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Commit 40976ea1 authored by Bas van Kervel's avatar Bas van Kervel Committed by Felix Lange
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README: update attach instructions for testnet users (#14448)

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......@@ -90,15 +90,17 @@ here.
Specifying the `--testnet` flag however will reconfigure your Geth instance a bit:
* Instead of using the default data directory (`~/.ethereum` on Linux for example), Geth will nest
itself one level deeper into a `testnet` subfolder (`~/.ethereum/testnet` on Linux).
itself one level deeper into a `testnet` subfolder (`~/.ethereum/testnet` on Linux). Note, on OSX
and Linux this also means that attaching to a running testnet node requires the use of a custom
endpoint since `geth attach` will try to attach to a production node endpoint by default. E.g.
`geth attach <datadir>/testnet/geth.ipc`. Windows users are not affected by this.
* Instead of connecting the main Ethereum network, the client will connect to the test network,
which uses different P2P bootnodes, different network IDs and genesis states.
*Note: Although there are some internal protective measures to prevent transactions from crossing
over between the main network and test network (different starting nonces), you should make sure to
always use separate accounts for play-money and real-money. Unless you manually move accounts, Geth
will by default correctly separate the two networks and will not make any accounts available between
them.*
over between the main network and test network, you should make sure to always use separate accounts
for play-money and real-money. Unless you manually move accounts, Geth will by default correctly
separate the two networks and will not make any accounts available between them.*
#### Docker quick start
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