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How do I set reverse DNS (RDNS/PTR)?

Please simply open a ticket. Make sure your hostname actually resolves the IP address before requesting a reverse DNS record.
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Can I add swap memory on Linux VPS?

Swap files or partitions are not supported on our Linux VPS plans.All of our plans come with...

My VPS is using too much memory. What's wrong?

It probably isn't. You may be reading it incorrectly. Please refer to http://www.linuxatemyram.com/

Unable to launch Docker swarm due to br_netfilter messages

When receiving the following message:"error creating external connectivity network: cannot...

How can I enable NFS?

To enable NFS on your VPS, you can simply open a ticket with us and we'll handle the rest.

How can I change my SSH port?

You can change your SSH port by simply logging in to your VPS and then opening up the SSH daemon...