Install LetsEncrypt in CentOS 7

certbot deprecated support for CentOS 7, so new version of certbot-auto script won’t work on CentOS 7. To install certbot (letsencrypt command line tool), run

To run it, use command

See LetsEncrypt […]

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View SSL certficate Details

To view certificate details

For web server

Or

IMAP via SSL

POP3 via SSL

SMTP via SSL

SMTP via TLS/StartTLS

See SSL […]

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Convert SSL certificate into PFX format

To convert SSL certficiate into PFX format, run

Example for SSL from namecheap/ssls

[…]

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Nginx Proxy SSL Verification

When using Nginx as reverse proxy, you may need to handle SSL verification request. Passing this request to backend server may not do any good as back end servers normally only handle application. To hanlde SSL validation request, use following Nginx Configuration

Now restart Nginx

You can get SSL with following letsencrypt command […]

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