TCP Wrapper
TCP Wrapper is a host-based networking ACL system, used to filter network access to Internet Protocol servers on (Unix-like) operating systems such as Linux or BSD. It allows host or subnetwork IP addresses, names and/or ident query replies, to be used as tokens on which to filter for access control purposes.[1]
- TCP Wrapper [EN] @ Wikipedia
- TCP Wrapper [DE] @ Wikipedia
Documentation
- man 5 'hosts_access' [EN]
- man 5 'hosts_options' [EN]