The Domain Name System, usually referred to by the acronym DNS, is a hierarchical, distributed database where the keys are domain names.

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How to find out how DNS is resolved on client computer?

On a windows 7 client, when I ping a LAN host MYSTERY, it gives me the correct IP. However, when I do nslookup MYSTERY, it says non-existent domain. I checked both the DNS listed in ipconfig and find ...
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2answers
29 views

Redirecting to game ports based on subdomain? [on hold]

I've been browsing, looking for an answer and there does not seem to be one that works. Here's the situation: I have a web server (running Apache) that I only have access to the files for. It hosts ...
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1answer
30 views

my host has no PTR record

when i check my host i get this host myIP xx.xxx.xx.103.in-addr.arpa has no PTR record So i dd this to my /var/named/domainname.com.db myHostname. IN A myIP xx.xxx.xx.103.in-addr.arpa. IN PTR ...
4
votes
1answer
244 views

What does MX in SPF mean? [duplicate]

I'm setting up an email server, and I'm a bit confused by SPF. Following some examples, I set my SPF record as follows... v=spf1 mx ip4:1.2.3.4 mx:mail.mydomain.com ptr:1.2.3.4 -all I follow what ...
0
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0answers
6 views

Samba4 and BIND9_DLZ - static records with samba_dnsupdate dynamic dlz

I have some records in bind for my DNS zone. Now I want to configure Samba4 Active Directory which wants to add some dynamic records into my zone. So I include /var/lib/samba/private/named.conf in my ...
1
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1answer
51 views

Certificate error: The name in the certificate does not match…, Outlook client using .local

We have recently had to decommission our .local certificate from Godaddy, as it will not be valid anymore. The new certificate contains the following names: mail.mydomain.com ...
3
votes
0answers
29 views

Possible to have DHCP hand out different DNS server address when using different tunnel?

We have several ASA 5505 deployed. Currently, we have a setup where the local ASA is answering DHCP queries and is configuring clients with two DNS servers: our DR site DNS server (we use AD) and a ...
1
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1answer
28 views

Certificate Errors on “redirection” in DNS RPZ of https/ssl

I've set up a DNS RPZ where I "redirect" users to a walled garden using DNS RPZ records when users try to access a list of bad sites. Let's say a user tries to access badsite.com. The redirection to ...
0
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0answers
29 views

Can't ping hostname, but 'ping -a' resolves

I'm trying to ping a Windows PC through VPN by hostname. WINS is set up on all devices. I only get a reply from some PCs. On devices that can't be ping'd, I can do ping -a to resolve the hostname. For ...
0
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1answer
38 views

Configure which Nameserver responds to domain name [on hold]

I have a domain with four name servers (Two behind a Firewall and two on the public network). We were required to have two of the servers behind the firewall. It's causing issues when bringing new ...
0
votes
1answer
65 views

Redirect DNS requests for 8.8.8.8 to a local DNS inside a LAN

I have a local network (10.0.0.0/24) with a gateway (I'll call it G, IP 10.0.0.1), a device (I'll call it N, IP 10.0.0.31) making DNS requests directly to 8.8.8.8 completely ignoring DHCP setting for ...
0
votes
1answer
32 views

Any way to block DNS response using BIND?

I am using BIND as my DNS-server. I have disabled recursive DNS-request. Now I am under some kind of attack. Is there any was to block this or do I have to let it go? My query log: client ...
0
votes
0answers
16 views

Local DNS lookups sent to Proxy

There is one laptop in the domain that, for some reason, sends traffic meant for local servers through the proxy. For example: surfing to http://Hostname1 The client has in it's proxy exceptions: ...
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votes
1answer
18 views

NS record in bind9 zone file

I met a strange scenario today. Normally when we setup a bind9 zone record, we put the NS record same as our ORIGIN. However today I found one working bind9 setup in the production site which has ...
0
votes
2answers
22 views

IIS virtual directory application and DNS

It is a bit hard to describe but I will do my best... I have an internet application which is implemented in IIS 6.0 as virtual directory (I'll call it 'ItsMyParty') in the format of ...
0
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0answers
3 views

Running ipv6 tunnel on windows 7 alongside local dns server [migrated]

I am running an IPv6 tunnel via Hurricane Electric in Windows 7, which has been working fine for ages. My router does not support IPv6 at all natively. I am also experimenting with running a local ...
15
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2answers
1k views
+50

Do the SSH or FTP protocols tell the server to which domain I am trying to connect?

When using the ssh or ftp commands from the Bash shell, does the server that I am connecting to learn of the domain name used? I understand that the domain name is locally translated into an IP ...
-1
votes
2answers
32 views

I want to make non-www domain redirect to my www domain [duplicate]

I was wondering on how would I make my non-www domain would be direct to www domain. I've tried to configure my .htacces to redirect my non-www to www but since non-www was defualt it was infinitely ...
1
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2answers
20 views

Hostname lookup fails, name server set up correctly

We have a small network, with a main server (hosting our own website and functioning as a name server) and some web hosting servers. Since yesterday we have an issue with a domain of a client of ours ...
4
votes
2answers
81 views
+150

Windows DNS: Is there a way to partition a domain based on subnets

In our organization, we have two separate groups which share network address space and a domain. A couple of slices of /24 are allocated to my group, while the rest is allocated to our internal IT ...
0
votes
1answer
24 views

Forward/Redirect request of Elastic IP to Heroku [on hold]

I have a hardware with a Elastic IP(Amazon) hardcoded in the firmware(I know, it was a dumb idea, but wasnt my idea). Now I have to forward a request of this EIP(Elastic IP) to a Heroku instance. I ...
0
votes
1answer
21 views

Redirect email for redirected domain [on hold]

I have two domain names with a registrar, one points to a server running plesk with a subscription setup to host the website. The second domain name simply redirects to the first using the registrars ...
0
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0answers
18 views

Run server on home PC [on hold]

I am newbie. I have static IP address. Is it possible to serve my web site on my local PC.While registering domain I have to specify NS server. I don't clearly understand what is the purpose of this. ...
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votes
1answer
25 views

Master DNS server doesn't serve the clients [on hold]

Until yesterday I had a dedicated server with 2 IPs and Plesk. The NS, NS2 is running on same server, I'm using Plesk to add the domain records. Everything I worked great. Yesterday I had to buy an ...
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votes
1answer
53 views

Using DNS to redirect website [duplicate]

I would like to redirect domain1.com to domain2.com using DNS. I would further like to redirect www.domain1.com to www.domain2.com. For domain1.com zone file, do I need to have an A record or are ...
0
votes
1answer
8 views

Windows Server 2008 sending regular TCP DNS requests to Forwarders

Our organization's primary DNS server is a Windows Server 2008 which two Forwarders set. I happened to notice on our firewall that this server is sending out regular TCP requests to the Forwarders in ...
3
votes
3answers
121 views

MX or A record issues

We have a mail server (Mailenable) which we are using to sell email accounts to our clients. We have one client that could not send email to a specific domain and they receieve this error from the ...
0
votes
0answers
44 views

DNS issue? Currently no logon servers available

While I have read through lots of post that have the same error message, I have not been able to find a solution that works for my situation. I have one server, Windows 2008, that I rebuilt about a ...
-3
votes
0answers
27 views

DNS Server Hardware Specifications for 100,000 or 200,000 Queries Per Second (QPS) [duplicate]

I hope everyone is fine. I am planning a load testing on DNS Server. I want a single client to send upto 200,000 QPS. The thing is that now I am going to buy/utilise the Hardware that will run the ...
0
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0answers
26 views

rndc fails to add zone, bind99 freebsd

I solved all rndc key errors and appear to perform most functions but when testing the addzone feature I am getting this error while trying to use rndc to add a fresh new zone -> rndc addzone ...
0
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0answers
22 views

Server making outbound dns requests [duplicate]

I have a cloud server with Rackspace and they have blocked DNS because of "excessive queries". I can find the info below when running ps, but I can not seem to locate where the file is that is making ...
0
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0answers
11 views

How to add master zone through PowerDNS API?

We have a PowerDNS master-slave setup. Now we want to use the PowerDNS API to automatically create master zones on the master server from our application. We created a master zone template, so when a ...
0
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1answer
12 views

Web content listing. Whitelist crafting [closed]

What I'm trying to make easier is adding web portals to the whitelist on the firewall. I am looking for an easier way to get all sub domains and resources like google APIs. Sometimes it is hard to ...
0
votes
1answer
30 views

Is it possible to have 1 IP Address for a cluster of recursive DNS Servers?

Is it possible to have 1 or two static IP Address for a cluster of recursive (but not open relay) DNS Bind Servers that are being hosted on different cloud vpn providers? We want to have two DNS ...
-1
votes
0answers
23 views

Where can I find a good Anycast Provider? [closed]

We run a VPN Service (much like unblock-us/blockless). We have two DNS servers that handle DNS requests. Unfortunately for us, they are currently at the same hosting company. We did talk about having ...
0
votes
1answer
62 views

Moving a web server without moving the email server

I need to move a client's website off their old host and onto their new host without changing their email server. I've read this extremely thorough answer on a similar question ...
3
votes
1answer
119 views

Can vSphere PowerCLI cmdlets execute from a PS1 file?

I'm looking to write an admin script that will: Delete a VM from vSphere Delete the VM's DNS entry Release the VM's IP address with our Windows DHCP server I can accomplish the first item via ...
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votes
1answer
39 views

Individual accounts being spammed on server, even though DNS not hosted [closed]

Disclaimer: Please pardon the newbery! I've got a dedicated linux server from HostGator that has around 100 accounts on it. Lately, dozens of these accounts get bombarded with junk mail a few times a ...
0
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0answers
23 views

Setting up local DNS cache? [closed]

The currently available DNS servers for our business (in Indonesia) are extremely slow and seem to take a very long time to update new entries. We run Ubuntu servers (14.04) in my company, and ...
0
votes
0answers
9 views

Link A record with Laravel public directory

I set up VPS server. There I have Laravel deployed (/var/www/html/mysite/public). The issue is, in must be on mysubdomain.mysite.com. So i configured A Record for VPS IP and it really works. I set ...
0
votes
1answer
35 views

Bind9 on a dedicated server [duplicate]

I am using bind9 on a dedicated vps with ip: xx.xx.xx.xx And i have vps server with webserver and its ip: yy.yy.yy.yy Question: it is correct to point nameservers, e.g. ns1.domain.com/ns2.domain.com ...
0
votes
1answer
25 views

Debian 6 Not resolving hostnames

Regards, I've run into the following issue recently following an intrusion in to my VPS: Although resolv.conf is properly configured with the correct DNS servers the VPS can not resolve hosts. I ...
0
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0answers
5 views

Accessing localhost over WiFi by name [migrated]

This is my configuration: 1. Ubuntu 14.04 LAMPP server (localhost). 2. WiFi Access Point on ubuntu server. 3. Android device connected to WiFi access point. I can access localhost from android device ...
2
votes
2answers
183 views

Configuring Preferred/Alternate DNS Servers on a DNS server

I currently am running a single DNS server. If I don't set a Preferred/Alternate DNS server on the Ethernet controller and run the Best Practices Analyzer I get the following results: If I do ...
0
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4answers
38 views

Set up the right mx records for postfix/dovecot server

I recently set up a postfix/dovecot mail-server on my VPS (OVH), but for some reason I cannot receive e-mail through it. Is anyone able to check my DNS-records and my Postfix/dovecot configuration to ...
0
votes
0answers
9 views

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

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 ...
0
votes
1answer
39 views

Fragmented DNS Packet

The DNS response against my domain is 1228 bytes long and I need the packet to get fragmented in 3 packets. To achieve this I have set the MTU at name server (bind9 running on the machine) to be 500. ...
0
votes
1answer
42 views

VPS can ping host by IP but not by name

My Debian VPS can ping all host by name and IP but there's one host I can't ping by name. Ping by name failed but successful with IP However on my home PC i can ping that host by name and IP. I ...
-4
votes
0answers
20 views

Simulate Domain registrations on local network [closed]

For academic purposes, I would like to simulate everything from registring domain to setting up VPS and website on local network. I would need to simulate name registrars, some sort of enviroment for ...
-1
votes
0answers
19 views

Sub Domain not working?

I'm running nginx on ubuntu 14.04 LTS, on a kimsufi dedicated server. I'm pointing my domain (www.angrycrows.com) to my server using an A record. I don't have bind9 / dns hosting set up on my box. ...