WHETHER you’re budgeting for a regular manicure or pedicure or saving up to have one on special occasions, it’s important to remember the gratuity. But how much is appropriate for a ful…

I am setuping my server and I must disable the ping requests for everyone except me and a list of hosts (aaa.bbb.ccc.ddd). I am using the tool ufw, on ubuntu server, I read that I have to comment ...