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

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2
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1answer
761 views

Why does ping to google.com or 8.8.8.8 fails

I am using Cent OS 6.4 and it is in a official lab. ping google.com gives the below output and hangs: [root@LAB1 ~]# ping google.com PING google.com (74.125.236.195) 56(84) bytes of data. ping ...
0
votes
3answers
53 views

What specific roles does firmware play on routers?

If routers properly implement standard networking protocols (DNS, DHTCP, TCP/IP, etc.), then wouldn't the same firmware (implementing these protocols) be applicable to all routers? I guess I'm ...
0
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0answers
143 views

DNS changes automatically to porn site DNS

I am using OS X Mavericks 10.9.4 and Windows 8.1 with Boot Camp. It is not happening everyday but it happens at least in every 3-4 days. When I log in to 192.168.1.1 and check my DNS they are just ...
1
vote
1answer
105 views

For my own DNS server, “dig … @ip-address” works, but “dig … @domainname” does not

I've recently begun virtualizing servers - one of which is a DNS server running BIND 9 on Debian 7. My DHCP server correctly issues it as the primary DNS for the network, but I get the following ...
0
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0answers
29 views

Associating a domain name with web server

I am currently running a web server on AWS and I have a domain name that I want to associate with the server. The server is running nginx on port 80 yada yada but the part I am having trouble with is ...
3
votes
2answers
12k views

Where does Firefox store cerificates and how to delete one?

The root cause of my problem is not known to me, whatever it is, I experience frequent DNS failures. When it happens I cannot browse to my Gmail inbox. I use two DNS settings. One is the public DNS ...
0
votes
1answer
80 views

Netgear DHCP server doesn't provide the inputted dns servers to the connecting computer

I have NETGEAR JWNR2010v3 Router and I have configured it to static IP provided by the ISP. I have configured the preferred and alternate DNS servers provided by the ISP into the router. When I ...
0
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3answers
11k views

ping can't resolve hostname, but nslookup can

ping tells me that it can't resolve some hostname ("ping: unknown host domain.company.local") in a URL but when I use host or nslookup on the same computer on the command line, the resolutions works ...
1
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2answers
438 views

log into SSH server using a subdomain by adding an “A Record”

I SSH into a series of static IP addresses, but it's easy to forget which one is which. I'd like to replace the static IP addresses with a subdomain of a domain I own. I.e., 55.55.555.55 --> ...
-1
votes
1answer
19 views

Host 2 Seperate DNS servers on one server?

Just wondering if its possible to have 2 different DNS servers on a server? For instance i am running BIND DNS (Through cPanel), and wish to run a separate instance of PowerDNS as well. Is this ...
0
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0answers
32 views

Weird phenomenon about my PC's primary & secondary DNS speed

I use DNS Jumper to test the speed of various DNS and this is the result: (A) Currently Using Primary: 203.144.207.29 (39 ms) Secondary: 8.8.4.4 (71 ms) (B) US Open DNS Primary: 208.67.220.220 ...
0
votes
1answer
30 views

How could I redirect in bind to another host in case server 1 went down?

I have two servers with same service, so server 1 xxx.myhost.com A record ip 1.1.1.1 server 2 xx2.myhost.com CNAME record to otherhost.com The server number 1 is the principal, so, I gave to my ...
0
votes
0answers
23 views

DNS Cache affecting HTTP requests

An odd error occured which I am trying to understand the cause. I updated a website and on some computers, a cached version of a particular .css file was being served. Other changes to the site were ...
0
votes
0answers
33 views

OpenVPN client tun device name in OSX

I have a VPN server set up that I am using to connect to from my OSX 10.9 laptop. When I load my openvpn profile with tunnelblick, it works, and I get a device named "tun0" just like you would expect. ...
0
votes
2answers
89 views

Is my Windows 7 primary and secondary DNS setting correct?

I use a Windows 7 desktop PC with a TP Link Wireless N ADSL2 + Modem Router. My PC is connected to the TP Link via a LAN cable while another 2 PCs of my secretaries are connected via WiFi. I am not ...
0
votes
1answer
30 views

How can I redirect one 'vanity' domain to another domain via DNS?

I have a domain for my 'vanity urls', lets calls it ample.co, and the subdomain ex.ample.co is used for the vanity urls (using Bitly). The address ex.ample.co via Bitly redirects to example.com, the ...
1
vote
0answers
24 views

Issues accessing file shares of certain servers across site to site VPN

We recently had a problem crop up with one of our remote facilities, i'm not a system admin, and we are currently without one, but I will try to explain the best I can. Employees at the remote site ...
7
votes
3answers
26k views

How can I set my DNS settings using the command-prompt or PS?

Through the CLI (either cmd.exe or PowerShell) on Windows 7, how do I edit the TCP/IP DNS parameters for a specific network adapter?
0
votes
1answer
29 views

cannot get Mac to do dns-sd to CUPS print queue

I'm trying to create DNS records so that Macs on our network can auto-detect available printers via dns-sd (broadcast alone isn't an option due to our WAN environment) If I manually "Add" the CUPS ...
1
vote
1answer
610 views

Active Directory Domain Controller with pfSense as DHCP and DNS server

I've read some conflicting posts, so hopefully I can get a clear answer. I have pfSense running as a DHCP server and DNS Forwarder. I'd like to try out Active Directory as a Domain Controller at home ...
3
votes
4answers
935 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: ...
1
vote
0answers
20 views

Why doesn't my DNS change propagate within the TTL?

Why isn't my DNS propagating correctly? It has a TTL of 3600 seconds, 1 hour, yet it is still resolving to an old IP. It's been at least 10 hours! http://www.onlinedig.com/go-dig/ C:\>nslookup ...
0
votes
0answers
21 views

Smart dns resolving and routing

I am running mac os x. The os has two network interfaces. LAN (restricted to be used only for intranet) and WIFI. As LAN is restricted, it blocks traffic like skype. The issue is, if I make WIFI as ...
0
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0answers
38 views

Particular website is not accessible when specific DNS is used

Particular website is not accessible when specific DNS is used.We can ping to that website even if cannot browse.Also in some cases can reach the domain by using IP address (Ex: ...
0
votes
1answer
63 views

DNS server (BIND) stops forwarding. Restart helps. Why?

I'm encountering very strange issue with my DNS server, which is set up to forward requests for a specific domain to another DNS server. After restarting named I'm able to resolve hostnames, but after ...
0
votes
1answer
85 views

dnsmasq - Redirect URL request to guest VM

I am running Linux Apache on my local Parallels VM as a guest, my goal is: redirect an URL request (http://test.dev) from host (OS X) to Linux Guest. I had a local dnsmasq setup with MAMP (which ...
0
votes
1answer
53 views

dnsmasq not working to point .local addresses to 127.0.0.1

I'd like to get .local addresses (such as test.local) to point to 127.0.0.1 but it isn't working. I'm on latest Ubuntu. In /etc/NetworkManager/NetworkManager.conf I commented out dns=dnsmasq then did ...
0
votes
1answer
25 views

How to set up a .local domain on Linx?

I have multiple nginx virtual hosts all pointing to localhost. Right now they have same name different ports localhost:8080, localhost:8081. Instead I'd like them to have same port different names ...
0
votes
2answers
74 views

Local server name no longer recongnized - OpenBSD

I've been scratching my head with this for a while and don't seem to be getting any closer to a solution at the system level. Brief note: A while back I set up an OpenBSD based server to run my ...
0
votes
0answers
23 views

Site-to-Site Connection with Windows Azure

I've created a Site to Site connection using Windows Azure. My On Premise connection uses 192.168.0.0 - 192.168.0.255 and my Azure connection uses 192.168.1.0 - 192.168.1.255 on a subnet of ...
28
votes
6answers
59k views

Is there a way to get the complete zone file for a domain without contacting its host?

I know that it's probably (no longer) possible because of abuse, but I want to check nonetheless. Is there a way for me to obtain the company zone file for a domain myself, without having to contact ...
4
votes
6answers
16k views

Can ping IP address and nslookup hostname but cannot ping hostname

I have a DNS server set up on one of my machines using BIND 9.7 Everything works fine with it. On my Windows 7 desktop, I have statically-assigned all network values. I have one DNS server set -- my ...
0
votes
1answer
13 views

server actions to restore web mail access

A domain name, say foo.com, is registered to company ONE. The Address record of the DNS for that domain has been changed, to map foo.com with an IP which corresponds to a server of company TWO. ...
0
votes
1answer
67 views

DNS server cannot resolve ipredator.se domain

Since yesterday I cannot connect to ipredator.se anymore. Seems to be a DNS problem: $ nslookup ipredator.se Server: 127.0.1.1 Address: 127.0.1.1#53 ** server can't find ipredator.se: ...
0
votes
1answer
42 views

Forward everything from misspelled domain (DNS)

I have two domains: example.com exampel.com (wrongly spelled version of 1) Now, I want to 'forward' everything from domain 2 to domain 1, so for example: www.exampel.com --> www.example.com (for ...
0
votes
1answer
27 views

Can only connect to shares using FQDN

I'm trying to connect to one of my network shares using a Macbook Pro. If I type smb://mysharealias.mycompany.com/users (which is an alias), I can view the share. However, if I just type ...
0
votes
2answers
96 views

SSHD reverse mapping fails, but nslookup, dig, and host resolve correctly

I just set up a dhcp/dns server to manage my home network. After I got everything up and running (and maybe before - I wasn't paying close attention), I noticed that logging into ssh was slow. I ...
1
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0answers
31 views

How to setup communication between virtual machines

Probably my issue is not hard to resolve but I got a stuck. I have several LXC containers. One of them has MySQL, RabbitMQ, MongoDB (and several other services) installed and configured. Every other ...
3
votes
5answers
6k views

How to find which DNS server I am using (of the multiple configured dns servers)

I have two dns servers configured, which are listed when viewing ipconfig /all I would like to know which of the two servers I am using at the current time i.e. from my browser or via the tracert ...
5
votes
2answers
364 views

Flush Chrome and Firefox DNS cache from command line?

Occasionally, I need to do a scorched Earth cleansing of my local DNS cachi. The most common scenario for this was that I was using OpenDNS, and when a name would fail to resolve (it was a hostname ...
1
vote
1answer
62 views

Why is Facebook's host machine not on the same network as its domain name?

Here's what I get when I ping facebook.com (the domain name) and www.facebook.com (host name of host machine)... According to http://superuser.com/a/59094/325893, the domain name (facebook.com) ...
18
votes
3answers
4k views

Why can I ping google.com, but not nasa.gov?

Why can I ping google.com, but not nasa.gov? I have to ping it like this ping www.nasa.gov Is it because of DNS record of NASA? Also how does a ping response time improve? ping google.com time ...
1
vote
1answer
53 views

Why a DNS server on an ATA?

I was portscanning this home network from the outside and found three open ports: telnet(!), http and domain. I quickly realized that those ports were belonging to an Eltek R7121-L1 ATA that is ...
1
vote
0answers
27 views

How to switch between DNS suffixes using CMD (netshell)?

at my job, I have to manually switch between: 1) append primary and connection specific DNS suffixes and 2) Append parent suffixes of the primary DNS suffix a bunch of times per day (due to a ...
2
votes
0answers
149 views

Error message while connecting to EC2 instance via Cygwin

I am trying to connect my EC2 instance using the directions my instructor provided below: "To connect to EC2 via Cygwin on Windows, you need to handle two key idiosyncrasies. First, the Windows ...
0
votes
0answers
18 views

Can't connect to one specific website after making VPN connection [on hold]

When I login to my VPN and immediately after try connecting to a certain website (in this case http://www.sporza.be), Chrome responds with a "Oops, Chrome couldn't connect to..." message. I have to ...
0
votes
1answer
295 views

All steps to set up and resolve subdomain.localhost to 127.0.0.1?

I suddenly feel stubborn about my subdomain on localhost not working. My /etc/hosts file looks like this: 127.0.0.1 localhost 255.255.255.255 broadcasthost ::1 localhost fe80::1%lo0 ...
0
votes
0answers
71 views

Windows 7 dns resolve problems (mostly cmd)

More about the situation: I have my dns set to 8.8.8.8 and 8.8.4.4 so these are probably fine communicator (skype/facebook chat) and all four web browsers in my system have no problem with dns ...
0
votes
1answer
239 views

Do you need a static IP address to setup a Web Server?

I'm thinking of getting a virtual server with a Linux Debian operating system. Now, does a Web server need a static IP address to register to the DNS server and point the location? or how would you ...
0
votes
1answer
30 views

How to change the dns using command prompt?

I can't change my dns using the gui. Does anyone know how to change the DNS using command prompt in windows? Thanks