Each site in a UUCP network has a Permissions file that is used to control the access that remote systems have to data and programs on the local system. This file is used to specify, among other options, the areas in the file system that a remote system can read or write from, the commands that the remote system can run on the local system, and a different public directory than the default. Those options are specified as:

READ

Indicates which directories can be read. By default, this is the home directory of user uucp (/usr/spool/uucppublic).

WRITE

Indicates which directories uucico can write to. By default, this is /usr/spool/uucppublic, the home directory of user uucp.

NOREAD

Indicates that files in the specified directories cannot be read. If a directory is specified by both READ and NOREAD, files in that directory cannot be read. The public directory can always be read (even if specified on NOREAD).

NOWRITE

Indicates that files in the specified directories cannot be written to. If a directory is specified by both WRITE and NOWRITE, files in that directory cannot be written to. The public directory can always be written to (even if specified on NOWRITE).

PUBDIR

Indicates the public directory. By default, this is the home directory of user uucp (/usr/spool/uucppublic).

COMMANDS

Indicates the commands that the remote system can execute on your system. If more than one command is specified, the command names are separated with a colon (:). For example, COMMANDS=uucp:ls. If all commands are prohibited, the COMMANDS option is not used.