Apache, LiteSpeed, Nginx, Lighttpd, IIS, WebServerX, uWSGI
php5.6x – tested up to – php7.1x max!
cURL support = enabled
And for using maps you may need to go ahead and add these to the php.ini file as well.
MYSQL 5.6 – 5.7 max
You MUST disable strict mode! – If you attempt to install and get an activation error then this may be the reason!
If you are on a vps or dedicated server then you will typically need to do this in 2 places = phpmyadmin as root under variables link (google it) and also in the etc/my.cnf and then reboot mysql and it should be good to go.
Next you will possibly need to open up TCP ports if RETS connection fails and or you have any of these “Numbers” within your RETS connection url.
TCP – 6103 | 6160 | 8080
* example url: http://rets.torontomls.net:6103/rets-treb3pv/server/login