monitor Esxi with Nagios

sudo yum install epel-release sudo yum install python-pip   Problem: Cannot uninstall ‘PyYAML’. It is a distutils installed project and […]

Install Openmanage on VMware Esxi

This article describes the installation process of OpenManage Server Administrator VIB (OMSA) on VMware ESXi 5.x and/or VMware ESXi 6.x. […]


  Export to a file tcpdump -i <interface> -s 65535 -w name.pcap   -n:  will suppress name resolution of IPs, […]

AWS cli -S3

S3 Log on the AWS console, go to Users > Security credentials create an access key ID and Secret Access […]

Proxy ARP

How Does Proxy ARP Work? This is an example of how proxy ARP works:   Network Diagram The Host A […]

Graylog 2

Prerequisite We need to install following softwares: One Ubuntu 16.04 server with at least 2 GB of RAM, private networking […]