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  • postfix+自签证书,实现加密传输

    说明:当前在centos 6.x环境下:

    cd /etc/pki/tls/misc

    ./CA -newca

    ..... 生成根证书

    openssl req -new -nodes -keyout mailkey.pem -out mailreg.pem -days 365

    ......生成一个SMTP服务器用的证书请求

    rm -f /etc/pki/CA/index.txt

    touch /etc/pki/CA/index.txt

     openssl ca -out mail_signed_cert.pem -infiles mailreg.pem

    ......用mailreg.pem签发SMTP服务器用证书

    mkdir -p /etc/postfix/tls

    cp /etc/pki/CA/cacert.pem /etc/postfix/tls/

    cp mail_signed_cert.pem /etc/postfix/tls/

    cp mailkey.pem /etc/postfix/tls/

    编辑/etc/postfix/main.cf,增加/修改配置:

    smtp_tls_CApath = /etc/ssl/certs
    smtpd_use_tls = yes
    smtpd_tls_ask_ccert = yes
    smtpd_tls_key_file = /etc/postfix/tls/mailkey.pem
    smtpd_tls_cert_file = /etc/postfix/tls/mail_signed_cert.pem
    smtpd_tls_CAfile = /etc/postfix/tls/cacert.pem
    smtp_use_tls = yes
    smtp_tls_key_file = /etc/postfix/tls/mailkey.pem
    smtp_tls_cert_file = /etc/postfix/tls/mail_signed_cert.pem
    smtp_tls_CAfile = /etc/postfix/tls/cacert.pem
    smtp_tls_security_level = may

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  • 原文地址:https://www.cnblogs.com/amoy9812/p/7365527.html
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