this post was submitted on 22 Aug 2023
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A neat experiment is to configure an SSH server that has no users. It'll allow connections but it isn't possible to actually login. It'll also have a log where you can view login attempts. Within a few days of going online, your logs should be filled will tens of thousands of login attempts from IP addresses from around the world.
You should see what gets sent to web servers. All sorts of exploit strings ranging from IIS to WordPress.
Yup, in the last 24 hours, my little home server had 244 failed ssh logins and a bunch of web application attacks. If it's on the internet, it's under attack constantly. Fall behind on your patching, and you're going to get popped.
Yup. Our company gets this all the time, in addition to some impromptu basic pentesting.