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Kubectl Cheat Sheet
Introduction​ Kubernetes is a famous container orchestration tool that is very popular in modern software development. If you are using Kubernetes, you must have used Kubectl, which is the command line tool to manage your Kubernetes applications. This guide will walk you through the most frequently used commands for Kubectl. Not only will we discuss […]
Check SSL Certificate mismatch
You can check if an SSL certificate matches a Private Key by using the 3 easy commands below. For your SSL certificate: openssl x509 -noout -modulus -in <file>.crt | openssl md5 For your RSA private key: openssl rsa -noout -modulus -in <file>.key | openssl md5 For your CSR: openssl req -noout -modulus -in <file>.csr | […]
Howto install sar & ksar system activity info in Centos / Redhat
The sar command collect, report, or save UNIX / Linux system activity information. It will save selected counters in the operating system to the /var/log/sa/sadd file. Fromlinux-logo the collected data, you get lots of information about your server: CPU utilization Memory paging and its utilization Network I/O, and transfer statistics Process creation activity All block […]