]

I have a linux box that works as a server and connects only to a LAN network, with the rest of its clients. If I type the IP address of the linux comp on any client's browser I land on this ...
0
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0answers
22 views

Google Properties don't load on my work network; other sites do

Often, when my laptop is on my work network, some Google properties don't load in FF. The search bar doesn't autopopulate results, navigating directly to www.google.com doesn't work, etc. I haven't ...