install on centos 5.x using ntop 3.3.8-2.el5.rf
#yum install ntop
make sure you also rpmforge.repo
installation will try to find depedency :
chkfontpath
gettext
libFS
libXfont
libdbi
libfontenc
libpcap
perl-rrdtool
rrdtool
ruby
ruby-libs
ttmkfdir
xorg-x11-font-utils
xorg-x11-fonts-Type1
xorg-x11-xfs
wait for 5 minute, take coffe & cigarette đ
after that it will ask for password and start to setup again
try to start it
#/etc/init.d/ntop start
if you encounter error like this :
FATAL ERROR: Unrecognized/unprocessed ntop options
try to fix it :
##vi /etc/init.d/ntop
search this value : daemon $prog -d -L @/etc/ntop.conf
change it with : daemon $prog @/etc/ntop.conf -d -L
credit for tgh at tgharold
try to start it again.
You can acces it from http://server-ip:3000/