Questions tagged [subdomain]

In the Domain Name System (DNS) hierarchy, a subdomain is a domain that is part of a larger domain.[1]

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147 votes
8 answers
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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 ...
user avatar
86 votes
5 answers
189k views

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 ...
user avatar
3 votes
2 answers
2k views

Fix missing ssl-cert for subdomain www. using redirect or similar

We're using setup with an nginx on one machine and (currently) one application server on apache in the back. For multiple domains we got ssl certs, but only for the domain itself. So without ...
j.fiedler's user avatar
14 votes
3 answers
26k views

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 ...
Click Ok's user avatar
  • 956
8 votes
3 answers
6k views

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 ...
Rafael Bugajewski's user avatar
37 votes
2 answers
95k views

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 ...
markasoftware's user avatar
34 votes
10 answers
69k views

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 ...
problemofficer - n.f. Monica's user avatar
33 votes
7 answers
137k views

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 ...
johnny's user avatar
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2 votes
3 answers
9k views

Apache .htaccess trick to authenticate only once for all subdomains?

I'm using something like this in .htaccess file to restrict access to the website: AuthUserFile /some/directory/.passwd AuthGroupFile /dev/null AuthName EnterPassword AuthType Basic require valid-...
michuk's user avatar
  • 133
1 vote
0 answers
1k views

Apache .htaccess trick to authenticate only once for all subdomains? [duplicate]

Possible Duplicate: Apache .htaccess trick to authenticate only once for all subdomains? I'm using something like this in .htaccess file to restrict access to the website: AuthUserFile /some/...
michuk's user avatar
  • 133
39 votes
3 answers
88k views

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: -- ...
rorygilchrist's user avatar
30 votes
4 answers
4k views

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 ...
Lassi's user avatar
  • 515
24 votes
3 answers
8k views

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 ...
IQAndreas's user avatar
  • 1,580
19 votes
2 answers
41k views

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 ...
Aditya Singh's user avatar
7 votes
1 answer
16k views

Adding a subdomain on Google Domains

I'm trying to create a TXT DNS record with name _acme-challenge.www on Google Domains to allow me to validate my DNS (i.e. via _acme-challenge.www.example.com). I've already validated the domain ...
JohnLBevan's user avatar
  • 1,310
6 votes
3 answers
19k views

How to point sub-domains to different local IP

My question is the same with How to point a subdomain to local server with dynamic IP. The difference is that I do have a static IP from my ISP, I think i do not need to use DynDNS right? so what can ...
thang nhoc's user avatar
6 votes
1 answer
4k views

Redirect all subdomains to subfolders

I'd like to add a rule so that all subdomains get redirected to a subfolder. For example: app1.example.com -> example.com/app1 app2.example.com -> example.com/app2 something.example.com -> ...
alf's user avatar
  • 195
5 votes
1 answer
8k views

Pingdom error: "No delegation could be found at the parent" when analyzing subdomain

I have a subdomain dramarsarin.crimsonandcyan.com which i wanted to point to another server. I added an A record in the zone file for crimsonandcyan.com with the host 'dramarsarin' and pointed it to ...
Kanishk Dudeja's user avatar
4 votes
5 answers
2k views

is wildcard ssl insecure?

Is there anything inherently more insecure about using a wildcard SSL certificate over a regular SSL certificate? We are looking to implement a subdomained web application (a la FreshBooks and ...
iopener's user avatar
  • 187
4 votes
1 answer
2k views

Redirect all subdomains to main domain with HTTPS without a wildcard cert (nginx)

I have a domain name with a main site and a few vhosts. I want all sites (main and vhosts) to only be accessible through HTTPS (using HSTS), and I want non-existing subdomains to be redirected to the ...
Joe La Frite's user avatar
3 votes
2 answers
10k views

Is there a way to forward a port based on subdomain? [duplicate]

Possible Duplicate: How to use DNS to redirect domain to specific port on my server Basically I want to have something like this: name1.mydomain.com:1234 -> my.internal.ip.address:10001 name2....
Davy8's user avatar
  • 143
0 votes
2 answers
767 views

different hosting account, same URL?

Our client has a website at www.myclient.com. They want a new site created at www.myclient.com/newsite and for us to host it. Is it possible to have www.myclient.com hosted on one server/network and ...
DaveO's user avatar
  • 175
96 votes
4 answers
240k views

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 ...
user974407's user avatar
  • 1,111
28 votes
1 answer
11k views

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 ...
Joshua Bakker's user avatar
23 votes
4 answers
52k views

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 ...
polemon's user avatar
  • 595
20 votes
2 answers
39k views

How many sub-domains can there be at most?

Is there a limit for number of subdomains like "*.domain.com"?
user avatar
18 votes
1 answer
52k views

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 ...
Beto Neto's user avatar
  • 605
14 votes
2 answers
2k views

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 ...
Thomas's user avatar
  • 880
14 votes
2 answers
23k views

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 ...
Michael Brook's user avatar
10 votes
4 answers
50k views

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 ...
Dennis G's user avatar
  • 628
8 votes
1 answer
17k views

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 ...
hiirulainen's user avatar
8 votes
1 answer
16k views

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 ...
wyred's user avatar
  • 217
7 votes
2 answers
2k views

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 ...
Matthew Bradley's user avatar
6 votes
4 answers
14k views

DNS Subdomain delegation issue

(Updated the post with more detailed example) I have my domain: example.com setup at DNS provider 1. Provider 1 has nameservers: ns1.dns1.com ns2.dns1.com I want to delegate authority for subdomain....
Catalin's user avatar
  • 63
5 votes
3 answers
5k views

Wildcard DNS, VirtualHosts on apache2, 404 for unused subdomains

On an Apache2 server linked to by a DNS that includes a wildcard entry, e.g. *.example.com, subdomains that are not defined as ServerNames in any VirtualHosts point to the first defined VirtualHost, ...
Niel Thiart's user avatar
5 votes
3 answers
6k views

nginx: redirect subfolder to subdomain

I'm trying to redirect a subfolder to a subdomain in nginx. I want http://example.com/~meow/ to be redirected to http://meow.example.com/. I tried the following: location ~ ^/\~meow/(.*)$ { ...
mrm8's user avatar
  • 65
4 votes
4 answers
1k views

Is a wildcard SSL required for a single subdomain?

A typical SSL cert is based on a common name for the domain (domain.com) sometimes (www.domain.com) as well. I understand what a wildcard cert is used for (*.domain.com) and it would/should validate ...
PenguinCoder's user avatar
3 votes
1 answer
1k views

Pointing main domain to another server while keeping subdomains in same place

I have a domain I want to point to my github pages site. However, I want to keep the subdomain old.mysite.com pointing at the current server (as this is an archive of my old php blog, which github ...
wheresrhys's user avatar
3 votes
1 answer
11k views

How to setup a subdomain on nginx? [closed]

I have setup GitLab on my unbuntu ubuntu 12.04 lts server in following path /home/git/gitlab/. I am using nginx server. This is my gitlab status root@c27-76:/etc# sudo service gitlab status The ...
Krishna Karki's user avatar
3 votes
2 answers
4k views

Apache2 dynamic documentroot depending on URL

I have looked at setting up an Apache server. I want to run our site example.com on the server, as well as testing test.example.com. This I can setup by having two almost identical VirtualHost in ...
Mads Ohm Larsen's user avatar
3 votes
3 answers
4k views

Config Subdomain to point to heroku app

I have to host a subdomain of my domain to heroku app. For example abc.com points to a Hostgator account. I want to configure app.abc.com to heroku app. The domain is registered with godaddy. Can ...
user avatar
3 votes
1 answer
1k views

Apache mod-rewrite rule to change subdomain.domain.tld to domain.tld/subdomain

What would the rewrite rule be to change subdomain.domain.tld to domain.tld/subdomain? Or should I look at a VirtualServer directive to take subdomain.domain.tld and serve it from a DocRoot that ...
warren's user avatar
  • 18.7k
3 votes
1 answer
2k views

Is it possible to configure Nginx to allow for new domains to be added without me having to add a VirtualHost for each?

I have a SaaS application wherein users can enter their domain names. The application uses the hostname of incoming requests to determine the account based on the domain they entered for their account,...
orokusaki's user avatar
  • 2,863
3 votes
1 answer
7k views

How to point a subdomain to local server with dynamic IP

I see there are many related questions to this one, however the answers given seem to be a little vague for a novice like me. I've got a dedicated LAMP stack running Fedora 16 locally on my home ...
biggles's user avatar
  • 243
2 votes
2 answers
2k views

How to manage multiple sites on the same server with Nginx?

I have 2 sites on the same Nginx server. My first site https://www.example.com all the following addresses must redirect to this domain: xx.xx.xx.xxx http://example.com http://www.example.com ...
ML19's user avatar
  • 91
2 votes
1 answer
1k views

DNS configuration : sub-domains pointing to different IP

I would like to know if this type of domain and subdomain organisation for our school is feasable, and if so, how. We have 2 different servers, say SERVER1 and SERVER2 SERVER1 is for school-critical ...
pixeline's user avatar
  • 658
2 votes
4 answers
5k views

DNS not resolving for *some* people/locations

We created a new sub-domain (via A record) but it is not resolving for everyone. It's been working for me and some others for about a week, but others still cannot access the site. I don't think ...
Justin Johnson's user avatar
2 votes
3 answers
7k views

How to test new nameserver before to make it live [duplicate]

Possible Duplicate: Testing nameserver configuration using it I'm thinking of changing from my hosting provider nameservers to Route53 (Amazon's distributed nameserver) for several reasons. I'm ...
CodeShining's user avatar
2 votes
1 answer
22k views

Subdomains not working on nginx

I decided to give a try to nginx, however it seems I am stuck at the really beggining. I have a server running Debian and I am trying to configure nginx with 1 domain + 2 subdomains. When I access the ...
ragtime.sp's user avatar
2 votes
2 answers
7k views

Redirecting to other internal servers based on sub domain

Here is my situation home network, windows machines, 1 external facing IP address (that allows port 80) 1 windows home server always on machine, planning on upgrading to WHS 2011 soon. several IP ...
ELG's user avatar
  • 21