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# cat /System/Library/LaunchDaemons/ssh.plist
... <string>com.openssh.sshd</string> ... <key>SockServiceName</key> <string>2222</string> ...
# ls /Library/LaunchDaemons/
[~ ] $ sudo launchctl load -w /Library/LaunchDaemons/org.macports.Squid.plist [~ ] $ sudo launchctl unload -w /Library/LaunchDaemons/org.macports.Squid.plist
[~ ] $ sudo launchctl list [~ ] $ sudo launchctl stop org.macports.Squid [~ ] $ sudo launchctl start org.macports.Squid