MIT krb5 is a free implementation of Kerberos 5. Kerberos is a network authentication protocol. It centralizes the authentication database and uses kerberized applications to work with servers or services that support Kerberos allowing single logins and encrypted communication over internal networks or the Internet. Download (HTTP): Download (FTP): Download size: &mitkrb-size; Estimated Disk space required: &mitkrb-buildsize; Estimated build time: &mitkrb-time; (services servers only), (for xdm based logins) and (alternative for krb5kdc password database) Some sort of time synchronization facility on your system (like ) is required since Kerberos won't authenticate if there is a time difference between a kerberized client and the KDC server.