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<H2><A NAME="SECTION00332000000000000000">Logins from terminals</A></H2>
<P>
Logins from terminals (via serial lines) and the console (when not
running X) are provided by the <tt>getty</tt><A NAME="331"> </A> program. <tt>init</tt><A NAME="333"> </A>
starts a separate instance of <tt>getty</tt><A NAME="335"> </A> for each terminal for
which logins are to be allowed. <tt>getty</tt><A NAME="337"> </A> reads the username
and runs the <tt>login</tt><A NAME="339"> </A> program, which reads the password. If
the username and password are correct,
<tt>login</tt><A NAME="341"> </A> runs the shell. When
the shell terminates, i.e., the user logs out, or when <tt>login</tt><A NAME="343"> </A>
terminated because the username and password didn't match,
<tt>init</tt><A NAME="345"> </A> notices this and starts a new instance of <tt>getty</tt><A NAME="347"> </A>.
The kernel has no notion of logins, this is all handled by the
system programs.
<A NAME="197"> </A>
<A NAME="198"> </A>
<A NAME="199"> </A>
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<I>Lars Wirzenius <BR>
Sat Nov 15 02:32:11 EET 1997</I>
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