Lets encrypt certbot delete
Show cert namescertbot certificates
Delete standalone certificate with:certbot delete --cert-name CERT_NAME
certificate
SSL certificate information
openssl x509 -text -noout -in
Check certificate at Dovecotopenssl s_client -connect <>:993 -showcerts
iRedmail certificate with Lets Encrypt
Quick hack on how to set certificates right on iRedmail
Lets encrypt renew test
Run in order to check whether automatic certification renew process will succeed.
certbot-auto renew --dry-runcertbot certonly --dry-run --webroot -w /var/www/html -d domain.namecertbot --nginx certonly --dry-run
Let's Encrypt certificate
Show installed cerificates and their domain namescertbot certificates
Issue a certificate bud do not install itcertbot certonly
Obtain and install to nginxcertbot --nginx -d example.com -d www.example.com
lets encrypt certificate
How to create Lets encrypt certificate for Debian + apache + dovecot + postfix
We can download the certbot-auto Let’s Encrypt client to the /usr/local/sbin directory by typing:
Lets Encrypt
Create rsa key and crt
openssl genrsa -des3 -rand /etc/hosts -out smtpd.key 2048
chmod 600 smtpd.key
openssl req -new -key smtpd.key -out smtpd.csr
openssl x509 -req -days 3650 -in smtpd.csr -signkey smtpd.key -out smtpd.crt
openssl rsa -in smtpd.key -out smtpd.key.unencrypted