There are some scenarios where submit button is enabled if at least one input has value. This tutorial will show you how to enable the submit button if you enter something into a text box, select drop down and check a check box.
UFW – Uncomplicated Firewall provides a user friendly way to create an IPv4 or IPv6 host-based firewall which helps a regular user to deny all incoming connections without much configuration.
ZNC allows you to stay connected to IRC network. Multiple clients can be connected to single ZNC account different locations simultaneously and therefore appear under the same nickname on IRC server.