Tento instalar o ntop mas da o seguinte erro, ja verifiquei a instalação do openssl, rrdtool, libpcap, gdbm, ja fiz update.
o erro que da na hora da instalação
[root@Firewall-Lauro ~]# yum install ntop
Loading "priorities" plugin
Setting up Install Process
Parsing package install arguments
Resolving Dependencies
--> Running transaction check
---> Package ntop.i386 0:3.3.8-1.el5.rf set to be updated
--> Processing Dependency: librrd_th.so.2 for package: ntop
--> Finished Dependency Resolution
Error: Missing Dependency: librrd_th.so.2 is needed by package ntop
[root@Firewall-Lauro ~]#