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diff --git a/contrib/wallet-rekey-periodic.8 b/contrib/wallet-rekey-periodic.8 new file mode 100644 index 0000000..0cd04f3 --- /dev/null +++ b/contrib/wallet-rekey-periodic.8 @@ -0,0 +1,215 @@ +.\" Automatically generated by Pod::Man 2.28 (Pod::Simple 3.29) +.\" +.\" Standard preamble: +.\" ======================================================================== +.de Sp \" Vertical space (when we can't use .PP) +.if t .sp .5v +.if n .sp +.. +.de Vb \" Begin verbatim text +.ft CW +.nf +.ne \\$1 +.. +.de Ve \" End verbatim text +.ft R +.fi +.. +.\" Set up some character translations and predefined strings. \*(-- will +.\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left +.\" double quote, and \*(R" will give a right double quote. \*(C+ will +.\" give a nicer C++. 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Always turn off hyphenation; it makes +.\" way too many mistakes in technical documents. +.if n .ad l +.nh +.SH "NAME" +wallet\-rekey\-periodic \- Periodically rekey all system keytabs +.SH "SYNOPSIS" +.IX Header "SYNOPSIS" +\&\fBwallet-rekey-periodic\fR [\fIkeytab\fR ...] +.SH "DESCRIPTION" +.IX Header "DESCRIPTION" +\&\fBwallet-rekey-periodic\fR is a wrapper around wallet-rekey that adds some +additional functionality: rekeying of all keytabs at known locations on +the system, skipping keytabs that are marked unchanging, rekeying any +keytabs with \s-1DES\s0 keys immediately but otherwise only rekeying once a month +based on a random interval based on the hostname, and cleaning up old +keys. +.PP +It's primarily meant to be run daily from cron, but can also be run +manually from the command line to rekey specific keytab files. +.PP +\&\fBwallet-rekey-periodic\fR will, for each keytab, find a list of all +principals in that keytab and see if any of them still have \s-1DES\s0 keys. If +so, it will always attempt to rekey that keytab. If not, it will only do +so, for a given system, once every 30 days (based on a hash of the +hostname). It will also always skip keytabs that contain any principals +that wallet says are unchanging, since otherwise the current wallet-rekey +implementation will duplicate the existing keys. +.PP +On Heimdal systems, this command will remove keys older than a week before +rekeying the keytab. This relies on \fBktutil\fR functionality that's +available only in Heimdal, so \s-1MIT\s0 Kerberos keytabs will slowly grow unless +they're manually pruned. This will be fixed in a later release of +\&\fBwallet-rekey\fR. +.PP +If no keytabs are given on the command line, \fBwallet-rekey-periodic\fR will +rekey a set of system keytabs described below under \*(L"\s-1FILES\*(R"\s0. Otherwise, +it will rekey the keytabs given. +.SH "FILES" +.IX Header "FILES" +.IP "\fI/etc/keytabs/*\fR" 4 +.IX Item "/etc/keytabs/*" +.PD 0 +.IP "\fI/etc/krb5.keytab\fR" 4 +.IX Item "/etc/krb5.keytab" +.IP "\fI/etc/webauth/keytab\fR" 4 +.IX Item "/etc/webauth/keytab" +.PD +The default list of locations checked for rekeyable keytabs. If run with +no command-line arguments, \fBwallet-rekey-periodic\fR will try to rekey +every principal in each keytab found at any of these paths. +.SH "AUTHOR" +.IX Header "AUTHOR" +Russ Allbery <eagle@eyrie.org> +.SH "COPYRIGHT AND LICENSE" +.IX Header "COPYRIGHT AND LICENSE" +Copyright 2013, 2014 The Board of Trustees of the Leland Stanford Junior +University +.PP +Permission is hereby granted, free of charge, to any person obtaining a +copy of this software and associated documentation files (the \*(L"Software\*(R"), +to deal in the Software without restriction, including without limitation +the rights to use, copy, modify, merge, publish, distribute, sublicense, +and/or sell copies of the Software, and to permit persons to whom the +Software is furnished to do so, subject to the following conditions: +.PP +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. +.PP +\&\s-1THE SOFTWARE IS PROVIDED \*(L"AS IS\*(R", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE.\s0 +.SH "SEE ALSO" +.IX Header "SEE ALSO" +\&\fIktutil\fR\|(8), \fIwallet\fR\|(1), \fIwallet\-rekey\fR\|(1) |