IN.UUCPD(8) Maintenance Commands and Procedures IN.UUCPD(8)
NAME
in.uucpd, uucpd - UUCP server
SYNOPSIS
/usr/sbin/in.uucpd [
-n]
DESCRIPTION
in.uucpd is the server for supporting
UUCP connections over networks.
in.uucpd is invoked by
inetd(8) when a
UUCP connection is
established, that is, a connection to the port indicated in the
"uucp" service specification, and executes the following protocol.
See
services(5):
1. The server prompts with
login:. The
uucico(8) 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
password 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
variables
USER and
LOGNAME set to the specified username, and with a
-u flag specifying the username. Unless the
-n flag is specified,
entries are made in
/var/adm/utmpx,
/var/adm/wtmpx, and
/var/adm/lastlog for the username.
in.uucpd must be invoked by a user
with appropriate privilege (usually root) in order to be able to
verify that the password is correct.
SECURITY
in.uucpd uses
pam(3PAM) for authentication, account management, and
session management. The
PAM configuration policy, listed through
/etc/pam.conf, specifies the modules to be used for
in.uucpd. Here is
a partial
pam.conf file with entries for
uucp using the UNIX
authentication, account management, and session management module.
uucp auth requisite pam_authtok_get.so.1
uucp auth required pam_dhkeys.so.1
uucp auth required pam_unix_auth.so.1
uucp account requisite pam_roles.so.1
uucp account required pam_projects.so.1
uucp account required pam_unix_account.so.1
uucp session required pam_unix_session.so.1
If there are no entries for the
uucp service, then the entries for
the "other" service will be used. If multiple authentication modules
are listed, then the peer may be prompted for multiple passwords.
FILES
/var/adm/utmpx accounting
/var/adm/wtmpx accounting
/var/adm/lastlog time of last login
SEE ALSO
svcs(1),
pam(3PAM),
pam.conf(5),
services(5),
attributes(7),
pam_authtok_check(7),
pam_authtok_get(7),
pam_authtok_store(7),
pam_dhkeys(7),
pam_passwd_auth(7),
pam_unix_account(7),
pam_unix_auth(7),
pam_unix_session(7),
smf(7),
inetadm(8),
inetd(8),
svcadm(8),
uucico(8)DIAGNOSTICS
All diagnostic messages are returned on the connection, after which
the connection is closed.
user read An error occurred while reading the username.
passwd read An error occurred while reading the password.
Login incorrect. 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.
NOTES
The
in.uucpd service is managed by the service management facility,
smf(7), under the service identifier:
svc:/network/uucp
Administrative actions on this service, such as enabling, disabling,
or requesting restart, can be performed using
svcadm(8).
Responsibility for initiating and restarting this service is
delegated to
inetd(8). Use
inetadm(8) to make configuration changes
and to view configuration information for this service. The service's
status can be queried using the
svcs(1) command.
The
pam_unix(7) module is no longer supported. Similar functionality
is provided by
pam_authtok_check(7),
pam_authtok_get(7),
pam_authtok_store(7),
pam_dhkeys(7),
pam_passwd_auth(7),
pam_unix_account(7),
pam_unix_auth(7), and
pam_unix_session(7).
August 12, 2004 IN.UUCPD(8)
