how to setup a wildcard subdomain on 123-reg.co.uk

Question

I have a domain on 123-reg.co.uk and I want to setup a wildcard subdomain.

I do currently have a * A record which points to one IP address, but I also want a subdomain called web which can also use wildcard subdomains.

i.e.

• web.mydomain.com => 1.1.1.1
• example-1.web.mydomain.com => 1.1.1.1
• example-2.web.mydomain.com => 1.1.1.1

While any other subdomains of mydomain.com should continue to point to a different IP address 2.2.2.2

• othersubdomain.mydomain.com => 2.2.2.2

What do I use for the host name in the record? Do I just add *.web

Answer 1

The solution is to add two A records

in my case

• web to point to 1.1.1.1
• *.web to point to 1.1.1.1

If you only add *.web then web.mydomain.com will not resolve.