Well, I want install pfsense in a dual core e5200, with 1,5 GB RAM, and a usb stick of 16 GB (as HDD).
I need a squid+squidguard and blacklist filter (http and https), i dont need to use the pfsense as a router.
It is this enough hardware for this purpose? If its affirmative, what is te best configuration?
I thanks for the help and wait for your responses.
The hardware is fine for that purpose. Make sure you install the embedded version, as the full version on a USB stick will probably wear it out quickly with writes. You'd want to use a RAM disk for the squid cache. A better choice for squid would be a full install on a small SSD; you can get a suitable 60GB one for $30 or so in the US, not sure where you are but should be similar.
and a usb stick of 16 GB (as HDD).
I need a squid+squidguard and blacklist filter
I would also council to go with a smaller SSD or mSATA drive for that action together with a full install of pfSense.
And wich you think is the better configuracion for this purpose? only one interfaz coneected to a DMZ net? Any reference or tutorial for those?