server { listen 127.0.0.1:4000; access_log /dev/null; location / { proxy_pass http://electrs-bitcoin-mainnet; } } server { listen 127.0.0.1:4001; access_log /dev/null; location / { proxy_pass http://electrs-liquid-mainnet; } } server { listen 127.0.0.1:4002; access_log /dev/null; location / { proxy_pass http://electrs-bitcoin-testnet; } } server { listen 127.0.0.1:4003; access_log /dev/null; location / { proxy_pass http://electrs-bitcoin-signet; } } server { listen 127.0.0.1:4004; access_log /dev/null; location / { proxy_pass http://electrs-liquid-testnet; } }