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Operating Systems Linux Google Chrome OS Do we need many Operating Systems? Post 302520649 by a sandwhich on Sunday 8th of May 2011 11:15:03 PM
Old 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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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)
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