LOGIN_LDAP(8) - System Manager’s Manual # LOGIN_LDAP(8) - System Manager’s Manual
NAME # login_ldap - contact LDAP directory server for authentication
SYNOPSIS # login_ldap [-d] [-s service] [-v name=value] user [class]
DESCRIPTION # The login_ldap utility contacts an LDAP server to authenticate a user.
Available options are:
-d
Print debugging information.
-s
Specify the service. Currently only “login” and “response” are supported. The challenge service is not supported, but it is not an error to specify this service.
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LOGIN_PASSWD(8) - System Manager’s Manual # LOGIN_PASSWD(8) - System Manager’s Manual
NAME # login_passwd - provide standard password authentication type
SYNOPSIS # login_passwd [-s service] [-v wheel=yes|no] [-v lastchance=yes|no] user [class]
DESCRIPTION # The login_passwd utility is called by login(1), su(1), ftpd(8), and others to authenticate the user with passwd-style authentication.
The user argument is the login name of the user to be authenticated.
The service argument specifies which protocol to use with the invoking program.
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LOGIN_RADIUS(8) - System Manager’s Manual # LOGIN_RADIUS(8) - System Manager’s Manual
NAME # login_radius - provide RADIUS authentication type
SYNOPSIS # login_radius [-d] [-s service] [-v name=value] user [class]
DESCRIPTION # The login_radius utility contacts a RADIUS server to authenticate a user. If no class is specified, the login class will be obtained from the password database.
When executed as the name login_‌style, login_radius will request that the RADIUS server use the authentication specified by style.
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LOGIN_REJECT(8) - System Manager’s Manual # LOGIN_REJECT(8) - System Manager’s Manual
NAME # login_reject - provide rejected authentication
SYNOPSIS # login_reject [-s service] user [class]
DESCRIPTION # The login_reject utility provides the rejection authentication class. The user name, while required, is ignored. The class name, which is optional, is also ignored. The reject authentication mechanism is intended to be used to disallow certain types of logins. For example, a class entry (see login.
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LOGIN_SKEY(8) - System Manager’s Manual # LOGIN_SKEY(8) - System Manager’s Manual
NAME # login_skey - provide S/Key authentication type
SYNOPSIS # login_skey [-s service] [-v fd=number] user [class]
DESCRIPTION # The login_skey utility is called by login(1), su(1), ftpd(8), and others to authenticate the user with S/Key authentication.
The service argument specifies which protocol to use with the invoking program. The allowed protocols are login, challenge, and response. The default protocol is login.
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LOGIN_YUBIKEY(8) - System Manager’s Manual # LOGIN_YUBIKEY(8) - System Manager’s Manual
NAME # login_yubikey - provide YubiKey OTP authentication type
SYNOPSIS # login_yubikey [-dv] [-s service] user [class]
DESCRIPTION # The login_yubikey utility is called by login(1), su(1), ftpd(8), and others to authenticate the user with the Yubico one-time password (OTP) authentication mechanism.
The options are as follows:
-d
Debug mode. Output is sent to the standard output instead of the BSD Authentication backchannel.
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LOGIN.CONF(5) - File Formats Manual # LOGIN.CONF(5) - File Formats Manual
NAME # login.conf - login class capability database
DESCRIPTION # The login.conf file describes the various attributes of login classes. A login class determines what styles of authentication are available as well as session resource limits and environment setup. While designed primarily for the login(1) program, it is also used by other programs, such as ftpd(8), to determine what means of authentication are available.
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Setusercontext,
Telnet,
Login.conf,
Su,
Readpassphrase,
Chpass,
Passwd,
Fbtab,
Environ,
Utmp,
Login LOGIN(1) - General Commands Manual # LOGIN(1) - General Commands Manual
NAME # login - log into the computer
SYNOPSIS # login [-fp] [-h hostname] [-L local-addr] [-R remote-addr] [-u username] [user]
DESCRIPTION # The login utility logs users (and pseudo-users) into the computer system.
If no user is specified, or if a user is specified and authentication of the user fails, login prompts for a user name. Authentication of users is normally done via passwords, though external authentication mechanisms may be used (see login.
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MOTD(5) - File Formats Manual # MOTD(5) - File Formats Manual
NAME # motd - message of the day
DESCRIPTION # The /etc/motd file is normally displayed by login(1) after a user has logged in but before the shell is run. It is generally used for important system-wide announcements. During system startup, a line containing the kernel version string replaces all lines up to (but not including) the first blank line of this file.
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NOLOGIN(8) - System Manager’s Manual # NOLOGIN(8) - System Manager’s Manual
NAME # nologin - politely refuse a login
SYNOPSIS # nologin
DESCRIPTION # nologin displays a message that an account is not available and exits non-zero. It is intended as a replacement shell field for accounts that have been disabled.
If the file /etc/nologin.txt exists, nologin displays its contents to the user instead of the default message.
SEE ALSO # login(1)
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