OpenFire download
http://igniterealtime.org/downloads/index.jsp
How to uninstall Openfire from a Mac:
sudo rm -rf /usr/local/openfire
sudo rm -rf /Library/PreferencePanes/Openfire.prefPane
sudo rm -rf /Library/LaunchDaemons/org.jivesoftware.openfire.plist
sudo rm -rf /Library/Receipts/Openfire.pkg
간단하게 봉쥬르를 통해서 메시지를 전송할 수 있다.(로컬 네트워크 내에서)
http://apple.stackexchange.com/questions/97714/send-short-message-to-another-mac-on-the-lan