How do I check if a port is open
I am installing ssl certificates on a few of my vps. I've already installed two and everything works great. those vps are on debian. I have a vps on centos but when I install the ssl and test it, I get a 102 connection error in chrome.
I think my configuration is correct, but I want to see if the ssl port is open. the tool I found on Google says port 80 was closed so I figured I couldn't trust it.
anyone know how I can check if a port is open?