Questions tagged [subdomain]
In the Domain Name System (DNS) hierarchy, a subdomain is a domain that is part of a larger domain.[1]
1,428
questions
145
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Wildcard SSL certificate for second-level subdomain
I'd like to know if any certificates support a double wildcard like *.*.example.com? I've just been on the phone with my current SSL provider (register.com) and the girl there said they don't offer ...
134
votes
4
answers
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What type of DNS record is needed to make a subdomain?
I'm making a website, and I need a sub-domain.
I need to add the new part to my website, but I don't know which type of DNS record to add in the DNS console to point to this new site.
Is it A or ...
94
votes
4
answers
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Does each subdomain need its own SSL certificate?
I am creating a websocket server which will live on ws.mysite.example. I want the web socket server to be SSL encrypted as well as domain.example to be SSL encrypted. Do I need to purchase a new ...
85
votes
5
answers
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How do I redirect subdomains to a different port on the same server?
I have some subdomains I want to redirect to specific ports on the same server.
Say I have
dev.mydomain.com
I want dev.mydomain.com to transparently redirect to mydomain.com:8080 and I want to ...
49
votes
3
answers
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Is there a maximum subdomain depth?
Is there a maximum allowed subdomain depth supported by webservers or browsers?
For example, could a domain like foo.bar.baz.monkey.pirate.google.com cause problems?
48
votes
4
answers
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subdomain of a subdomain?
I am trying to create url like sub2.sub1.subdomain.domain.com. I am planning to use this to display different content.
my questions are...
1) Is it possible to create such multi level sub domains? - ...
38
votes
3
answers
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Wildcard vhosts on Nginx
I've just installed Nginx on my server and am extremely happy with the results, however I still cannot figure out how to insert wildcard virtual hosts.
This is the [directory] structure I'd like:
-- ...
37
votes
2
answers
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How to reverse proxy to different places depending on subdomain in Nginx?
I have multiple subdomains, all pointing to one machine, and one IP address. On this machine, I want to have nginx acting as a reverse proxy, and depending on which subdomain was used to access the ...
34
votes
3
answers
7k
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How did someone point a sub-domain of our domain to someone else's IP address?
We own a primary domain:
businessdts.com
I didn't know if our admins had created a sub-domain I had requested, "BDASERVER.businessdts.com.", so I just tried to connect to it with a browser and got a ...
34
votes
1
answer
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If I own a domain do I own all of its sub domains?
If I own a domain do I own all of its sub domains?
For example if I purchase example.com, do I automatically own mail.example.com, blog.example.com, etc?
If I do not own the sub domains, can anyone ...
33
votes
7
answers
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How do you have one IP address and many websites?
How can I have it where I have one IP address that sits on the Internet but many web names? For example, when a hosting company has a shared IP but I get unlimited domain names (along with everyone ...
33
votes
10
answers
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Is a wildcard DNS record bad practice?
I asked my hoster to add three subdomains all pointing to the IP of the A record. It seems he simply added a wildcard DNS record because any random subdomain resolves to my IP now. This is OK for me ...
30
votes
4
answers
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Do intermediate subdomains need to exist?
If I have the hosts example.com and leaf.intermediate.example.com in DNS records for example.com, but do not have any records for intermediate.example.com itself, does that cause a problem in some ...
27
votes
1
answer
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Amount of allowed subdomains in domain and email
How many subdomains can you have on your domain? And with that, I mean levels of subdomains.
For example, you have the domain example.com, I know you can have test.example.com, but how many levels ...
26
votes
3
answers
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Can subdomain.example.com set a cookie that can be read by example.com?
I simply cannot believe this is quite so hard to determine.
Even having read the RFCs, it's not clear to me if a server at subdomain.example.com can set a cookie that can be read by example.com.
...
23
votes
3
answers
8k
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Are DNS records private information?
Assuming you wanted to create a subdomain that points to a private location (perhaps the location of a database, or the IP address of a computer you don't want people to attempt SSH-ing into), so you ...
23
votes
4
answers
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How to create an SSL certificate for more than one subdomain?
I'm running a server "myserver.net", which has the subdomains "a.myserver.net" and "b.myserver.net".
When creating (self-signed) SSL certificates, I have to create one for every subdomain, containing ...
20
votes
2
answers
38k
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How many sub-domains can there be at most?
Is there a limit for number of subdomains like "*.domain.com"?
18
votes
1
answer
50k
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nginx proxy subdomains to other addresses and ports [closed]
I'm newbie with nginx, but I need to create some proxy rules based on the subdomain to redirect to another IP and Port.
This is my case:
My domain.com has IP y.y.y.y and accepts requests on port 80
...
18
votes
2
answers
40k
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Setting up SPF and DKIM records of a subdomain
I need to setup SPK and DKIM record for mail.mydomain.com. I have set the following at namecheap -
For SPF -
Record type :TXT
Hostname : mail.mydomain.com
Value : v=spf1 ip4:x.x.x.x ~all
For ...
17
votes
2
answers
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How can I determine whether xyz.example.com uses a wildcard A record?
If you have many sub-domain names like xxx.example.com, xyz.example.com etc, you can solve these through server-side scripting or other means by using a wildcard A record for *.example.com in your DNS....
15
votes
3
answers
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Is it OK to use local. in an active directory domain name
I have read that it's not OK to use .local in a domain especially with Microsoft Windows servers. I have also read the Windows Active Directory naming best practices article on ServerFault which was ...
15
votes
2
answers
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Should engineering have its own DNS zone, delegate, or subdomain?
We have our organization's primary domain (with AD) example.com. In the past, previous admins have created several other zones - such as dmn.com, lab.example.com, dmn-geo.com etc - as well as ...
14
votes
3
answers
25k
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Wildcard DNS and subdomains
Let's that I've got the domain mydomain.com.
I want that when any visitor goes to
www.mydomain.com
xyz.mydomain.com
abc.mydomain.com
asd.mydomain.com
qwe.mydomain.com
etc...
the visitor will continue ...
14
votes
3
answers
5k
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Can I use the character ñ in a sub-domain?
We are launching our website in Spanish and are probably going to call it
espanol.mydomain.com
Since the real spelling is español, ideally we would allow people to type español.mydomain.com.
Is ...
14
votes
2
answers
23k
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Benefits of using a subdomain for sending email?
Assume I own the domain name, example.org. I am creating a setup where I receive email sent to [email protected] using Google Apps. The MX records for example.org already point to Google's servers and it ...
13
votes
3
answers
23k
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How to access a subdomain of an IP address?
I have a website that is accessible only by IP address. How can I access a subdomain of that website?
12
votes
2
answers
2k
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SSH home directory per subdomain
I'm wondering if it is possible to set different home directories for the same ssh user for each subdomain.
So let's say you login with ssh myuse[email protected] your home directory will be:
/www/...
11
votes
1
answer
8k
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exclude a subdomain from a dns wildcard record
I have a domain name set with wildcard for all subdomain (*.mydomain.com), I need of exclude a specific subdomain from this condition, I use a record dns for set wildcard and if I set a new record A ...
11
votes
3
answers
11k
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Second Level Subdomain DNS Wildcard
I need help setting up a second level subdomain. I have set up wildcard subdomains in the past with success, but I am having trouble with the DNS entry for this one. I need to do something like
*....
10
votes
1
answer
7k
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Can DNS host records be setup to create wildcard sub-subdomains
Is it possible to create a wildcard host record for a sub-subdomain ie *.foo.example.com?
10
votes
4
answers
54k
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How to create a Subdomain in IIS7?
In IIS7 I have a site: http://www.mydomain.com/mysite
How can I get the same site to appear as: http://mysite.mydomain.com ?
I already have the DNS set up and can ping it, I just do not know how to ...
10
votes
2
answers
10k
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Why do we still use "www" in URLs? [duplicate]
Possible Duplicate:
What’s the point in having “www” in a URL?
Why do we prepend our URLs with "www", isn't http:// enough? Its clearly not necessarily because it is omissible.
However there is ...
10
votes
1
answer
3k
views
gitlab slow when running on nginx subdomain
I'm trying to run gitlab on a subdomain.
I installed the latest gitlab version using the omnibus installer on my vserver (running Ubuntu 14.04.1) and disabled the bundled nginx and configured the ...
9
votes
3
answers
10k
views
numeric subdomain
I have a question that I feel silly asking, but I can seem to find a definitive answer anywhere:
Can I set up a subdomain that is purely numeric such as 2009.my.domain.com? Are there any ...
9
votes
4
answers
49k
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Redirect subdomain.example.org to somethingelse.com hidden to the user?
I'm not knowledgeable at all about C-NAMES, A-RECORDS, name servers and the like, so just bear with me on this one:
I want to redirect subdomain.example.org to another domain somethingelse.com. I do ...
9
votes
1
answer
27k
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Haproxy setup with subdomain setup
Hoping someone can help confirm if this suppose to work? I'm trying to route 3 subdomain traffic to the same haproxy host;
Here is my setup
haproxy with one interface ip 10.10.10.100 and dns name ...
9
votes
2
answers
65k
views
Godaddy : linking domain name to IP address
I just bought a domain name for my web site from GoDaddy.
the content of the site is available at a public IP address.
how do I link my domain name to the IP address ?
how do I make it so that when ...
9
votes
2
answers
65k
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Adding a Subdomain DNS Record in Windows Server
I am attempting to add a couple sub domains to a production server. Lets say the server is 2K8 and the domain is www.mysite.com. I would like to add SD1.mysite.com and SD2.mysite.com. Since this is a ...
8
votes
2
answers
2k
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DNS: wildcard domains
If I have a wildcard domain, is it possible to list specific subdomains that override the wildcard one?
For example:
*.domain.com. 3600 IN A 1.2.3.4
foo.domain.com. 3600 IN A 9.9.9.9
8
votes
3
answers
5k
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Do I have to buy a second wildcard certificate for a subdomain?
We already have a wildcard certificate for *.mycompany.com. Our network has hosts that are only reachable internally. All of them belong to the internal.mycompany.com subdomain. There is a private ...
8
votes
1
answer
245
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Create VHost & Forward subdomain to it
Gurus of So
I have a simple .htaccess file where I only redirect non www to www for my webapp. Now what I want to do is
Create a new vhost like http://subdomain.mydomain.tld
Create a redirect for ...
8
votes
3
answers
7k
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Best practice for placing DNS records and subdomains
Say I have mydomain.com:
Is it better to use option A:
[A] mydomain.com 123.45.67.89
[A] www.mydomain.com 123.45.67.89
or option B:
[A] mydomain.com 123.45.67.89
[CNAME] www....
8
votes
3
answers
12k
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AWS Solution for wildcard subdomains (with SSL)
Is there a solution within AWS for implementing a wildcard subdomain (with Route 53). where any subdomain ex1.example.com, ex2.example.com or whatever.example.com can all point to the same server? ...
8
votes
1
answer
17k
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DKIM and SPF for a subdomain
I manage a VPS on Linode accessed through subdomain.example.com and I need to send email from this subdomain. I can't set any TXT records in Linode DNS manager because the name servers for example.com ...
8
votes
1
answer
16k
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Wildcard for A and MX records possible?
I'm building an app where each customer can have their own subdomain.
For this example, he setup his subdomain to be: whisky
I created a wildcard subdomain in my DNS:
*.myapp.example A 192.0.2.123
...
8
votes
2
answers
6k
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How to configure IIS wildcards for account subdomains (like Basecamp)?
In effect I'm working on a SaaS application where I want to give subscribers their own subdomain to access their information (in code I will be pulling the first part of the subdomain for use as their ...
7
votes
2
answers
2k
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2 servers, 1 public IP - Redirect subdomain internally
I have 2 SSL web servers and 1 public IP address.
I own a TLD (example.com), what I'd like to do is redirect server1.example.com to internal server A and server2.example.com to internal server B.
...
7
votes
4
answers
21k
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How to make a directory in site root a subdomain?
I have a Ubuntu LAMP site hosted at vps.net.
I have a directory called john that is accessible via mysite.com/john I would like it instead to be accessed via john.mysite.com
My site root is /var/www ...
7
votes
2
answers
2k
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Validity of a FQDN with a hostname consisting entirely of numbers
Is a FQDN valid if the hostname component is entirely numeric? It's not something I've come across before and I'm not sure if something like the following is legal:
001.example.com.
I know it's an ...