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Are you familiar with port knocking? My servers will only open port 22, or some other port, after two specific ports have been knocked on in order. It completel
by dotancohen 1y ago
Are you familiar with port knocking? My servers will only open port 22, or some other port, after two specific ports have been knocked on in order. It completely eliminates the log files getting clogged.
- davsti4 1y agoI've used that solution in the past. What happens when the bots start port knocking?
- GuinansEyebrows 1y agoFail2ban :)
- dotancohen 1y agoThe bots have been port scanning me for decades. They just don't know which two ports to hit to open 22 for their IP address. Simply iterating won't get then there, and fail2ban doesn't afford them much opportunity to probe.