12/8/2023 0 Comments Raspberry pi firewall![]() ![]() Maybe the system asks to update pacman itself, if so answer with "yes". In this step we'll update the system and install required packages for the RSS Remove from startup the unneeded daemons :ĭAEMONS=(!hwclock syslog-ng network vi /etc/hostsġ27.0.0.1 localhost.localdomain localhost ![]() # Disable DHCP by commenting these lines or else it will override the static IP configuration Of course you can modify these settings accordingly to your network. The network topology is as follow : the LAN subnet is 192.168.1.0/24, the DSL modem/router is 192.168.1.1 (LAN gateway), and the RSS will be 192.168.1.3. We have to set a static IP address as well as the netmask and the gateway. Having a stroong password, we can now go on and configure the network settings on our Raspberry Security System (RSS). Of course it requires some additional configuration, but it's not a problem. But to keep it as simple as possible we just use the Raspi as our gateway, this works really nice. Of course you could buy an USB to ethernet device to get a second network card. Some may now say "Hey wait, the Raspberry hs only one network port, how should this act as a gateway?". Central network monitoring node to watch and debug network traffic NIDS to detect malicious traffic, such as malware or vulnerability exploits ![]() DNS cache/server to speed up DNS requests and filter out bad DNS queries DHCP server to distribute network parameters to your LAN Ensure that abnormal packets does not get out or in our network Don't be afraid in this article we will see how to create a network gateway with a firewall, DHCP and DNS server, and a Network Intrusion Detection System (NIDS), entirely based on a Raspberry Pi.Īfter this instructable we will have a small security system with the following features: I don't think you're so careless but maybe you thInk, that setting up a secure network environment is expensive and really difficult. Do you really don't care if you computer is hijacked and used to attack other PCs or act as a spam server? Are your emails really public? Don't you have some photos you don't want to upload to Facebook, because they're private. Maybe you think "Why should I protect my pivate network? I've got no critical information on my computer, no sensitive data". ![]()
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