Sun Microsystems Sun Workstation 100U System Manager's Manual page 373

UUCP Installation
UUCP Implementation Description
[3]
which login name is
~ b~;a
particular remote
c~mputer,
• • •
(4)
whether a remote computet. should
be
called back In order to confirm Its Identity.
Each line in USERFILE has
t~e
format:
login,sys
[c)
path-na'Ine [path-name]
login is the login name for a user or the remote computer,
'11'
is the system name for a remote computer,
c is the optional call-back required flag,
path-name is a path-name prefix that is acceptable for 'II'.
The constraints are implemented as follows.
[1]
When the program is obeying a command stored on the local machine (MASTER mode)
the path-names allowed are those given on the first line in the USERFILE that has the
login name of the user who entered the command. If no such line is found, the first line
with a nul/login name is used.
[2]
When the program is responding to a command from a remote machine (SLAVE mode)
the path-names allowed are those given on the first line in the file that has the system
name that matches the remote machine. If no such line is found, the first one with a
null system name is used.
[3]
When a remote computer logs in, the login name that it uses mull appear in the USER-
FILE. There may be several lines with the same login name but one of them must
either have the name of the remote system or must contain a null system name.
[4]
If the line matched in ([3]) contains a "c", the remote machine is called back before any
transactions take place.
Ezample,
The line:
u,m /usr/xyz
allows machine m to login with name u and request the transfer of files whose names start with
/ ulr/
zyz.
The line:
dan, /usr/dan
allows the ordinary user dan to issue commands for files whose name starts with
IUlrl
dan.
(Note that this type of restriction is seldom used.)
The lines:
u,m /usr/xyz /U!$rlspool
u, / nsr / spool
allows any remote machine to login witk name u. If its system name is not m, it can only ask
to transfer files whose names start with lusrl,pool. If it is system m, it can send files from path
/ u,r/
'Zuz
as well as / u,r/ 'pool.
The lines:
14 7
January
1984