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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How to stop DNS attack in dns server [closed]

My DNS server is receiving hundreds of query request in every minutes from unknown users. How can I stop this?
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1answer
61 views

Set up NGINX and bought a domain. How to connect the two? [closed]

I have set up nginx on my vserver and it seems to be working properly. I also purchased a domain at nic.md Now it's asking me for NS host names and addresses. Googling did not help much. Do I need to ...
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0answers
37 views

ubuntu Server 12-04 can access lan but not internet [closed]

My Ubuntu server stop going to Internet, I can ping the server from the LAN but the server do not go to the Internet. ifconfig; br0 Link encap:Ethernet HWaddr 00:10:18:77:5e:46 inet ...
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2answers
1k views

docker.io DNS doesn't work, it's trying to use 8.8.8.8

I have a new Ubuntu 14.04 install, and want to use Docker to run my old stuff that needs 12.04. DNS inside Docker doesn't work. My laptop's resolv.conf looks like: nameserver 127.0.0.1 Which ...
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0answers
36 views

How to make rdnssd honor DNSSL from radvd?

My radvd.conf have the following lines: ... RDNSS 2001:4860:4860::8844 2001:4860:4860::8888 { }; DNSSL domain.com.br { }; ... All Mac OSX IPv6 clients recognizes that option and my domain appear at ...
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1answer
47 views

Static ip but dynamic nameservers?

Trying to change nameserver' settings for a Ubuntu-13.04 server I came upon this situation! /etc/network/interfaces : # This file describes the network interfaces available on your system # and how ...
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0answers
76 views

Smart DNS Server configuration on my Ubuntu VPS

I need to configure Smart DNS Proxy Server on my Ubuntu VPS so all people can connect to my VPS DNS and watch website content like overplay. I need expert help and detailed steps for how to get ready ...
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1answer
104 views

why does the “host” and “nslokup” command show the wrong IP?

On my Ubuntu 12.4 these work fine: $ hostname my-machine-XX ping `hostname` ping my-machine-xx (192.168.0.69) icmp_req=1 ttk=64 time=0.043 ms But host and nslookup return the wrong IP address: $ ...
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0answers
83 views

error in named configuration

I am getting the following error while starting named service after configuring dns. Pls help [root@server ~]# service named start Starting named: Error in named configuration: zone ...
1
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1answer
73 views

Subdomain Configuration on Ubuntu nginx Server [closed]

First of all, I'm sorry for my bad English. I'll try to explain my aim as much as possible. I'm using a 2 Core and 2 GB memory VPS with 1 dedicated IP address from Digital Ocean for my project. I'm ...
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0answers
863 views

Ubuntu Server 14.04 LTS - Default gateway and DNS different to Laptop network settings

I have been having trouble setting my Ubuntu server network settings. Both my laptop and server are connected to my home router, laptop via wifi and router via ethernet, router address is ...
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0answers
83 views

DNS (caching, zones) in 14.04 not working correctly

trying to get DNS working locally. I have a client VM that is a static IP and pointed to the local nameserver (.250) via /etc/network/interfaces. Both VMs are set to NAT, which I suspect may be an ...
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1answer
63 views

Problem Configuring DNS on ubuntu server running as a virtual machine

I am running "ubuntu-14.04-server-amd64" server as a virtual machine via virtual box on my MAC OSX 10.9.X. I am trying to learn how to configure DNS via linux. I crawled websites for continuously for ...
0
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1answer
22 views

Send e-mails from a server, preventing from being blocked by anti-spam [closed]

I have a domain that points to server A. There is an 'a' entry in the DNS table of this server pointing to a server B. My website visitors will see the page hosted in the server B, not A. MX entries ...
1
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3answers
108 views

Error message; [IP]in-addr.arpa has no PTR record: [duplicate]

I'm trying to figure out how to find the hostnames of computers on the LAN network. I put in the known address of a computer, but I'm getting an error I don't understand. ...
0
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1answer
83 views

bind fatal error cant open custom log

I have been having problems with bind9 on 14.04 LTS sudo service bind9 start produces next log May 20 21:47:46 c1 named[1110]: starting BIND 9.9.5-3-Ubuntu -u bind May 20 21:47:46 c1 named[1110]: ...
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1answer
40 views

DNS issues. Why and how to resolve?

I had been running internet via my USB modem and things were pretty well till last week. From then, I wasn't able to access websites or any net service, though applet shows network is connected. ...
0
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1answer
46 views

possible DNS problem unable to connect to us.archive.ubuntu.com

I just upgraded my ubuntu server via command line to version 12.04. I was on 11.10, so when I upgraded I have to switch the sources in source.list to the old-releases.ubuntu.com source. Everything ...
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1answer
2k views

How to create and configure DNS Server in Ubuntu 14.04 LTS Server

How to change the name of localhost to custom name which is available to other users in lan As the extension of my previous question i want to know how to implement DNS Server and configure it. In ...
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0answers
86 views

DNS Configuration Questions

The System: Ubuntu Server 12.04 LTS The system has the Ethernet interfaces eth0 and lo Background: So I installed and configured dnsmasq on my system. dnsmasq somehow managed to update ...
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0answers
18 views

Global DNS change

can someone help me change my DNS server globally without having to do it manually thru network manager for every connection I have. I want to use OpenDNS, whether its at home, uni, wifi hotspot, ...
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3answers
2k 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: ...
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0answers
406 views

Not pinging with host-name and can't ssh using hostname [duplicate]

I have setuped a DNS server in Centos6.5 and its working with every client machines other than ubuntu, now i have issue with ubuntu While im trying to ping from desktop machine to DNS server as ping ...
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0answers
225 views

Ubuntu 14.04 on VMWare DNS Not Working

For reasons, I don't understand, my Internet is not working in Ubuntu 14.04 running via VMware. In all probability I think it's a DNS problem as I'm also not able to ssh into my servers. Some ...
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1answer
32 views

Error starting up dns forward zone file

I am working setting up my DNS, but i am getting errors in: tail -f /var/sys/log. I have setted up a static ip-adress in networks: 192.168.10.1 May 11 18:13:54 s180368 named[3582]: command channel ...
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1answer
145 views

Ubuntu DNS server working, but getting errors in syslog

it's my first question to the forum here, so please go easy on me. I'm a Linux newbie and I experimented with setting up my own Ubuntu server (server name : araliya, domain: autun.hom, IP: ...
3
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0answers
55 views

VM can't ping LAN name but sees it via nslookup

I am trying to connect to a network resource from my 10.04.4 VM (VMware Fusion) but the destination is unreachable by name. What is weird is that the name is visible in DNS: >nslookup my.name ...
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1answer
238 views

How to remove a DNS nameserver on Ubuntu 14.04

So I just installed Ubuntu 14.04 on my laptop. Firefox has been incredibly slow, and I suspect my DNS settings to be the issue. When I do a cat /run/resolvconf/resolv.conf here is what I get: ...
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0answers
195 views

With MAAS set to manage DNS on a subnet on a private IP range, why do only some nodes have DNS entries?

I'm trying to set up OpenStack on MAAS, using trusty. I have a network between these machines all bridged/switched together. I have set up MAAS at 192.168.7.200, I have a Juju client machine at ...
2
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1answer
194 views

How can I redirect *.localhost to 127.0.0.1 in Ubuntu 14.04?

I used to be able to make foo.localhost, bar.localhost, etc. resolve to 127.0.0.1 by adding address=/localhost/127.0.0.1 to /etc/dnsmasq.conf But dnsmasq.conf doesn't exist in Ubuntu 14.04, and ...
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0answers
26 views

Append DNS Suffix - Wifi vs Physical

So a while back I changed my DHCP config to appended a dns suffix automatically. I modified the.. /etc/dhcp/dhclient.conf ..config file and added the a line.. append domain-name "mydomain.net"; ...
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118 views

wwan / qmi_wwan.ko / network IP config

I am trying to get a new wwan module working on Ubuntu 12.04. I am relatively new to modern linux - I wrote linux drivers "back in the day". These days I primarily write OSX drivers for wwan modules ...
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1answer
30 views

Virtualmin DNS problems

i'm pretty new to Ubuntu and Virtualmin and I got a problem. I'm creating a webserver with virtualmin local use only (it's running on virtualbox) so the ip is 10.0.2.15 and I'm trying to make the DNS ...
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0answers
28 views

BIND9 as authoritative server, but caching/forwarding--without AXFR

I'd like to setup a DNS server that acts a secondary authoritative server in case the primary goes down. Normally, that'd be easy to accomplish with AXFR, but I want it to be secondary to CloudFlare, ...
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1answer
97 views

Internet (both wifi and LAN) Stop working after some time

I have installed Ubuntu 12.04 on Dell N4050. But there is a problem with my internet. It first works fine. But after sometime about 3 to 4 min, it stop working. I tried to ping with server, default ...
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0answers
57 views

Prevent some interfaces from editing resolv.conf

I am trying to connect a camera to the internet. To do this, I have two devices: lte0 and wlan0. The camera (Sony NEX 5) is controlled over wlan0, and lte0 is the LTE connection. My ...
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1answer
758 views

Slow DNS lookup after upgrading to 14.04

After upgrading my Kubuntu to 14.04 from 12.04, I got extremely slow DNS lookup in Firefox and Thunderbird. I have checked the communications with Wireshark. Launching e.g. http://vs.hu in Firefox ...
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2answers
224 views

How can I stop my server being an “open DNS resolver”?

This morning I got a letter from my ISP saying that my Ubuntu Server (13.10) can be used as an "open DNS resolver". They propose 3 possible solutions to fix this problem: Limit access to recursive ...
0
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1answer
47 views

Where to set my DNS on Ubuntu 64 bits?

On Ubuntu 32 bits I decalred my DNS in /etc/resolv.conf Now that I installed Ubuntu 64 bits I do not find this file. I edited /etc/network/interfaces and /etc/hosts but there is no /etc/resolv.conf. ...
6
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1answer
394 views

Network only using one DNS when connected to VPN

My company has a VPN that I need to connect to. In OSX, I do this by using openvpn with the following configuration: client dev tun proto udp remote <GATEWAY_ADDRESS> <PORT> resolv-retry ...
0
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2answers
56 views

Ubuntu internet connection problem

I installed Ubuntu on my laptop. Here are my internet settings: auto lo iface lo inet loopback auto eth0 iface eth0 inet static address 10.1.17.10 /*this is my IP @ddress*/ netmask ...
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1answer
207 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
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0answers
30 views

Aceessing a webserver on aws EC2 instance with custom nameservers?

I tried to run a web server on amazon's ec2 instance . When I quired it through ELASTIC-IP of instance it resolved perfectly , but whenver I am tried to do a nslookup or try to access via custom ...
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0answers
48 views

Adding different sets of DNS to -one- network adapter

My work environmental infrastructure depends on two different DNS servers. One that is here locally with us and one that is remote, on another location (which we have access to). The question is ...
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1answer
158 views

Ubuntu 12.04 server will not resolve

I am at a loss as to why I can't resolve. I am sure I am missing something and I hope someone can help. I have installed Ubuntu 12.04 server. After setting to static, I can not resolve host names (to ...
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0answers
38 views

changes in etc/dhcp/dhclient.conf get ignored

Im wanting to never use a specified DNS Server so I tried using reject ip address as suggested here to my question: How to make Ubuntu never use specified DNS server? (DNSLeak issues) but setting ...
0
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1answer
83 views

MAAS / nodes have limited internet access after install

I´ve installed a test environment for MAAS and JUJU. MAAS manages both DHCP and DNS. Following setup: maas01 - static IP juju01 - dhcp and dns from maas01 node01 - dhcp and dns from maas01 and pxe ...
0
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1answer
100 views

How to make Ubuntu never use specified DNS server? (DNSLeak issues)

Im using VPN and dnsleaktest.com shows me that it discovered vpn dns and my isp dns. I want to avoid using isp dns when using vpn. I found I can use prepend domaine name servers in ...
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0answers
175 views

dnsmasq unrecognized command

I'm attempting to run a script which calls service dnsmasq restart service dnsmasq restart dnsmasq: unrecognized service No matter what I call for dnsmasq, it gives me the "unrecognized service" ...
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0answers
182 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 ...