Appendix A: BlockScout Explorer

To use Blockscout explorer follow this repo: https://github.com/poanetwork/blockscout-terraform​
On the bootnode for blockscout, add/replace the following sections in the node.toml file. Restart poa-parity.service
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    [rpc]
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    apis = ["web3","eth","net", "parity", "traces"]
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    processing_threads = 2
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    server_threads = 2
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    cors=["all"]
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​
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    [footprint]
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    tracing = "on"
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    pruning = "archive"
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    fat_db = "on"
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​
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    [websockets]
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    #max_connections = 1000
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    apis = ["web3","eth","net","parity", "pubsub", "traces"]
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Also, add the following section into the /etc/nginx/conf.d/default.conf file to enable websockets.
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    location /ws {
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      proxy_set_header Host localhost:8546;
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      proxy_set_header X-Real-IP $remote_addr;
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      proxy_set_header Content-Type application/json;
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      #add_header Access-Control-Allow-Origin "*";
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      #add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
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​
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      if ($request_method = 'OPTIONS') {
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        add_header Access-Control-Allow-Headers "Origin, X-Requested-With, Content-Type, Accept";
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        add_header Access-Control-Allow-Methods "GET, POST, OPTIONS";
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        add_header Access-Control-Allow-Origin "*";
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        add_header Access-Control-Max-Age 600;
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        add_header Content-Type 'text/plain charset=UTF-8';
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        add_header Content-Length 0;
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        return 204;
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      }
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      proxy_pass http://localhost:8546;
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      proxy_read_timeout 3600s;
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      proxy_send_timeout 3600s;
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      proxy_http_version 1.1;
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      proxy_set_header Upgrade $http_upgrade;
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      proxy_set_header Connection "upgrade";
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    }
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When configuring blockscout, you need to assign a public domain name to this node (make sure 443 port is open), e.g. https://blockscout-node-trace-ws.nowhere and use it for blockscout configuration, along with wss://blockscout-node-trace-ws.nowhere/ws for web-sockets.

13) Finalize Deployment

Appendix B: Launching Bridge UI

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