Monitoring the system

Overview

This page will describe ways to get information about the current state of your Mac OS X Server.

For now, just a command line grab bag:

fs_usage

The fs_usage utility presents an ongoing display of system call usage information pertaining to filesystem activity.

lsof

lsof can be used to find what processes are listening on specific TCP ports on your server. eg: sudo lsof -i tcp | grep LISTEN .

fstat

dscl

top

ps

who

last

serveradmin

service

sw_vers

system_profiler

scselect

vm_stat

netstat

netstat can be used to find established TCP/IP network connections to your server. eg. netstat -na | grep ESTABLISHED

Try using the man command followed by the command you want more information about.
eg: man top

link to a logging page

link to a network sniffing page

link to intrusion detection page