TL;DR: Configuring vsftp is a difficult work and we always meet various of errors. In this post, I am going to introduce one possible solution of error "GnuTLS error -15: An unexpected TLS packet was received." when you are using vsftpd. (more…)
Debugging is a methodical process of finding and reducing the number of bugs, or defects, in a computer program or a piece of electronic hardware, thus making it behave as expected. Debugging tends to be harder when various subsystems are tightly coupled, as changes in one may cause bugs to emerge in another.