HowTo: Use ps, kill, nice, and killall To Manage processes in FreeBSD and OS X Unix Operating System

I ‘m a new Unix system user. How can I manage process on a FreeBSD operating systems?   A process is nothing but an executing program on FreeBSD or Unix-like system. Each process on the…

How To Stress Test CPU and Memory (VM) On a Linux and Unix With Stress-ng

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…

Apple OS X: Install X Window System XQuartz For SSH X11 Forwarding On a Mavericks or Yosemite

I need to tunnel X Window securely over SSH bases session so that I run X program on my remote Linux/Unix server/workstation and get back display to my Apple Macbook pro laptop. I tried the…

Use ssh-copy-id with an OpenSSH Server Listening On a Different Port

M y OpenSSH server listening on TCP port number 2222. How can I use ssh-copy-id with an sshd server with listening on a different port on a Linux or Unix-like systems?   The ssh-copy-id is…

How To Mount a Remote Directory With SSHFS on a Linux

H ow can I mount a remote directory with ssh on a Linux bases system? How do I use SSHFS to mount remote file systems over SSH on a Ubuntu or Debian/RHEL/CentOS/Arch Linux system?  …

Linux / Unix: OpenSSH Multiplexer To Speed Up OpenSSH Connections

H ow can I multiplex SSH sessions by setting up a master session and then having subsequent sessions go through the master to speed up my ssh connection on a Linux or Unix-like operating systems?…

SSH ProxyCommand example: Going through one host to reach another server

H ow do I use and jump through one server to reach another using ssh on a Linux or Unix-like systems? Is it possible to connect to another host via an intermediary so that the…

How To SSH Run Multiple Command On Remote Machine And Exit Safely

I have a backup sync program on local server. I have an ssh password less login set up, and I can run commands on an external server in bash script doing: ssh root@server2  sync; sync;…

How To Patch and Protect OpenSSH Client Vulnerability CVE-2016-0777 and CVE-2016-0778 [ 14/Jan/2016 ]

T he OpenSSH project released an ssh client bug info that can leak private keys to malicious servers. A man-in-the-middle kind of attack identified and fixed in OpenSSH are dubbed CVE-2016-0777 and CVE-2016-0778. How do…

How to apply patches on OpenBSD system/kernel and packages easily

Iam a regular Linux system user. In Linux (especially CentOS), I am used to applying updates a few times a week using yum command, but how do I do that on my OpenBSD severer? How…