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April 21, 2010 17:24
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List what ports are in use on OS X
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| # List what ports are in use on OS X | |
| sudo lsof -iTCP -sTCP:LISTEN -P |
Wow, sudo lsof -iTCP -sTCP:LISTEN -P is alot faster and works great.
@kennethreitz: that's why I posted it - doing the filtering in lsof rather than on its output can be enormously faster (particularly if you use the host/port filtering syntax - e.g. sudo lsof -iTCP:80 -sTCP:LISTEN -P for HTTP) and I've tended to encounter that in situations where it really mattered on busy servers.
I've long been a fan of sudo netstat -tunlp, but I don't know if all of those options are cross-platform or Linux only.
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@priteau FTW!