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| Thread | Thread Starter | Forum | Replies | Last Post |
| Ports | zsujith | HP-UX | 1 | 12-31-2007 12:45 PM |
| Ports | walsh_j | UNIX for Dummies Questions & Answers | 4 | 07-18-2007 11:25 AM |
| ports??? | eloquent99 | IP Networking | 4 | 02-24-2003 01:56 PM |
| Ports | Ralf | UNIX for Dummies Questions & Answers | 2 | 12-10-2002 08:07 AM |
| Ports | Yaki | UNIX for Dummies Questions & Answers | 6 | 10-10-2002 09:07 AM |
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Just wondering if anyone knows of any good on-line documentation on TCP/UDP Ports. Basically i want to know how to check if they are in use, learn how to close them, etc...
Thanks... |
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Try this link (Rutgers University) and do a search for lsof (either on your system or on Goggle ) - lsof is a program that lists open files (a port is a file in UNIX)
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tcp/ip
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Quickest way to see if a port is in use is to simply use the 'netstat' command and grep for the port you are interested in. Also note that port alias names can be configured in '/etc/services' thus if a port does not appear to be in use check if an alias exists and grep accordingly.
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