imap_ssl_cert - connects to an IMAP server using SSL and saves the server certificate into a .pem file

# NAME

imap_ssl_cert - connects to an IMAP server using SSL and saves the server certificate into a .pem file

# SYNOPSIS

     imap_ssl_cert -H imap.server.com > server_ca_file.pem
     imap_ssl_cert -?
     imap_ssl_cert --help

# DEPENDENCIES

This utility requires the following perl modules to be installed:

Getopt::Long Mail::IMAPClient IO::Socket::SSL Net::SSLeay

# OPTIONS

--timeout <seconds>

  Abort with critical status if it takes longer than <seconds> to connect to the IMAP server. Default is 60 seconds. The difference between timeout and critical is that, with the default settings, if it takes 45 seconds to connect to the server then the connection will succeed but the plugin will return CRITICAL because it took longer than 30 seconds. Also known as: -t <seconds>

--hostname <server>

  Address or name of the IMAP server. Examples: mail.server.com, localhost, 192.168.1.100 Also known as: -H <server>

--port <number>

  Service port on the IMAP server. Default is 143. If you use SSL, default is 993. Also known as: -p <number>

--verbose

  Display additional information. Useful for troubleshooting.

  Also known as: -v

--version

  Display plugin version and exit. Also known as: -V

--help

  Display this documentation and exit. Also known as: -h

--usage

  Display a short usage instruction and exit.

# EXAMPLES

## Print the server's SSL certificate chain

     $ perl imap_ssl_cert.pl -H imap.server.com > ca_file.pem
     $ cat ca_file.pem

     -----BEGIN CERTIFICATE-----
     MIID1zCCAr+gAwIBAgIQPr3bVk0SkuXygjxgA7EVGDANBgkqhkiG9w0BAQUFADA8
     [...snip...]
     0FF4warjskrfqaVtWeIV58LJheaM4cPJkc2M
     -----END CERTIFICATE-----

     $ openssl x509 -in ca_file.pem -text

# SEE ALSO

http://en.wikipedia.org/wiki/X.509 http://en.wikipedia.org/wiki/Privacy_Enhanced_Mail http://tools.ietf.org/html/rfc1422 http://search.cpan.org/~mikem/Net-SSLeay-1.42/lib/Net/SSLeay.pm http://search.cpan.org/~plobbes/Mail-IMAPClient-3.29/lib/Mail/IMAPClient.pod

# CHANGES

     Fri Nov 11 03:38:13 AST 2011
     + version 0.1

# AUTHOR

Jonathan Buhacoff <jonathan@buhacoff.net>

# COPYRIGHT AND LICENSE

     Copyright (C) 2011 Jonathan Buhacoff

     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 3 of the License, or
     (at your option) any later version.

     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.

     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <http://www.gnu.org/licenses/>;.

     http://www.gnu.org/licenses/gpl.txt