oidentd_masq.conf - oidentd IP masquerading/NAT configuration file.
If you are using IP masquerading or NAT, oidentd can optionally return
a username for connections from other machines. Support for this is
specified by calling oidentd with the -m (or --masq) flag and by
creating an /etc/oidentd_masq.conf file.
oidentd can also forward requests for an IP masqueraded connection to
the machine from which connection originates by way of the -f option.
This will only work if the host to which the connection is forwarded is
running oidentd with the -P (proxy) flag, or if the host’s ident daemon
will return a valid reply regardless of the input supplied by and the
address of the host requesting the info (some ident daemons for windows
do this, maybe others).
<IP Address|Hostname>[/<Mask>] <Ident Response> <System Type>
The first field contains the IP address or the hostname of a machine
that IP masquerades through the machine on which oidentd runs. The
mask parameter can be either a network mask or a mask in CIDR notation.
A mask of 24 is equivalent to 255.255.255.0, a mask of 16 is equivalent
to 255.255.0.0, etc.
The second field specifies the reply that oidentd will return for
lookups to the host matching the IP address specified in the first
The third field specifies the operating system the machine matching the
first parameter is running.
<Host>[/<Mask>] <Ident Response> <System Type>
192.168.1.1 someone UNIX
192.168.1.2 noone WINDOWS
192.168.1.1/32 user1 UNIX
192.168.1.0/24 user3 UNIX
192.168.0.0/16 user4 UNIX
somehost user5 UNIX
192.168.1.0/255.255.255.0 user6 UNIX
Ryan McCabe <firstname.lastname@example.org>