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Who's got the other end of this unix socketpair?
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How to know what program is listening on a given port?
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Python socket bind to any IP?
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Linux: How to get a machine's IP address?
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How to tell which interface the socket received the message from?
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Checking network connection
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How do I check for a network connection?
84919
Fastest method to determine my PC's IP address (Windows)
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How do I know what IPs my server have?
67564
Command-line tool for finding out who is locking a file
71448
How to acquire a remote host fingerprint that is not in known_hosts?
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How to get the client IP address in PHP
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Grepping logs for IP addresses
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Finding local IP addresses using Python's stdlib
154003
Socket.IO - how do I get a list of connected sockets/clients?
131763
Get names of devices on the network
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Log of mounted/unmounted devices in Unix