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IAP-W420/W422 UserManual
ORingIndustrial Networking Corp
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A simple ping of the server checks to see if it’s responding.If there are serious server
problems, a ping will either time out, or run very slowly. If you are able to find the server via
DNS, but can’t get a ping response from it, this would point to an error with either the physical
server, or a fault in the network that connects the client and server.
Traceroute
Traceroutewill try to follow the path that connects the client and server. In the case where the
client can findbut is unable to connect to your server, the Traceroutewill help locate the cause
of the error. This test is useful for identifying when specific data centers or CDN locations are
having issues. Note: Traceroute is an imperfect test because many nodes in the network will
not respond tothe trace route calls, and those nodes will show as timeouts.
Nslookup
Nslookupwill identify where the URL for the server points to. This command will check to
determine what IP address the name server is pointing to for your URL. This tool will help
identify if the name servers encounters conflicts, propagation errors, or specific locations that
have trouble finding the server.