Tags » RedHat

Adding check-multipath.pl to Nagios

# Download script from here:


# cp check-multipath.pl /usr/local/nagios/libexec/

# Edit sudoers to allow for nagios user to run commands:
nagios ALL= NOPASSWD: MULTIPATH… 75 more words


Day 3

I didn’t post yesterday but I did keep myself pretty busy. Did a 3 mile run in the afternoon + legs and core training with my Fitstar App; great workout and every muscle in my body kills :(  I ate a lot of green, fruits, and one of my food fav’s SALMON! 175 more words

How To Clear Memory Cache In Linux

Clearning the Linux Memory cache can be a quick way to regain system resources. Writing to the drop_cache process will cause the kernel to drop clean caches, dentries and inodes from memory, causing that memory to become free. 116 more words

Clear Memory Cache

systemd - An Intro

From RHEL 7, a new architecture has been introduced in managing the services and that is called as systemd. Controlling the services on how they’re started, stopped etc are now done by systemd. 278 more words


Add a new virtual volume to an LVM partition of a virtual VMWare system running a RedHat type Operating System

  • Add a new drive to your virtual machine using the graphical VMware tool, currently VMware vSphere
  • Reboot the virtual machine so the new drive can be seen by the host Operating System…
  • 183 more words
Tips And Tricks

How to setup the NTP service in RHEL7

Install the NTP package:

# yum install -y ntp

Activate the NTP service at boot:

# systemctl enable ntpd

Start the NTP service:

# systemctl start ntpd… 35 more words

RESTEasy Tutorial Part-1: Basics

RESTEasy Tutorial Part-1: Basics

RESTEasy is a JAX-RS implementation from JBoss/RedHat and is in-built in JBoss 6 onwards.
Here I am going to show you how to develop a Simple RESTful Web Services application using RESTEasy and JBossAS7.1.1.FINAL.