How to protect a Linux system from brute force attacks
The most common type of attack on Linux servers are performed by script kiddies. They have computers running that continuously scans the internet to find
Operating Systems
How to use Tar and Unzip on Linux to compress and decompress files
Tar and Zip are both file compression formats that you’ll encounter. You can use built-in utilities in Linux to compress and decompress / expand these
Where are Linux log files stored?
The key to solving Linux related server problems is to know where the log files are stored and to be able to get to them
How can I find out my public IP address using the command line?
dig +short myip.opendns.com @resolver1.opendns.com Reference: https://www.cyberciti.biz/faq/how-to-find-my-public-ip-address-from-command-line-on-a-linux/
How to sort files in Linux in date order
Use the following flags with ‘ls’ to control the directory date sort order: ls -lat -l is for long style -a is for all (including
How to turn off or on a Linux service from starting up from the command line
Use this command: # chkconfig service_name on or off
How to set up SNMP for CentOS
Background This guide explains how to install SNMP on CentOS. Procedure Install the core library. Please note, this excludes snmpwalk: yum install net-snmp Later in
How can you see how many virtual CPUs / vCPU cores is on a VPS Hosted server?
Background It’s really useful to see how many virtual CPUs (vCPU) cores you have when you’ve just upgraded your VPS hosting. Use the command below
What is my IP address? How can I determine my IP address reliably from the command line using Linux?
Introduction This article explains how to get the IP address of a computer as viewed from the outside. The reason why you might want to
Where is killall on CentOS?
Help! My CentOS server is running away from me and I can’t find killall! Where is killall? Use pkill process instead, e.g. pkill apache2 Reference: