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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Client Hostname, not FQDN, not IP Address, in Thunderbird headers

When sending email from Thunderbird from behind NAT, the headers contain the local IP address of the client, not the hostname. This is (the result of) what Outlook Express would send: Received: from ...
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2answers
26 views

Can't Add Nameservers 16.04 LTS virtual install

Just did a fresh install of 16.04 LTS in virtual mode on Hyper-V... having trouble getting DNS resolution... Finally got network working by using ifconfig add eth0 10.0.0.1/24, added default gateway ...
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1answer
37 views

Trouble Joining an Active Directory Domain

I'm trying to join an Ubuntu 16.04 server to a Windows 2003 R2 domain by following the Ubuntu SSSD and Active Directory Guide. My admin says that from the controller side, it is part of the domain. ...
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22 views

How to setup DHCP relay in ubuntu?

I am new in Linux, so please ignore if my question is silly. I am setting up 4 machines. Two machines are the servers and two are client computers for testing purposes. I am using my Ubuntu machine as ...
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0answers
10 views

Google Domains DDNS with DDclient on Ubuntu

Evening everyone, I asked the same question on stack overflow here however it has been a several days and almost no views and no hints. I am using ddclient to update google domains with my ip. ...
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0answers
16 views

DNS is not working

When I am trying to nslookup the www.google.com from my server it is not getting resolved. But when I am providing DNS IP, after nslookup command it is getting resolved. [root@XYZ ~]# nslookup www....
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0answers
7 views

How can I make OpenVPN run two --up scripts?

Im running uBuntu and I have a OpenVPN connection to my VPN provider and it runs a upscript that starts transmission and a few other things and a --down script that closes it etc. But its leaking DNS ...
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0answers
8 views

DNS can't reslove hostnames on lan, wrt1043nd

How do I configure DNS server on my router(DNS:94.140.66.250 , 84.20.224.66) so It will be able to resolve local hostnames.
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19 views

Can't Set Static IP - Ubuntu 14.04.03 - Server

I am configuring a few servers all with the same basic configuration. We first set the DNS/Domain in /etc/resolvconf/resolv.conf.d/base cat /etc/resolvconf/resolv.conf.d/base domain domain.com ...
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16 views

how can I configure server for dns cache for my ISP

I want to configure server for public users to use my dns sever and my server can cache all ip and domain name to better responsibilies
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1answer
53 views

how to use a router as DNS server? [closed]

While this solution seems to work fine, can I instead just use the NetGear WNR1000v2 - N150 Wireless Router itself as a DNS server? (I had an odd circumstance where the VOIP phone worked fine, but ...
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1answer
33 views

Using EasyDNS on a dedicated server - stuck

I recently built a dedicated server with Ubuntu 16.04 and the only thing left to do is set the DNS/Nameservers on it to start hosting other domains on it. I'm getting really confused about what to do ...
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30 views

bind9 + dhcp clients

I've got a working bind9. I followed this tutorial to setup. It works fine with all static IP, that I fix in /etc/bind/db.* files as tutorial recommends. My router enables DHCP also and there are many ...
0
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1answer
61 views

Ubuntu Server DNS/Nameserver setup

I have purchased a dedicated server and had Ubuntu 16.04 installed. I have set everything up that I need, including the firewall and control panel which is server pilot. I plan on using this ...
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0answers
27 views

How to setup Dnscrypt with a DNS cache service?

I wanted to setup dnscrypt but the dnscrypt-proxy manpage says I shouldn't run it without a dns cache service like dnsmasq or unbound. As far as I know Ubuntu doesn't have a working dns cache service. ...
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0answers
25 views

DNS lookup failed

I have an ubuntu VPS running apache2 with all php5 packages, mysql and phpmyadmin installed. I was following a tutorial to set up something and a required command was "a2enmod rewrite". After I ...
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0answers
51 views

Avahi-daemon keeps disconnecting me from the network [Ubuntu 16.04]

I've been having this problem for a few days where my ubuntu machine was getting disconnected from the network and I finally managed to track down the cause to this: Jun 11 10:40:19 nvidia avahi-...
3
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1answer
64 views

Setting Up External DNS and Nameserver Through GoDaddy On a Dedicated Server

I have setup a new dedicated server running Ubuntu 16.04 and Server pilot, Example IP of 111.222.333.444 I purchased a domain through GoDaddy, will call this example.com. I created 2 Hostname ...
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0answers
16 views

Accessing port forwarded server with domain name instead of IP address

Recently, I set up an Ubuntu desktop 16.04. I want to use it as a web server, FTP server, email server also have SSH access (All this is just for learning purpose for now). I have internet connection ...
0
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1answer
71 views

Static DNS in Ubuntu Server 16.04 [duplicate]

I am a complete new-be when it comes to Linux and even more so when it concerns Ubuntu. I want to configure the IPv4 settings to have automatic assigning of IP address but manual assigning for DNS. ...
0
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2answers
103 views

Problem with DNS in the latest Kubuntu 16.04 update

Today I install Kubuntu 16.04, again, because I'm having trouble to navigate. I have tried all kinds of browser, and with all I have the same problem. Sometime when I open a page, I received these ...
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0answers
25 views

Opendkim key not found

I've been trying to setup DKIM on my VPS with the help of this article, but when I test the installation, I get a opendkim-testkey: No key Below the config files: /etc/opendkim.conf # This is a ...
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0answers
34 views

External subdomain not resolving

We have a server that runs www.domain.com, which sends e-mail via smtp.domain.com (external). Some time during the last few weeks the server hasn't been able to reach the smtp domain and therefore ...
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0answers
47 views

nameserver problem for internet connection

I installed ubuntu 16.04 on a HP labtop. Right now, I can get access to wifi. For instance, ping 104.16.33.249 will return as PING stackoverflow.com (104.16.33.249) 56(84) bytes of data 64 bytes from ...
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2answers
41 views

How intelligent is OpenSSH when it comes to connecting to a domain that leads to your internal network?

I run Ubuntu on my personal machine, and have an network of servers on my local network at my house. I have a cloud server, and a software development server, as well as some others. My servers have ...
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1answer
102 views

Ubuntu 16.04 multiple NIC, bridge - Not getting br0 DNS settings

After a updated to Ubuntu 16.04 - which has mostly gone very well - everything works except resolving names from the host. Resolv.conf does not pick up dns-nameservers from interfaces (br0) for some ...
3
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0answers
86 views

Why Google ping (DNS server 8.8.8.8) in windows is faster than ubuntu 16.04 and Other Linux distribution?

I've read all the solutions regarding to similar problems existing in all the community and I've performed these options but none of theme work! I've checked the google ping both in linux and windows ...
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0answers
18 views

Ubuntu 14.04 server DNS in VirtualBox

I installed ubuntu server 14.04 in virtualbox. And I make DNS server. but there is a problem. I confirm my domain name using 'nslookup' command and my virtualbox ubuntu server's ip address. And I can ...
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0answers
36 views

Why does DNS resolution not work on the first try?

Ever since upgrading to 16.04, DNS resolution fails (returns Host Not Found) on the first attempt for any website. I can then immediately try it a second time and it works just fine. A little ...
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0answers
14 views

Proxy stopped working after setting static IP

I loaded 14.04 LTS from disc. Network Manager set to AUTO. Added proxy to apt.conf. Firefox and apt-get worked fine. Network Manager set to MANUAL. Switched to static IP. Added gateway, name servers,...
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0answers
25 views

University Wifi DNS Problem

I hope you can help me on this problem because this is a major roadblock for me. Also sorry for any typos as I'm doing this via phone. For the summer, I am housing at a university that does not ...
2
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2answers
58 views

Get current DNS server on 16.04-server

Is there a simple command to find out which DNS server I'm using right now? Preferably without resorting to tcpdump or parsing log files? I found a lot of stuff about nm-cli and other nm-tools but ...
3
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0answers
54 views

Windows VS Linux when it comes to Internet [duplicate]

In my home the computers running Windows have no problem connecting to the WiFi we pay. However, my Ubuntu 14.04 fail to connect every 2-3 days. A reset of the router solves the issue, but that's very ...
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0answers
46 views

16.04 - Unable to resolve local hostnames without FQDN

I have been fighting with this for a few months. Initially could not get anything to resolve until I edited /etc/nsswitch.conf. Now, I can resolve the host.domain.local address, but not just host. ...
1
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1answer
45 views

Pointing a domain name to my home web server

So I have a home machine running Ubuntu Server 14.04 running an apache2 server. This machine is also running a Minecraft server. I set up my domain(example.com) host "A" type record with my WAN IP and ...
0
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1answer
19 views

Ubuntu Weird Internet Issue [USB/WiFi Tether]

i have an weird problem with internet connection (LTE Network Tethered over USB/WiFi) on my Ubuntu 16.4 Desktop. Webpages load slowly and pings are high when i do ping 4.2.2.4 or ping 8.8.8.8: ...
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1answer
35 views

Unable to nslookup deployed nodes on maas server

In the path toward establishment of an Openstack cloud I've already reach to the point that I must install juju and opensatck but the problem is a deployed node does not have access to the internet (...
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votes
1answer
94 views

Ubuntu ping results in 100% packet loss

I use ubuntu 15.10 and I can ping localhost, gateway (192.168.1.1) and 8.8.8.8 successfully, but I can't ping any other hostname/IP address(outside my network that is). It results in 100% packet loss. ...
0
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2answers
26 views

Testing DNS for samba to function properly - Ubuntu 14.04

I'm currently following a guide to set-up a Samba AD DC on Ubuntu 14.04 with a Raspberry Pi 2, here's the link: "https://jimshaver.net/2014/07/13/setting-up-an-active-directory-domain-controller-using-...
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0answers
37 views

How do I connect to my dns server (via gui)?

I'm on lubuntu 16.04 LTS, and want to connect using both ipv4 and ipv6. I'm a linux noob and don't understand the answer given here I prefer to change settings via gui, if thats possible. edit: ...
0
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0answers
35 views

nameserver in resolv.conf not getting updated

I'm trying to use a dns service on my xenial. I have added the following line to dhclient.conf. prepend domain-name-servers 208.67.222.222,208.67.220.220; After reconnecting or rebooting resolv....
0
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0answers
36 views

MAAS - Failed to get ip directly [ERRNO -2]

When running the Ubuntu Openstack Installer / Autopilot and am receiving the following error: Reason: "Error deploying landscape". Inside the commands.log file, there is a line which has lead me ...
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0answers
74 views

How to specify additional search domains for resolver in 16.04 when using DHCP?

With Gnome Ubuntu 14.04, it was possible to specify additional search domains for the resolv.conf, when editing a network connection, like so: But where do I find this field for the "additional ...
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0answers
57 views

16.04 XUbuntu - OpenVPN losing DNS after a couple minutes

Stock install of Xubuntu 16.04. Followed this guide to install OpenVPN for Network Manager, and to download the certs and opvn files for PIA VPN: https://www.privateinternetaccess.com/forum/...
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0answers
54 views

How to control startup options of dnsmasq?

I'm on Ubuntu 16.04 Xenial and Network Manager started dnsmasq for me with these options: ~/ ps awux|grep dnsmasq nobody 2649 0.0 0.0 54488 3588 ? S Mai23 0:00 /usr/sbin/dnsmasq --...
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0answers
27 views

Ubuntu server- static ip has changed

I have set an ubuntu server 16.04 today. I have set static IP in /etc/network/interfaces to this: #The primary network interface auto enp0s3 iface enp0s3 inet static address 192.168.56.20 netmask 255....
0
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1answer
51 views

NTP without DNS

I have a box running ubuntu 10.04 x86 & it's isolated by necessity from a lot of the network. It is blocked from DNS. I'd like it to keep accurate time, so I've configured NTP with several ...
0
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0answers
22 views

Is it possible to add custom A or CNAME records into zone controlled by MAAS 1.9.2?

I'd like to add a few DNS records to a MAAS controlled zone for deployed services to have nice looking URLs. The zone is not a temporary .maas or anything like that, it is a subdomain of our company ...
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0answers
25 views

container error in juju ok in lxd 'even the latest' version

I get some trouble to deploy container ... i can ssh them in lxc but the unit stay in "STATE DNS:ERROR" juju debug-log show nothing ? thanks in advance JP
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0answers
51 views

DNS problems in Ubuntu 14.04

My current /etc/resolv.conf looks like this: nameserver 192.168.1.254 nameserver 10.23.0.1 search home My basic problem is that I want to use different nameservers, such as Google's nameservers, ...