fork https://github.com/mattsta/mailwebHEADmaster

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diff --git a/ansible/roles/nginx/files/conf.d/http.custom.conf b/ansible/roles/nginx/files/conf.d/http.custom.conf
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+
+## Proxy options
+proxy_buffering           on;
+#  proxy_cache_min_uses       3;
+proxy_cache_path          /var/nginx/proxy-cache/ levels=1:2 keys_zone=cache:10m inactive=10m max_size=1000M;
+proxy_cache_valid         any 10m;
+proxy_ignore_client_abort off;
+proxy_intercept_errors    on;
+proxy_next_upstream       error timeout invalid_header;
+proxy_redirect            off;
+proxy_set_header          Host $host;
+proxy_set_header          X-Forwarded-For $remote_addr;
+proxy_connect_timeout     60;
+proxy_send_timeout        60;
+proxy_read_timeout        60;
+
+# We used to use this header when we ran dual http/https stacks to verify
+# user login pages were being only requested over https, but now we forward
+# every site to https, so we can assume our schemes are aligned to our interests
+# (as long as all our backend code stopped checking for X-Forwarded-Proto too).
+#proxy_set_header          X-Forwarded-Proto $scheme;
+
+## Size Limits
+# May need to override these (server or location blocks) if doing large uploads.
+# Setting to zero disables any size checking.
+client_body_buffer_size   16k;
+client_max_body_size      15m;
+
+# If clients send headers larger than 1k,
+# they get upgraded to large_client_header_buffers.
+client_header_buffer_size 1k;
+large_client_header_buffers 32 64k;
+
+## Timeouts
+client_body_timeout   5s;
+client_header_timeout 5s;
+keepalive_timeout     5s 5s;
+#keepalive_timeout 0;
+send_timeout          5s;
+
+## General Options
+ignore_invalid_headers   on;
+recursive_error_pages    on;
+#sendfile                 on; # enabled by top level config
+server_name_in_redirect off;
+server_tokens           off;
+
+# For per-client rate limiting, see config options at:
+# https://nginx.org/en/docs/http/ngx_http_limit_conn_module.html
+
+## Compression
+#gzip              on; # enabled by top level config
+gzip_static       on;
+gzip_buffers      16 32k;
+gzip_comp_level   6;
+gzip_http_version 1.0;
+gzip_min_length   500;
+gzip_types        text/plain application/x-javascript text/xml text/css image/x-icon application/xml application/xml+rss text/javascript application/javascript application/json image/svg+xml font/truetype font/opentype application/vnd.ms-fontobject;
+gzip_vary         on;
+gzip_proxied      any;  # required for cloudfront to receive a gzip'd response
+
+## Filesystem Operation Cache (caches fds, sizes, times, errors, etc)
+open_file_cache          max=6000 inactive=5m;
+open_file_cache_valid    2m;
+open_file_cache_min_uses 1;
+open_file_cache_errors   on;
+
+# For reading a response from disk
+output_buffers 32 32k;
+
+## Optimize Large File Transfers (can be overriden in hosts and locations)
+aio threads; # use default thread pool, create thread pools: threads=NAME;
+aio_write on; # use threaded writes for temporary files and proxied data
+
+# For files larger than 8 MB, use O_DIRECT instead of sendfile()
+directio 8m;
+directio_alignment 512; # if using XFS, set as 4096
+
+## Access Log Caches
+open_log_file_cache max=64 inactive=20s min_uses=1 valid=1m;
+
+log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
+                  '$status $body_bytes_sent "$http_referer" '
+                  '"$http_user_agent" "$http_x_forwarded_for"';