transfer data monitor

I would currently monitoring data transfer on my server(debian).
what software do you recommend?

From serverfault JuanPablo

• Your question is extremely vague, but I'll make some assumptions and offer a suggestion.

  If you're talking about monitoring network bandwidth usage on a linux system, IPTraf is very nice, and should be available for installation through your distro's package repository.

  If my answer misses the mark, please edit your question in include what OS you're running and what type of "data transfer" you're looking to monitor.

  c10k Consulting : Im with ErikA - IPTraf or IFTop
  From ErikA

• The answer for a single host is similar to the answer for many hosts. Setup SNMP on the host, gather the data using your favorite tool.

  From Zoredache

• Juan as others mentioned your question is very vague, but I find people often are looking for something like iftop to show the current input and output traffic rates and where they are going. If it's not installed you can get it with sudo apt-get install iftop. If that or the other answers don't suit your needs you probably need to me much more explicit in your question.

  From Caleb