man in the middle – Redirect Ip Address (not dns) with Router

I have an IOT System that works the following way:
The IOT bridge makes a TCP Handshake with a server in china with a static ip address 47.255…
(bridge sends syn the china server sends syn ack and then bridge ack)

Then the bridge sends MQTT Connect Command to the chinese server
(This includes a client id, user name, and a password)
The server just sends an accept back.

After that I can use a smartphone app to control the bridge:
The smartphone sends a MQTT packet to the china server
and the server sends the exact same packet to the bridge
(Only the source/destination ips and mac addresses get changed from server to bridge)

I want to remove the chinese server completely from this equation and want to simulate it with my own pc.

So my pc should get every packet that gets send to the chinese ip.
The bridge is in wifi so I have to change this in the router.

Are there easy ways to redirect ip addresses with your router?
Or is it possible to directly modify the packets with the router and change the ip address of the packet.

The Bridge doesn’t use dns to find the chinese ip address so I can’t use a pihole or similar
dns spoofing tools.

And if this works I guess my pc has to spoof it’s source ip address in the packages to the chinese server or the tcp protocol won’t accept the connection with different destinations–>sources.

output – Why does vout sometimes not have address?

I am trying to parse all transactions.

I found that some transactions do not have addresses in their vout.

There are two situations that vout does not have addresses.

The first one is the miner reward.

For example, run this:

bitcoin-cli getrawtransaction 4bec1175f9682fc10118bbb146d1def8fd82fdffdf27da8beea327469f79b2b0 true.

Here is the result:

{

  "txid": "4bec1175f9682fc10118bbb146d1def8fd82fdffdf27da8beea327469f79b2b0",

  "hash": "4bec1175f9682fc10118bbb146d1def8fd82fdffdf27da8beea327469f79b2b0",

  "version": 1,

  "size": 135,

  "vsize": 135,

  "weight": 540,

  "locktime": 0,

  "vin": [

    {

      "coinbase": "048521131a028d00",

      "sequence": 4294967295

    }

  ],

  "vout": [

    {

      "value": 50.25892368,

      "n": 0,

      "scriptPubKey": {

        "asm": "04994b2548a865ad7e786c691bb9cac7d15afc60b8b4500e24e79ec1cd910830b7dd799defdfdc1a7136e4976d2086daa319a7923f633987905a86aaece612ab9b OP_CHECKSIG",

        "hex": "4104994b2548a865ad7e786c691bb9cac7d15afc60b8b4500e24e79ec1cd910830b7dd799defdfdc1a7136e4976d2086daa319a7923f633987905a86aaece612ab9bac",

        "type": "pubkey"

      }

    }

  ],

  "hex": "01000000010000000000000000000000000000000000000000000000000000000000000000ffffffff08048521131a028d00ffffffff011008912b01000000434104994b2548a865ad7e786c691bb9cac7d15afc60b8b4500e24e79ec1cd910830b7dd799defdfdc1a7136e4976d2086daa319a7923f633987905a86aaece612ab9bac00000000",

  "blockhash": "00000000000009e63c0dc84756b1f535b0c8d7c51b849e60b6ce893a9c6a4d51",

  "confirmations": 506698,

  "time": 1308295622,

  "blocktime": 1308295622

}

You can see there is no addresses field in the first and only object of vout.

The second one is not a miner reward.

For example, run this:

bitcoin-cli getrawtransaction 4caea993e7caa859840a8ebac457c31420bb4fb79b528d870556c5a2eec5da7a true.

Here is the result:

{

  "txid": "4caea993e7caa859840a8ebac457c31420bb4fb79b528d870556c5a2eec5da7a",

  "hash": "4caea993e7caa859840a8ebac457c31420bb4fb79b528d870556c5a2eec5da7a",

  "version": 1,

  "size": 234,

  "vsize": 234,

  "weight": 936,

  "locktime": 0,

  "vin": [

    {

      "txid": "c245fbf8c03de1ab3372f72cafbd40ef47882fc0aba02c424e70cb4b44c65241",

      "vout": 0,

      "scriptSig": {

        "asm": "304502200eee831084af8de8ebac477d3c56b5a4d428522df0ccaed41ede77570eac27a5022100af5786d35cdef15a97a775542217a7e9ee85b06d4f07c50bab768bce189e3d9e[ALL]",

        "hex": "48304502200eee831084af8de8ebac477d3c56b5a4d428522df0ccaed41ede77570eac27a5022100af5786d35cdef15a97a775542217a7e9ee85b06d4f07c50bab768bce189e3d9e01"

      },

      "sequence": 4294967295

    }

  ],

  "vout": [

    {

      "value": 115.00000000,

      "n": 0,

      "scriptPubKey": {

        "asm": "OP_DUP OP_HASH160 208bbec311f62e7881ee746d7f3a6ba097203815 OP_EQUALVERIFY OP_CHECKSIG",

        "hex": "76a914208bbec311f62e7881ee746d7f3a6ba09720381588ac",

        "reqSigs": 1,

        "type": "pubkeyhash",

        "addresses": [

          "13y62oZbRtF4SJx2sezC3PvvDBfXx42jJb"

        ]

      }

    },

    {

      "value": 2.00000000,

      "n": 1,

      "scriptPubKey": {

        "asm": "0405d71f20e493a0721e705944e7151a1d7c1b9a9cd546cc44c2f348fa6e27b588ddfdd7b3e52c9af208598f3b2ac519af9d7ee78cea4f237ee5028020e33633c9 OP_CHECKSIG",

        "hex": "410405d71f20e493a0721e705944e7151a1d7c1b9a9cd546cc44c2f348fa6e27b588ddfdd7b3e52c9af208598f3b2ac519af9d7ee78cea4f237ee5028020e33633c9ac",

        "type": "pubkey"

      }

    }

  ],

  "hex": "01000000014152c6444bcb704e422ca0abc02f8847ef40bdaf2cf77233abe13dc0f8fb45c2000000004948304502200eee831084af8de8ebac477d3c56b5a4d428522df0ccaed41ede77570eac27a5022100af5786d35cdef15a97a775542217a7e9ee85b06d4f07c50bab768bce189e3d9e01ffffffff02001374ad020000001976a914208bbec311f62e7881ee746d7f3a6ba09720381588ac00c2eb0b0000000043410405d71f20e493a0721e705944e7151a1d7c1b9a9cd546cc44c2f348fa6e27b588ddfdd7b3e52c9af208598f3b2ac519af9d7ee78cea4f237ee5028020e33633c9ac00000000",

  "blockhash": "000000000000098444048edc683a41d26be975e302019a51a7ca3c2cc21d4813",

  "confirmations": 506676,

  "time": 1308309497,

  "blocktime": 1308309497

}

You can see there is no addresses field in the second object of vout.

Please explain this or provide some keyword for me to search! Thank you guys!

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bitcoin core – How to Send BTC from my address to another using private key

I am working on project of ICO where i am generating dynamic address for Bitcoin receive purpose, I have private key for my account how i can send it to other address which API will be helpful to me.

I am not using any bitcoin wallet, I don’t think wallet is required for this.

I am not sure about this, can anyone guide me on this. I am a new to
bitcoin.

To what extent would Bitcoin be private without address reuse? [migrated]

Let’s say Bitcoin had these rules from the start:

  • An address with balance cannot be a transaction output
  • An address can only be the input to one transaction

This would prevent address re-use. To what extent would this make Bitcoin anonymous?

Why does gmail send confirmation mail to address of alias?

When I’m trying to create an alias in gmail, it sends a confirmation email to that address (to the alias that I’m trying to create).
And then of course it says that there is no such address. Of course, it’s just an alias that I’m actually trying to create.

When is the address indicated on a passport being used?

My French passport indicates my physical address. What’s the point of it? I.e., when is the address indicated on a passport being used?

web development – IP address doesn’t change to the domain name

I am facing this problem for quite a long time. When I enter the IP address of my website it take me to the website but the IP address doesn’t change to the Domain Name. I am hosting my website on a Virtual Machine on Google Cloud. I am using the Google Cloud service as a hosting service for my website. Can someone help me in solving this problem?

funds – Blockchain address holding coin

I had a transfer sent to my blockchain and the amount appears in my balance but when I try to send funds from my account, says insufficient balance. I suspect it’s because one of my addresses appears to be holding the funds. All my other “used” addresses show 0 on the right hand side except for this address which shows 0.26 btc. Here is a screenshot of the transaction. The address is: 1Dducw2u43v5ftWDzjMfCyjHB9Lwd2hbNa. Can anyone tell me how to get these funds to be available on my blockchain account?

enter image description here

How to check if a given address belong to an exchange

A few exchanges publicize their hot and cold wallets, but currently, as far as I’m aware, no exchange publishes a full list.

This may change as FATF’s Recommendation 16 adoption grows, but may still be limited to closed access networks among exchanges.

Beyond that, for most services, it is not very hard to determine if a used address belongs to an exchange – most exchanges tend to follow fairly easy to identify sweeping patterns to move funds between receiver, hot, and cold wallets. Many block explorers tag various addresses to exchanges, in addition to paid coin monitoring services.