05-09-2011
Yes, yes we do. wikipedia.org/wiki/List_of_operating_systems
wikipedia.org/wiki/List_of_Linux_distributions
And that doesn't cover many of the smaller experimental os's and the like. It adds variety. It is like asking why are there so many different types of cars or breads. They all drive and taste differently. Also they are tailored to suit their purpose. I know there are several that have spawned from the medical industry.
Last edited by a sandwhich; 05-09-2011 at 12:20 AM..
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LEARN ABOUT DEBIAN
imap_ssl_cert
IMAP_SSL_CERT(7) User Contributed Perl Documentation IMAP_SSL_CERT(7)
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
perl v5.14.2 2012-07-02 IMAP_SSL_CERT(7)