If you disable NodeJs system, the default ajax system will be enabled for chatting and messaging system.

NodeJs

Enabled

Disabled

NodeJs SSL Connection (Enable this if you are using your site under SSL).

Enabled

Disabled

Live Notification Bar (Enable this feature and users will get fixed notifications on bottom left of the screen).

Enabled

Disabled

NodeJs HTTP Port

NodeJs HTTPS(SSL) Port

NodeJs SSL Certificate Key Path (.key) (Only If NodeJS SSL IS enabled)

NodeJs SSL Certificate Path (.crt) (Only If NodeJS SSL IS enabled)

Redis server

Enabled

Disabled

Redis Port