Hi all.

I'm using Cacti to monitor my VPS.
All seems to work great, except for the fail2ban monitoring and I think the memory monitor.

See this:

free -m
                     total       used       free     shared    buffers     cached
Mem:             424        324        100          0         20        182
-/+ buffers/cache:        121        303
Swap:            255          27        228

The free -m command is showing my average situation on my VPS.

This is the value reported from cacti from all memory monitors I have.


gif upload[/img]

Why this graphs is completely different from what free -m command shows?

I'm interested in the free memory available, 303MB from free -m, why I can't read this value in no graphs?

Thanks.

Your graphs do show it, your cache graph shows where it's going.

http://www.linuxatemyram.com/

I know how RAM works under linux but there is no graph that show me the ram quantity I can count on.

I solved using the linux usage ndp, now I need a graph for iptables /banned ips...

Cacti is really more good looking than Munin but it is really more fragmented and less efficient since there are too few templates.
Not really satisfied.