What is a private network? Which CIDR addresses denote private networks? What is RFC1918?
These are common basic networking questions that interviewers ask to [...]
Linux inode Basics and Common inode Job Interview Questions
When you're in a Linux/DevOps/SRE job interview, one of the [...]
Linux Users
Users are one of the core concepts in Linux. It's [...]
Linux init Interview Questions
What is Linux init? Init is traditionally the first process [...]
What are some basic Linux systemd service management commands?
Here's a systemd command cheatsheet that you can use to [...]
What is a ‘service’ on Linux made of?
How do you go from ‘binary’ to ‘service?’ In a [...]
What’s the difference between devops and SRE?
Devops is a cultural idea. Site Reliability Engineering (SRE) is [...]
OSI Model
What are the layers of the OSI model? PhysicalData LinkNetworkTransportSessionPresentationApplication
Containerization
Linux Containers (LXC and LXD) and Docker containers are becoming [...]