fix(discovery): makes pong send only IP without hostname #2279
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asoto-iov
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rskj-core/src/test/java/co/rsk/net/discovery/PeerExplorerTest.java
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fmacleal
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Good job. I don't have any specific remark and I think that what @asoto-iov commented already cover an important part.
I am just wondering if makes sense some more small tests on the places I have commented below. Let me know your opinion, it doesn't prevent the approval.
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squashme: makes safer test
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Vovchyk
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As RSK user I want IP addresses (instead of DNS names) to be sent to other peers in response to FIND_NODE peer discovery message
Description
Instead of DNS hostnames a node always sends IP addresses in response to the FIND_NODE peer discovery message
Motivation and Context
As of now, in the peer discovery protocol, when a peer asks for neighbours by sending FIND_NODE message in response it gets a sub list of other discovered peers in a network. Sometimes, instead of IP addresses of remote peers that list might include DNS names resolved via reverse DNS lookup in a context of the peer that returns that response. In some cases this might lead to issues when the reverse DNS resolution happens in different network contexts, for instance, when inside AWS VPC an IP can be resolved to ip-10-10-133-54.us-west-2.compute.internal, but outside that host name would make no sense.
How Has This Been Tested?
Unit test included.
Types of changes
Checklist: