HTTP Status Codes- Quick Reference
You are browsing some sites or testing your own web applications, and suddenly you receive a white screen with some error number ! No worries, if you are getting some error message means, your...
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OpenShift 4: Libvirt UPI installation.
Hello everyone, just a couple of month ago, Red Hat has released a shiny OpenShift 4 [1] based on CoreOS technology. In this guide, we going to see how we can install OCP4 UPI...
vCSA Automated Backup
vCenter 6.5 backup using cron job We all know that vCenter appliance can be backed up using its GUI window to any external servers or storage that supports FTP, SCP or HTTPS ports. However...
Sending Email Using Python and smtplib – Quick HowTo
What is smtpLib We can easily send email from python script using smtplib module, which defines an SMTP client session object that can be used to send mail to any Internet machine with an...
Mounting NFS share from Linux to Windows server
Servers used: RHEL 7.6 as NFS server & Windows 2016 as NFS Client In this scenario, we have NFS server up and running with shares mounted across different Linux clients. The requirement here is,...
DevSecOps with OpenShift – Image Signing
INTRODUCTION Just like an RPM signing, container image singing can be used to verify authenticity of a container image created by users/developers throughout image life-cycle. The concept of verification are similar to RPM gpgcheck...
Learn the basics of Linux from Red Hat [FREE]
Red Hat is offering its beginner level Linux course at no-cost; yes you heard it right – Its free ! Red Hat Enterprise Linux Technical Overview (RH024) is offering as Video Classroom and you...
AWS Summit Singapore 2019
This year AWS Summit Singapore will happen on April 10–11, 2019 at Singapore Expo Convention & Exhibition Centre. AWS is introducing a new session called TechFest on April 10, a full day dedicated to...
SSSD AD integration on RHEL7 using Ansible
Most of the time , we have requirement to integrate Linux systems in our environment with AD for Centralized user management. It will be tedious , if we have 100+ or more Linux servers...
Enforcing modern and strong OCP TLS & Cipher Suites
Introduction Enforcing strong and modern cipher is critical to ensure our deployment are well protected from old and weak cipher. Enforcing only strong and modern cipher will significantly reduced or not too bold to...
How to Label a Namespace in Openshift or Kubernetes
Labeling an object in OpenShift or Kubernetes is an awesome method to organize, group, or select API objects. Labels can be used to group arbitrarily-related objects; for example, all of the object like pods,...
