Add internal IPv6 hosts, change postgresql listen addrs

Change-Id: If37d8d9e2f2f9d99aba69f3720b825f0dfd68b12
Reviewed-on: https://git.clicks.codes/c/Clicks/NixFiles/+/45
Tested-by: Skyler Grey <minion@clicks.codes>
Reviewed-by: Skyler Grey <minion@clicks.codes>
diff --git a/modules/common/networking.nix b/modules/common/networking.nix
index a19223c..1c8c029 100644
--- a/modules/common/networking.nix
+++ b/modules/common/networking.nix
@@ -3,11 +3,16 @@
     [ 80 443 25 465 587 110 995 143 993 29418 ];
 
   networking.hosts = {
+    # Internal IPv4
     "127.0.0.1" = [ "standard" ];
     "127.0.0.2" = [ "clicks" ];
     "127.0.0.3" = [ "caramels" ];
     "127.0.0.255" = [ "generic" ];
 
+    # Internal IPv6
+    "[::1]" = [ "standard" ];
+    
+    # External
     "192.168.0.4" = [ "CodedPi" ];
     "192.168.0.5" = [ "SamuelDesktop" ];
     "192.168.0.6" = [ "d2.a1.clicks" "a1d2.clicks" "a1d2" ];