• Create a Free Tier Windows Virtual Machine in Azure

Azure free tier provides following free services for 12 months after one month for your free $200 credit: 750 hours B1S VM Linux and Windows Virtual machines 64GB x 1 Storage – 2 P6 SDDs 5 GB File Storage 250 GB SQL DB 15 GB Bandwidth (Data Transfer) etc Read more • 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… Read more • 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 as it is to use. It consists of a single container that can run on any Docker engine (can be deployed as Linux container or a Windows native container). Portainer… Read more • Free Tier VPS Bench Comparison for AWS, Azure and Google Cloud All of AWS, Azure and Google Cloud are providing some kind of free tier to the users. I am always wondering how those free tier VPS performance looks like. I did some bench work to test them out. Here is the method and result. Bench script: https://github.com/n-st/nench provides a nice bench.sh and a single command for you to run this… Read more • Forwarding Windows Event Logs to Syslog Server (Kiwi Syslog) Centralizing your logs saves time and increases the reliability of your log data, especially for Windows machines. When Windows log files are stored locally on each server, you have to individually log into each one to go through them and look for any errors or warnings. It’s possible for a Windows server to forward its events to a “subscribing” server.… Read more • PFsense Configuration with Topology and Screenshots pfSense is an open source routing and firewall software that is based on the FreeBSD distribution. The basic features including: pfSense Home Topology Static/default/dynamic routing Stateful firewall Network Address Translation (NAT) Virtual Private Networks (VPN) Dynamic Host Configuration Protocol (DHCP) Domain Name System (DNS) Load balancing and so on. With many supported add-on packages, other advanced features including: Snort (for… Read more • Qualys Scanner Appliance and Qualys Guard Service Tips and Tricks The Qualys Cloud Platform and its integrated apps can simplify security operations and lower the cost of compliance by delivering critical security intelligence on demand and automating the full spectrum of auditing, compliance and protection for IT systems and web applications. Qualys Scanner Appliance is an option with the Qualys Cloud Platform. With the Qualys Scanner Appliance, you can easily… Read more • Install ProxMox 5.3 into VMware Workstation 14 Proxmox VE is a complete open-source platform for all-inclusive enterprise virtualization that tightly integrates KVM hypervisor and LXC containers, software-defined storage and networking functionality on a single platform, and easily manages high availability clusters and disaster recovery tools with the built-in web management interface. The enterprise-class features and the 100% software-based focus make Proxmox VE the perfect choice to virtualize… Read more # Posts published in “Software” 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… 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… Here are some scripts and methods to do remote troubleshooting or running some commands in remote machines. I found they are very useful especially in a enterprise environment if you have your domain admin account. Prerequisites to run remote commands: Install .NET Framework 4.5.2 from \\shareserver\it\$Install\Scripting prerequisites\NDP452-KB2901907-x86-x64-AllOS-ENU.exe or from https://www.microsoft.com/en-ca/download/details.aspx?id=42642 Install Windows Management Framework 5.1:  copy the folder \\shareserver\it\\$Install\Scripting prerequisite\Windows Management…

VanDyke SecureCRT provides  IT pros a very user-friendly client to manage command line devices and SSH hosts with. Connecting to devices securely is one thing, and there are other products that can achieve this goal, but with SecureCRT, multiple connections can be managed in tabs to allow you to work between sessions without changing windows. Here are some my favourite settings…

Microsoft Sysinternals tool Sysmon is a service and device driver, that once installed on a system, logs indicators that can greatly help track malicious activity in addition to help with general troubleshooting. Sysinternals from Web Browser: https://live.sysinternals.com/ Basic Sysmon Usage commands: Installation: sysmon -i -accepteula [options] Extracts binaries into %systemroot% Registers event log manifest Enables default configuration

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…

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…

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…

Basically I am creating a script to build SSH connection from my Windows 7 network management computer to Cisco devices and have interactive commands with those Cisco devices. This has been done by many other network engineer. With Google’s help, I am able to get their experiences to quickly implement it in my home lab environment. It will be part…