I want test my Linux, OpenBSD, FreeBSD and Unix-like server entirely for high load and monitoring the health under stress. How can I stress out my CPU, memory, I/O, and disk stress and more with stress test tool on a Linux or Unix-like systems?
[continue reading…]

How do I view process address space under Linux operating systems?
[continue reading…]

Many users are using ssh to log into a remote machine and append the indicated identity file to machine’s ~/.ssh/authorized_keys file. I recently moved one of my server, and I would like to revoke openssh keys and disable user access under Linux operating systems. How do I revoke OpenSSH keys under Unix or Linux operating systems?
[continue reading…]

How do I display a list of all network cards under Linux operating systems?
[continue reading…]

How do I install nmon command under Linux operating systems to find out performance information for my CPU, memory, network, disk, virtual memory, top process and other part of my HP server running on Debian Linux or CentOS Linux 6.x amd64 bit server?
[continue reading…]

How do I find out what the name of my CD-ROM or DVD device or Blu-ray device is under Linux operating system without using GUI options?
[continue reading…]