Nethserver Firewall and server resources

(Paul Farrar) #1

This maybe in the wrong area, sorry if it is and if anybody can put me right please do.

This is a general question, now I have managed to get Nethserver up and running as a native OS can anybody comment on the Firewall, do people use it and if they do, does it suck server resources to a maximum or slow down network traffic unless it has most CPU time to its self.

My Nethserver is running on a HP N40L microserver with 16GB of RAM. I was going to buy a box to run something like pfSense on but if I can run fewer boxes I can save electricity



I running Nether on a Microserver Gen8 with 4Gb ram… It’s with the Celeron G1610T CPU.

The Firewall don’t seem to take lot of ressources.
How many client will use the firewall?

(Giacomo Sanchietti) #3

The firewall will impact on network traffic only if you use Snort with many many rules.
Also ntopng can slowdown network traffic a little, but usually you won’t notice it (not with a server like yours) :smile:

(Paul Farrar) #4

This is for use at home but, on my LAN on a typical night there are 2 sky boxes, 2 or 3 laptops, 1 gaming PC, 1 Mac, 4 smart phones, several IoT devices, some Raspberry Pi’s (one as a media server) an android tablet and now a Nethserver and in the near future a second micro server that will probably be an VM host to a few more things.

So about 20 connected clients but a lot of them are not making huge demands for internet traffic.

I want to basically turn my Sky router as near to being a bridge as possible. Unfortunately you cannot select it as a true bridge, but if I make it as open as I can - traffic wise - I can use the Neth FW instead.

My Wifi traffic goes through a second TP-LinK router that only does the WiFi, no WAN connected. This way it to will pass via the FW

(Giacomo Sanchietti) #5

If this is your setup, don’t worry at all: the firewall without Snort will not slow down your connection.