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install nexus on linux ubuntu server

April 20, 2026
 |  No Comments
 |  artifacts, configuration, information, java, linux, Linux Ubuntu Server, macos, nexus, repository, ssh, ssh tunnel
From the /opt folder, use this link which points to the specific 64-bit version for Unix download decompress Once downloaded, we extract the files and […]

rings and kernel – OSDev (Operating System Development)

April 13, 2026
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 |  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
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 |  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
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 |  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

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 |  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 […]

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