Can not connect to pptp vpn

[amirali (AmirAli Sam)]

Hey guys, I am new to Fedora.
I Installed Fedora 32 64 bit, with gnome desktop. After installation I upgrade my Fedora and there was not any error, but now when I want to connect to pptp vpn by gui client, it won’t happend and also when I run sudo dnf update or sudo dnf upgrade I face these errors:

If any one can help me I will appreciate it. Thanks a lot.

[augenauf (florian)]

You should probably not use a third-party pptp client. This is all baked into Gnome’s Network Manager

sudo dnf search pptp

–>

sudo dnf install pptp NetworkManager-pptp-gnome

will nicely integrate VPN functionality into Gnome.

Delete those other repos!

[vgaetera (Vladislav Grigoryev)]

You’d best avoid using PPTP as the protocol is widely insecure due to multiple vulnerabilities.
The recommended solutions are WireGuard, OpenVPN and IPsec implementations.

[amirali (AmirAli Sam)]

Thanks a lot! I deleted those repos and my update problem solved, after that I install NetworkManagaer-pptp-gnome, but I still couldn,t connect, I also tried all of the packages with pptp search brought to me, it still didn’t connect!
Do you know what should I do next? Thanks.

[amirali (AmirAli Sam)]

Thanks for your warning, I am aware of that but I just can use pptp to connect to my office network, but surely I will talk about it to my manager, to make it right.
Thanks a lot.

[vgaetera (Vladislav Grigoryev)]

@amirali

Do you know what should I do next?

Start collecting logs:

journalctl -f

And try to activate the connection.

[amirali (AmirAli Sam)]

@vgaetera

journalctl -f

I done this, this is the result:

I serach it and there was a reccomendation:
modprobe nf_conntrack_pptp
I execute it but nothing happend.
Another one was:
sudo nano /etc/modules-load.d/pptp.conf
#Load nf_conntrack_pptp module at boot
nf_conntrack_pptp
I have tried it and nothing happend again!

[amirali (AmirAli Sam)]

Does any one knows how should I solve this issue?
I search the, these two solutions was proposed:

1. modprobe nf_conntrack_pptp
2. sudo nano /etc/modules-load.d/pptp.conf
#Load nf_conntrack_pptp module at boot
nf_conntrack_pptp
   Unfortunately I past the exact code in my terminal, then try to connect to pptp vpn, it still won’t work!
   I’ll be appreciate your help. Thanks.

[alciregi (Alessio)]

Could you try this solution?

PPTP VPN blocked by firewall

Hello. As far as I can remember, there is an issue with pptp. Actually it is not a bug, but some default value in how the connection is handled (don’t blame me, I’m not an expert), and not strictly a firewall rule. The solution was to issue this command: sudo sysctl net.netfilter.nf_conntrack_helper=1 Then retry to connect. If it works, let’s set it permanent, in order to survive to reboots: echo net.netfilter.nf_conntrack_helper=1 | sudo tee /etc/sysctl.d/98-nf_conntrack.conf

[amirali (AmirAli Sam)]

@PPTP VPN blocked by firewall

udo sysctl net.netfilter.nf_conntrack_helper=1

Thanks a lot! That was the solution! You made a big favor to me!
Good Luck!