http://nkkn5gol4qp6ymwomrjeyiwqrxkthjfqvw7k6jlpafcvslwvbj52caqd.onion/ABOUT.html
It contains rare manuals, books on Linux, BSD, AIX (coming soon) and other UNIX-like OS, as well as materials on information security. The main audience is UNIX enthusiasts, pentesters and those who value minimalism and functionality. The site operates in the Tor network, emphasizing the philosophy of freedom and openness.