Software skarnet.org nsss What is it ? nsss is an implementation of a subset of the pwd.h, group.h and shadow.h family of functions, performing user database access on Unix systems. Usually, user database access via getpwnam() and similar function is provided by the system's libc. However, not all libcs implement a configurable backend for the user/group database. For instance the musl libc, on Linux, only supports the standard /etc/passwd mechanism; it also supports the nscd protocol but this i...