Linux System Performance Analytics
This post is going to use an java code example to show the process how to analysis linux system performance issue using all kinds of Linux internal commands without other…
Deploy Zabbix Agent into CentOS and Add into Zabbix Server
Zabbix Agent is required to install on all remote systems needs to be monitor through Zabbix server. The Zabbix Agent collects resource utilization data and applications data on the client…
Quickly Deploy Zabbix in CentOS7
Zabbix is a mature and effortless enterprise-class open source monitoring solution for network monitoring and application monitoring of millions of metrics. This post is going to install zabbix4.0 into a…
Benchmark Linux Disk Read/Write Speed
hdparm is a command line utility to set and view hardware parameters of hard disk drives. It can also be used as a simple benchmarking tool. Install hdparm CentOS #…
Some Popular Linux VPS Bench Scripts
Cloud service providers often define host tiers by the allocated resources, but the differences in the underlying hardware, architecture and performance tuning can result in varying capabilities even between similar…
Monit – Linux Open Source System or Process Monitor Program
1. What is Monit? Monit is a utility for managing and monitoring processes, programs, files, directories and file systems on a Unix like system. Monit conducts automatic maintenance and repair…
Linux Virtual Machine PHP Invoked OOM-killer (Out of Memory) Issue
One of my GCP VM is running at f1-Micro type which only has limited memory, 614MB. From syslog, I found it has a PHP invoked OOM killer messages. This usually…
Ubuntu Basic System and Service Configuration Commands
1. Update / Upgrade Commands sudo apt-get update : In a nutshell, apt-get update doesn’t actually install new versions of software. Instead, it updates the package lists for upgrades for…
Install Portainer to Manage Containers – Nginx, MySQL, WordPress
Portainer is a lightweight management UI which allows you to easily manage your different Docker environments (Docker hosts or Swarm clusters). It is meant to be as simple to deploy…
CentOS Basic Configuration and Services/Software Installation (Docker, Vsftp, Samba, etc)
The CentOS (Community Enterprise Operating System) Project is a community-driven free software effort focused on delivering a robust open source ecosystem. For users, CentOS offers a consistent manageable platform that…
Ubuntu 16.04.5 LTS (Xenial Xerus) Installation Step by Step in VMWare Workstation (Not Easy Installation)
1. Ubuntu16.04 Installation 1.1 VMware Workstation Virtual Machine Creation for not easy installation If you are using VMware workstation , by default, system will do easy installation for you, which…
Install OpenVAS on Ubuntu
OpenVAS is a framework of several services and tools offering a comprehensive and powerful vulnerability scanning and vulnerability management solution. The framework is part of Greenbone Networks’ commercial vulnerability management…