Shoutout to the time I spent a whole weekend chasing a false positive on my home server

Back in 2018, my intrusion detection system flagged a weird outbound connection from my old Ubuntu box. I thought I had a real breach and started tearing everything apart, checking logs and processes. It took me about 14 hours over two days to finally trace it back to a scheduled update check for a piece of software I forgot was even installed. The alert was technically right, but the context was totally wrong. Has anyone else wasted a ton of time on something that turned out to be totally normal?

3 comments

3 Comments

averywright27d ago

Those alerts can really get in your head. I've learned to check the simple stuff first, like cron jobs or scheduled tasks, before assuming it's a real attack. Sometimes the monitoring tools are just too sensitive for a home setup.

keithbennett2d ago

Actually, I think being too quick to blame cron jobs is how real problems slip through. That sensitivity is the whole point... you want to be alerted before something gets out of hand. Dismissing alerts as noise just trains you to ignore the system.

richard_ross27d ago

Remember when a bad config file made your own backup script look like a ransomware attack?