How did all of these ports get open on my machine??

[Fahrvergnuugen]

I just did a port scan on my G4:

Port Scanning host: 127.0.0.1

Open Port: 21 ftp
Open Port: 22 ssh
Open Port: 23 telnet
Open Port: 80 http, www-http, www
Open Port: 113 auth, tap, ident
Open Port: 139 netbios-ssn
Open Port: 427 svrloc
Open Port: 548 afpovertcp
Open Port: 554 rtsp
Open Port: 901 swat
Open Port: 1033
Open Port: 1220
Open Port: 3306
Open Port: 7070
Open Port: 8000
Open Port: 8001


21, 22, 23, 80, 113 and 554 I was expecting [ie, I intenionally set those services up]

What the heck are all these other ports and how do I shut them off??

 

[uoba]

to get a firewall on there!

Especially if your ftp and telnet ports are open (make sure ftp access is off in System Prefs in this case).

Either Impasse (the one I use, from glucose), Brickhouse would do the job (they implement OSX's own inbuilt firewall, ipfw.

 

[Fahrvergnuugen]

no. The last thing I want is a firewall. I WANT ftp and telnet to be open, as I said before, I intentionally opened these ports. its all the other ones that I'm confused about...they were not open when I first installed OSX....

 

[macmasta]

Open Port: 548 afpovertcp

this is the port for AFP (Apple File Protocoll). if you don't like to have this one opened up, just turn off file Personal File Sharing in the sharing prefs tab.

 

[michaelsanford]

Yeah exactly get a firewall and open those ports. If you configure ipfw in the Sys Prefs Sharing tab it'll keep your services open but close the rest.

PS What did you use to port scan ?

 

[Darkshadow]

Network Utility will do! /Utilities/Network Utility - just put in localhost for the host to scan.

 

[michaelsanford]

Wow, I use nmap so much I forgot about Network Utility

 

[scruffy]

to find out what programs have what ports open, you could use:
lsof -i
You have to run that command as root to see every program, so that would be:
sudo lsof -i