Translates domain names to IP addresses. DNS stands for Domain Name System.

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Requested URL not found on this server

This is a problem I am facing for the last 3 months. I have noticed that a few websites don't open in my laptop. It shows me a blank page with a message saying "NOT FOUND. REQUESTED URL WAS NOT FOUND ...
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Samba 4 AD: “samba-tool dns” commands do not work from dhcpd script

I've set up my RPi 2 as Samba 4 AD DC with these instructions - https://wiki.archlinux.org/index.php/Samba_4_Active_Directory_domain_controller That page contains script ...
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1answer
21 views

DNS , NS and Mail Server configuration for website hosted on Amazon EC2

I created amazon free micro instance on EC2. And hosted my website on that server. IP like - 52.24.220.140 Problem is that , my domain registrar is Directi.com and I don't have mail hosting also ...
6
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1answer
991 views

I sometimes get lag spikes causing ping times of 200 ms; might using different (e.g. Google's) DNS servers be better?

I live in the UK and I am a heavy gamer and I get lag spikes that take my ping to 200ms. Will using a third-party DNS Service, for example the one provided by Google, rather than those provided by my ...
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1answer
17 views

Troubleshooting network problems in Ubuntu Trusty Tahr

So I seem to have two problems. My first problem is that I can only intermittently ping my router from my Ubuntu Desktop (by IP address). Second, my Ubuntu Desktop intermittently fails to properly ...
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1answer
15 views

How do I alias a hostname in OSX?

My machine at my office is named really_long_host_name.my_company.com. I'm trying to set something up so that I can go to http://desktop and have it alias to that machine. I could do this easily in ...
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Change DNS server on android for mobile connection by using a VPN server [on hold]

for a project I need to change the DNS server of my Android Smartphone that is not rooted and connected via 3G. I know that there are several Apps in the Playstore that are capable of that by creating ...
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1answer
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Networking - DNS services

It is a commonly used best practice to split an organization's DNS services, where some aspects of that service are hosted on the internal network or internetwork, and other aspects on at least one ...
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21 views

Cannot connect through TCP/IP protocol

The title is my inspection on the issue, it may not be the real issue. The issue is, my browsers cannot connect to any domains, such as google.com. Under IE 11, there is no error but just a plain ...
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6 views

Improve connection speed to SVN server

We have self-hosted SVN server which is in my city. When I try to access from home network using VPN, connection is very slow. Is there a way I can reduce route(request trip). Currently it's first ...
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7 views

subdomain Dyn DNS timeout, got ping but get browser timeout

For my Dyn DNS at dyn.com, I have one hostname "mra.dnsalias.net" that I created a while back, but did not have the wildcard checkbox specified, which would map "*.mra.dnsalias.net". The initial ...
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DNS Issue in ubuntu 14.04

I am facing DNS resolving issue sometimes in my Ubuntu 14.04.2 LTS trusty. I have configured my system with network manager to work with static IP assignment. I have also tried by changing DNS server ...
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3answers
27 views

How does virtualbox get the network configurations?

I am installing CentOS 7 on virtualbox. On "Network & Host Name" screen: When toggle the "OFF" to "ON", I can see the IP, DNS, netmask are all configured: I am curious about how does ...
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1answer
34 views

Chrome & IE can't access local website, while Firefox can. How to debug?

1. Enviroment 1.1 Host machine Windows 8.1 Enterprise Chrome v42.0.2311.152 Firefox v38.0.1 IE v11.0.9600.17031 VirtialBox Vagrant 80 port forwarded to port 80 at guest machine at 192.168.56.101 ...
3
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1answer
52 views

DNS not functioning on command line

I recently did a combination of Vagrant + VirtualBox stuff on my machine to try to get a virtualized Ubuntu install working. However, I had no luck with it so I just uninstalled everything. Ever since ...
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0answers
24 views

How additional IPs are added to hosting [duplicate]

Hi i have centos server with 1 ip address. I bought 2 more ip address from same server company, and i added them in ifcfg-eth0:0 and ifcfg-eth0:1 in my server. When i ping within my server using SSH, ...
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39 views

Windows can't communicate with the device or resource [duplicate]

I have this problem in troubleshoot "Windows can't communicate with the device or resource (primary DNS server)" . My router is using a opendns server IP and I don't want default DNS server use ...
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point multiple ip address to hosting

I have centos server, earlier it had 1 ip [ a.b.c.d ] (external ip , eg., 141.101.114.59). Now, I bought 2 additional ip [b.c.d.e , f.g.h.i] (external ip , e.g, 190.93.244.58 , 130.93.245.8 ). I have ...
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15 views

Remote Management address different from Computer Name

We are an educational institution with managed computers using a management server. Our computers are bound to an AD server as well for LDAP. The issue we are having is the remote management addresses ...
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1answer
40 views

2 Routers 2 ISPs 1 DNS, Hiding DNS requests

Firstly I am going to explain my network topology. I've got 2 routers serving separate ISPs and they are connected to each other via LAN and each one has its own dynamic IP and DNS by the ISP, my ...
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1answer
45 views

Changing nameservers and MX records at the same time

I have a domain (mydomain.com) with working email (provided by the domain registrar, let's call them ExistingHosting), but no web site. I now want to create a web site, hosting it with a different ...
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1answer
17 views

Is Metasploit's reverse_tcp_dns meterpreter slower than reverse_tcp in establishing a connection?

I suppose it is, because the DNS has to be resolved whereas reverse_tcp uses an IP address. I would like to know all the differences between them, because although I like reverse_tcp_dns, I would ...
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1answer
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Vagrant Networking - can ping IP but not a FQDN

I have a CentOs vagrant machine and I have no problem pining an IP address such as: 216.58.223.4 When I try and ping: www.google.com, it is unable to find the network. /etc/resolv.conf This file ...
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3answers
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Wifi stops working every 10 minutes on Mac OS X Yosemite [SOLVED]

Every 10-15 minutes, my internet connection fails in the following manner: Cannot load websites Cannot connect to Dropbox Cannot connect to IRC Skype still works Slack still works Still able to ...
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22 views

How to avoid using domain controller for DNS queries from web browsing

I'm trying to setup a Windows domain for a few PCs at home and work. Both Active Directory and DNS are on the same server but it is at US while I'm physically in Asia. In order to make the domain ...
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24 views

How do I use both my router as a secondary DHCP server?

I have a Ubuntu based server and a Draytek router. As it stands, my router is acting as the DHCP server and tells clients to use my ISP's DNS servers. I'd like to look up local machines by name ...
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1answer
60 views

I'm benchmarking various DNS servers and one of the adresses shown seems like my router, how to check it?

I'm using DNS Bench to test 10th's of DNS servers, and two addresses in the list appear to be from my router: 192.168.0.1 Non-routable local internet address 192.168.1.20 Non-routable ...
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1answer
4 views

what would be the benefit of adding a dns server to isc-dhcp-server

I have a very simple networking setup. I have a couple server applications like plexmediaserver, transmission-daemon, samba, etc... My router just went down, so instead of buying a new router, I just ...
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1answer
18 views

what is ddns-update-style in isc-dhcp-server on ubuntu

I have a ubuntu server setup as a router (among other things), I now am adding a dhcp server to it. When configuring isc-dhcp-server, the /etc/dhcp/dhcpd.conf file has an option called ...
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2answers
44 views

Windows 8.1 manual DNS on a per wifi network basis? [duplicate]

How to configure Windows 8.1 with a specific manual DNS that is only valid for the current WiFi network? The setting seems to associate with the WiFi card, not the network, resulting in a laptop that ...
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1answer
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Why can't my Windows devices browse but my iOS devices can browse?

All Windows devices on our wireless home network are no longer able to browse the internet. The choice of browser does not matter. All iOS devices can still browse without problems. I have tried the ...
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2answers
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A very Strange DNS 1 & DNS 2 Entry

I have an issue I've never seen before, 5 computers on network. All have access to the server via remote desktop. Only one has Internet access. Tried setting ips static on the ones not connecting to ...
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32 views

Should I disable Netbios over TCP/IP for printing throught Samba+cups?

I have a domain with 100+ machine which are reparted on two IP ranges. On this moment, computers are using netBIOS over TCP/IP or SMB over TCP/IP. It seem that two requests are send ...
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2answers
36 views

How to restore my default DNS?

I hanged my DNS servers to 8.8.8.8 in order to fix my web browsing (it worked). My coworkers want me to change it back, but i didn't save it! Is there any way to restore my old dns settings? I'm ...
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1answer
28 views

wireshark save capture directly to file with filter

I am looking to have a long-term packet capture running to monitor DNS requests on my machine. I generally use wireshark for network monitoring, but since I am only interested in DNS packets, and over ...
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16 views

On my computer, forward specific third-party domains to my own subdomain

I need to redirect from all Google domains to a specific subdomain on my local computer. I am using Windows 8.1 and Mac OS X 10.10. I cannot do this by adding a firewall rule because I use my computer ...
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2answers
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Strange networking issue in Linux

My problem is hard to explain. I can’t open some sites. For example some sites provided by Google. I can open the Google search engine, however I can’t open YouTube, the download page for Chrome (the ...
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1answer
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example.com cannot be resolved to an IP Address

since this morning I can't connect anymore to my website. I'm on a centos dedicated server with apache. I think that there's a problem with DNS, this is the message I get from a webtool: example.com ...
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70 views

The DNS server isn't responding

I'm having connectivity issues. I randomly become unable to use my connection. When I try to use the Windows troubleshooting tool, I get the following message: I'm using an Asus router. There are ...
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1answer
58 views

How to change DNS on a minimal networking setup

How can I replace my DNS? I am not using a network manager, except for systemd-networkd and wpa_supplicant for wireless, with wpa_cli. I'm on Arch Linux, if it matters. Although I can add DNS to my ...
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1answer
65 views

Only My Computer Won't Connect to a Specific IP

I'm having issues connecting to our Web Server IP from my computer. This seems to be isolated to my computer as I'm able to access it from every other machine I attempt just fine. By not connect, I ...
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1answer
32 views

Public ip address showing in Hong Kong

It seems that my range of ip address are all showing as if they are in HK. For example, when I use google search, I am stuck on the .hk search site and it is extremely annoying. I also host a email ...
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1answer
25 views

change IP when a CNAME is used

I want to set 96.7.41.139 as IP address of download.microsoft.com I checked this post: http://serverfault.com/questions/452268/hosts-file-ignored-how-to-troubleshoot and set hosts as below. ...
0
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1answer
34 views

nodejs not receiving request on forwarded port

I am trying to get my router to forward requests made to my noip dynamic dns to my local computer where I have a nodjs running, waiting for requests on port 14555. I have the noip dns set up so that ...
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1answer
19 views

Need to change a computer name back to its old name on a domain

I had a problem witha computer I was trying to join to the domain. I gave it a different name than the one it was supposed to have but now I have to go back to the original name. However now I cant go ...
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Is google blocking domains that are mapped to cloud front? [closed]

I would appreciate some help with my problem: I did 2 experiments, in the first I took a brand new domain, no traffic has ever run on that domain, and mapped it to my amazon cloud front account. then ...
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Why can I access a domain from a computer and not from another one on same local network

I registered a new domain name but forgot to setup dns servers. I typed the domain on a computer and was redirected to registrar parking page. So I added dns server and could access the domain on any ...
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13 views

Inter host name resolving

I am trying to setup a lily cluster where in it talks about Network Configuration which I am unable to understand.Kindly explain me the network configuration and how am I supposed to do this ? ...
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55 views

Internet connection repeatedly disconnects/reconnects on only 1 PC with new router

Recently I have replaced an old wireless router with a newer one, and since then one of my devices has been experiencing repeated disconnection and reconnection to the wireless network. My wireless ...
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3answers
52 views

Routing to sub network with local DNS

Short and clean question We has domain that can be resolved and accessed from internet as ip. On host with that ip we has NAT and virtual machines that hidden behind that NAT. How can we give access ...