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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1answer
16 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: ...
1
vote
1answer
20 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 ...
1
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0answers
10 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 ...
1
vote
1answer
3k 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 ...
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0answers
13 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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0answers
8 views

Handling Sub-Domains [on hold]

I have been trying to make heads or tails on this issue and get more confused about the topic the further I search for it. I am in the process of migrating an old (Windows Server 2003-based) data ...
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0answers
15 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 ...
1
vote
1answer
44 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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2answers
43 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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0answers
23 views

Slow network for same sites [on hold]

Various sites too slow and in many cases not open as the site of the chrome web store, Youtube. I tried this ~ nm-tool | grep DNS DNS: 127.0.0.1 DNS: 192.168.25.1 DNS: ...
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2answers
20k views

How do I allow all possible IPs for Gmail servers through my ufw firewall?

I am currently using the following rule: ufw allow out from my_local_ip to any port 587 This is a little too lax for my liking. I would like to tighten it up and restrict it to only gmail's smtp ...
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0answers
17 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 ...
0
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1answer
27 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 ...
0
votes
1answer
32 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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0answers
312 views

How can I setup BIND to use different forwarders depending on the client?

Hopefully this is possible, I'm trying to set up forwarders depending on the client preforming the DNS query. It should look something like this: 192.168.1.10 -> forwarders = 1.1.1.1; 1.1.2.2 ...
0
votes
1answer
24 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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0answers
30 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 ...
60
votes
5answers
173k views

Command-line to list DNS servers

Is there a command to list dns servers? I tried $ cat /etc/resolv.conf # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8) # DO NOT EDIT THIS FILE BY HAND -- YOUR ...
1
vote
1answer
36 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. ...
0
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0answers
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 ...
1
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0answers
33 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 ...
0
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0answers
11 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 ...
1
vote
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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0answers
38 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 ...
2
votes
0answers
656 views

How do I get rid of OpenDNS?

Some months ago I set up OpenDNS. Since then, occasionally I get slow page loads and pages that redirect to a timed-out opendns page. I would like to see if removing OpenDNS will make browsing ...
0
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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 ...
0
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0answers
17 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 ...
1
vote
1answer
12k views

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

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 ...
1
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0answers
20 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 ...
3
votes
2answers
388 views

If I am behind a router, how do I edit DNS resolution?

Should I edit resolv.conf in my machine, or leave it 192.168.1.x and change something in the router? If in the router, how?
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0answers
17 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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0answers
10 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 ...
0
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0answers
28 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: ...
1
vote
1answer
50 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 ...
0
votes
3answers
5k 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
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 ...
0
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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 ...
2
votes
3answers
4k views

How can I connect to remote windows domain knowing gateway hostname and domain name?

I have received credentials for my University's network machine (Ubuntu yay!) that I have ssh access to. I would like to connect to it but first I need to connect through a gateway that I have ...
1
vote
2answers
317 views

Ubuntu error/bug in which all DNS records have the same strange IP class

First off all, I want to say that I'm not new to Ubuntu, and I primarily use it as a gateway server. I have Ubuntu 12.04 LTS server without a GUI. These days after a big storm, I had a power outage. ...
0
votes
1answer
4k views

dns configuration problem bind9

Following is my bind9 configuration the domain I want to configure is home.lan it is home network /etc/bind/named.conf.local is following zone "home.lan" IN { type master; file ...
4
votes
2answers
6k 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
0answers
29 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 ...
5
votes
3answers
151 views

Use same dns server for all (future) connections

I'm wondering if it is possible to specify, that all connections (even future, like when using wifi at some other place (=different SSID)) will be using pre-defined DNS server When I have some ...
0
votes
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 ...
0
votes
0answers
40 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 ...
0
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0answers
14 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 ...
11
votes
6answers
31k views

Best way to set up DNS caching?

In order to speed up DNS lookups, I want to install a DNS cache or proxy. I can see at least three programs I think will do the job: bind9, pdnsd, or dnsmasq. I would like to make sure that if I ...
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0answers
840 views

DNS Look up failed - Ubuntu 12.04

I have this problem, which seems to be a 'common' problem on Ubuntu. When I try to open some pages on chromium I get the "DNS look up failed" error. (It doesn't say exactly that on Firefox but it's ...
0
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0answers
63 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 ...
0
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0answers
55 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 ...