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Is it possible to "record" (to a text file perhaps) netstat in real time in OSX? If so, how?
Hello, I am wanting be to be able to monitor the connections coming to (and from) my computer to see exactly what is going on. Kind of like a "Wireshark" deal... but with netstat instead! :D
I'd like to be able to append it to a text file as well. I would consider myself to be an amateur Unix user that is fairly comfortable with the *nix command line interface.
Anyways, any help would be greatly appreciated! Thanks!
2 Answers
- adavielLv 77 years ago
As inclusive says. Maybe with netstat -tu to just record network connections not unix sockets
Personally, I record in pcap format with tcpdump, e.g
tcpdump -w foo.cap -s 300 not arp
which can then be re-filtered and analyzed with tcpdump, tethereal or wireshark or anything else that understands pcap. The "-s 300" limits the amount of data per packet - "-s 0" records everything (up to the maximum 1600 bytes, or more than than if you have jumbo frames), while the default is something like 64 - enough to get the headers but no content like HTTP URLs.
- 7 years ago
netstat -c | tee -a file
You could also try opening two terminals and enter `netstat -c > file` into one and `tail -f file` into the other one.
