This guide outlines the installation and configuration of Network UPS Tools (NUT) for monitoring a Tripp Lite USB PDU, enabling Zabbix integration. It covers prerequisites, file configuration, USB permissions, firewall settings, service management, and setting up Zabbix agent parameters, concluding with adjustments for SELinux to facilitate data collection.
centos
Configure RHEL7/Centos 7 as a Virtualization Host
This is a fresh install of RHEL 7.5 First install the packages as shown below. yum install qemu-kvm libvirt Now install the additional recommened virtualization packages # yum install virt-install libvirt-python virt-manager virt-install libvirt-client Now restart libvirtd # systemctl restart libvirtd Now you should be able to launch virt-manager from your remote machine and … Continue reading Configure RHEL7/Centos 7 as a Virtualization Host
RHEL 7 Two-Factor SSH Via Google Authenticator
In this post, I am going to walk you through the process of installing and configuring two- factor SSH authentication via Google Authenticator. My base system is running a fresh install of RHEL 7.2 Installation Steps The first step on my system was to install autoreconf, automake, and libtool. These packages are required by the bootstrap.sh script that … Continue reading RHEL 7 Two-Factor SSH Via Google Authenticator
Redhat 6 Minimal Kickstart Configuration with VMware Tools and Puppet Agent Install
Here is my small, crude, little Kickstart configuration and post install script that I have up and running in my lab at home. Don't expect to find anything too fancy here, as this Kickstart was purposefully built to be small and to the point. Here, the point was to spin up a VM, run through a basic install of CentOS/Redhat Linux, and install VMware Tools along with a Puppet agent.
Getting Started with Git: Creating a Git Repo
So first off let me start by saying that I know that there is a ton of information out there on how to get started with Git. Heck, when you create your repo in GitLab it spits these instructions right out in front of your nose. However, what I have found is that most instructions tell you what to do to get started with git, however they do not tell you exactly what you are doing. You end up running a few command and then sit back and try to figure out what you actually just did.
RHEL6: Cool PAM Tricks – Logging Terminal Keystokes
This is a neat and very useful trick that I learned today. Lets say that you want to be able to monitor and log all keystrokes that are typed as root. This is particularly useful as normally you can only log when a user uses sudo to run a command. If the user has the abilty to become root however, then they have effectively eluded yourattempts to track their activity. Like Thomas Magnum shaking a tail, they are free to scoot around your island with the top down.
RHEL6: Composing Custom Auditd Rules for Fun and Profit
Auditd gives you the ability to write your own custom audit rules. This functionality allows an administrator to keep a close eye on system calls, file access, and user behavior. This added functionality is especially useful in environments that are requred to adhear to compliance standards that are above and beyond normal standards. Think PCI.