You may add one or more logins to your system so incoming uucp (uucico) requests from different remote machines can be handled differently. The Systems(4bnu) file on each remote machine should have an entry for for your machine. The chat script for each entry should specify the local login name and password that select the required behavior.
The default entries in the /etc/passwd file are shown here.
uucp:x:5:5:0000-uucp(0000):/usr/lib/uucp nuucp:x:10:10:0000-uucp(0000):/var/spool/uucppublic:/usr/lib/uucp/uucicoThe entry for nuucp shows that a login by nuucp is answered by /usr/lib/uucp/uucico.
The home directory is /var/spool/uucppublic. The ``x'' indicates that the encrypted password is stored in /etc/shadow.
Notice that the standard shell is not given to the nuucp login. The shell that nuucp receives is the uucico daemon that controls the conversation when a remote machine logs in to your machine.
The assigning of passwords for the uucp and nuucp logins is left up to the administrator. If the password for the access login is changed for security reasons, make certain that the remote machines that are a part of your network are properly notified of the change.