The pam_echo PAM module is for printing text messages to inform
user about special things. Sequences starting with the %
character are interpreted in the following way:
The name of the remote host (PAM_RHOST).
The name of the local host.
The service name (PAM_SERVICE).
The name of the controlling terminal (PAM_TTY).
The remote user name (PAM_RUSER).
The local user name (PAM_USER).
All other sequences beginning with % expands to the characters
following the % character.
For an example of the use of this module, we show how it may be
used to print information about good passwords:
password optional pam_echo.so file=/usr/share/doc/good-password.txt
password required pam_unix.so
This page is part of the linux-pam (Pluggable Authentication
Modules for Linux) project. Information about the project can be
found at ⟨http://www.linux-pam.org/⟩. If you have a bug report
for this manual page, see ⟨//www.linux-pam.org/⟩. This page was
obtained from the tarball Linux-PAM-1.3.0.tar.bz2 fetched from
⟨http://www.linux-pam.org/library/⟩ on 2021-08-27. If you
discover any rendering problems in this HTML version of the page,
or you believe there is a better or more up-to-date source for
the page, or you have corrections or improvements to the
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manual page), send a mail to email@example.com
Linux-PAM Manual 04/01/2016 PAM_ECHO(8)