'\" te
.\" Copyright 1987, 1989 by the Student Information Processing Board of the Massachusetts Institute of Technology.  For copying and distribution information,  please see the file kerberosv5/mit-sipb-copyright.h.
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.TH warn.conf 4 "30 Mar 2005" "SunOS 5.11" "File Formats"
.SH NAME
warn.conf \- Kerberos warning configuration file
.SH SYNOPSIS
.LP
.nf
/etc/krb5/warn.conf 
.fi

.SH DESCRIPTION
.sp
.LP
The \fBwarn.conf\fR file contains configuration information specifying how
users will be warned by the \fBktkt_warnd\fR daemon about ticket expiration. In
addition, this file can be used to auto-renew the user's Ticket-Granting Ticket
(TGT) instead of warning the user. Credential expiration warnings and
auto-renew results are sent, by means of syslog, to \fBauth.notice\fR.
.sp
.LP
Each Kerberos client host must have a \fBwarn.conf\fR file in order for users
on that host to get Kerberos warnings from the client. Entries in the
\fBwarn.conf\fR file must have the following format:
.sp
.in +2
.nf
\fIprincipal\fR [renew[:\fIopt1\fR,...\fIoptN\fR]] syslog|terminal \fItime\fR
.fi
.in -2

.sp
.LP
or:
.sp
.in +2
.nf
\fIprincipal\fR [renew[:\fIopt1\fR,...\fIoptN\fR]] mail \fItime\fR [\fIemail address\fR]
.fi
.in -2

.sp
.ne 2
.mk
.na
\fB\fIprincipal\fR\fR
.ad
.RS 17n
.rt  
Specifies the principal name to be warned. The asterisk (\fB*\fR) wildcard can
be used to specify groups of principals.
.RE

.sp
.ne 2
.mk
.na
\fB\fBrenew\fR\fR
.ad
.RS 17n
.rt  
Automatically renew the credentials (TGT) until renewable lifetime expires.
This is equivalent to the user running \fBkinit\fR \fB-R\fR.
.sp
The renew options include:
.sp
.ne 2
.mk
.na
\fB\fBlog-success\fR\fR
.ad
.RS 15n
.rt  
Log the result of the renew attempt on success using the specified method
(\fBsyslog\fR|\fBterminal\fR|\fBmail\fR).
.RE

.sp
.ne 2
.mk
.na
\fB\fBlog-failure\fR\fR
.ad
.RS 15n
.rt  
Log the result of the renew attempt on failure using the specified method
(\fBsyslog\fR|\fBterminal\fR|\fBmail\fR). Some renew failure conditions are:
TGT renewable lifetime has expired, the KDCs are unavailable, or the cred cache
file has been removed.
.RE

.sp
.ne 2
.mk
.na
\fB\fBlog\fR\fR
.ad
.RS 15n
.rt  
Same as specifing both \fBlog-success\fR and \fBlog-failure\fR.
.RE

.LP
Note -
.sp
.RS 2
If no log options are given, no logging is done.
.RE
.RE

.sp
.ne 2
.mk
.na
\fB\fBsyslog\fR\fR
.ad
.RS 17n
.rt  
Sends the warnings to the system's syslog. Depending on the
\fB/etc/syslog.conf\fR file, syslog entries are written to the
\fB/var/adm/messages\fR file and/or displayed on the terminal.
.RE

.sp
.ne 2
.mk
.na
\fB\fBterminal\fR\fR
.ad
.RS 17n
.rt  
Sends the warnings to display on the terminal.
.RE

.sp
.ne 2
.mk
.na
\fB\fBmail\fR\fR
.ad
.RS 17n
.rt  
Sends the warnings as email to the address specified by \fIemail_address\fR.
.RE

.sp
.ne 2
.mk
.na
\fB\fItime\fR\fR
.ad
.RS 17n
.rt  
Specifies how much time before the \fBTGT\fR expires when a warning should be
sent. The default time value is seconds, but you can specify \fBh\fR (hours)
and \fBm\fR (minutes) after the number to specify other time values.
.RE

.sp
.ne 2
.mk
.na
\fB\fIemail_address\fR\fR
.ad
.RS 17n
.rt  
Specifies the email address at which to send the warnings. This field must be
specified only with the \fBmail\fR field.
.RE

.SH EXAMPLES
.LP
\fBExample 1 \fRSpecifying Warnings
.sp
.LP
The following \fBwarn.conf\fR entry

.sp
.in +2
.nf
\fB* syslog 5m\fR 
.fi
.in -2
.sp

.sp
.LP
specifies that warnings will be sent to the syslog five minutes before the
expiration of the \fBTGT\fR for all principals. The form of the message is:

.sp
.in +2
.nf
jdb@ACME.COM: your kerberos credentials expire in 5 minutes
.fi
.in -2
.sp

.LP
\fBExample 2 \fRSpecifying Renewal
.sp
.LP
The following \fBwarn.conf\fR entry:

.sp
.in +2
.nf
* renew:log terminal 30m
.fi
.in -2

.sp
.LP
\&...specifies that renew results will be sent to the user's terminal 30
minutes before the expiration of the TGT for all principals. The form of the
message (on renew success) is:

.sp
.in +2
.nf
myname@ACME.COM: your kerberos credentials have been renewed
.fi
.in -2

.SH FILES
.sp
.ne 2
.mk
.na
\fB\fB/usr/lib/krb5/ktkt_warnd\fR\fR
.ad
.RS 28n
.rt  
Kerberos warning daemon
.RE

.SH ATTRIBUTES
.sp
.LP
See \fBattributes\fR(5) for descriptions of the following attributes:
.sp

.sp
.TS
tab() box;
cw(2.75i) |cw(2.75i) 
lw(2.75i) |lw(2.75i) 
.
ATTRIBUTE TYPEATTRIBUTE VALUE
_
Interface StabilityEvolving
.TE

.SH SEE ALSO
.sp
.LP
\fBkinit\fR(1), \fBkdestroy\fR(1), \fBktkt_warnd\fR(1M), \fBsyslog.conf\fR(4),
\fButmpx\fR(4), \fBattributes\fR(5), \fBkerberos\fR(5), \fBpam_krb5\fR(5)
.SH NOTES
.sp
.LP
The auto-renew of the TGT is attempted only if the user is logged-in, as
determined by examining \fButmpx\fR(4).