OpenVPN VS Nebula

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How you connect to your modem will depend on the device you are using, but for windows laptops as an example you download the OpenVPN program and input your modem details there, much like you would any other vpn service. I think there would be some guides on youtube. https://openvpn.net/

I just started playing with CloudConnexa for remotely managing my second pFSense. Really nice and is free for up to 3 concurrent users. https://openvpn.net. Can also self-host OpenVPN access server with a free 2 concurrent license.

If anyone is being blocked check out free OpenVPN

It is likely an issue with the 'cipher' options, if any, that are in your ".opvn" file. This is telling you that the opvn setting is not finding a matching cipher it is allowed to use. The fix per the message would be to add the Servers cipher to your options. https://github.com/OpenVPN/openvpn-gui/issues/381 https://github.com/OpenVPN/openvpn/blob/master/doc/man-sections/cipher-negotiation.rst

I too haven't used the client-nat directive in some years (I currently implement 1:1 NAT with pfsense to access my network because I'm too lazy to change the networks subnet from the default) so I decided to retest and it does appear that OpenVPN Connect clients do not properly support the client-nat directive but the traditional OpenVPN server/clients still do. I've just tested this on OpenVPN 2.6.3 Server, OpenVPN 2.6.1 GUI for Windows from openvpn.net, and OpenVPN Connect iOS 3.3.3 and only the OpenVPN Connect client has any difficulty. Difficulty being that you can use client-nat successfully but it has to be configured server-side it can't be pushed to or setup on the client (OpenVPN Connect) side. The Server and Windows (non-OpenVPN Connect) clients work an any setup whether it's configured server-side, pushed to the client, or set up in the client config.

Ask openvpn.net for commercial support: https://support.openvpn.com/

OpenVPN is a VPN client that I used primarily for work. We used VPN to connect to the dev server and we are using VPN. I also sometimes used that to open websites that got blocked in Indonesia like Reddit.

I connect all the servers with secure OpenVPN private network. And block unused ports anywhere with ufw.

Ensure remote access is by VPN only like the site-to-site with Ubiquitis gear, WireGuard or OpenVPN and there could be a paid option I just don't know.

(I am a Nebula maintainer.) We recently merged support for gVisor-based services, although it's very new, and I don't know of much experimentation that's been done with it yet: https://github.com/slackhq/nebula/pull/965

Nebula, originally from Slack[0].

Wireguard rightly gets a lot of attention, but Nebula is a really simple and easy to deploy mesh network that is often overlooked.

It does lack a management GUI and that stuff is very much DIY.

[0] https://github.com/slackhq/nebula

Fair enough about the android mobile client... My use case only involves meshing linux appliances across various networks so we only need the nebula core binaries which are under MIT license

https://github.com/slackhq/nebula/blob/master/LICENSE

That's not at all confusing with Slack's Nebula. https://github.com/slackhq/nebula

Sounds like a bunch of your pain points are just related to needing an online CA or ICA. But, looking through the Nebula docs I don't know that it supports things like CRL addresses where you could host the CRL, or OCSP responders. Someone got support for an OCSP responder but never submitted a PR with completed code: https://github.com/slackhq/nebula/issues/72

Nebula is a scalable, cross-platform overlay networking tool focused on performance, simplicity, and security. This portable tool is equally adapted for linking a small number of computers or scaling to connect tens of thousands. It integrates encryption, security groups, certificates, and tunneling into a powerful, cohesive connectivity solution. Thanks for the recommendation go to jmeador42.

Replying to my own comment as I can no longer edit it:

The folks over at Slack had an interesting discussion regarding the the "battle of the VPNs" article published by Netmaker I sourced in my parent comment:

https://github.com/slackhq/nebula/discussions/911

Interesting. I thought recognized the logo, apparently seems to be a commercial support offering of https://github.com/slackhq/nebula and they support the "nebula" iOS app. I had been using for nebula/defined in the past.

Nebula: Is super easy to get running. It uses an interesting angle, working on the service and not just the device level. Unfortunately their NAT support seems to be still quite problematic and I am not going to maintain all those forwarded ports manually. There is a PR to support PCP but even if that ever gets applied I am not sure how well that will play with older routers. While it should be battle proven at slack, the community seems to be not that active. It still has the in-house tool that just got released.

The catch is that I want this to be reliable and fault tolerant, so if some of the game servers in the network go down, the remaining online servers should still always be able to receive broadcasts from any other online server. The servers can also be in multiple geographic locations and I am planning on using a mesh overlay network like Nebula to connect them. Essentially each pair of online servers will likely have a secure link between them that goes directly through the underlying network.