AWS Administration – Associate – Assessment 5
[mlw_quizmaster quiz=8]
Unix, Linux, DevOps , Cloud computing and BigData Knowledge-Base
Bash Scripting – Using Double Parantheses
Two additions to the bash shell provide advanced features that you can use in if-then statements: Double parentheses for mathematical expressions Double square brackets for advanced string handling functions The following sections describe each of these features in more detail.
Solaris : Let’s discuss about the relationship between inodes and a filesystem
Files are stored in blocks. The block sizes of a disk vary depending on kernel parameters and parameters set with the newfs command.
What is Ansible ?
Ansible is an open source automation platform. It is very, very simple to setup and yet powerful. Ansible can help you with configuration management, application deployment, task automation. It can also do IT orchestration, where you have to run tasks in sequence and create a chain...
RHEL6 Installation and Security Bench Marking Recommendations – Part8
Configuring System Information and Warning Banners Presenting a warning message prior to the normal user login may assist the prosecution of trespassers on the computer system. Changing some of these login banners also has the side effect of hiding OS version information and other detailed system...
Linux : NTP Error Message "kernel time sync error 0001"
This error message is logged by NTP daemon, and this means that the ntpd fails to adjust OS internal clock for some reasons. NTP daemon adjusts OS internal clock by invoking system call named adjtimex(). Linux kernel expects the system call to be invoked regularly, as...
Solaris Troubleshooting : Confirming Disk Failures in Solaris
This article will help to investigate and confirm a disk failure in a solaris machine ….
Solaris : Troubleshooting lost Virtual interfaces after system reboot
Troubleshooting lost Virtual interfaces after system reboot Virtual network interface that has just been setup is not seen as configured after a system reboot. The virtual interface no longer shows up in the ifconfig or netstat output.
RHEL 6 : ISCSI Administration Series : Configuring Shared ISCSI Storage
This is a continuation post to our ISCSI administration series in RHEL6 ( here are the links to my previous posts RHEL 6 – ISCSI Administration Series – Configuring ISCSI Server and Client & RHEL 6 – ISCSI Administration Series – ISCSI Lun resize ). This...
Experimenting with smf to run parallel sshd service on different port
It’s been long time that I have posted something about my funny experiments at home. Today I just spent some time to write this post for those who want to know about creating a new SMF service . This post also covers the procedure to create...
