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

learn more… | top users | synonyms (1)

0
votes
1answer
22 views

OpenVPN - how to make the client names visible

I am using openvpn. Once the clients are connected, I would like that they can be addressed by using the names instead of the ip addresses. e.g. instead of "ping 10.8.0.2" I can use "ping ...
0
votes
1answer
16 views

Cent OS - OpenVPN client connects but can't access internet

I set up openVPN 2.3 on a centOS 6.5 system I could connect with my windows client to the server. client gets IP address and DNS entries but when I like to access the internet with my client it does ...
0
votes
0answers
11 views

Which host(s) to include in SPF record to prevent email spoofing [duplicate]

I've got domain name and email hosting from a third-party hosting provider (1and1). Some of the email addresses under the domain are being spoofed by spammers. In order to mitigate this I'd like to ...
0
votes
0answers
16 views

Marathon containers load balanced with Haproxy and consul return random 503 requests

Currenty the architecture is organised like this: 192.168.1.10, 192.168.1.11, 192.168.1.12 - mesos master with marathon and consul server 192.168.1.21, 192.168.1.22, 192.168.1.23 - three mesos ...
1
vote
1answer
33 views

Join Computer to Domain with Seperate Active Directory and DNS Servers [on hold]

I'm trying to understand how to join a client to a Windows domain that has a separate AD and DNS server. I have installed one server with the AD role and one server with the DNS role. Even if I ...
-5
votes
0answers
31 views

Free Linux Server? [on hold]

Yes, yes, I know the drill, any free server you'll stumble upon is either a fraud, or works absolutely horrible but, is there any site I could use to host a small pi-hole (DNS) server on for a small ...
1
vote
0answers
15 views

Apache2 virtualhost serving on unspecified domains

I'm trying to set up my amazonaws EC2 instance with a wordpress HTTP server (blog.mysite.com) through apache and a node/express HTTP server ([www.]mysite.com) both running on port 80. From what I've ...
1
vote
1answer
19 views

Domain and hosting with different providers

Domain is registered with one company and hosting with another. I am reading that to point the domain to the hosting I have to change the nameserver to point to the hosting company's nameservers. This ...
4
votes
2answers
62 views

How are DNS timeouts supposed to work?

I recently had a problem where a remote service requesting the IP address for my server (with a hosted DNS provider) was responding with: DNS problem: SERVFAIL looking up A for mysql.xavamedia.nl ...
-1
votes
1answer
24 views

Glue record not working… sort of

I am trying to set up my VPS with DNS. My ip is 89.34.27.101 . The domain I'm trying to register at is http://marbleblastultra.tk . I've registered glue records and put the A record into my Control ...
0
votes
0answers
10 views

SQL server is replicating to wrong subscriber

I have a publication which is intended to push data to a subscriber over the internet from a remote server to our onsite local subscriber but it ends up on a wrong subscriber.Here is the scenario: ...
1
vote
0answers
21 views

Unreliable internal DNS record lookup with Windows Server 2012 R2

I am working on an Active Directory domain with a single DC running Windows Server 2012 R2. The DC is set up as a DNS server (amongst other roles), and forwards to our ISP's name servers. The gateway ...
-7
votes
1answer
25 views

How to use dig to send DNS queries to servers of interest directly? (not through my local DNS resolver) [on hold]

How can I use dig to send a dns query to servers directly? (not through local DNS resolver).
0
votes
1answer
24 views

Performing DNS queries starting with one of the root servers using dig command [on hold]

I am having trouble understanding the question for my network assignment. The question states: Discover the sequence of DNS servers your local DNS server with empty cache goes through when it ...
16
votes
6answers
4k views

Why would a university block incoming UDP traffic with destination port 53?

From my understanding DNS uses UDP and port 53. What undesirable things could happen if incoming UDP packets to port number 53 weren't blocked? UPDATE: Packets originate or are destined to the ...
0
votes
0answers
28 views

Why do I get a list of root name servers when doing an nslookup to one nameserver and not another

I have two bind9 servers, ns1 and ns2 I have a test domain called test.test whos apex is 1.3.3.7 When I nslookup ns1 (master) I get: nslookup test.test ns1.domain.com (root) nameserver = ...
0
votes
4answers
55 views

Internal DNS for internet access

I have configured a internal DNS for my office network using BIND on CentOS6 ... The problem I am having that when I use that DNS server as a primary DNS my entire network loses internet connectivity ...
-1
votes
0answers
27 views

Webserver & Mailserver as DNS master-slave [on hold]

I have two servers, a webserver and mailserver. Each is running CentOS webpanel and has dns zone/records generated when I add domains. I am looking to merge all dns records and share them across both ...
-2
votes
0answers
27 views

Add New DC on Different domain [on hold]

We have acquired an organisation with Vpn tunnel we are able to access each others network in a few days we are going to establish trust relationship But before that we are going to install a ...
0
votes
1answer
28 views

IIS host header name resolution across my network

I have a Windows Server 2012 R2 machine, named [mine-1234]. I have IIS 8.5 installed and a hole in my firewall for ports 80 and 443. I have created 2 test sites one with a default binding to :80 ...
0
votes
0answers
9 views

Five Questions about Specific Examples of Sender Policy Frameworks (SPF) [duplicate]

I have spent some time learning about SPF and have five questions based on specific SPF policies. I obtained the SPF data via http://www.kitterman.com/spf/validate.html In advance, many thanks for ...
0
votes
1answer
28 views

Windows server 2003 DNS Issue. I cannot open a specific external website from internal Domain

Our public website was hacked and Google blacklisted it. We have fixed and it's visible for the public. This morning I wanted to see the site from our internal domain and I couldn't open it. Chrome ...
-1
votes
0answers
12 views

Domain points to wrong account [closed]

I have some trouble with my server. first, i had a main domain mydomain.com and a second mydomain.net which was parked on mydomain.com. Now i try to have a own account for mydomain.net but it ...
0
votes
0answers
35 views

Cant sent mail from own server to google

I'm running a mail server and I'm having problem with sending mails to google. Mails to other providers work fine. I guess its maybe related to my DNS settings, as I've read that google is quite ...
1
vote
3answers
67 views

Can I Run My Web Service and DNS Service on the Same Server?

I am quite new about Linux. I wonder if I could run DNS and Web Server on the same server? The reason is I have a server which they want me to set it up as a DNS & RevDNS server with the ...
0
votes
1answer
28 views

Prevent Alias From Converting Domain Name in Browser Address Field

I'm using Amazon Web Services. I've set up my domain name in Route 53, set up static website hosting in S3, and I've successfully mapped the domain name to the S3 bucket using a DNS ALIAS record set. ...
0
votes
1answer
24 views

How do I host a registered domain with bind9?

I'm already hosting my own web server, FTP, etc. and I want to be able to link my domain name myself directly instead of configuring all subdomains and redirections on the registrar's DNS. Is it ...
-2
votes
0answers
10 views

Setting up own domain (with Django and Apache2)

I am running a website on a VPS using apache2 and Django on Debian. I felt as if it would be fun to give it its own domain instead of just using the IP, which works fine. After purchasing one, I ...
-1
votes
0answers
6 views

How to serve content from another domain on a local sub folder [on hold]

I have a nodejs express website hosted on heroku. I want to have a sub folder such as example.com/blog mapped to blog.sample.com. I don't want to do a URL forward. I want the url to stay ...
0
votes
0answers
16 views

Active Directory DDNS update with a DNS Hidden Master

Active Directory queries DNS server for a SOA(master DNS) record before sending out Dynamic DNS updates to the master DNS. Would AD still work if we set up a hidden master for DNS ? Usually Hidden ...
2
votes
1answer
29 views

Why do authoritative and cached names servers return different records for ANY type?

Why do the DNS records authoritative name servers frequently give different results than cached name servers if "ANY" records are requested? The authoritative name servers seem to consistently ...
-3
votes
0answers
12 views

I have server 2008 r2 & suddenly gpo starting giving error to give access in all accounts & repeatedly disables the Administrator account also

I have server 2008 r2 & suddenly gpo starting giving error to give access in all accounts & repeatedly disables the Administrator account also, any suggestions ? Thanks in advance...
-1
votes
0answers
17 views

Server request timeout? [closed]

I just setup zPanel on my server (an install of Apache, PHP, MySQL, etc). I set up a domain to point to the server IP and gave that to the installer. Though, now when I try to access or even ping the ...
0
votes
1answer
64 views

What happens when two DNS zones intersect on the same server?

I have a DNS zone of example.com with a record of type A defined for foo.example.com. On that same server, I have another zone named foo.example.com with and no A record defined at the top of the ...
1
vote
0answers
27 views

Cannot change Nameservers to cloudflare

I have a domain but I can't change its nameservers to point Cloudflare's. I've been told that the NIC is rejecting them (it's a ccTLD), literally "your nameservers are not authoritative for that ...
-2
votes
0answers
29 views

SRV record with cname [on hold]

I bought an hosted service which, mainly for DDoS mitigation reasons, often rotates its IPs. So myservice.remoteserver.xxx:666 sometimes goes either to 111.111.111.111:666 or 222.222.222.222:666 I ...
1
vote
2answers
30 views

How to Point DNS to Machine Behind Router

I purchased a domain on namecheap (lets just use www.example.com). I have a CentOS virtual machine with a bridged adapter on my LAN. I'd my domain to resolve to that CentOS machine, but I don't know ...
1
vote
0answers
21 views

In a BIND.. Weird DNS issue

I have now somehow replicated a weird issue with one of my DNS zones on two different servers and with two different versions of ISC BIND. I have a sub-domain delegated to my server. The first time ...
1
vote
2answers
41 views

Powershell Passing Funtion Varible for System.Net.DNS

Recently I have been working on trying to parse thru a series of servers for DNS information. I can't seem to correctly pass the variable to the function. Calling the function by itself and passing ...
0
votes
0answers
6 views

How to remove my former sites off search engines? [migrated]

I have this little problem. A few years ago, I had couple of sites, then I closed them. But back then the search engines added those sites of mine into their databases. It's Google and Chinese Baidu. ...
0
votes
0answers
15 views

Point subdomain to localhost server? Nameservers pointed elsewhere

My client has their nameservers pointed to another server (Server A) for their current website. However, in the zone file all the IP's point to the local host server (Server B). While Server A ...
0
votes
1answer
22 views

Azure VM Unwanted User-Agent Filtering/Blocking

I recently migrated our WP site to a Debian 8 VM running on Azure. Since then, we are unable to process credit card payments through the RedSys payment gateway. It seems that upon successful payment, ...
-1
votes
0answers
46 views

For Windows Server 2012 R2 do you need to install DNS or have a DNSS to use WDS?

I was just wondering if you actually need a DNS to use WDS and if so why? I am kind of new to Windows Server and any explanation would be greatly appreciated Thank you
-3
votes
0answers
28 views

Emails getting rejected SPF [closed]

I am having issues receiving confirmation emails from a website that I use which is built in laravel. When I checked my mail logs it appears to be getting rejected due to "SPF IP is not allowed to ...
3
votes
0answers
60 views

How does Windows decides which DNS Server to use when resolving names and connected to a VPN

When connected to a VPN network how does the windows DNS client choose a prefered DNS server, between the DNS servers configured for the local connection and the server statically defined for the VPN? ...
-1
votes
1answer
68 views

Windows Server 2012 R2 DNS internal and external records issue

I am running into an issue with with DNS on Windows Server 2012 R2 acting as Active Directory domain controller AND DNS server I want to be able to setup certain records that will resolve internally ...
-1
votes
2answers
52 views

Namecheap DNS Cname issue

I am using Namecheap default DNS, where I bought the dns name. However, I am having a issue... Typically, for AWS and Rackspace I would have: A Record: foo.com 124.22.22.1 Cname: www.example.com ...
0
votes
2answers
30 views

FQDN, DNS, Hosts, postfix

Let's say I bought this domain: example.com Name servers under DNS manager all points to example.com That subdomain(example.com) of nameservers points to an IP. Also, note that hostname unique is ...
0
votes
0answers
38 views

How do I setup a “subdomain empty” DNS CNAME?

I am hosting a webserver with about 200 domains. The DNS records of those domains are a simple CNAME record of the form: *.domain1.com. CNAME myhostingserver.mydomain.com. *.domain2.com. CNAME ...
1
vote
1answer
43 views

Configure bind9 to forward queries as-is and to reply answers as-is, or in search of perferct forwarder

I use bind9 server (A.A.A.A) as forwarder only: queries are forwarded to other DNS server (B.B.B.B). I manually ask B.B.B.B to resolve domain and got correct result: $ dig a downloadcenter.intel.com ...