Many people have asked us how to become a DevOps engineer so in this post we will show you the skills and technologies which can get you there.
Before we start we should know what is “DevOps”. As you can see the word is combination of “Developer” and “Operations”. So a DevOps engineer is suppose to be a bridge between the development and operations processes.
Let’s see which skills do you need to become a DevOps engineer. In this post we will also discuss how you can acquire these skills for free. We have also mentioned some advanced paid courses which can help you acquire these skills quickly.
In this post we will see how to start or stop Jenkins on different Linux distributions. Also we will see how to check the status of Jenkins service and identify the port on which it is running or listening.
In this post we will give you a crash course on Linux LVM (Logical Volume Manager). This post will cover the most used LVM commands in a Linux Admin life.
Before we start first let’s go through the concepts.
Physical Volumes (PVs): Storage devices (physical hard disks, partitions, RAID arrays etc.) provides raw storage Volume Groups (VGs): Combine multiple PVs to create a group. They can be mirror or concatenation of PVs. Logical Volumes (LVs): Create smaller volumes from the Volume Group(VG) as per your size requirement. You can can use the LVs to create filesystem on them.
Below commands are for RHEL 7.
All the below commands will require root access. You can either run them with sudo or switch to root user as mentioned below.
Many people get confused between run levels in Linux and Solaris. One major difference among these can be disastrous also. In this post we will show you the different Run levels in both these OS and what precautions you should take while working on these.