This objective of LPIC-2 201 is mainly about understanding how to load and unload kernel modules. Of course much of the time this is handled automatically as the hardware is detected and there is little that we have to do. But of course those times it goes wrong or where we perhaps are testing different […]
LPIC-2 Exam 201
Compiling a Linux Kernel on CentOS 6.5
Getting ready for the LPIC-2 201 exam we look at objective 201.2 compiling a Linux Kernel. For this we use the 3.14 kernel on CentOS 6.5. Changing from the original 2.6.32 kernel that ships with CentOS. Having downloaded the kernel we expand it in the the directory /usr/src tar -Jxvf linux.314.3.tar.xz -C /usr/src/ From there […]
uptime, w, top sar -q
The final elements of objective 200.1 of the PIC LPIC-2 exam 117-201 that we will look at is the Load Averages that we can read from from a range of tools on the Linux command line interface. using CentOS 6.5 will will show examples of this use uptime, w, top and sar -q. We will […]
Using netstat, iptables and lsof to determine network performance
For the LPIC-2 exam 117-201 from November 2013 you will be expected to know ho to determine performance and resource usage on your Linux System. For this tutorial we are using CentOS 6.5 and looking at the commands netstat, iptables and lsof and perhaps some more obcsure options to show the information that we want. […]
Graphing your system performance in Linux with collectd
Performance monitoring is new to LPIC2 as from November 2013. The objective 200.2 will expects you to have some knowledge of base-lining the performance of your Linux hosts and being able to see the impacts that added load has to the performance. This we we can effectively predict future resource needs and capacity burnout. Even […]
Working with sysstat and sar
Continuing with the objective 200.1 for the LPIC-2 117-201 exam we learn how to monitor our Linux system with tools from the package sysstat. Will will install sysstat on our Raspberry Pi and learn to use tools like iostat and mpstat that are included with the package. the main process to look at the data […]