DNS is the Domain Name System, a hierarchical, distributed database where the keys are domain names. The primary references are: RFC 1034 - Domain Names - Concepts and Facilities RFC 1035 - Domain Names - Implementation and Specification The most common record types found in the DNS are: "A" ...
0
votes
0answers
7 views
NS server selection (mixed glue/non-glue NS from the parent zone)
Apart from the source code, there seems to be virtually no public information on the web of how BIND and djbdns, amongst other recursive resolvers, select which NS servers they will query as part of ...
-5
votes
0answers
35 views
Set up subdomains on a VPS [closed]
I recently took ownership of a VPS.
I am wanting to make up subdomains for it (i.e pizza.example.com, points to example.com/pizza)
How would I go about doing this?
I am using point to manage my ...
2
votes
1answer
47 views
EC2 IP Address : How can a web server identify db server ip address at startup?
I have a simple 2-tier arrangement - one web server (Websphere hosted on windows), and one oracle db server. The web server needs to connect the oracle database server.
I am trying to write a script ...
0
votes
1answer
29 views
Server Response Time and Domain Name Resolution
I have a server running windows 2003 and apache. I have couple of sites hosted on this box. Now this server is placed at my home and the ISP has allocated me a fixed IP.
When i check for my ...
0
votes
3answers
42 views
What is the fastest way to update 100+ Zone Records in BIND?
I'm currently using Cpanel to manage my BIND server and it's painful to update 100+ records whenever server the records pointing to is down.
Is there a faster way to update BIND records? The cpanel ...
1
vote
1answer
46 views
Wide Area Bonjour using DNS SRV Records
Running Apple's Lion Server (10.7.3). I am trying to get VPN clients (clients on another subnet) to see the server's Apple File share. I know that Bonjour doesn't route over a VPN or subnet, so I am ...
1
vote
1answer
30 views
Connecting to SQL Server on EC2 | Elastic IP vs Elastic IP Public DNS
Based on this excellent article by @esh on using external Elastic IP DNS names internally within EC2, I am in the process of changing my connection strings for my web server to connect to a DB server ...
3
votes
2answers
79 views
PowerDNS and a strange NXDomain
Allow me first to set the scene.
We used to use Bind9, but ditched it in favour of PowerDNS, because, frankly, Bind sucks.
We have a "primary" zone in our DNS master. london.wibblesplat.com
There's ...
0
votes
1answer
35 views
Why is my DNS server returning NXDOMAIN when I can see the record exists? (Stub zone)
I have two stub zones in my DNS database (both AD-Integrated). Let's call them foo.org and bar.org. All DNS servers on my side are Server 2003 R2.
The foo.org zone file contains the following ...
0
votes
1answer
25 views
grouping two sites under domain and sub domain
I have 2 websites a main website hosted at fasthosts and an e-commerce website hosted at Vidahost.
I want to combine both websites under the same domain set.
Main site would be www.mydomain.com
...
0
votes
2answers
33 views
Mixing SPF records
I have the usual Google Apps SPF record in my DNS:
v=spf1 include:_spf.google.com ~all
and now, since we are using ZenDesk, I should also add:
v=spf1 include:support.zendesk.com ~all
Should they ...
0
votes
0answers
16 views
DNS Server Routing
I have a local DNS server setup to resolve things like myserver.mydomain.com myserver2.mydomain.com to specific internal servers. Now if i map those subdomains externally to the external ip of my ...
2
votes
2answers
52 views
Possible to block site using my IP as their nameserver address?
Last week while going through my log files I noticed that a site started to appear sending multiple A and AAAA requests for their ns1/ns2, www, and two subdomains to my DNS server every few seconds, ...
0
votes
0answers
17 views
SBS 2011 Exchange Mail Delivery delay
I have a new Microsoft SBS Server - This is set up for a small engineering firm. Occasionally, almost daily, I have trouble delivering mail to a couple of domains. I googled the message "Delivery is ...
0
votes
1answer
39 views
Google MX records won't update
I've read through other questions like this but on and off for 3 weeks now I keep trying to update my mx records in my Google apps account but it always stops at 48 hours and says to try again. I'm ...
0
votes
1answer
21 views
NginX domain resolver
Having nginx installed and Apache on port 8080.
The trouble is: I'm building site for production domain (let's say mysite.com) and have everything configured for that domain. I change my Windows hosts ...
5
votes
4answers
96 views
Weighted round robins via TTL - possible?
I currently use DNS round robin for load balancing, which works great.
The records look like this (I have a ttl of 120 seconds)
;; ANSWER SECTION:
orion.2x.to. 116 IN A 80.237.201.41
...
0
votes
2answers
32 views
DNS Zone - redirect mail to another ip
I'm have my DNS server set like this:
mail A xxx.xxx.xxx.xxx
mail MX 10
because I want to redirect all mail traffic on server xxx.xxx.xxx.xxx but it does not forward my emails to this ...
0
votes
2answers
17 views
Confusion about VHost and DNS Entry regarding Subdomain Configuration (Apache)
On my Vserver Id like to configure a subdomain. So I have the following entries in my apache vhost config. I want to have my site app1.example.com to run as own site, so that pages and files have the ...
0
votes
2answers
48 views
Nameserver not visible from the internet
I'm setting up a dns server using Bind9. It seems to be functioning properly when i use nslookup locally, but I am unable to connect to it from the outside world. I've confirmed that iptables is not ...
0
votes
0answers
29 views
Accessing an Exchange server from two domains in the same forest
I made two domains, dc2.com and dc2.com, in same forest. I installed a DNS server in every domain.
I want to install an Exchange server in one domain then access this Exchange server from two ...
0
votes
0answers
15 views
How do I automatically add Cassandra nodes to Windows DNS?
I'm working on building a new Cassandra cluster and I'd like to create a DNS record that will hold the IP addresses of all of the nodes. I build all of my servers in the cloud and they automatically ...
2
votes
1answer
24 views
How do I setup a Symlink/Clone DNS zone?
Is there any way I can setup BIND with DNS-DLZ to answer xxx.org requests as it were xxx.com zone?
I want to avoid maintaining multiple zones with the exact same data.
0
votes
1answer
29 views
Root domain redirect, otherwise A record redirect
I would like to redirect every incoming request via A record to another server (url-shortening service) unless the root is requested.... Is this possible? If so, how? If not, why not?
A simple ...
0
votes
2answers
26 views
set up linode without a domain name
I read somewhere that a linode can be set up without a domain pointing to it, but I was unsure of how to tackle that. I noticed in the getting started guide it has an entry about updating your ...
1
vote
3answers
68 views
Does Windows DNS automatically register all domain members?
I wonder if a Windows Domain DNS Server should register any Domain Member in general? I notice that this does not happen if the DHCP is an external system and not aware of the internal DNS Server.
...
-3
votes
0answers
18 views
after terminate account , show white page in domain [closed]
I've terminated an account in cpanel
but It shows me a white page
http://www.archi-city.com/
How can I take from this cache
I would like to add a new account for this domain, but not
-1
votes
2answers
70 views
How are A record for webhost website is found from nameserver?
I add SOA and nameservr to my zone file. When I ran DNS lookup I found unknown A record (31.170.162.67) and MX information. See here: ...
0
votes
2answers
74 views
Learning basic deicated server administration [closed]
I have no idea if this is the right place to ask, but I'm a bit desperate.
I have been working for a few days now to set up a EC2 instance with cPanel. I realized fast that this was not easy, ...
1
vote
1answer
34 views
Setting up wildcard DNS for lots of domains
I want a nameserver that points any names at the same IP. This way I can rapidly change a bunch of domains name servers to ns1.ABC.com and ns2.ABC.com and have all those domains be pointed to the same ...
1
vote
2answers
88 views
Why Can't I Reach My Amazon EC2 Instance Via It's “Elastic IP Address?”
The server works fine via the Amazon assigned DNS entry, but I cannot reach it (using a browser) via the Elastic IP address Amazon assigned the box. Ping does not work either. I am trying to confirm ...
1
vote
2answers
41 views
If I see domains MX to google, which address I will have?
If I set my domain's MX records to google as it said here http://support.google.com/a/bin/answer.py?hl=en&answer=33915 then what address I will have if my domain is mydomain.com and my email on ...
1
vote
3answers
36 views
creating subdomain entry(ies) — should I add a CNAME record pointing to @ or create a new A record?
Is it better to have a fewer A records and dozens of CNAME records or vice verca?
One (or few) A records per unique IP and many CNAME records per A record:
@ 3600 IN A 123.123.123.123
a ...
2
votes
2answers
55 views
Adding search to resolv.conf prevents FQDN searches
I added the following line to my resolv.conf to allow for shorthand querying servers on my local domain.
search local.
If I have a server named myserver.local I can ping the server using "ping ...
0
votes
1answer
46 views
Apache 2 Listening on Port 9999, but Can't Reach Through DNS Host
I have an Apache server listening on port 9999. I can verify this by running an SSH tunnel (with port forward of L9595 192.168.5.227:9999) through PuTTY such that from a remote IP I can access this ...
1
vote
1answer
19 views
CMS / Server setup to easily host multiple sites
I'm looking for a simple CMS to use for a bunch of micro sites. These are generally sites that are only ever a few pages and are often for friends or simple microsites for work.
What I really want is ...
1
vote
1answer
54 views
In DNS settings, why do you specify both nameservers and A-records?
I just setup a site where my friend registered the domain name and I hosted it. I figured that all I needed to give him was the nameservers to use, however, even after entering them, the site still ...
1
vote
0answers
14 views
Get monthly bandwidth usage by wildcard subdomains in Cpanel?
I have set up wildcard subdomains for example.com in cpanel as *.example.com.
With the WordPress network installed on example.com, there are lots of unprofiled wildcard subdomains such as ...
1
vote
2answers
59 views
VPN Connection causes DNS to use wrong DNS server
I have a Windows 7 PC on our company network (which is a member of our Active Directory). Everything works fine until I open a VPN connection to a customer's site.
When I do connect, I lose network ...
1
vote
1answer
30 views
Configuring a third level domain
I have an Apache instance serving a site on port 8000 of my server (whose ip is 164.177.156.36)
Listen 8000
<VirtualHost *:8000>
ServerName lessico.pistacchioso.com
DocumentRoot ...
0
votes
2answers
50 views
How to delegate NS for the apex?
We have a registered domain (example2.com) that has the company's name servers registered against it (ns1.example.com, ns2.example.com) at the registrar.
We would like to "delegate" the DNS ...
2
votes
3answers
107 views
Email Server IP Address is Blacklisted
we have a Zimbra Mail server that was being used for 2 months now.
the last week we faced a problem that the Public IP that was being used for our mail server started to be blacklisted and we couldn't ...
26
votes
4answers
1k views
Why does DNS work the way it does?
If my understanding of the DNS system is correct, the .com registry holds a table that maps domains (www.example.com) to DNS servers.
What is the advantage? Why not map directly to an IP address?
If ...
0
votes
1answer
32 views
SSH public key authentication without DNS entry
Server A thinks it is called foo.bar.com, but actually there's a problem (not in my control) with the DNS registration, so I connect to it at 192.168.1.1. I want to be able to scp from there to server ...
1
vote
1answer
34 views
Netbios Names with 2K8
I'm setting up a small network that contains all 2008 servers. No domain controllers, and no DNS (as of yet). Most of the servers will be IIS servers and part of a web farm/pool. Now I have configured ...
0
votes
0answers
30 views
Can no longer access hidden shares on Domain File Server
Our workstations (Windows 7 machines) connect to users' home folders on the domain's File Server (Windows Server 2008 standard), using a UNC path like \\server\users$\...
This has worked fine for a ...
3
votes
1answer
51 views
How is DNS lookup order determined?
For example: we have registered domain name domain.com and added
name server records at the registrars server:
ns1.domain.com.
ns2.domain.com.
ns3.domain.com.
Than we look up for domain.com. We get ...
0
votes
1answer
43 views
want to Request our ISp to do rdns/ ptr modify for my Staic IP ot point to my Domain?
we setup a mail server in our local office using Mdaemon Mail Server . We have a Staic ip 123.xxx.123.xxx ( as an example ) and all necessary ports (80 , 25 , 110 ) are made open .
We have a ...
0
votes
1answer
55 views
Local DNS not resolving on network machines
I installed a new modem, for which I had to enable DHCP, and ever since our network has not been able to resolve domain names in our local development environment.
If I am to log on to the server ...
0
votes
1answer
29 views
Apache2 on Ubuntu server - Windows Domain
Hi this is probably a stupid question....but here it goes
I have an Ubuntu server (hostname: intranet) with apache2 running with virtual hosts. Lets call them "website1.intranet" and ...
