Doorbell System
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Our doorbell system is a client-server architecture program to improve the security of SSH. Some port scanning software such as nmap can detect the
listening port of SSH and thus the port is a target for hackers. With running the doorbell system and under its control, the listening port can be protected. Only the knocker who has the correct secret can enable the SSH service and connect the server. In this project, we have designed the doorbell protocol, implemented the doorbell system, and tested the program with various situations. We also explain the implementation of APIs used in the doorbell system and demonstrate a working system in this report. *Publication date not found.
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http://purl.org/coar/resource_type/c_93fc
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en