carta
imap_ssl_cert(7)

imap_ssl_cert7

Connects to an imap server using ssl and saves the server certificate into a .pem file

Usage

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

Changes

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

History

  • Debian 13 (Trixie): the text shown here
  • Debian 12 (Bookworm)
  • Debian 11 (Bullseye)
  • Debian 10 (Buster)
  • Debian 9 (Stretch)
  • Debian 8 (Jessie)
  • Debian 7 (Wheezy)

Author

Jonathan Buhacoff <[email protected]>

From monitoring-plugins-contrib 48.20250420 in Debian 13 (Trixie). Parsed by carta from the page's man source.