$ telnet -4 ysul.nasqueron.org 25 Trying 212.83.187.132... Connected to ysul.nasqueron.org. Escape character is '^]'. 220 ysul.nasqueron.org ESMTP Postfix HELO orin.dereckson.drake 250 ysul.nasqueron.org QUIT 221 2.0.0 Bye Connection closed by foreign host. $ telnet ysul.nasqueron.org 25 Trying 2001:470:1f13:9e1:0:c0ff:ee:1...
Description
Description
Event Timeline
This comment was removed by dereckson.
Comment Actions
Configuration change
Per http://www.postfix.org/IPV6_README.html:
diff --git a/postfix/main.cf b/postfix/main.cf index 33f51c1..32a5629 100644 --- a/postfix/main.cf +++ b/postfix/main.cf @@ -672,6 +672,8 @@ sample_directory = /usr/local/etc/postfix # readme_directory: The location of the Postfix README files. # readme_directory = /usr/local/share/doc/postfix -inet_protocols = ipv4 +inet_protocols = ipv4, ipv6 meta_directory = /usr/local/libexec/postfix shlib_directory = /usr/local/lib/postfix + +smtp_bind_address6 = 2001:470:1f13:9e1:0:c0ff:ee:1
Mitigated result
Listens to localhost, not world currently:
Ysul
$ sockstat | grep postfix | grep ':25' postfix smtpd 92724 6 tcp4 *:25 *:* postfix smtpd 92724 7 tcp6 *:25 *:* $ telnet -6 localhost 25 Trying ::1... Connected to localhost. Escape character is '^]'. 220 ysul.nasqueron.org ESMTP Postfix HELO localhost 250 ysul.nasqueron.org QUIT 221 2.0.0 Bye Connection closed by foreign host.