tech backup 2

A tutorial on determining server information that intermediate-level users and management often ask Systems Administrators. Recommended for application support staff.

How to get information on your server

Kernel

How to update Linux kernel settings with examples from Hadoop.

Includes information on /proc and sysctl.

Linux Kernel Settings

Networking Articles

Documents on topics such as:

DNS DNS Zones
how more than one VLAN can be accessed from a single NIC

Linux Networking

LVM

An introductory article on disk management using LVM for experienced UNIX users.

Overview and LVM Commands

DNS

Articles on DNS for UNIX systems administrators: An introduction to DNS zone files ; DNS Server Configuration ; rdc ;

DNS Administration

Capacity

Questions to ask yourself w hile performing performance diagnosis.

How to diagnose memory issues, including an article on vmstat .

Diagnosing performance issues

Python

Python modules (using numpy to calculate options as an example)

Note: more artciles will be completed shortly.

Intro to Python Scripting

Linux Config

Article on configuring yum repositories .

Upcoming: How to create your own RPM

Linux Configuration Tools

Modern Networking

Linux policy routing , SDN (Software-Defined Networking), NFV (Network Function Virtualization)

Current topics in networking

More...

More documentation being added every month.