Linux SysAdmin] 1. Starting Linux SysAdmin

Hello, guys. Over the next few weeks, I will post how to manage Linux. Linux is one of the operating systems installed and operated on many servers. There are various Linux operating systems such as Red Hat Enterprise Linux, SUSE Linux Enterprise Server, Fedora, CentOS, Ubuntu and so on. Among these operating systems, I will post about how to manage CentOS and Ubuntu.

Linux is installed and running on a wide variety of hardware and maybe you see servers with an Intel or AMD CPU(s). The above picture is Fujitsu PRIMERGY RX300 S8 server with dual Intel Xeon E5 CPU. We bought this server 4 years ago and it is still working without any problem. I installed Ubuntu Linux at that time and it is still in good use. You can see what the inside of the server looks like from the photo above. Middle or high-end servers are more complex.

Using a physical server for personal learning is costly. Because it costs thousands to tens of thousands of dollars per server. If you want to test the network, you need several servers. So how much money do you need for the test?

Don't worry. With virtualization technology, you can create and use multiple virtual machines on your computer. So I posted several posts about VMware Workstation Pro. It is hosted hypervisor to do intuitive and easy to use. The disadvantage is that it is commercial software. But it will be cheaper than the value of technology that can be acquired through it.

If you don't know how to use VMware Workstation Pro, please refer the following post.

https://sunguruitchannel01.blogspot.com/2013/12/categories-quick-link.html

In the next post, you will know what the server is.

See you next. Thank you.