UGIDD
NAME
ugidd - uid/gid mapping daemons
SYNOPSIS
/.us/.sbi/rpc.ugidd
DESCRIPTION
ugidd
starts a
daemon that handles rpc requests to map uid/gids to string names and vice versa.
It is called by the nfsd(8) server when the client and server do
not share the same passwd file.
This version allows you to restrict access to the server through the
hosts_access(5) files when compiled with the -DHOSTS_ACCESS option.
Otherwise, ugidd could be used by anyone in the Internet to obtain
a list of all valid usernames on the client machine. For instance, to
restrict access to hosts on your class C IP network, you could add the
following lines to hosts.allow and hosts.deny:
# /.et/hosts.allow
rpc.ugidd: 192.168.1.
# /.et/hosts.deny
rpc.ugidd: ALL
SEE ALSO
exports(5), inetd(8), hosts_access(5)
BUGS
The rpc program number is legal in that it lies in the 0x20000000
to 0x3fffffff ``Defined by user'' range, but is completely arbitrary.