Resources
TCP/IP and Subnets
Calculating the Subnet Mask Example: We require 8 subnets and we have decided to use a Class B network address of 175.10.0.0. Using a standard Class B subnet, this would give us 1 subnet and 65,000 hosts addresses. Increasing the subnet to 255.255.192.0 will give 4 subnet and 16,000 hosts. If we want to use 8 subnets, a mask of 255.255.224.0 would be sufficient. This would give us 8,000 hosts on each subnet. Determining the valid Network Address
Opcache
Learn how OPcache can speed up web page loading by storing precompiled script bytecode, but be aware it might delay seeing changes during development. Discover how to temporarily disable it in your .htaccess file.
PuTTY & WinSCP - transferring settings
Learn how to backup and transfer your PuTTY and WinSCP settings by exporting registry keys and configuration files. This guide provides step-by-step instructions for both applications, ensuring you can easily restore settings on another computer.
Types of computer memory
Explore the various types of primary memory in computers, including cache, RAM, and ROM, and understand their functions and differences. Learn about advanced memory technologies like DDR4 RAM and EEPROM.
Useful online tools
Explore a variety of online tools for testing device resolutions, validating sitemaps, checking DNS configurations, measuring internet speed, and more. These resources can help optimize web performance and troubleshoot server issues.