I redownloaded Snapchat today on my degoogled phone since my friends use it all the time now and I've also seen that it somehow got all of my contacts. Turns out that it uploaded my contacts to their cloud without me clearly telling that when I first signed up.

To check if your contacts are in cloud: Go to your profile > Open "Settings" by tapping the cogwheel > Under "Account Actions", select "Contact syncing" > Tap "See contacts shared with Snapchat". You can delete your contacts there too, I just did that. If you have an Android phone, I'd recommend you to patch your app with something like ReVanced to minimize data collection.

Why did ZippyBot bring me here?

Hi, whenever I try to enter the ports 80 and 443 at the beginning of the -R parameter, I get this error: Warning: remote port forwarding failed for listen port 80. How do I fix this?

How do I make the SSH tunnel forward traffic? It can't be as easy as just running ssh user@SERVER_IP in the terminal.

(I only need variant 1 btw)

I've added the firewall rule and it still says no port[s] to connect to whenever I run echo "Testing" | nc -u SERVER_IP -p 51820. I feel like you're trying to stay on a sinking ship, so I would suggest to try another method to see if we even can get the whole "bypass CGNAT with a VPS" thing to work at all.

Update: I've tried setting up SSH tunneling instead and it STILL doesn't work. I contacted Hetzner support about this issue and I'm hoping that they can resolve the firewall issues that I'm having.

I've added some different ports for the future, but this is my ufw status:

Status: active

To                         Action      From
--                         ------      ----
OpenSSH                    ALLOW       Anywhere                  
51820                      ALLOW       Anywhere                  
2333                       ALLOW       Anywhere                  
80                         ALLOW       Anywhere                  
81                         ALLOW       Anywhere                  
443                        ALLOW       Anywhere                  
80/tcp                     ALLOW       Anywhere                  
OpenSSH (v6)               ALLOW       Anywhere (v6)             
51820 (v6)                 ALLOW       Anywhere (v6)             
2333 (v6)                  ALLOW       Anywhere (v6)             
80 (v6)                    ALLOW       Anywhere (v6)             
81 (v6)                    ALLOW       Anywhere (v6)             
443 (v6)                   ALLOW       Anywhere (v6)             
80/tcp (v6)                ALLOW       Anywhere (v6)

Alright, I switched to ufw and... it's still not working. sigh

Should we just try something completely different? WireGuard doesn't seem to be working on my VPS. Someone in the comments mentioned tunneling via SSH, sounds interesting.

What do you mean with "clear out iptables completely"? Should I remove the iptables package with sudo apt remove iptables?

Alright, sounds good. What firewall are you recommending me to use? I would like to use a firewall that's easy to manage.

Edit: I went with ufw.

I tried to open the port 22 on UDP (yeah, I am getting pretty desperate over here...) and still get the message no port[s] to connect to... Someone else on this post commented that I should stop using iptables for opening ports and start using something else as a firewall. Should I try this approach?

Does iptables count as a firewall? You said that I should "forget" iptables. Is it that bad? It came preinstalled on the VPS. Should I switch? And if so, how?

Very interesting... How do I get started?