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Messages - freeflyer

#1
Thanks cookiemonster,

I had a feeling that having only one physical NIC might be an issue so thanks for confirming this.

I guess one solution would be to purchase a NIC card with multiple ports that fits into one of the PCIe slots in the Dell T30 ?

One thing I don't understand about firewalls, is that if the router has a firewall then why do OS's like Windows, Mac OS, Ubuntu etc come with firewalls as they would be a second firewall too ?

I have been advised never to put a VPN on a router.  I was told...

QuoteNever, ever, run the VPN on your primary edge router that protects your entire network. When that device fails, there are some terrible failure modes which may leave you with no VPN, but access still provided. I don't want anything on my edge router besides a firewall and routing. No DHCP, no DNS, no fancy addons, no VPN. They should do routing and firewalling, nothing else. Sure, there are 500 packages that can be installed on our edge routers now, but just because something is possible, that doesn't make it a good idea. I use OPNSense on my router. No way would I run a VPN on it and I won't use openVPN at all due to the complexity. OPNSense is just a router distro that runs on x86-64 systems using BSD as the base OS. I stopped using OpenVPN a few years ago and switched to Wireguard. It is 100x easier to setup and faster for transfers.

As it seems I can't use OPNsense (unless fitting a PCIe NIC card will work?), I'm wondering if its possible to run Wireguard VPN in Virtualbox on my Dell T30 Ubuntu server ?  Then my parents could use a VPN client to connect to my server and I can then perform offsite backups.

I initially was looking at setting up a VPN connection and OPNsense was recommended by several people as a way to do this, but it sounded like OPNsense also provides extra protection which is why I started looking at it.

These people run OPNsense on their router, would it be possible to run it on my Fritzbox router if I decided to in the future ?

If required I can replace the router at my house and my parents house, although I wouldn't know which router to replace them with.  I also get the impression Virgin ISP is more restrictive when trying to setup things like this ?
#2
I have been looking at setting up a remote VPN connection between my house and my parents house as shown in the following diagram...

https://www.dropbox.com/scl/fi/08jbpas4gja418fwgc5w5/VPN.jpg?rlkey=ycpmjfcp1umh9vfbmcnua5r91&dl=0

People have recommened I look at OPNsense and use its VPN, but I am not sure how to install it.

I was hoping I could install it on my Dell T30 server which is running Ubuntu 20.04.

I followed the guide below to install Virtualbox and OPNsesne, but I got confused when it came to setting up the network adapters in Virtualbox.

https://www.zenarmor.com/docs/network-security-tutorials/how-to-install-opnsense-on-vbox

The guide says:

Quote
We will create 2 network adapters, the first one will be Bridge Adapter.

For Adapter 1:

Select the 'Bridge Adapter' option from the "Attach to: "drop-down menu.

Select the network adapter on the host system that traffic to from this network card will go through. We chose the wireless adapter.  In this case wlo1.

For Adapter 2:

The second Network adapter will be Host-only-Adapter.

You should choose the created vboxnet interfaces. In this case vboxnet2


My Dell T30 only has one LAN port which uses an embedded Intel I219-LM GbE LAN 10/100/1000 NIC.

Its name appears as 'enp0s31f6' which I can set as the 'Bridge Adapter' for Adapter 1 as shown in the following diagram...

https://www.dropbox.com/scl/fi/z8qqo8sx2t6jwysm90m3o/Adapter1.png?rlkey=dgkkis7c0k0050in4oysnnnmk&dl=0

However, I cannot set Adapter 2 as 'Host only Adapter' becase the drop down box for name only has the option 'Not selected' and there is an error that says 'Invalid settings detected - no host-only adapter is currently selected as shown in the following diagram...

https://www.dropbox.com/scl/fi/tmb83wdnc1i4iu2udnn2s/Adapter2.png?rlkey=m2y6pmxaomo37xziwqluiujbn&dl=0

Is it even possible to setup OPNsense on my Dell T30 Ubuntu server and if so, how do I configure the network adapters in Virtualbox ?