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Tag: ssl
Generating an SSL CSR and key
To generate an SSL certificate signing request (CSR) with key you can do this:
openssl req -nodes -newkey rsa:2048 -keyout bla.key -out bla.csr
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Installing a commercial SSL certificate in Zimbra
Edit: now in 2020, with Zimbra 8, and Startcom out of business, things have changed a bit. So, here are the steps now, for a Sectigo certificate (and referring to their directory structure):
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Testing an OpenSSL connection
Simple command to test an SSL connection:
openssl s_client -connect meel.halfgaar.net:993 -ssl3
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Enabling authentication and SSL for Postfix on Debian
I used this document as main source. This blogpost is also useful.
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Changing an apache virtual host to ssl
To change a virtual host in apache to ssl:
#Redirect all normal traffic to the https site.
RewriteEngine on
RewriteRule ^/(.*) https://%{HTTP_HOST}/$1 [L,R]
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Generating key and certificate for courier-imap
To create a self-signed certificate for courier-imap:
openssl req -new -x509 -days 3650 -nodes -out imapd.pem -keyout imapd.pem
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Generating a self-signed SSL certificate
openssl req -nodes -newkey rsa:2048 -keyout server.key -out server.csr
openssl x509 -req -days 3650 -in server.csr -signkey server.key -out server.crt
Read More » Show fields in a SSL certificate with openssl
To use OpenSSL to get the certficate information (source):
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