Debugging network connections on macOS with nettop

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Recently I’ve been learning Rust, and by far the simplest way to install that is to use Rustup . That works really well on my home computer, but I wanted to try solving a problem I had at work using Rust, so I tried it on my work Mac. My company’s network has a fairly restrictive set of firewalls, and I found that rustup was somehow failing to connect to the network to download the indexes it…

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