Note for IPV6 support for DNS and SMTP

For the ipv6 test, I’ve lost some check. To support all ipv6 services, here I list some note for the configuration.

1. Postfix:

Add inet_protocols = all to main.cf. For security, adding your ipv6 networks to mynetworks if needed.

2. BIND

Change the listen setting of ipv6 as: listen-on-v6 { ::1; }; in named.conf. And to add a ipv6 reserve zone configuration for your domains.

3. This note will be updated if I try other services successfully.

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