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I got a Synology NAS, with different virtual hosts, so i got a DDNS (user.synology.me), let's say the virtual hosts are server1, server2 and server3, so i can access them using server1.user.synology.me, etc.

I pointed my example.com to user.synology.me using a CNAME, then I created a subdomain: server.example.com, using CNAME pointing it to server1.user.synology.me, the problem is, when I go to server.example.com it takes me to user.synology.me, instead of server1.user.synology.me.

What can I do here?

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  • What do you mean by "when I go to server.domain.com" and what do you mean by "it takes me to" ? How are you going? What is it?
    – Michael Hampton
    Oct 24, 2018 at 0:32
  • If I write server.domain.com the content i receive is the one from domain.com (which is the one from user.synology.me), instead of the content of server1.user.synology.me
    – Spider351
    Oct 24, 2018 at 0:44
  • Are you talking about going to a web page?
    – Michael Hampton
    Oct 24, 2018 at 0:46
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    What does your DNS table look like? It sounds to me that you have the DNS CNAME and A records setup incorrectly.
    – Chris Pietschmann
    Oct 24, 2018 at 0:48
  • I don't even have a A record, it's like this: name type target domain.com CNAME user.synology.me server CNAME server1.user.synology.me if i try to make a A record point to user.synology.me it says "Invalid value in dnsrecord"
    – Spider351
    Oct 24, 2018 at 0:52

2 Answers 2

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I think I need to draw a diagram to understand what you're doing here, but to be honest, point your CNAME to the proper A record for the destination. Don't chain CNAMEs.

RFC1034 allows for chaining in a technical sense, but it is simply poor practice.

A similar question was asked previously, and it's worth looking at the discussion: Is a CNAME to CNAME chain allowed?

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  • Oh, no, i don't want to point a CNAME to a CNAME, i have my DDNS, i pointed my DDNS with a CNAME, i also have subdomains on the DDNS, what i want is to point a CNAME subdomain to a DDNS subdomain, but when i'm doing it instead points my CNAME subdomain to my DDNS root domain.
    – Spider351
    Oct 24, 2018 at 0:19
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I just "fixed it". In my NAS I had in virtual hosts some hosts created: server1, server2, server3, etc. In the name of the host I had server1.user.synology.me

I just changed it to server.domain.com and now it works.

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