Red Hat Linux Troubleshooting – File system Errors
This post will help you resolve the Linux file system issue that causing below errors.
Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base
VCS 6.1 : How to Administrate VCS Service Groups using the hagrp
A service group is an instance of a computer service that is made highly available with VCS. A group comprises one or more resources of various resource types, such as disks, volumes, or databases. Use the hagrp command to view information about and manage each group
Solaris 11 – How to Shutdown a Solaris 11 System
How to Shut Down a System by Using the shutdown Command Become the root role. For a multiuser timesharing server shutdown, find out if any users are logged in to the system. # who Shut down the system. # shutdown -iinit-state -ggrace-period -y -iinit-state Brings the system...
Linux Admin Reference – 32bit mode vs 64bit mode – Redhat Enterprise Linux
There are two primary modes of operation of the microprocessor architecture: Long mode (lm) and Legacy mode. Long mode is used by 64-bit operating systems. It combines the processor’s native 64-bit mode and a 32-bit/16-bit compatibility mode. Under this mode, 64-bit, 32-bit and 16-bit applications may...
Solaris Troubleshooting X86 : finding cause for system power off
Here we discuss about some guidelines on how to proceed if you find a Sun X64 server has unexpectedly powered off. The examples offered may be specific to a particular command or firmware version, are provided to illustrate a troubleshooting concept, and may not apply to...
Bash Scripting – Performing Math
Another feature crucial to any programming language is the ability to manipulate numbers. Unfortunately, for shell scripts this process is a bit awkward. There are two different ways to perform mathematical operations in your shell scripts.
RHEL6 Installation and Security Bench Marking Recommendations – Part4
Network Configuration and Firewalls This section provides guidance for secure network and firewall configuration.
RHEL6 – KVM Administration CookBook – Part 1
I believe, this is one of the long pending post from me. Anyway, before proceeding with the actual cook book first let’s briefly recollect the concept of virtualization. Virtualization is noting but creating an abstraction layer in between the Operating System and Hardware , so that the physical hardware...
Solaris Troubleshooting : Data Gathering to Troubleshoot ZFS issues
This article will help you to gather all necessary information required to troubleshoot a ZFS related issue in Solaris 10 Operating System. Actual resolution to the issues that you find during the data gathering is out of scope.
Master DNS Server Configuration in Linux
The Configuration mentioned in this post is part of the post “DNS Server Configuration in Linux“ A master server is the basis for the DNS infrastructure. It provides a place to define all DNS records and extend them to secondary servers that can help with load...
