High-Availability (HA) with Syncplify.me Server! v4

Syncplify.me Server! version: 4.0.17+

Version 4.x of Syncplify.me Server! introduced a remarkable amount of new features, and improved some of the existing ones greatly. The latter is the case of high availability deployments, which have been rendered much easier and a lot more powerful.

This article explains one way (not the only possible one) to install and deploy a highly available multi-node Syncplify.me Server! in your network.

First of all, let’s prepare 3 virtual machines:

  • 1 VM for the DB and HTTP/REST server
  • 2 VMs for the SFTP server nodes

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How to install Syncplify.me Server! v4

Syncplify.me Server! version: 4.0.0+

If you are already running an older version (v3.x) of Syncplify.me Server! and you wish to upgrade, then please carefully review this other KB article.

This article is intended only for new installations of Syncplify.me Server! v4.x onto systems where no other version of the software has ever been installed. The video below shows in detail the entire procedure:

 

Can I run Syncplify.me Server!’s HTTP REST API on port 443?

Syncplify.me Server! version: 4.0.0+

During the installation process of Syncplify.me Server! v4.x (or greater) you will be asked the IP address and port to which the new HTTP REST API service should bind. While in most cases 0.0.0.0 (all interfaces) is a safe choice for the IP address, it is important to carefully choose a port.

In order to help you choose, we have prepared a very easy diagram. Just answer the questions on the diagram, and you’ll know which port (not) to use.

HTTPS Port Choice

This said, in order to limit automatic probes (bots), choosing a non-standard port is probably always the safest way to go.

Syncplify.me Server! pre-install check list

The Syncplify.me Server! system service may fail to start, or otherwise fail to answer incoming connections, if the following requirements are not met. So it is very important to double-check every item in the list below before running the installer.

  1. No other FTP(S) or SFTP (therefore also SSH) server should be running on the same TCP ports used by Syncplify.me Server! By default FTP runs on ports 21 and 20, FTPS (implicit) runs on ports 990 and 989, and the SSH/SFTP service runs on port 22. Please make sure such ports are available.
  2. Make sure your server or VM has at least 256 MB of RAM (512 recommended).
  3. Make sure your server or VM has at least 100 MB free hard disk space.
  4. If you will be running Syncplify.me Server! behind a firewall, please, make sure all NAT rules on your firewall are in place and working correctly.

Performing the few simple checks here above can avoid 99.9% of all installation problems, and guarantee you’ll be up and running in a matter of minutes.