Christophs outsourced brain https://www.hackerbruecke.net/ Sun, 12 Apr 2026 16:42:23 +0000 FeedCreator 1.8 https://www.hackerbruecke.net/_media/wiki/favicon.ico https://www.hackerbruecke.net/ https://www.hackerbruecke.net/linux/email/postfix/pfs?rev=1493132175&do=diff Postfix Perfect Forwarding Secrecy (PFS) openssl gendh -out /etc/postfix/dh_512.pem -2 512 openssl gendh -out /etc/postfix/dh_1024.pem -2 1024 postconf -e "smtpd_tls_dh1024_param_file = /etc/postfix/dh_1024.pem" postconf -e "smtpd_tls_dh512_param_file = /etc/postfix/dh_512.pem" postconf -e "smtpd_tls_eecdh_grade = strong" postconf -e "tls_preempt_cipherlist = yes" postconf -e "smtpd_tls_loglevel = 1" postconf -e "smtp_tls_loglevel = 1" postfix reload anonymous@undisclosed.example.com (Anonymous) Tue, 25 Apr 2017 14:56:15 +0000 https://www.hackerbruecke.net/linux/email/postfix/config_test?rev=1493132127&do=diff Postfix-Konfiguration testen Die Postfix-Konfigurtation sollte auf alle fälle vor der Produktivnahme ausgiebig getestet und das Verhalten beobachtet werden! Test von main.cf und master.cf Test der Datei- und Verzeichnisrechte, sowie die Syntax von main.cf und master.cf von Postfix: anonymous@undisclosed.example.com (Anonymous) Tue, 25 Apr 2017 14:55:27 +0000 https://www.hackerbruecke.net/linux/email/postfix/sasl?rev=1493132202&do=diff SASL A very conveniant way of configuring the Simple Authentication and Security Layer (SASL) is to use the Pluggable Authentication Modules (PAM), since it can use diffrent authentication sources like ldap or /etc/passwd - thus SASL is everything but simple anonymous@undisclosed.example.com (Anonymous) Tue, 25 Apr 2017 14:56:42 +0000 https://www.hackerbruecke.net/linux/email/postfix/smtp-authentication?rev=1493132210&do=diff SMTPd- / SMTP-authentication SMTPd-authentication SASL must be configured! in /etc/postfix/main.cf: smtpd_sasl_auth_enable = yes smtpd_sasl_security_options = noanonymous broken_sasl_auth_clients = yes smtpd_recipient_restrictions = ... permit_sasl_authenticated anonymous@undisclosed.example.com (Anonymous) Tue, 25 Apr 2017 14:56:50 +0000