Firewall Switch
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Active firewall start point is Green em0 10.0.0.1 Red em1 192.168.9.10
If firewall1 Hardware is to become active use the next sequence.
Connect to firebox >$ cd ~/conf/etc >$ vim rc.conf_v013 Make active hostname="fire.sjakio.com" ifconfig_em1="inet 192.168.9.10 netmask 255.255.255.0" ifconfig_em0="inet 10.0.0.1 netmask 255.255.255.0"
>$ sudo cp rc.conf_v013 /etc/rc.conf
>$ cd ../isc-dhcpd/ >$ sudo cp dhcpd-firewall1.conf_v001 /usr/local/etc/dhcpd-firewall.conf
Connect to fire
>$ cd ~/conf/etc >$ vim rc.conf_v013 Make active hostname="firebox.sjakio.com" ifconfig_em1="inet 192.168.9.20 netmask 255.255.255.0" ifconfig_em0="inet 10.0.0.20 netmask 255.255.255.0" >$ sudo cp rc.conf_v013 /etc/rc.conf
>$ cd ../isc-dhcpd/ >$ sudo cp dhcpd-firewall1.conf_v001 /usr/local/etc/dhcpd-firewall.conf
In both execute.
>$ sudo shutdown -r now && exit
On the workstation edit ~/.ssh/known_hosts and remiove entries for fire, firebox, 10.0.0.1 and 10.0.0.20
>$ vim ~/.ssh/known_hosts
Note:
Important the only 2 ip addresses open for ssh are 10.0.0.1 and 10.0.0.20. So each of the 2 fire walls need to have one of these ip addresses, otherwise no ssh connection can be made.
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