Skip to main content

Documentation Index

Fetch the complete documentation index at: https://speedypage.com/docs/llms.txt

Use this file to discover all available pages before exploring further.

Reverse DNS (rDNS) maps an IP address back to a hostname. Many mail servers reject email from IPs without a valid rDNS record, so this is worth setting up if you run a mail server on your VPS.

​
Prerequisites

Create a forward DNS record (A or AAAA) pointing your hostname to the server’s IP address before setting rDNS. The record won’t work without a matching forward entry.

​
Set up rDNS

1

Open your VPS in the client area

Log in to my.speedypage.com and click Manage on the server you want to configure.
2

Find your IP address

Go to the Network tab and find the IP address you want to set rDNS for.
3

Set the hostname

Click Reverse DNS, enter the hostname you want the IP to resolve to, and click Update.

​
Verify the record

After a few minutes, confirm the rDNS record is working by running this command in a terminal: 
dig -x YOUR_IP_ADDRESS +short
This should return the hostname you entered.