ow do I login as superuser or root user in a Linux operating systems?
ow do I format Linux file system? Can you tell me command names to format and create a Linux file system?
ow do I delete a file under Linux / UNIX / BSD / AIX / HP-UX operating system using command line options?
am a new Linux server sysadmin. How do I protect a directory in Apache web-server on a Linux operating systems?
ow do I find out my DNS server addresses under Linux, UNIX, Apple OS X/macOS, MS-Windows operating system? What is my dns server IP address under MS-Windows operating systems? Can you specify a list of public DNS server for personal use or game consoles?