References:
http://www.linuxhomenetworking.com/wiki/index.php/Quick_HOWTO_:_Ch05_:_Troubleshooting_Linux_with_syslog#.VZo882Oo90U
http://www.ciscopress.com/articles/article.asp?p=426638
http://www.ciscopress.com/articles/article.asp?p=426638&seqNum=2