Generating SSL, tips and conclusion

Just now generate your SSL certificate and key
# cd /etc/postfix/
# openssl genrsa 1024 > mail-key.pem
# chmod 400 mail-key.pem
# openssl req -new -x509 -nodes -sha1 -days 365 -key mail-key.pem > mail-cert.pem



I tested and got into production everything was done here.

Packages used:


  • postfix.i386 2:2.3.3-2.1.centos.mysql_pgsql
  • dovecot.i386 1.0.7-7.el5
  • mysql-server.i386 5.0.77-4.el5_5.4
  • httpd.i386 2.2.3-43.el5.centos.3
  • squirrelmail.noarch 1.4.8-5.el5.centos.10
  • postfixadmin-2.3.2



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