uucpd - UUCP server
This command is available with the uucp software installation option.
Refer to for information on how to install optional software.
uucpd is the server for supporting UUCP connections over networks.
uucpd is invoked by inetd(8C) when a UUCP connection is established
(that is, a connection to the port indicated in the "uucp" service
specification; see services(5)), and executes the following protocol:
1) The server prompts with login:. The uucico(8C) process at the
other end must supply a username.
2) Unless the username refers to an account without a password, the
server then prompts with Password:. The uucico process at the
other end must supply the password for that account.
If the username is not valid or is valid but refers to an account that
does not have /usr/lib/uucp/uucico as its login shell, or if the pass-
word is not the correct password for that account, the connection is
dropped. Otherwise, uucico is run, with the user ID, group ID, group
set, and home directory for that account, with the environment vari-
ables USER and LOGNAME set to the specified username, and with a -u
flag specifying the username. Entries are made in /var/adm/wtmp and
/var/adm/lastlog for the username.
/var/adm/lastlog time of last login
services(5), inetd(8C), uucico(8C)
All diagnostic messages are returned on the connection, after which the
connection is closed.
An error occurred while reading the username.
An error occurred while reading the password.
The username is invalid or refers to an account with a login
shell other than /usr/lib/uucp/uucico, or the password is not
the correct password for the account.
12 June 1988 UUCPD(8C)