NIST CSF Core Notes
NIST Framework Components The Cybersecurity Framework consists of three main components: The Framework Core provides a set of desired cybersecurity activities and outcomes using common language that is easy to…
Cyber Security Technology with NIST Cyber Security Framework
Layered Security & Defense In Depth A layered approach to security can be implemented at any level of a complete information security strategy. Whether you are the administrator of only…
Install and Use Webbench to Benchmark Web Servers
Web Bench is a very simple tool for benchmarking WWW or proxy servers. This benchmark is not very realistic, but it can test if your HTTPD can really handle so…
GitHub Basic Usage
GitHub is a Git repository hosting service, but it adds many of its own features. While Git is a command line tool, GitHub provides a Web-based graphical interface. It also…
Install Nginx, MariaDB, PHP (LEMP) and WordPress on CentOS 7
Create CentOS 7 VM & Update sudo -i yum update -y yum install epel-release yum-utils -y yum clean install Install Nginx yum install nginx -y service nginx start *browser to…
Easily Deploy ELK into CentOS 7
The Elastic Stack — formerly known as the ELK Stack — is a collection of open-source software produced by Elastic which allows you to search, analyze, and visualize logs generated…
Create Free Tier Windows/Linux Virtual Machines in Azure Cloud
Azure free tier provides following free services for 12 months after one month for your free $200 credit: 750 hours B1S VM Windows Virtual machines 750 hours B1S VM Linux…
Putty Tips and Tricks
1. Putty Auto Login into Session with Username and Password Create a bat file and you can schedule it to run with following command: C:\tools\putty.exe -load session_name -l your_user_name -pw…
Monit – Linux Open Source System or Process Monitor Program
1. What is Monit? Monit is a utility for managing and monitoring processes, programs, files, directories and file systems on a Unix like system. Monit conducts automatic maintenance and repair…
Linux Virtual Machine PHP Invoked OOM-killer (Out of Memory) Issue
One of my GCP VM is running at f1-Micro type which only has limited memory, 614MB. From syslog, I found it has a PHP invoked OOM killer messages. This usually…
Ubuntu Basic System and Service Configuration Commands
1. Update / Upgrade Commands sudo apt-get update : In a nutshell, apt-get update doesn’t actually install new versions of software. Instead, it updates the package lists for upgrades for…