max connections 300
 

Hi

In tuning tab the max connections are 300.

Is this ok for 1200 daily visits for my forum and about 220 users active at the same time?

I am on vps with good cpu and 4gb ram.

Also is this setting good for ddos?

Thanks

I think it's too low, increase it to at least 800.

DDOS settings is in the Security tab.

depends on which version of LSWS are you using.
Standard support 150 concurrent connections, VPS is 500, other enterprise editions are unlimited.
However, all should be able to handle your traffic just fine. facing DDoS attack is another story though.