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

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3
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1answer
955 views

Why do I have to keep flushing my DNS cache?

Several times a day, my Internet connection stops working on my Windows 8 computer (it's not the network, other computers on the network work fine). It happens on all of my Windows 8 computers ...
0
votes
0answers
8 views

VPN split tunnel force specific domains to go to VPN

I have a VPN server that I am connecting to on Windows 10 (pretend it is Win8) via a split tunnel. There are some domains, let's call them a.vpndomain.com and b.vpndomain.com, that I want to connect ...
0
votes
0answers
7 views

Already have Public dhcp and dns. Now i want to setup dns in private network

I have dlink router and ip address range is 192.168.1.0/24. It have dns in the router itself. So whenever executed " host 192.168.1.1 " or " nslookup 192.168.1.1 " it displays domain name everything ...
4
votes
6answers
21k views

DD-WRT serving additional DNS servers instead of just the router’s IP

I have a DD-WRT (using DD-WRT v24SP2-MULTI (03/21/11) std) router set up with DNSMasq to resolve certain domains to internal addresses and pass everything else thru. The router itself is configured to ...
0
votes
1answer
15 views

Configure printer on WAN port

I have a network where router 1 is connected to Internet and has a network printer. Router 1 is a home router with default settings. A second router (router 2) is connected to router 1 on it's wan ...
0
votes
0answers
8 views

Curl shows redirection to localhost

I am using an iMac (27-inch, Late 2013) running Yosemite 10.10.2 (14C109). Recently I ran a curl command and it appears as though there is a local proxy or server running on my computer. Here is the ...
0
votes
0answers
21 views

Both Public and Private DNS not working. How make it work properly without any conflict

I setup private network so I installed DHCP in one of my server. Now my public network DNS is not working. How can I setup DNS for private network with conflict the public network DNS? DHCP Setup. ...
423
votes
13answers
271k 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?
0
votes
1answer
552 views

Network disconnect with netgear router

I buy a netgear R6250 for my home. I have more than 10 devices connected by wifi, so it seem be good to this. But, I have a problem with it: I lost internet connection some times. I need to ...
0
votes
1answer
26 views

Locate Host Name on LAN (DNSMasq on DD-WRT)

I am running DNSMasq as both my DHCP and DNS server on my DD-WRT router. I had thought that DNSMasq was adding hosts that it registered in DHCP to the DNS server automatically, but I have a few ...
0
votes
3answers
6k views

Failover two IP addresses and one DNS record

My mail server has two WAN interfaces and I need to set up one DNS A record for my Exchange clients. In case of connection failure of one interface I wish to use the other interface, but how to set up ...
0
votes
1answer
11 views

MaraDNS- Unable to forward DNS queries

I tried forwarding DNS queries to Google DNS but it is not working. Below is the content of my /etc/mararc file: csv2 = {} csv2["example.net."] = "db.example.net" csv2["google.com."] = ...
2
votes
1answer
2k views

Aventail VPN connection doesn't work

I installed the Aventail VPN client on both the Mac and a Windows 7 machine, both on my home network. When I try to connect one or the other (I make sure one is disconnected before connecting through ...
0
votes
1answer
2k views

Windows unable to resolve hostnames

I have two Windows 7 machines on my home network that always give 'Unreachable' errors when I try to access any site. The other devices on the same network work fine (iPhone, iPad, Mac, Ubuntu) The ...
0
votes
0answers
15 views

Dns server for specific domain

Is there a way to define a dns server for a specific domain? I'm setting up a develop machine with an amp stack and i want to redirect all urls with a specific domain (i.e. project.dev) to 127.0.0.1. ...
0
votes
0answers
17 views

DNS Redirecting in Google Chrome

The other day we were attempting to redirect traffic in my office. We wanted to redirect YouTube, Facebook, and other similar sites back to our website. Originally the plan was to just use the Hosts ...
5
votes
1answer
28k views

ERR_NAME_NOT_RESOLVED in Chrome on a single site

Our internet connection at the office went down for a bit yesterday, and now Chrome can't find youtube.com. I get the ERR_NAME_NOT_RESOLVED error, even though the site loads perfectly fine in other ...
0
votes
0answers
61 views

How to setup a private captive network using Wi-Fi at a tradeshow for in-booth app demos?

We all know trades shows could charge 1,000’s of dollars for basic Internet connectivity. As an app developer what option do we have if you want to show your latest world killing app? We were ...
0
votes
0answers
25 views
+50

SMTP DNS Validation with multiple mail servers behind multiple Public IPs

I know when a Mail server receives an e-mail, it performs a "DNS 3 way check" (I think this is also sometimes called FCrDNS) as a simply test against spammers. The way I understand it to work is as ...
1
vote
1answer
13 views

Cannot access DNS from external network

I have setup a MaraDNS instance on CentOS 6.5. I can access the DNS records from local machine—on which MaraDNS is installed—by doing nslookup but cannot access the DNS server records from Internet on ...
3
votes
1answer
27 views

Blocking AAAA responses for certain domains

I'm in Ireland, and my current ISP doesn't provide native IPv6 access -- even if I wanted their consumer implementation of it (which is apparently DualStack-Lite). So I'm using Hurricane Electric's ...
-1
votes
0answers
23 views

2012 Domain Controller DNS issues

I have built a 2012 domain controller and after i install the unit no one can get on the internet. The way I set it up is I was going to let the router continue to run the DHCP process and have the ...
0
votes
0answers
11 views

Getting error ERR_NAME_RESOLUTION_FAILED

When I try to go with the browser to www.thedrupalchecklist.com I get the error ERR_NAME_RESOLUTION_FAILED. (I changed the nameservers yesterday). If I go to ...
1
vote
2answers
28 views

how can i set up BIND to use a different DNS for a specific domain

at work we are using a VPN tunnel to communicate with an external network that is set up for testing. There is also a DNS running inside this external network, and I would like to have a local DNS ...
2
votes
5answers
3k views

DNS lookup fails after resume from sleep

My Windows 7 Ultimate x64 PC has a strange networking issue. When I resume from sleep, no web pages will load (other programs such as Hamachi VPN are also unable to locate their servers). If I use ...
0
votes
1answer
26 views

Were my DNS servers changed?

I recently stupidly clicked on a suspicious link and since then, Chrome stalls for a few seconds before reaching a web page. I suspect my DNS servers may have been changed (among other possible ...
0
votes
0answers
12 views

Connected to OpenVPN server (through WiFi), changing DNS on unprotected adapter stops Internet entirely

So whenever I connect to an OpenVPN with a configuration file I notice two things: The TAP- adapter has no gateway of it's own. Is that normal? Trying to resolve this problem: I copied all the ...
3
votes
2answers
999 views

What is the correct way to plug DNS leaks when running OpenVPN?

I've set up OpenVPN on a Linux server. All my Internet traffic goes through the VPN from that server. I'm running Windows 7 at home. I noticed in Wireshark that DNS queries are not going through the ...
0
votes
0answers
22 views

Changing priorities of DNS and etc\hosts in Windows 2008 R2

The X issue One of our customers have an issue with Oracle DG - sometimes DNS is not responsive and DG connection fails. I decided to add fall back entry in etc\hosts, but it has cons too: DNS ...
2
votes
1answer
106 views

OpenVPN Client - DNS change; role of 4 FreeVPN.me profiles; How to remove DNS leak

I have configured OpenVPN client added and FreeVPN,me bundle. Tested all seems works fine. However I have few quires How do I know VPN works fine and connection is secured other than OpenVPN green ...
0
votes
0answers
13 views

How to send email from a network to a subdomain?

Scenario: Network: abc.net1 Mail Server: mail.abc.net1 Exchange email: user1@abc.net1 Internal Server: internal.abc.net1 Internal has own domain: sub.local Has exchange configured: ...
-1
votes
0answers
14 views

ISPConfig alias domain not redirecting to main domain

I have domain mydomain.net and now i managed to grab another name for it mydomain.com, but as my main domain works very well i just want to redirect the second domain i got to my first one. Well as i ...
2
votes
1answer
2k views

Random redirection to adult sites of mobile.juicyads.com

Since two days ago, almost all of my clicks open new tab and redirect to this Adult-only URL: mobile.juicyads.com/service_redirect.php?p=64686&s=124309&u=http://www.google.com Parameters p ...
1
vote
2answers
309 views

How to be able to resolve multiple domains using /etc/resolv.conf on Linux?

I'm running Ubuntu 12.04 and I'm trying to ping the following systems: system0.oldcompany.com system1.fing.oldcompany.com system2.newcompany.com system3.thing.newcompany.com My resolv.conf search ...
0
votes
0answers
14 views

Cannot browse to web sites where server is on same router

I have a cable router which provides NAT addresses 10.1.10.X as well as has static IPs on it. My local development computer is plugged directly into the router and so is the web server. The web ...
0
votes
1answer
21 views

Web browsers removing slash in URL

I have a URL (http://www.example.com/). Whenever me, a user, or a bot(search indexers) enter (http://www.example.com/Folder) the domain automatically redirects to (http://www.example.comFolder). All ...
0
votes
0answers
7 views

Can the DNS-server in FiOS-provided Actiontec router offer SRV-records?

I'm trying to teach my iOS-devices to print onto the LAN-connected printer here. The manual calls for adding certain DNS-records. On my LAN the FiOS-provided Actiontec-router is providing the ...
0
votes
0answers
32 views

Cannot open one specific website on one machine

I recently stepped upon a very weird problem. There is a website and mail server running on a domain XYZ.com (example) It is blocked only on one specific pc in the whole company (there are 10 of ...
0
votes
0answers
20 views

Windows (8.1) disable websites temporarily

I'm using windows 8.1 and I want to disable certain websites temporarily. I'm doing web development work on my machine and I do not want certain iframes (to 3rd party websites) to load and/or not send ...
0
votes
0answers
111 views

Selective ping error

As you see below some sites do load and ping successfully others has to be opened using proxy such as "filterbypass" Would this be routing problem or the DNS resolver/ firewall behind ...
2
votes
2answers
3k views

Ping fails to find host but NSLookup resolves okay

We have an intermittent problem on Windows 8 whereby Ping fails to find the host but NSLookup resolves it correctly. Ping host1 - fails with ping could not find host Ping host1.domain.local - also ...
0
votes
0answers
37 views

DD-WRT OpenVPN access DNS not resolving hostnames [on hold]

I would like to achieve VPN access to my home router running on DD-WRT, so everything will go through VPN and I will access hosts on my home network. The problem is that my local DNS is not resolving ...
1
vote
1answer
18 views

Access subdomain folder directly from IP address

I have server located under X.Y.Z.C IP address. It runs Apache2. I've added additional domain to it, let us call it A. When I want to add something to it, I have to send files to A subdirectory in ...
1
vote
0answers
29 views

AD Dynamic DNS not working with Linux IPv6 [migrated]

I have an AD DNS/DHCP enabled server. I have mixed Windows and Linux machines/servers. IPv4 is working great with DNS/DHCP, even for the Linux systems. IPv6 is working great except that it won't ...
3
votes
3answers
3k views

Router(s) Issue: DNS queries sporadically fail with multiple computers hooked in

Basically, after anywhere from 5-60 minutes, DNS queries fail for a few minutes, then slowly begin to resolve correctly. Then the cycle repeats. This occurs only when more than one computer is on the ...
0
votes
0answers
10 views

Invalid hostname in HELO sent by MUA

I have a mail server running exim4 with an ACL that drops the smtp session if the hostname in HELO is an IP address. Exim is configured to do the reverse dns check. The said ACL is the very first one ...
0
votes
0answers
36 views

The requested URL “/crossdomain.xml”, is invalid.

Every time I try to access the game lobby for a website I keep getting an error. The error only started yesterday and I am confused as to what the problem might be. I believe the problem is caused by ...
0
votes
0answers
8 views

I need to host several websites on IIS 8 in Windows Server 2012 for public access [migrated]

I have a small server running Win 2012 and IIS and I have a public IP address from ISP. I bought several domain names for my websites. Usually I buy hosting service for hosting my website. Now I need ...
6
votes
1answer
3k views

How do I setup a local DNS server on Mac OS Lion?

I had some serious lag to resolve website address and sometimes things simply wouldn't load (pages kept loading for 5+ minutes without even a timeout error). So I had setup a local dns server/cache ...
0
votes
0answers
7 views

Pin Hostnames to MAC Addresses when using Dynamic DNS Updates

I want to start using dynamic DNS updates for an internal system. I'd like the DNS server to pin a hostname to a MAC address so that once the host registers, then the DNS server will not allow others ...