This shows how secure and rock-solid FreeBSD is. Makura no Soshi was running FreeBSD 4.11 as fil ter ing net work bridge, and thinking of upgrading, he’s compared the pros and cons of m0n0wall, pfSense and NanoBSD. In the end he decided to go with NanoBSD.
Thus I chose NanoBSD. YMMV, and I would not recommend it for anyone not familiar with BSD. But with four other BSD servers the addition al maintenance effort is really small; possibly even easier than with any non-standard or web-based configuration.
Read the full post here: M0n0wall vs pfSense vs NanoBSD