Manjaro linux - Not able to disconnect properly about nordpy

[morpheusthewhite]

This should be fixed with 80ab4f9

[morpheusthewhite]

This is a problem I am myself encountering in the past weeks

[morpheusthewhite]

It is caused by the DNS configuration (which is set up by manually modifying the resolv.conf file after some DNS leaks). I need to find a workaround for using resolvconf or autoconf on all systems (which I had previously used by had problems in private networks which presented a login page)

[morpheusthewhite]

At the moment I am not able to replicate the problem.

Can you provide me the following informations?

1. DNS configuration before VPN connection (just cat /etc/resolv.conf)
2. Iptables before VPN connection (sudo iptables --list)
3. DNS configuration after VPN connection
4. Iptables after VPN connection
5. What is the connection error when you open a browser?
6. What is the output of ping github.com? What is the output of ping 8.8.8.8?

[MuffinCollector]

I've been dealing with this on and off as well on my Arch installation. I can't seem to reproduce at the moment, but last time I experienced this, I checked my resolv.conf and it looked appropriate (contained my router address which I use as my DNS server and is how it normally appears when not connected) and my iptables list. iptables when not connected for me is blank. When I became unable to connect to the internet, it instead appeared to be the same as when I'm connected to my VPN. While I failed to note the specifics at that time, I was able to regain my connection without reboot by flushing iptables and then restarting the iptables service.

[larry77]

I am experiencing the same issue on debian stable + wicd network manager + TCP when the wifi goes down.
If it happens again, I will post more.

[morpheusthewhite]

Are you using the latest version?

[morpheusthewhite]

Oh wait if the wifi goes down and then comes back again I think it's obvious it won't work, it's actually a problem related to openvpn

[larry77]

yes, I am using the latest version. I have issues even if I just disconnect from the vpn using the app.
Before the vpn connection

~$ cat /etc/resolv.conf
domain hotspot.ec.europa.eu
search hotspot.ec.europa.eu
nameserver 147.67.12.18
nameserver 147.67.250.18

~$ sudo iptables --list
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

After the VPN connection (TCP)

~$ cat /etc/resolv.conf

Appended by NordPy

nameserver 103.86.96.100
nameserver 103.86.99.100
domain hotspot.ec.europa.eu
search hotspot.ec.europa.eu

~$ sudo iptables --list
Chain INPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- 172.17.192.0/18 anywhere
ACCEPT tcp -- 5.180.62.93 anywhere tcp spt:https
ACCEPT all -- anywhere anywhere

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy DROP)
target prot opt source destination
ACCEPT all -- anywhere anywhere
ACCEPT all -- anywhere 172.17.192.0/18
ACCEPT tcp -- anywhere 5.180.62.93 tcp dpt:https
ACCEPT all -- anywhere anywhere

Warning: iptables-legacy tables present, use iptables-legacy to see them

~$ sudo iptables-legacy --list
Chain INPUT (policy ACCEPT)
target prot opt source destination

Chain FORWARD (policy ACCEPT)
target prot opt source destination

Chain OUTPUT (policy ACCEPT)
target prot opt source destination

[larry77]

I cannot reproduce the issue easily. It appears that part of the problem was my closing the app instead of properly disconnecting. I will post more when (if) this becomes fully reproducible on my system.

[morpheusthewhite]

Closing the application should not cause any problems since all needed information are stored in files

[larry77]

Hello,
Again, after losing the connection there was no way I could re-establish it (with or without vpn).
Wicd told me I was connected, nordpy said I was not and finally the only way to get back online was a full reboot.
Before that I tried disconnecting manually using nordpy's interface and reconnecting and this is what I saw on the console

Turning off killswitch looking for iptables in /home/lorenzo/nordpy-master/stored_iptables Selected a particular country: Germany resulting url: https://nordvpn.com/wp-admin/admin-ajax.php?action=servers_recommendations&filters={%22servers_groups%22:11,%22country_id%22:81} Selected a particular country: Germany resulting url: https://nordvpn.com/wp-admin/admin-ajax.php?action=servers_recommendations&filters={%22servers_groups%22:11,%22country_id%22:81}

but finally I was not able to get back online.

[morpheusthewhite]

@larry77 are you experiencing this problem only when the wifi goes down?

[larry77]

Hello, I experienced this mostly at work with a wifi connection. The connection used to go down every now and then for a few seconds only.

…

On Fri, Apr 17, 2020 at 12:40:25AM -0700, morpheusthewhite wrote: @larry77 are you experiencing this problem only when the wifi goes down? -- You are receiving this because you were mentioned. Reply to this email directly or view it on GitHub: #26 (comment)