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Simplify DNS instructions
See this review comment:
https://gitlab.com/simple-nixos-mailserver/nixos-mailserver/-/merge_requests/342#note_2231232814:
> host is always installed on every nixos system
> 98dece1bf5/nixos/modules/tasks/network-interfaces.nix (L1426)
I'm not sure this is a great idea though: what about people who use nix
as a package manager?
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@ -133,7 +133,7 @@ You can check this with
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::
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$ nix-shell -p bind --command "host -t mx example.com"
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$ host -t mx example.com
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example.com mail is handled by 10 mail.example.com.
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Note that it can take a while until a DNS entry is propagated.
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@ -154,7 +154,7 @@ You can check this with
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::
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$ nix-shell -p bind --command "host -t TXT example.com"
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$ host -t TXT example.com
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example.com descriptive text "v=spf1 a:mail.example.com -all"
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Note that it can take a while until a DNS entry is propagated.
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@ -186,7 +186,7 @@ You can check this with
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::
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$ nix-shell -p bind --command "host -t txt mail._domainkey.example.com"
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$ host -t txt mail._domainkey.example.com
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mail._domainkey.example.com descriptive text "v=DKIM1;p=<really-long-key>"
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Note that it can take a while until a DNS entry is propagated.
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@ -206,7 +206,7 @@ You can check this with
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::
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$ nix-shell -p bind --command "host -t TXT _dmarc.example.com"
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$ host -t TXT _dmarc.example.com
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_dmarc.example.com descriptive text "v=DMARC1; p=none"
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Note that it can take a while until a DNS entry is propagated.
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