1. Self-Certifying File System common files SFS is a secure, global file system with completely decentralized control. It takes NFS shares exported from localhost and transports them securely to other hosts; NFS services do not need to be exposed to network. SFS features key management and authorization separated from filesystem with key revocation separated from key distribution. SFS requires solid NFSv3 support; Linux kernel version 2.2.18, 2.4.0 or greater is required (earlier versions need patching). SFS home page is at http://www.fs.net From Debian 3.0r0 APT