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communicate 2 PCs via public IP with TCP or UDP

May 23, 2025
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 |  console, information, linux, macos, message, messaging, nc, package, port, protocol, public_ip, server
nc is a command-line tool called Netcat. It’s a very versatile network utility used to read and write data over network connections, using both the […]

Using Mosquitto, implementing the MQTT protocol

May 6, 2025
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 |  message, messaging, package, protocol
MQTT is generally faster than AMQP due to its lightweight design and focus on publish/subscribe messaging. In general, MQTT can be faster than TCP in […]

Testing a Java-injected Springboot service

April 20, 2025
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 |  information, java, package, spring-boot
You must have the following dependencies, Junit is included, do not add it. you must write down the main class: you must write down the […]

redundant junit dependency

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 |  maven, package, spring-boot
if you have: If you have the following Junit dependency in another version or the same one, you can remove it

sudo apt update & sudo apt full-upgrade

January 20, 2025
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 |  linux, package
sudo apt update is a necessary prerequisite step before running sudo apt full-upgrade If you run sudo apt full-upgrade without having previously run sudo apt […]

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