![]() The first tool I look at has changed its name recently from what to bandwhich and has had a bit of a facelift. In this article, I demonstrate two tools that allow me to diagnose a misbehaving application on one occasion and odd routing behavior on another. Even if you have elaborate Elasticsearch-Logstash-Kibana (ELK)-based logging and metrics boasting gloriously detailed dashboards, if all you want is to SSH into a server and check which IP address is doing what over which interface, then the ELK stack is overkill.
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