Hello you can my please with my mail server. I need add rDNS (maybe add need to cloudflare near my domen, i don’t now) but i find instruction when writing " ask you provaider ip for add to DNS records" Example “113.37.9.4.in-addr.arpa”
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Hello,
As per this comment here, you can set the Droplet’s hostname (which would update the PTR record along with it) to e.g. mail.yourdomain.com where yourdomain.com is one of the domains on that droplet, and then add an A record for mail.yourdomain.com that points to your droplet.
This way it will be a valid PTR <=> FQDN setup and it will work fine for all of the domains on that Droplet.
As a side note, I could also suggest checking this discussion here on why adding multiple PTR records is not recommended:
https://serverfault.com/questions/618700/why-multiple-ptr-records-in-dns-is-not- recommended
Regards
Hi @nikolayurchin<
Changing PTR
DigitalOcean automatically configures the reverse dns entry (PTR) on their end. It will be the hostname you choose when you set up your droplet. You can change/check this in the control panel by selecting your droplet, then settings, then rename. As it says, changing the name there will update the PTR but not the hostname of the system, that is something you will need to do, instructions for that vary depending on the system you have installed.
To set one, you need to enter your Droplet via SSH and:
Change the hostname using hostnamectl
The first step once you have entered the droplet would be to use the
hostnamectl
command. Let’s say we want to name our droplet ‘ExampleName’. To do so, we need to execute the command like soThe hostnamectl command does not produce output. On success, 0 is returned, a non-zero failure code otherwise.
Update the /etc/hosts file
Next on our list would be to update the hosts file located in the etc folder. You can use any editor you want from nano, vi, vim.
In there you’ll see something similar to
Change the line which says the following
to be
Save the file and exit.
That should be it.
Hope this helps! Let me know if you have any questions.
Hi @Nikolay,
If you want to create rDNS records on your DNS server you can check out https://docs.digitalocean.com/products/networking/dns/how-to/manage-records/#ptr-rdns-records page where you will find a lot of information about it.
Hope that helps you,
Sergio Turpín