http://cypherpunk-handbook.i2p/articles/openbsd.html
OpenSMTPD has a portable version available in several Linux
distributions, but it is not included by default in any of them. 20 - OpenSSH The most popular OpenBSD software is probably OpenSSH. It's the SSH
standard used worldwide, being native and standard in all BSDs, macOS,
and even Windows/Windows Server. From routers, switches, and devices to
cloud services and hosting, they all use OpenSSH, which has
...