On top of that, if you're in a secure, or segmented network, you may run into blocked ports. Wouldn't it be great to figure out where a request is getting bogged down? You can get some of this information in other ways, but actually seeing what's going down the wire can be immensely useful. 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. 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. Linux system administration skills assessment.
A guide to installing applications on Linux.Download RHEL 9 at no charge through the Red Hat Developer program.
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