For some reason I’ve been trying to solve this challenge for too long, I can’t ping Linux-b or Browser-B.
I set Firewall -A (192.168.1.1) as default gateway on Linux-A, is it the correct gateway? Or is it something else? The problem is that I try to change it and it still doesn’t work, it adds Linux-B to the DNS server from the Browser-B GUI and nothing…
Add Linux-B and Browser-B to /etc/resolv.conf and still can’t ping Linux-B.
Check Firewall rules and both pfsense firewall are fine. Even try to delete them and make a new one and nothing.
Check the IPsec VPN tunnel so that everything is correct on both pfsense firewalls and they are fine.
Please can someone help me? What do I need to do? am I doing something wrong?? I’ve been doing this challenge for days and I don’t know what to do anymore. It is the last challenge I need to complete the PATH. what frustration!!
I just went through the lab to make sure everything is working. Here are my tips:
1.) Be sure the firewalls are up… you can open a console and wait for the menu screen.
2.) Linux-A needs to to have it’s IP fixed and it must include DNS configuration. The DNS server IP is 192.168.1.5. 192.168.1.1 is the right gateway. No need to second guess that.
3.) When looking at the configuration page in GNS3 for Linux-A and Linux B, be sure to remove comments ( # ) where needed and ADD comments when needed.
4.) Linux-B is using DHCP. You need to change that AND comment out DHCP. If you leave DHCP configured then the network on Linux-B will not come up. This burned me too.
5.) Linux-B’s IP is not in the DNS server. That is an issue.
6.) The firewall rules and VPN setup are all good. No tricks there. You just need to make sure the VPN tunnel is ESTABLISHED, and if not, well you need to start it.
7.) Fixes are needed on Linux-A, Linux-B, and you need to add a record to the DNS server. The DNS server is GUI driven and pretty easy to figure out.
8.) If you can ping “linux-b” (no quotes) from Linux-A you win. If you have any trouble getting the flag then show me a screen shot of Linux-A pinging “linux-b” by name and I will ensure you get the flag.
You are likely closer than you know. Work past the frustration and get the win!!