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TICKET ARCHIVE -> Mac Osx 10.3 , Terminal And a Nosy Network Administrator
cyberraga - Mar 29, 2005 - 5:18 pm
My network administrator has been bragging about how once he finishes installing everything for the new server, he'll be able to snoop around on everyone's computers undetected. Is there a way to tell if someone is connected to my computer via Terminal?
Captain Code - Mar 29, 2005 - 5:32 pm
One way to see all open network connections is to use the netstat command in terminal. This will also list all UNIX file streams near the end of the output. You will get a list of the local address and port as well as the remote address and port. Sometimes it'll list the protocol if it's on a known port. Such an example is when you are browsing a website it'll list xxx.xxx.xxx.xxx.http as the remote host where http is the protocol used to connect to the website.
The easiest way to block any connections from the outside is to use the built in firewall.
In OS X 10.3 go in the Sharing control panel and select the Firewall tab. From there you can turn on the firewall and open any incoming ports you want to or need open.
You can get a program called LittleSnitch from here
http://www.obdev.at/products/littlesnitch/download.html
What this program does is monitor every program that connects to the internet or network and ask you if you want to allow the application to make the connection.
You can tell it to remember your applications so you won't be asked each time you use it. The good thing about this is if the administrator has installed some program running in the background you can know about it if it tries to connect to a server.
One thing that may stop you from doing this is if you aren't an admin on your machine or if your machine boots off of the server.
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Captain Code -- Tech Support Agent
The easiest way to block any connections from the outside is to use the built in firewall.
In OS X 10.3 go in the Sharing control panel and select the Firewall tab. From there you can turn on the firewall and open any incoming ports you want to or need open.
You can get a program called LittleSnitch from here
http://www.obdev.at/products/littlesnitch/download.html
What this program does is monitor every program that connects to the internet or network and ask you if you want to allow the application to make the connection.
You can tell it to remember your applications so you won't be asked each time you use it. The good thing about this is if the administrator has installed some program running in the background you can know about it if it tries to connect to a server.
One thing that may stop you from doing this is if you aren't an admin on your machine or if your machine boots off of the server.
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Captain Code -- Tech Support Agent
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