Umask in Linux
What is it? Umask in Linux is a Linux command that is used to assign the default file permission sets that will be assigned when a file or a directory will be created by a…
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Linux Pacemaker – the new HA (High Availability)
In the world of running critical application, where we cannot afford downtime caused by hardware failures, it becomes necessary to run cluster of hardware, where the application can be automatically migrated to another running hardware,…
Bacula : Testing Bacula Backup Job
This is a continuation of the post “Bacula Backup Systems (Server)” which can be accessed by clicking here. In this employment the server, database and storage is hosted in one single server. To test the…
SELINUX
SELinux is a set of security rules using which we can control the processes that can access specific files, folders and ports. These processes, files, folders and ports has a special security label called SELinux…
Configuring TLS in Postfix
This post is a continuation on previous posts. It is expected that you have a working Postfix server with Virtual Domain hosting, Dovecot based authentication and filtering using Spamassassin. The previous post in this series can be…
Docker: Creating a Docker Registry in own hardware
DockerHub is a free SaaS platform that can be used for storing and retrieving Docker images in public repositories. DockerHub also provides private registries, which is a paid service. However if we have a good…
Windows Remote desktop connection authentication error due to CredSSP
This post aims to provide the reason on why Windows client systems get the following error when trying to access a Window server using RDP Error message: Remote desktop connection authentication error due to CredSSP…
SSL certificate: How to create a self signed SSL certificate using a Linux server
What is an SSL certificate? An SSL Certificate (A Secure Sockets Layer certificate) is also called as a Digital Certificate. Using this certificate we can creates a secure link between a website and a client’s…
Python : File Handling – Reading file line by line
This post is a continuation of the post Python : Basics of File Handling The below program prompts user to enter the full path of a file to be read, and prints each line one…
Python : Python PIP
What is Python PIP ? Python pip is a command line tool to install and manage python packages. These packages are generally found on Python Package Index. More information about Python Package Index is found…