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Thursday, September 5, 2019

Monit - Linux Open Source System or Process Monitor Program

Netsec 9/05/2019 0 Comments

1. What is Monit? Monit is a utility for managing and monitoring processes, programs, files, directories and file systems on a Unix like sys...

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Monday, September 2, 2019

Linux

Linux Virtual Machine PHP Invoked OOM-killer (Out of Memory) Issue

Netsec 9/02/2019 0 Comments

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 mess...

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Friday, August 30, 2019

Linux

Ubuntu Basic System and Service Configuration Commands

Netsec 8/30/2019 0 Comments

This post is to collect some commands to operate Ubuntu. 1. Update / Upgrade Commands sudo apt-get update : In a nutshell, apt-get updat...

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Wednesday, August 14, 2019

Guardium

IBM Guardium: Create an Alert / Policy / Classification (Use Cases)

Netsec 8/14/2019 0 Comments

An alert is a message indicating that an exception or policy rule violation was detected. Alerts are triggered in two ways: A correlat...

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Friday, August 2, 2019

Threat Hunting

Find Website Real IP by Bypassing CDN (Such As Behind Cloudflare)

Netsec 8/02/2019 0 Comments

There are more and more websites using CDN (Content Delivery Network), such as Cloudflare, to help deliver their contents to end users. It ...

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Sunday, July 14, 2019

Docker

Running WordPress in the Docker of AWS EC2 Instance

Netsec 7/14/2019 0 Comments

Docker is a technology that allows you to build, run, test, and deploy distributed applications that are based on Linux containers. Docker i...

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Saturday, July 13, 2019

Linux

Migrate WordPress Site from Ubuntu 16.04 to Ubuntu 18.04 at GCP VM and Cloud DB

Netsec 7/13/2019 0 Comments

I were using Ubuntu 16.04 as my web server and mysql server for quite a few years. They are all in the same server , either running in a doc...

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Thursday, June 27, 2019

Software

VanDyke SecureCRT Usage Tips and Tricks

Netsec 6/27/2019 0 Comments

VanDyke SecureCRT provides IT pros a very user-friendly client to manage command line devices and SSH hosts with. Connecting to devices sec...

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Saturday, June 22, 2019

Security

Cyber Security TRA (Threat and Risk Assessment) Resources Research

Netsec 6/22/2019 1 Comments

What is Risk: Risk = Threat x Vulnerability x Asset The enterprise risk assessment and enterprise risk management processes comprise the...

Wednesday, June 19, 2019

Software

Some Common Used Excel Formulas

Netsec 6/19/2019 0 Comments

This post recorded some of excel formulas used in my work: Delete Empty Rows Add the " Blanks " column to the end of the tabl...

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Latest

NETSEC

Thursday, September 5, 2019

Monit - Linux Open Source System or Process Monitor Program

Monday, September 2, 2019

Linux Virtual Machine PHP Invoked OOM-killer (Out of Memory) Issue

Friday, August 30, 2019

Ubuntu Basic System and Service Configuration Commands

Wednesday, August 14, 2019

IBM Guardium: Create an Alert / Policy / Classification (Use Cases)

Friday, August 2, 2019

Find Website Real IP by Bypassing CDN (Such As Behind Cloudflare)

Sunday, July 14, 2019

Running WordPress in the Docker of AWS EC2 Instance

Saturday, July 13, 2019

Migrate WordPress Site from Ubuntu 16.04 to Ubuntu 18.04 at GCP VM and Cloud DB

Thursday, June 27, 2019

VanDyke SecureCRT Usage Tips and Tricks

Saturday, June 22, 2019

Cyber Security TRA (Threat and Risk Assessment) Resources Research

Wednesday, June 19, 2019

Some Common Used Excel Formulas

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