Have nginx listen on ipv6 addresses as well

nginx-no-https/nginx.conf.default

@@ -24,6 +24,7 @@ http {
 
     server {
       listen 80;
+      listen [::]:80;
 
       # Load Lua variables
       set_by_lua $webmail 'return os.getenv("WEBMAIL")';

nginx/nginx.conf.default

@@ -25,6 +25,8 @@ http {
     server {
       listen 80;
       listen 443 ssl;
+      listen [::]:80;
+      listen [::]:443 ssl;
 
       # TLS configuration hardened according to:
       # https://bettercrypto.org/static/applied-crypto-hardening.pdf

nginx/nginx.conf.fallback

@@ -20,6 +20,8 @@ http {
     server {
       listen 80;
       listen 443 ssl;
+      listen [::]:80;
+      listen [::]:443 ssl;
 
       # TLS configuration hardened according to:
       # https://bettercrypto.org/static/applied-crypto-hardening.pdf