hello there are two tools that come to mind first is ntop you will find it in EPEL its a great tool that will tell you what the network traffic is doing and has a nice web GUI.
another great tool is smoke ping http://oss.oetiker.ch/smokeping/ there is no RPM for it that I know of but it is an easy way to test your connectivity and graph your latency and it even does email alerting. On Wed, Mar 27, 2013 at 3:36 PM, Todd And Margo Chester <toddandma...@gmail.com> wrote: > Hi All, > > I have a Cent OS 5.x server sitting on a DSL line > acting as a firewall. I have noticed that there are > dead spots, up to a minute, every so often in their > Internet service. > > It could be a storm on someone's part, but the worst > they run is IMAP. No music; no video. > > Is there a utility I can run to map this? > > Many thanks, > -T
