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

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How to connect two debian VMs using vmware workstation so that one acts as a web server and the other as web client

I want to connect two virtual machines running using VMWare workstations - Debian Linux and I have setup private DNS server on one VM named "Server" and other VM is named "client". I am trying to ...
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2answers
147 views

Cascading Routers (LAN to WAN) and DNS

I live in a shotgun style house and thus am required to have to wireless routers to reach every room. The first router is in my roommate's room and has an IP address of 192.168.1.1 with a DHCP pool ...
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52 views

What more user-friendly options are available for overriding DNS than the HOSTS file? [closed]

I've used the HOSTS file for years to override DNS to allow me to view test versions of a site etc. running as if it were live. However, helping others who might want to see the site before it goes ...
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62 views

SSH Connect to Domain that points to different IP

A bit of background info, first: I have a domain that is configured to run a mail server, iRedadmin, postfix, etc. I can receive and send email and everything works great. The problem lies in the ...
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1answer
50 views

WIFI failures: No Functioning DNS available

WIFI always disconnects, and reports "no internet access". It might connect back after some time. It happens in many different locations: at home, in coffee shops etc. My colleague told me that it ...
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3answers
3k views

How does DynamicDNS act immediately?

My understanding of the core functionality of DNS is to provide a naming/mapping service between domain names (e.g. blah-whatever.com) and IP addresses (e.g. 100.2.3.4). Furthermore, my understanding ...
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2answers
5k views

How does one clear dig's DNS cache on Ubuntu?

I'm trying to use dig to verify some DNS information, but I'm only seeing old results. From what I've read, Ubuntu doesn't cache DNS by default at an OS level. If that's true, then the dig command has ...
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1answer
17 views

Add CAA and SSHFP records to TinyDNS?

One of the folks I work with is a fan of Bernstein's TinyDNS, so we run it internally. I'm having trouble figuring to how to add a CAA record and a SSHFP record to the server. There's a page on ...
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611 views

Find all current DNS records

I have a domain, its a client's. Their domain needs moving, but the current provider is being difficult/slow in providing details on all the existing DNS records. Plus I have not been able to get in ...
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1answer
35 views

I see frequent PTR requests in my wireshark capture, are they normal?

Lately I've been getting very frequent DNS lookup failuers (I use Google's dns servers) so I set up wireshark to see some of the traffic and I see many PTR requests for IP's that don't seem relevant. ...
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48 views

Dynamic DNS Name to resolve to Internal Server IP Address

I need to setup a DNS route so that the Dynamic DNS Name resolves to the Server when users are connected on the same network as the server, when users use any other internet connection the Dynamic DNS ...
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27 views

cant browse dev server on lan, but can ping

Ive got a weird issue. My mac book has its hosts file configured with the IP Address of my windows dev server hosted on my lan. I can ping the domain name on my lan without any issue. homedev.local ...
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56 views

Periodic DNS issue?

I have a periodic issue with DNS on a network. When the issue arises, DNS lookups are extremely slow or fails completely. All nodes have been configured to use the OpenDNS servers, but I have also ...
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17 views

Why do we need A record along with Glue Record? [closed]

When setting up private DNS we first create (1) Glue records on the Registry DNS level. Say, dns1.domain.com has the IP of 1.2.3.4 Then we need to create the similar (2) A records in the zone file of ...
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1answer
311 views

Guest with static IP - slow internet connection, random pings

I have Ubuntu 14.04 virtual machine with static ip and bridged network. Internet connection on host is wireless and most of the time works well, but sometimes it is a little bit slower too, but not ...
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2answers
92 views

TTL when querying for any record with dig

This question comes from this topic. When I do this I get the remaining seconds until the A record expires in the queried nameserver: dig stackexchange.com However, if I do this I get the ...
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1answer
43 views

How to use my own DNS settings as an OpenVPN client?

I am using Ubuntu 14.04 and I’m connecting to a VPN server using OpenVPN via Gnome Network Manager. I prefer to use OpenNic as my DNS but my VPN provider uses Google Public DNS. My OpenNic DNS ...
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88 views

Windows 8.1 DNS Issues

I'm currently having DNS issues on my Windows 8.1 Desktop that happens only on my desktop. When I first boot up, if I try to browse to or ping any website via an internet browser or command prompt ...
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3answers
89 views

Can a DNS domain name point to a folder on a server?

So I have a DNS domain name for my computer so that I can connect to it easily without remembering my IP address every time and it works great. I also have a website that is being hosted off my ...
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4answers
283 views

Why google dns give the wrong name server for these adult domains

This is a continuation of question How to track which DNS my computer is using My ISP following government orders, block adult sites. Usually it's easy to penetrate the blocking. Just use google name ...
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0answers
51 views

I have a web server, and a local server. I want to host gitlab on my local server, and access it through a subdomain on the domain I own

How do I go about doing this? I don't need to know about the networking aspect as far as my home is concerned, but I'm not familiar with DNS settings, and I've really never messed with advanced ...
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42 views

Single machine on my network can't load a specific website

One windows 7 machine on my local home network is having trouble loading www.reddit.com I'm on a hardline into a linksys e1200 router. Other devices (laptop, phone, etc) have had no issues (wireless ...
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2answers
142 views

puzzling DNS behaviour (ubuntu)

(All IPs and names have been censored, hopefully) This morning we had some connectivity problems in one of our servers. It turns out that changing our connection configuration to be IP-based (not ...
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1answer
115 views

How to track which DNS my computer is using

My ISP poison my DNS to block adult sites. If I do Pinging adultfriendfinder.com [202.73.99.3] with 32 byt Reply from 202.73.99.3: bytes=32 time=9ms TTL=61 Reply from 202.73.99.3: bytes=32 time=18ms ...
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63 views

two different name servers for home network and vpn network

As a disclaimer: I am new to linux. I have the following setup: At home I have a router (AVM fritz box) that serves as a dhcp server and "dns" server for my local network. I don't know if it is a ...
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23 views

Change HTTP/S ports in OS X Server?

I am setting up OS X Server on a local computer (for managing a few devices.) I contacted my ISP to allow me to set up port forwarding, and they said that incoming ports 80 and 443 are disabled. Which ...
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1answer
8 views

How can a host connect to a domain if the domain address changes and the entry is still cached?

I’m studying the DNS system and when I got to DNS cache I started wondering how could a host reach a cached domain if the domain were to change its IP. Basically, the idea is: The host connects to ...
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1answer
31 views

Win Server 2008 DHCP on Virtual Network

I'm new to network stuff. I have 2 virtual computers running in VirtualBox: 1 on Win XP and 1 on Win Server 2008. I'm trying to create a DHCP server and DNS server on my server. I know how to add ...
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1answer
175 views

Setting up SRV records for Minecraft with Cloudflare

I can't seem to be able to setup SRV records for my minecraft server on cloudflare. I have all my name servers right. I'll show a screenshot of what I'm doing I have 2 records testing different ...
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258 views

Windows 8.1 cannot access network computers can access internet. DNS server not responding

I'm running on a Windows 8.1 machine and I've got two other computers on the network. One is on Windows 7, the other Ubuntu 14. All 3 are connected to the Linksys E2500 router by wire. I recently ...
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1answer
186 views

Kali Linux inside VMWare using NAT: DNS not resolving names

I have a Kali Linux installed in VMWare Workstation. The virtual machines is configured for using NAT. The host server is Windows 8.1. DNS in Kali is not working: $ ping -c1 www.google.es ping: ...
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297 views

Cisco AnyConnect VPN - Internet Access in Parallels VM, but not in VMWare VM?

I run OS X Yosemite and have the latest versions of Parallels and VMWare Fusion. I had been running a Win7x64 Parallels VM happily for a while, until it started to lose stability. I created a new ...
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2answers
1k views

Funny web requests in Charles proxy, is that a virus?

I'm seeing funny URL requests in Charles with seemingly random characters (see below). All the requests fail but it looks a lot like a virus. How can I know which application sent them?
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281 views

Bitdefender Firewall blocking Wifi (trusted network), No DNS probe finished

Bitdefender has blocked my wifi network multiple times, and when i load the internet google chrome says DNS probe not finished. The only way i can get on to the internet is to turn off the fire wall ...
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1answer
191 views

Can't resolve internal/private DNS entries over VPN connection

I have a basic VPN setup that allows me to connect to my AWS VPC via an OpenVPN client (tunnelblick 3.5). There is an OpenVPN sever (Ubuntu 12.4) that is running in the VPC which creates the ...
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1answer
58 views

Why I can't open my localhost site with internet IP?

About two years ago, I had a different connection and users—even me—were able to open my site via my internet IP or connect to my TeamSpeakServer. But ever since I changed—I reinstalled Windows too—no ...
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1answer
55 views

Intermittent loss of DNS server

Lately I have been having this issue which is often preceded by using the remote shutdown tool of teamviewer. After the computer (Windows 7) is rebooted it initially connects to the network and from ...
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200 views

Connection interrupted or reset for certain websites only

I think I should start by saying I only encounter this with one website http://reddit.com on all browsers. The problem is whenever I try to load that website it won't load 95% of the time and give me ...
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1answer
206 views

How to block specific sites on Asus wifi router?

I have this router (Asus Wireless-N300 Router). Also I have Windows 7 workstation and ipad 4. The workstation is connected to router with help a ethernet cable. Ipad 4 gets internet on wifi. I want ...
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48 views

Preferred DNS Server Settings on a Domain using Multiple DNS Servers?

I manage a small business network with two separate physical locations, these locations are connected using a pair of VPN Routers(192.168.1.1, and 192.168.128.1). The primary location uses a DNS ...
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1answer
61 views

How domain provider's DNS name server entries work?

Scenario: You buy domain abc.com from provider XYZ. You want to host your own DNS server on example.com (on ns1.example.com ns2.example.com). The domain and both subdomains will point to same IP. XYZ ...
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2answers
53 views

A specific website isn't working on my computer

A website, one website, is not loading on my computer [Windows 7]. It loads on other people's computers. I've tried several things - > ipconfig /flushdns > ping [name of website] -> no ...
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41 views

MX Records / DNS settings (mail not received)

We have a VPS running Plesk and I have the following DNS records set in Plesk DNS manager; specifics have been changed change for privacy. But the mailbox does not appear to be receiving mail ...
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2answers
115 views

Why is my DNS not resolving my website's IP?

I have a laptop with windows 7 OS. and I am unable to access my own website: http://dreampsychics.com, as well as the subdomain: http://www.admin.dreampsychics.com. I have a DSL connection and ISP is ...
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1answer
37 views

Unable to set up name servers

I've set up a server at my house running cPanel and CentOS. I'm unable to point a domain to the server using nameserver's. I can how ever point it to my server using an A record. I've set up port ...
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18 views

Is there a gtld that is officially reserved for nonroutable/private addresses?

My Verizon Quantum router fires up a dns server automatically that allows all devices in my house to have DNS addresses. That's all nice, but the 'local domain' is .fios-router.home. The use of .home ...
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1answer
45 views

What is needed to access a CCTV system (based on a static IP)?

I was wondering (since I'm a beginner or intermediate in computer networks), what do you need to access a CCTV system. Let's suppose we have a CCTV system configured with an username and password on ...
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73 views

How do I set up a Synology NAS so it can be accessed by URL/name instead of by IP address

Example On Windows, I open Run with Win+R and enter \\192.168.1.30. The trouble is, every time the NAS reboots, that IP address may change. Question So that's why I'd prefer to access the NAS' ...
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67 views

550-Please deliver mail to the address specified in the MX records for this 550 domain

I have a PHP script which emails the results of a form to a specified address. Previously it was working fine but now it's not sending email anymore. When I check the error log, I see this error: ...
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109 views

Internet Connection Sharing with Wireless Hosted Network (WHN) is not providing a DNS server for WHN clients

On Windows 8, I'm using a wireless hosted network with ICS. I have one interface connected to internet, and my WiFi interface as a wireless access point. The interface that is connected to internet is ...