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

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Configuration changes going from static IP to dynamic IP for Comcast

I have limited networking experience and I am looking for help to get my internet connect back up and running. I currently have Comcast internet modem which is 10.1.10.1. My pfsense router is 10.0.0....
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1answer
81 views

“the dns server is not a valid ip address” error

I today I tried to set google's dns server (8.8.8.8) as my dns but I can't. when I click OK a popup comes out saying "the dns server 8.8.8.8 is not a valid ip address", I'm wondering why, I always ...
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2answers
374 views

Unexpected DNS entries returned

I'm having been getting a weird DNS response recently. If I ping any unresolved DNS (without tld, I.e. abc instead of abc.com), it will return the IP 72.167.34.97. If I would do it in the browser, it ...
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57 views

Can't ping specific device

I have these nodes on the same network Sasmung GT-S5300 192.168.12.38 Asus Zenfone 5 192.168.12.37 pc(windows 7) 192.168.12.36 I tried to access my pc with my samsung through web browser, and ...
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1answer
74 views

Netsh the filename directory name or volume label syntax is incorrect

I would like to change an IP address in a Wireless network connection with a cmd line. I have tried: Netsh -c "interface ipv4" set address name=”Wireless Network Connection” static 192.168.168.6 255....
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41 views

Yahoo won't load, but pings okay

halfway thru the day, Yahoo.com stopped loading. it comes to ERR_CONNECTION_ABORTED on Chrome. i also tried Firefox and IE11, with no better results. it works on my cell network, but not on any ...
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1answer
49 views

Router crashes if download speed goes to high

If I cap my download speed to 1.5 mb/s or 2 mb/s my internet is stable however if I set the download speed cap to unlimited or 3+ mb/s it looks like my router crashes and my internet stops. During ...
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1answer
26 views

openssl s_client returns DNS error

When trying to connect to a site using openssl, I get the following error. $> openssl s_client -connect www.citibank.com:443 getaddrinfo: No address associated with hostname connect:errno=2 But ...
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1answer
29 views

IPv6 name resolution fails

My internet connection is provided by my university Case 1 My University -> Laptop direct connection Everything works fine here Case 2 My University -> Netgear WNR614 with DHCP -> Laptop IPv4 ...
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15answers
462k 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?
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1answer
40 views

Acrylic DNS Hosts not refresh

I've installed current version (0.9.31) acrylic DNS on Windows 8 machine and set DNS address to 127.0.0.1 in TCP/IP v4 settings. Then I added in ArcylicHosts entry: 127.0.0.1 *.dev for wildcards. ...
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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 ...
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23 views

Redirecting wildcard domain to local ip address

I try to have my local workstation redirect a complete wildcard subdomain to a specific ip address. I run VirtualBox on my CentOS 7.2-1511 which provides a VM on 192.168.11.11 (for those interested: ...
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1answer
31 views

Blocking the ISP's ads appearing after a possible DNS grab and redirect via port 53?

I'm asking this question here because I already asked it on ProWebmasters and the moderators said the people on SuperUser might be able to answer it. The question: http://webmasters.stackexchange....
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1answer
223 views

SPF Records causing too many DNS lookups

I'm just setting up SPF records on our DNS server and have run into the problem that there are too many DNS lookups occurring. My SPF records include the mail server (outlook), Mailchimp (for email ...
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2answers
68 views

How do I completely flush dns on windows 10?

There's a domain that my PC keeps resolving to 127.0.0.1, I made sure my etc/hosts file does not contain that domain, and I kept running ipconfig /flushdns, but the domain still resolves to 127.0.0.1. ...
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1answer
32 views

Can dnsmasq resolve specific domain by more than one server?

Consider company compx has the domain compx.com and without special configuration, dnsmasq can resolve computers in this domain just fine. Now I log into the VPN of compx.com with vpnc. Instead of ...
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1answer
47 views

Reverse DNS zone not working publicly

I set up a dns server to run publicly and everything is running ok, except for the reverse zone, which locally is successful but doing the query in any other dns gives the following error: root@ns1:/#...
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1answer
28 views

BInd9 not woking with ipv4 by default

I have an Debian running Bind9 with many logs like error (network unreachable) resolving so set -4 in /etc/default/bind9 but not forced to work with ipv4 look the /etc/default/bind9 # run ...
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1answer
48 views

how to block connection to a domain in firefox

i need to utterly block a domain from even being connected to. obviously, addons wont work, since those only check the URL of the site the browser is navigating to, not domains the browser is ...
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2answers
196 views

NETGEAR DGN2200v2 router's DNS server not working properly

I have configured my DGN2200v2 to do the following: Reserve the LAN address for my mac to 10.0.0.11 Use 10.0.0.11 as primary DNS server, and 8.8.8.8 as secondary Now I would expect the router to ...
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35 views

Shrewsoft VPN software not resolving server names after establishing tunnel

We have a Cisco ASA 5510. We installed the Shrewsoft Client 2.2.2 on a Windows 10 64bit machine. Prior to joining the machine to the domain, everything worked fine. It was resolving names to the ...
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1answer
42 views

Why would my TP-Link ADSL+Router not allow my computer to access Internet?

So, my workplace got a new TP-Link Modem+Router installed a few days back and it's giving me trouble ever since. Everyone's computers and other devices can access Internet via the router, even I can ...
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1answer
108 views

DNS error when connecting to router via IP

Today, I tried to connect to my router using it's IP (192.168.x.x) and I got a ERR_NAME_NOT_RESOLVED on Google Chrome / Windows 10. I do use Google's DNS server (8.8.8.8;8.8.4.4), but the issue did ...
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1answer
19 views

bind9 as local caching name server and /etc/resolv.conf

I'm trying to set up BIND9 as a local caching DNS server. I'm about to do that on all my systems: Linux, SmartOS, Mac OS X. Seems like it's quite easy to setup bind for that. My question is: Do I need ...
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2answers
75 views

Unable to receive external emails

Our domain subscription was cancelled this morning due to an expired credit card on the account. A slew of problems followed. We got our domain back up and running and Most of the problems have been ...
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1answer
18 views

Restrict|Limit DNS Nameservers

I'm running local DNS (BIND9 on primary and secondary Ubuntu servers). On my Ubuntu desktop, however, I've noticed that while it usually seems to be resolving addresses properly with the local DNS ...
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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 ...
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1answer
53 views

Can access the host via browser or cUrl but cannot ping

C:\>curl.exe http://google.com <!DOCTYPE html><html><head><title> ... </html> C:\>ping google.com Ping request could not find host google.com. Please check the name ...
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1answer
236 views

DNS service discovery using Consul in Docker Swarm

I'm trying to get service discovery working using consul DNS. I've set up a docker swarm with a consul cluster functioning as the key/value pair backend required by swarm as well as functioning as the ...
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61 views

How to block the DNS query on DNS server from Windows machine

We have windows 7 machine which was on domain(Windows 2008 server) but Now We have to remove the Windows server from network and we can't remove the domain from client machine. Setup the another DNS ...
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2answers
537 views

nslookup returning fake results for one particular domain

I've just noticed some very strange and concerning results when I attempted to do an nslookup for a one of my domain names from one of my hosted virtual servers. The domain [mydomain].info is ...
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25 views

Unbound DNS: Setting up an NFS Share to Bring `/dev` into the Software's `chroot` Jail

NOTE: This question follows up on the question 'Unbound DNS: Troubleshooting/Resolving Unbound Configuration Problems?'      Like this question's title says, I'm trying to ...
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1answer
39 views

Unbound DNS: Troubleshooting/Resolving Unbound Configuration Problems?

     Every time I try to launch the Unbound DNS server via Homebrew Services with the command 'sudo brew services start unbound,' I start seeing log entries of the following ...
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18 views

How to use one automatic and one manual dns entry in windows?

For many days I've seen DNS issues with the WiFi network in our hostel. So I wanted to use the Google DNS server. But when I go to office, office DNS should be used otherwise internal sites won't ...
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1answer
39 views

Confusion regarding DNS query vs HOSTS file

With the subject, I have windows/linux machine and In which installed virtualbox and setup 192.168.11.19 ip and entry www.abc.com in hosts file. We have setup DNS server/filter on network and setup ...
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1answer
17 views

Multiple Name Servers on one Domain

Is it possible to have two sets of nameservers for one domain... e.g. ns-1382.awsdns-44.org needed for site running of AWS and NS29.DOMAINCONTROL.COMNS30.DOMAINCONTROL.COM required by another ...
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6answers
22k 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 ...
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1answer
12 views

move from old hosting company to AWS

I have a website www.website.com, it is hosted with company A, I have built a new site on AWS with a temporary URL www.tempurl.com I want to make it so www.website.com points at the new site. I want ...
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38 views

nslookup is automatically searching for FQDN

i set up test.com domain and DNS on windows 2012 server. i join test.com domain from windows 8.1 PC and using internet everyday. everything was fine. but, this morning, the internet sharing from ...
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1answer
66 views

DNS resolution differs between ping and browsers

I've been in charge to move a web servers from our office to a datacenter. Its IP has changed, and I have updated the DNS accordingly. This was 6 days ago. Lets say its DNS name is customerarea....
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1answer
84 views

Windows 10 VPN is not using DNS suffix in lookups

Our VPN is configured to send the domain-name-server and domain-search parameters from our DHCP server to connected clients. However, we've been experiencing issues with the domain name resolution - ...
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89 views

Wifi access point no internet connection

Situation There's a intranet with access to the internet. However, you can only gain access to this network, and therefore the internet, if your device has a whitelisted MAC address. This is no ...
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1answer
192 views

OpenWRT Chaos Calmer 15.05 DNS forwarding, custom DNS Server, DHCP option - nothing works

Okay, so essentially I'm trying to only forward one very specific address over one of those geo unblock dns proxy services. Namely Pandora.com. Don't judge, I like their raido stations better than ...
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0answers
18 views

How to set up dnsmasq on PC to mimic router's comfort functions?

I want to move the DNS functionality from my router to a PC running dnsmasq on the network. The basic setup is up and running, but I am missing the following functions the router had implemented: ...
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1answer
22 views

Mapping device hostnames to DNS automatically in DDWRT

I already know how to accomplish this manually using a host file and static ip addresses I want to map all hostnames to their IPs with a DNS entry MY-COMPUTER -> my-computer.local -> 10.0.0.1 ...
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2answers
3k views

Setting up a DNS server

My dad is currently using a VPN into my server (running Windows Home Server 2011) so that he can access iPlayer from Portugal. He's been looking at Netflix and while I have 100mb internet, I'd rather ...
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1answer
3k views

Windows 8 Chrome DNS issue

Sometimes when I want to visit random site I get "The server at www.something.here can't be found, because the DNS lookup failed" which looks pretty standard. When I go to "chrome://net-internals/#dns"...
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4answers
30k views

Change DNS Server From Terminal (or script) on Mac OS X

How can I change my DNS server from the Terminal on Mac OS X? [I need this because my DNS is not working correctly with my VPN. Sometimes it's using the DNS for my main connection, and sometimes it's ...
5
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2answers
9k views

Why does yum update fail in CentOS 6.4?

I am using CentOS 6.4 in a corporate lab, and the yum update fails with the below error: I am able to access the same repositories through the browser. [root@LAB1 ~]# yum update Loaded plugins: ...