How to disable IPv6 on Linux

Atlas VPN does not support IPv6, therefore, we highly recommend disabling it. In this guide, you will learn how to disable the IPv6 on Linux Ubuntu using the terminal.

1. Open the Terminal by pressing Ctrl+Alt+T buttons. Then, enter this command to open the sysctl.conf file:

    sudo nano /etc/sysctl.conf

    
   
    
2. Scroll down to the bottom and paste these lines:

   net.ipv6.conf.all.disable_ipv6 = 1
   net.ipv6.conf.default.disable_ipv6 = 1
   net.ipv6.conf.lo.disable_ipv6 = 1
   net.ipv6.conf.tun0.disable_ipv6 = 1

    
   
    
3. Save the changes by pressing Ctrl+O and Ctrl+X.
   
   
4. To apply changes in the sysctl.conf file, enter this command:

   sudo sysctl -p

    
   
    
5. Lastly, check the IPv6 status by entering this command:

   sudo cat /proc/sys/net/ipv6/conf/all/disable_ipv6

    
   
    
6. If you get 1 as a reply, you have successfully disabled the IPv6 on your device! Now you can connect to the VPN without interruptions.