What is a database management system?

A Database Management System is a system that allows multiple users to access, create and modify data entries in a database. The program is a multiuser application that will allow multiple users to access and change records easily, whilst maintaining the integrity of the data and also ensuring the security of the Database, with user … Read more

The ss command. A very useful way to find open and listening ports on a Linux system.

The ss command for Linux allows a user to list all listening ports on a Linux system. This command lists all listening TCP ports. homer@deusexmachina ~ $ ss -l -t State Recv-Q Send-Q Local Address:Port Peer Address:Port LISTEN 0 1 127.0.0.1:4101 *:* LISTEN 0 50 *:netbios-ssn *:* LISTEN 0 128 *:sunrpc *:* LISTEN 0 128 … Read more