4 files changed, 14 insertions, 4 deletions

diff --git a/custom/tinc/laeradhr.nix b/custom/tinc/laeradhr.nix
index b40e3d2a..abf309f0 100644
--- a/custom/tinc/laeradhr.nix
+++ b/custom/tinc/laeradhr.nix
@@ -4,6 +4,7 @@
 , name
 , connect ? true
 , ipConf ? {}
+, useDNS ? true
 }:
 
 
@@ -19,10 +20,10 @@ in {
       tinc-up = ''
         #!${stdenv.shell}
         ${nettools}/bin/route add -net 10.141.1.0 netmask 255.255.255.0 gw 10.141.1.1 dev $INTERFACE metric 9999
-        ${openresolv}/bin/resolvconf -m 0 -a tinc.laeradhr <<EOF
+        ${if useDNS then ''${openresolv}/bin/resolvconf -m 0 -a tinc.laeradhr <<EOF
         domain yggdrasil
         nameserver 10.141.1.1
-        EOF
+        EOF'' else ""}
       '';
       tinc-down = ''
         #!${stdenv.shell}
diff --git a/custom/tinc/yggdrasil.nix b/custom/tinc/yggdrasil.nix
index 7c028824..53b8b85e 100644
--- a/custom/tinc/yggdrasil.nix
+++ b/custom/tinc/yggdrasil.nix
@@ -4,6 +4,7 @@
 , name
 , connect ? true
 , ipConf ? {}
+, useDNS ? true
 }:
 
 
@@ -22,10 +23,10 @@ in {
       tinc-up = ''
         #!${stdenv.shell}
         ${nettools}/bin/route add -net 10.141.1.0 netmask 255.255.255.0 gw 10.141.1.1 dev $INTERFACE metric 9999
-        ${openresolv}/bin/resolvconf -m 0 -a tinc.yggdrasil <<EOF
+        ${if useDNS then ''${openresolv}/bin/resolvconf -m 0 -a tinc.yggdrasil <<EOF
         domain yggdrasil
         nameserver 10.141.1.1
-        EOF
+        EOF'' else ""}
       '';
       tinc-down = ''
         #!${stdenv.shell}
diff --git a/hel.nix b/hel.nix
index 00ccf77e..c189b723 100644
--- a/hel.nix
+++ b/hel.nix
@@ -214,6 +214,10 @@
         smtp_sasl_password_maps = texthash:/var/db/postfix/sasl_passwd
         smtp_cname_overrides_servername = no
         smtp_always_send_ehlo = yes
+
+        smtp_tls_loglevel = 1
+        smtp_dns_support_level = dnssec
+        smtp_tls_security_level = dane
       '';
     };
 
diff --git a/ymir.nix b/ymir.nix
index 66371833..24827e65 100644
--- a/ymir.nix
+++ b/ymir.nix
@@ -245,6 +245,7 @@ in rec {
     inherit (pkgs) stdenv nettools openresolv;
     name = "ymir";
     connect = false;
+    useDNS = false;
     ipConf = {
       ip4 = [ { address = "10.141.5.1"; prefixLength = 16; } ];
     };
@@ -379,6 +380,9 @@ in rec {
       #enable TLS logging to see the ciphers for outbound connections
       smtp_tls_loglevel = 1
 
+      smtp_dns_support_level = dnssec
+      smtp_tls_security_level = dane
+
       transport_maps = regexp:${pkgs.writeText "transport" ''
         /^gkleen[@\+]/ uucp:isaac
         /@(lists?|l)\./ mlmmj: