

Name lookups and other dependent services need to function correctly. One service reaches out to another to get some bit of information, then that one reaches out to something else, and so on. Stick around, and we'll talk about a few ways you can snoop on what's running across the wire, or up and down your application stack. Beyond verifying the basics, connectivity, ports, and running services, sometimes you just need to see what's going through the network.
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You're in the middle of troubleshooting some weird network or service issue, things just aren't right, the ports are open, the service is listening, but something is still off.

A guide to installing applications on Linux.Download RHEL 9 at no charge through the Red Hat Developer program.
