My Tools

TraceRoute
Trace the route from this server to any other node on the net.
Usefull for diagnosing connectivity problems.

Host:

Ping
Check to see if a remote host is online.
Host:

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Whois lookup
Find out who a domain name is registered to.

Domain name:
(ie: microsoft.com or music.co.uk)

ServerCheck
Detect what operating system and server version a remote webserver is running.

Host:
eg. Host: www.microsoft.com