user9901: Assume I'm running a full node and that I've relayed some transactions. As a full node owner, can I pinpoint the true source of the transactions I've relayed?

user6256: In the bitcoin data directory there is a file called debug.log.
This file as noted in the bitcoin documentation:

May contain IP addresses and transaction ID's.

This does not indicate that a transaction originated from a specific IP address but it does indicate that your node received a transaction from that IP address.  If someone were to have a wide enough view of the network and controlled enough nodes then it could be inferred that the creator of a specific transaction was using a specific IP at the time.  This is not always considered conclusive evidence at this time.

9901: <p>Assume I'm running a full node and that I've relayed some transactions. As a full node owner, can I pinpoint the true source of the transactions I've relayed?</p>
 6256: <p>In the bitcoin data directory there is a file called <code>debug.log</code>.
This file as noted in the bitcoin documentation:</p>

<blockquote>
  <p>May contain IP addresses and transaction ID's.</p>
</blockquote>

<p>This does not indicate that a transaction originated from a specific IP address but it does indicate that your node received a transaction from that IP address.  If someone were to have a wide enough view of the network and controlled enough nodes then it could be inferred that the creator of a specific transaction was using a specific IP at the time.  This is not always considered conclusive evidence at this time.</p>
