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Old 10-10-2008
shuhang2 shuhang2 is offline
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How to determine if a host is connected to the Internet in Unix?

How to determine if a host is connected to the Internet in Unix ?
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Old 10-10-2008
anitemp anitemp is offline
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As a simple check, you can ping Google. The command tries to look up the IP address from the name. If it successfully does, you'll see the IP address of google.com in the ping output. Then the command tries to send ICMP packets to the destination IP address. If you see replies from google.com then you are on the internet. Otherwise you have probably entered incorrect DNS address or default gateway. Use 'route' and 'nslookup' commands to see your settings.
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