Connecting to VPN through cellular

[Bossman]

I setup my VPN on a Raspberry Pi 4B and I can connect to it from my home network and also from cellular. The only problem is that i can't access the internet through the VPN on both my computer as well as my mobile devices. I tried setting up a NAT but that did not seem to make a difference. Does anyone here have a solution to my problem? Thanks in advance.

[TinCanTech]

Did you setup the server yourself or did you use a script ?

Please see:
viewtopic.php?f=30&t=22603

[Bossman]

Did you setup the server yourself or did you use a script ?

I think I used a script, I used some fairly simple guides.
Also, I looked at the link you sent but I could not find the server.conf for example...
Sorry I'm not able to find these things, this is my first time doing this...

[TinCanTech]

Please Start with the Howto and familiarise yourself with Openvpn at least a little.

Your server config file will probably be in /etc/openvpn ..

And please name the script.

[Bossman]

Alright I looked some stuff up and now I'm not sure whether I used a script or not. What I did was download openvpn on the pi, and after that I had to configure some things like UDP/TCP and so forth.
I have found the server.conf, thanks a bunch for the clear explanation.

View Originalserver

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dev tun

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proto udp

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port 1194

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ca /etc/openvpn/easy-rsa/pki/ca.crt

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cert /etc/openvpn/easy-rsa/pki/issued/raspberrypi_7fd32f4a-3f71-4427-8993-ad459cd0832f.crt

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key /etc/openvpn/easy-rsa/pki/private/raspberrypi_7fd32f4a-3f71-4427-8993-ad459cd0832f.key

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dh none

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ecdh-curve prime256v1

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topology subnet

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server

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# Set your primary domain name server address for clients

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push "dhcp-option DNS 9.9.9.9"

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push "dhcp-option DNS 149.112.112.112"

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# Prevent DNS leaks on Windows

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push "block-outside-dns"

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# Override the Client default gateway by using 0.0.0.0/1 and

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# 128.0.0.0/1 rather than 0.0.0.0/0. This has the benefit of

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# overriding but not wiping out the original default gateway.

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push "redirect-gateway def1"

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client-to-client

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client-config-dir /etc/openvpn/ccd

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keepalive 15 120

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remote-cert-tls client

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tls-version-min 1.2

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tls-crypt /etc/openvpn/easy-rsa/pki/ta.key

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cipher AES-256-CBC

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auth SHA256

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user openvpn

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group openvpn

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persist-key

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persist-tun

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crl-verify /etc/openvpn/crl.pem

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status /var/log/openvpn-status.log 20

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status-version 3

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syslog

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verb 3

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#DuplicateCNs allow access control on a less-granular, per user basis.

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#Remove # if you will manage access by user instead of device.

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#duplicate-cn

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# Generated for use by PiVPN.io

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dev tun

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proto udp

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port 1194

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ca /etc/openvpn/easy-rsa/pki/ca.crt

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cert /etc/openvpn/easy-rsa/pki/issued/raspberrypi_7fd32f4a-3f71-4427-8993-ad459cd0832f.crt

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key /etc/openvpn/easy-rsa/pki/private/raspberrypi_7fd32f4a-3f71-4427-8993-ad459cd0832f.key

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dh none

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ecdh-curve prime256v1

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topology subnet

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server

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push "dhcp-option DNS 9.9.9.9"

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push "dhcp-option DNS 149.112.112.112"

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push "block-outside-dns"

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push "redirect-gateway def1"

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client-to-client

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client-config-dir /etc/openvpn/ccd

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keepalive 15 120

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remote-cert-tls client

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tls-version-min 1.2

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tls-crypt /etc/openvpn/easy-rsa/pki/ta.key

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cipher AES-256-CBC

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auth SHA256

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user openvpn

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group openvpn

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persist-key

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persist-tun

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crl-verify /etc/openvpn/crl.pem

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status /var/log/openvpn-status.log 20

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status-version 3

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syslog

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verb 3

Also, do I need to send you the whole openvnp.log? Because then I'd have a lot of ip addresses to delete... Is it correct that it is located in "/var/log/openvpn.log"?

I looked at the HOWTO extensively but I was not able to find the client files and did not understand how to get the server log...
Thanks again for the help and I'm sorry I'm not able to find those files...

[TinCanTech]

I looked at the HOWTO extensively but I was not able to find the client files and did not understand how to get the server log...

https://github.com/pivpn/pivpn

[Bossman]

https://github.com/pivpn/pivpn

Yep that's the one...

Could you also please explain how to get those files? I googled it as well without any good result.

[TinCanTech]

https://github.com/pivpn/pivpn/wiki

[TinCanTech]

I setup my VPN on a Raspberry Pi 4B and I can connect to it from my home network

Then I presume this is for your work.

You can either study the extensive documentation like everybody else does
or you can pay somebody to do it for you.

I am available for hire: tincantech <at> protonmail dot com