Nginx notes

/etc/nginx/sites-available/default settings

General Server

server {
    limit_conn addr 20;
    limit_req zone=perip burst=40 nodelay;
    limit_req zone=perbot burst=8;
    limit_req_status 429;

    location / {
        proxy_buffering on;
        proxy_buffers 8 16k;
    }
}

Mediawiki Server

server {
    limit_conn addr 25;
    limit_req zone=perbot burst=5;
    limit_req_status 429;


    location / {
        proxy_request_buffering off;
        proxy_buffering on;
        limit_req zone=perapi burst=80 nodelay;
    }
}

Tile Server / Peertube-like Server

server {
    limit_conn addr 60;                                         # Tiles / media need higher connection caps and higher rate; we use highthroughput
    limit_req zone=highthroughput burst=200 nodelay;
    limit_req zone=perip burst=40 nodelay;                      # still apply basic perip for other endpoints
    limit_req_status 429;
    location / {
        limit_req zone=highthroughput burst=400 nodelay;        # give very high throughput for tiles
        proxy_cache tile_cache;                                 # strongly recommended: cache tiles in nginx
        proxy_cache_valid 200 1h;
        proxy_buffering on;
        expires max;
        add_header Cache-Control "public, max-age=31536000, immutable";
    }
}