<p>The recommended way is to use the <code>-connect</code> option. You can do <code>-connect=0</code> or <code>-noconnect</code> (they mean the same thing) and Bitcoin Core will not try to automatically connect to any other node.</p>

CC BY-SA 4.0
2019-07-26T17:54:45.543Z
works like a charm. added connect=0 in the config file
Nick
CC BY-SA 4.0
2019-07-26T17:10:00.707Z
2019-07-26T17:10:00.707Z
Ava Chow
<p>Suppose I make a locked wallet with 50000 pre-generated addresses.</p>

<p>As long as I researched, <strong>only way I can collect those 50000 addresses using RPC and "getnewaddress"</strong>. Feel free to correct me.</p>

<p>I understand this will took several hours or days, so I can set this up on some VPS and let it run.</p>

<p>For this I do not need blockchain to be synchronized.</p>

<p>How can I start bitcoind without blockchain synchronization?</p>

<p>I am thinking about "connect" option or testnet, but both looks like a hack.</p>

CC BY-SA 4.0
2019-07-26T19:17:12.773Z
You could also run `dumpwallet`, which would have the addresses in the resulting dump - although at this point, you might want to look into a small script to generate an HD wallet, it will likely go a lot faster.
Raghav Sood
CC BY-SA 4.0
2019-07-26T20:02:47.237Z
dumpwallet requires passphrase.
Nick
<bitcoind><network><synchronization>
How can I start bitcoind without blockchain synchronization?
Nick
# How can I start bitcoind without blockchain synchronization?

(Asked by: username_0 on 2019-07-26)

Suppose I make a locked wallet with 50000 pre-generated addresses.

As long as I researched, **only way I can collect those 50000 addresses using RPC and "getnewaddress"**. Feel free to correct me.

I understand this will took several hours or days, so I can set this up on some VPS and let it run.

For this I do not need blockchain to be synchronized.

How can I start bitcoind without blockchain synchronization?

I am thinking about "connect" option or testnet, but both looks like a hack.

**Tags:** bitcoind, network, synchronization

> **Comments:**
> **username_1**: You could also run `dumpwallet`, which would have the addresses in the resulting dump - although at this point, you might want to look into a small script to generate an HD wallet, it will likely go a lot faster.  
> **username_0**: dumpwallet requires passphrase.  

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## 1 answers

### Answer by username_2 on 2019-07-26. Score: 2 | Accepted answer

The recommended way is to use the `-connect` option. You can do `-connect=0` or `-noconnect` (they mean the same thing) and Bitcoin Core will not try to automatically connect to any other node.

> **Comments:**
> **username_0**: works like a charm. added connect=0 in the config file  

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