Skip to content

  • Home

Category: configuration

rings and kernel – OSDev (Operating System Development)

April 13, 2026
 |  No Comments
 |  C, configuration, information, kernel
The central kernel (or kernel land) necessarily runs on Ring 0 In x86 architecture, “rings” are levels of CPU privilege. Ring 0 has complete control […]

BIOS and UEFI

April 12, 2026
 |  No Comments
 |  bios, configuration, firmware, information, linux, Linux Ubuntu Server, macos, uefi
BIOS (legacy mode – old) The BIOS is so old that when it boots, the processor is in “Real Mode”. It can only see 1 […]

windows administrator: Run command as administrator (elevation)

April 8, 2026
 |  No Comments
 |  command, configuration, console, information, windows
If when running a command in CMD Windows it says “Requires elevation” or “Run as administrator” example: To run the command as administrator, you must […]

redirect port and IP to another port and IP in macOS

 |  No Comments
 |  command, configuration, information, macos, public_ip, router
search for network interface in macOS or The name of a network interface through which you have wifi/ethernet internet can be called “en0” Install Socat […]

be able to ping one’s own PC/server (from internet)

April 6, 2026
 |  No Comments
 |  command, configuration, information, internet, linux, Linux Ubuntu Server, macos, server, windows
By default, in the router’s “firewall” settings, option “Block Anonymous Internet Requests” is enabled and blocks ping You need to disable it and save it […]

Posts pagination

1 2 3 Next

Categories

Theme By SKT Minimal