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Posts published in “Software”

Windows 10 Tweaks, Tips and Tricks


Here are some simple but effective windows tweaks, tips and tricks to streamline your windows computing experience. Here are list of my collections (still keep adding):
1. Fix High CPU Usage by Windows Software Protect Service (Sppsvc.exe)
2. Install Telnet Client
3. Check System Uptime
4. Hiding Windows Folder
5. 上帝模式一键开启
6. 历史问题一目了然 (Reliability Monitor)
7. 一Click锁定电脑 Other than WIN+L
8. 常用程序快捷启动
9. 快速以管理员方式启动程序
10. 无盘符分区,保护/访问两相宜
11. 双击任意窗口的最左上角都能关闭该窗口
12. Ctrl+Alt+Del=Ctrl+Shift+Esc to open Task Manager
13. Issue: Microsoft Office can't find your license for this application or Windows is not activated
14. Windows 10 Battery Report
15. RDP Port Change to TCP 443
16. Windows 10 Defaultuser0 password Issue

Step by Step Installation Python IDE – PyCharm


Based on Wikipedia, PyCharm is an integrated development environment (IDE) used in computer programming, specifically for the Python language. It is developed by the Czech company JetBrains. It provides code analysis, a graphical debugger, an integrated unit tester, integration with version control systems (VCSes), and supports web development with Django.

PyCharm is cross-platform, with Windows, macOS and Linux versions. The Community Edition is released under the Apache License, and there is also Professional Edition with extra features, released under a proprietary license.

This post and related YouTube video will show you the step by step installation.

1. Download Free Community Version 

From download URL:, we will get a 212MB file : pycharm-community-2018.3.2.exe.

Best Free Network Performance Test tool – Iperf


According to wikipedia Iperf “is a commonly used network testing tool that can create TCP and UDP data streams and measure the throughput of a network that is carrying them. Iperf is a modern tool for network performance measurement written in C++.” This tool has to configure server side and client side to complete a test. It can test from client side to server side , also can test from both direction. 1. Download iperf 3 …

Python Cyber Security Testing Tool Collection


Networking Scapy: send, sniff and dissect and forge network packets. Usable interactively or as a library pypcap, Pcapy and pylibpcap: several different Python bindings for libpcap libdnet: low-level networking routines, including interface lookup and Ethernet frame transmission dpkt: fast, simple packet creation/parsing, with definitions for the basic TCP/IP protocols Impacket: craft and decode network packets. Includes support for higher-level protocols such as NMB and SMB pynids: libnids wrapper offering sniffing, IP defragmentation, TCP stream reassembly and port scan detection…

Smallest Firewall / Router VM in My Vmware ESXi and Workstation


In my home lab virtual environment, VMware ESXi and Workstation used to host most of my testing virtual machines. To get those VMs working together in a multi networks diagram, I always need to have a router or firewall VM. I were using all kinds of virtual routers or firwealls, such as those major vendors, Cisco, CheckPoint, Juniper, Fortinet, Palo Alo, also some small vendors, such as OpenWRT,PFsense, RouterOS, etc. But recent I found one small Virtual image surprised me. The whole virtual image file is only 1.4MB. Memory only needs 16MB.