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

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636
votes
15answers
454k views

How to clear/flush the DNS cache in Google Chrome?

As you probably know Google Chrome has its own internal DNS cache. Is there a way to clear it without having to wait for the time out or close the browser?
43
votes
10answers
166k views

Running DNS locally for home network

I have a small home network that just got larger (new roommate, my existing roommate got a laptop (on top of her computer), my friends coming over with laptops, etc.). I'd like to run a local DNS ...
6
votes
6answers
16k views

Connect to Linux by name rather than IP

I'm new to Linux (currently running Ubuntu 10.04) and I have just finished setting up SSH access to my Linux Machine. Currently, I have to use ssh root@x.x.x.x to connect but would much rather be ...
58
votes
16answers
107k views

Why is 'ping' unable to resolve a name when 'nslookup' works fine?

On my Windows XP workstation, I can find the machine I want to connect to in DNS with nslookup: nslookup wolfman Server: dns.company.com Address: 192.168.1.38 Name: wolfman.company.com Address: 192....
18
votes
2answers
915 views

How does http://to./ work?

So I noticed this on Jeff's twitter. They don't have a tld, it seems? How've they done this? Magic, bribery, or did a no-tld tld open up recently?
8
votes
4answers
33k views

How does hostname spoofing/customization work on IRC networks?

I've used IRC for a long time and I've seen people with really unique hostnames. I'm wondering how they are able to have those? My theory is that one sets up a server as part of the efnet/freenode ...
11
votes
3answers
9k views

All my browsers suddenly don't support Javascript files anymore?

I'm experiencing the same issue as this question, which seems to be unresolved. I'll provide more detail, sot that this qualifies as a better representation of the issue. It all started after moving ...
3
votes
4answers
361 views

How can I get my home machines to connect to each other via hostname?

I've got a standard Linksys router and a few laptops - mix of Windows Vista and Mac OS X. Shouldn't my router act as a DNS server to resolve hostnames for the machines within my local network? If not, ...
0
votes
1answer
53 views

Updated DNS zone can't be seen from my local network

I have updated a domain name DNS zone on 123-reg.co.uk where I bought the domain name. I have only updated blog A record to different hosting(IP) On my PC home (windows) or another PC in the same ...
107
votes
5answers
14k views

How should I choose my DNS?

When I have to choose my DNS I think that I should consider: Speed Reliability Privacy Control (reports and stats) The main options that come to my mind, and how I weigh them according to the ...
15
votes
6answers
16k views

VPN: Does all traffic get routed through the VPN when I am logged in?

If I log into a slow VPN with only a 15k/s connection, when I try to go to kernel.org or some other site to download something, is everything getting routed through that other network? (so my max ...
8
votes
3answers
3k views

How do DNS servers work?

I know that a domain name is resolved by a DNS server to an IP address, which is then used to reach the requested server. I'm slightly embarrassed that I don't know some of the details of how this ...
10
votes
4answers
23k views

Does Chrome use a different DNS server from Firefox and IE which use the OS default?

Is the common set up for Chrome that it will use a different DNS server, while Firefox and IE will use the OS networking default? My Chrome (including one on virtual PC) will sometimes show "...
4
votes
4answers
7k views

How is DNS used by individual processes?

When resolving FQDNs or machine names to IP addresses on my local network (mycompany.internal) I can use dig on the command line (linux/mac) or nslookup (windows) to query the configured server and ...
7
votes
5answers
40k views

What's the difference between “default gateway” and “preferred DNS server”?

TCP/IP Properties of a network connection in Windows Server 2003 has two different options, "Default gateway" and "Preferred DNS server".
6
votes
2answers
4k views

VirtualBox - guest Ubuntu loses DNS when host connects to VPN

I have Ubuntu guest OS in VirtualBox using default NAT for eth0. Works fine at the office and at home EXCEPT when on office VPN from home. When the host OS (Windows 7) is connected to the VPN, DNS ...
3
votes
6answers
21k views

With Windows 7, why is an entry in the hosts file not working?

I updated some entries in the hosts file at C:\WINDOWS\System32\drivers\etc. As a test, I decided to make Google point to 127.0.0.1. # Additionally, comments (such as these) may be inserted on ...
8
votes
6answers
11k views

What are the pros and cons of using an alternative DNS instead of the ISP DNS server?

I searched the web for answers, but I haven't found anything conclusive. What are the advantages/disadvantages of using an alternative DNS (for example, OpenDNS or Google DNS) as opposed to the ...
4
votes
2answers
4k views

How can I set up Linux to use a different DNS server for a certain domain?

I can add DNS servers to resolv.conf and that works fine. But is it possible for me to call a different DNS server based on the domain trying to be resolved? For example: use 10.0.0.1 for ...
3
votes
4answers
7k views

Browser redirects almost all of links to Adfoc.us

Since yesterday, most of users in our region and as far as I know, many other peoples received a lot of link redirection. most of these redirection are going to adfoc.us website. this redirection ...
1
vote
2answers
2k views

how can i forward requests to my own IP address to a local IP address in my network (possibly using named)?

My setup I have a linux server running in my basement. I currently have my router looking to that server for DNS lookup, so I can use named to spoof a bunch of domain names to point to my local ...
19
votes
1answer
103k views

Unable to access most internet sites error DNS_PROBE_FINISHED_NXDOMAIN

I have problems accessing most websites, only a couple work (grooveshark, google, facebook). On almost all others I get errors. Here is what I got using different browsers: Opera: This website is not ...
18
votes
9answers
4k views

Google's DNS service: Google public DNS

Google declared their free DNS service, Google public DNS: To try it out: Configure your network settings to use the IP addresses 8.8.8.8 and 8.8.4.4 as your DNS servers. They claim that: ...
19
votes
4answers
152k views

Why can't Chrome load a web page? ERR_NAME_NOT_RESOLVED

Chrome gives this error, yet I can ping the server! The server at www.odesk.com can't be found, because the DNS lookup failed. DNS is the network service that translates a website's name to ...
26
votes
3answers
81k views

Is there a good DNS server I can install on Windows 7 for a LAN? [closed]

I have a few computers on my LAN, and now I'm getting tired of remembering the IP addresses all the time, so I would like to start using DNS names on my LAN. I have a heterogeneous network with ...
9
votes
6answers
16k views

Lion / name resolution order

(this issue went away for me with the 10.7.1 update - /etc/hosts now works as always for me) I've updated my Mac to Lion and now I notice that /etc/hosts is consulted last, even after DNS. This is ...
18
votes
3answers
13k views

Windows 10 DNS resolution via VPN connection not working

In Windows 10, when connected to a VPN with Split Tunneling enabled (Gateway disabled), DNS resolution always uses the LAN DNS servers, ignoring the DNS servers and the DNS Suffix set on the VPN ...
11
votes
1answer
45k views

“Network is unreachable” when attempting to ping google, but internal addresses work

I can get to other PCs in my house on the 192 network, but trying to go outside gives me the "network is unreachable" message. p3p1 is up with a good IP Address. Running Fedora 16. What should I ...
6
votes
2answers
2k views

How can I route a domain to my box at home?

I currently own my own domain, and have been using dyndns.com's "custom DNS" to allow me to redirect 'example.com' to my website at home, which is on a dynamic IP. I've now switched over to a VPS ...
10
votes
6answers
5k views

Why does my browser take me to the WRONG site?

Sometimes I type nytimes.com and my browser takes me to usatoday.com. Sometimes google.com takes me to Bing.com. Sometimes I enter online.wsj.com (Wall street Journal), but I'm taken to online.wsj.com/...
2
votes
4answers
16k views

Why can't I access my own web server from my local network?

I have a web server in my home network and I'm using ZoneEdit for dynamic DNS. It's accessible perfectly to everyone outside of my local network, but since I switched to a Gateway 2Wire DSL modem/...
2
votes
4answers
1k views

How to give computer URL to access over the internet?

I would like to be able to SSH into my macs over the internet using a DNS name like my-imac@example.com or something similar instead of having to enter an IP address every time. How can I assign ...
14
votes
3answers
23k views

How to set custom DNS server for Chrome browser?

I have local DNS server thats resolve all urls *.domain.tld to 127.0.0.1. Also I have the production server with same address *.domain.tld. They have the same names, because subdomains are interact ...
8
votes
5answers
54k views

Why does remote desktop not work for me by computer name, and only by IP?

I have a computer at work that I can only connect to remotely when using the computer's IP address and not when using the computer's name. I can see my computer name is set up correctly as "JoshPC" (...
6
votes
3answers
20k views

How to remotely find out a linux hostname without the use of DNS?

If I want to find out how the hostname of a remote linux machine on my LAN is, how can I achieve this given I don't have access via SSH etc.? Probably depends if linux is part of a WINS domain I ...
4
votes
3answers
9k views

How can I map a domain name to an IP address and port?

I want to give a domain name to the IP address and port for an application in Windows 7. For example, test.com should map to 127.0.0.1:59873. Is there anyway that we can do it by using a web server ...
1
vote
2answers
3k views

Running a caching DNS server on my LAN

I have a Raspberry Pi, and I'd like to use it as a DNS server on my LAN. I'd like it to work like the following: The Raspberry Pi is a DNS server, but not a fancy one. When it receives a request, if ...
9
votes
6answers
16k views

Why do most routers not include local DNS?

I need to change my firewall/router, and I'd prefer something with built-in DNS to resolve queries on the local subnets. I've got a mixed Linux/Windows system, often with only one computer turned on, ...
5
votes
3answers
17k views

How do I redirect a domain to another domain locally?

My /etc/hosts file looks like this: 127.0.0.1 localhost 10.20.7.67 testsitealpha.dev othersite.dev testsitebeta.dev The first two work. The last one doesn't. Why not? How do I make it ...
3
votes
4answers
1k views

Accessing Windows from Linux/Mac by name using TCP/IP

What are some solutions to access Windows by its computer name from Linux and Mac using TCP/IP. That is, from terminal I want to be able to ping my Windows PCs using its host name. My setup is: ...
3
votes
4answers
8k views

Problem with network shares

I have a laptop installed with Windows 7 that has problems in accessing network shares. Even if I am able to ping the computers containing the share then I get the infamous "Windows cannot access the ....
2
votes
2answers
2k views

Mac OS X traceroute not even reaching router gateway

I'm having an issue on a Macbook Pro running Mac OS X 10.5, I'm unable to visit certain websites such as: "themarchesa.com" On other computers in the same LAN network connected over wifi I'm able to ...
1
vote
1answer
4k views

Who owns all domains? [closed]

I know some sites like GoDaddy and such sell domains. Where do they get these domains from? Is there somebody who sold all the domains originally. The internet is free and isn't owned by anybody. ...
1
vote
3answers
210 views

How to access a site you host from within your own network?

I have web site being hosted on my computer, so that mysite.com is served from one of my machines. However, even though everyone else can access this site normally, if I type its name (or, indeed, any ...
1
vote
2answers
6k views

resolv.conf not working properly with Ethernet in Ubuntu

I have a Lenovo X200 laptop on which I am running Ubuntu 9.10. Recently, (I assume after some updating, but I really don't know) my ethernet port stopped working under Linux. A more tech/linux-savvy ...
11
votes
3answers
7k views

MacBook can't use internet, but nslookup and ping both work

I have a user with a new high-end MacBook Pro that can't use the internet. He can connect to either our wired or wireless network and do things like browse file shares, but can get no further. When ...
5
votes
4answers
3k views

Some pages in Chrome always redirect to ransom page at http://system-check-fyeltkhn.in

This is so weird and random that I have a problem explaining it fully. Since yesterday, those behaviors started: Some pages in Chrome are be always redirected to: http://system-check-fyeltkhn.in/...
5
votes
2answers
236 views

Can I create a DNS domain for local use?

Is there a way for me to assign a domain name to a computer's local IP address, not for use with people outside the network? Preferably with no need to buy said domain. A example would to use domain....
2
votes
3answers
2k views

Is it possible to link a domain to my server without a DNS?

I have a local server that I'd like to link to a domain without setting it up through DNS. Is this possible? Sorry if I sound dumb, but what does a DNS server do exactly? Why not just link the ...
2
votes
6answers
4k views

Chrome is unable to connect to the Internet

I'm getting the error code: DNS_PROBE_FINISHED_NO_INTERNET in Google Chrome. The thing is, I have a working internet connection. I am posting this using that connection, using Internet Explorer. It's ...