![]() ![]() pp.) On MacOS, if all NICs are turned off, pinging localhost will of course still work - however, some applications will query the OS about the network status and refuse to try and connect if the OS tells them all NICs are off. (I know I know, don't use it in a professional environment etc. A quick and dirty way of checking if the network stack is functional is to ping the loopback. Any software can fail and that includes the network stack. You might have an application that needs network access so it interfaces with the endpoints 'network stack'. Rule #6: Homework / Educational Questions must display effort. Rule #3: No BlogSpam / Traffic re-direction. Rule #2: No Certification Brain Dumps / Cheating. ![]() r/NetworkingJobs /r/sysadmin /r/ITCareerQuestions /r/CSCareerQuestions /r/ccna /r/juniper /r/jncia /r/ccnp /r/jncis /r/ccdp /r/jncip /r/ccie /r/ccde /r/cisco /r/jncie /r/HomeNetworking /r/TechSupport /r/Network /r/ipv6 /r/networkautomation /r/outages Related IRC Channels
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