linux systems engineer interview questions shared by candidates
You have a server that can pull data from the outside world, but not receive it. What do you do?
I'm not a networking guy so it took me a while to get this one right. Someone with more networking experience should be able to answer this in like two seconds.
Check your firewall, IP tables rules and determine the type and port the traffic is passing from, potentially something as simple as a unmet rule. Check log files for more information. It could be a Switch or router is blocking the traffic, run traceroute UDP and TCP to see where the clogged pipe is. Check the Transmission rates and the Received rates to see packet drops.
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