Installing wordops breaks gre tunnel

stretch

I have a Ubuntu 20 server with gre tunnel setup as default gateway after installing WO this no longer works i.e traffic isn't able to pass through it and I have to use the router ip as default gw. I have tried installing 5 times and each time WO breaks it and if i roll back pre WO it works fine. Does anyone know what modules/networking could be breaking this?

stretch

Does no one have any idea what networking/firewall rules etc that are added when wo is installed?

marty

WordOps uses UFW - is UFW active, could that be blocking it?
(Sorry, I've never used GRE tunneling)

stretch

If I do
wget -qO wo wops.cc && sudo bash wo
everything still works fine, but after
wo stack install
it breaks
I have tried uninstalling ufw (was disabled anyway) and fail2ban but still see the issue.
wo stack purge --all
still broken
wget -qO wo wops.cc && sudo bash wo --purge
still broken

marty

@VirtuBox @portofacil Can you guys add any pointers to help with this one?

portofacil

marty Unfortunately I have no idea about GRE tunnels. :-/

stretch

Hi not to worrk i will spend the weekend looking into it, you can delete this thread if you with as may not be directly related to word ops just one of the packages it installs.

portofacil

stretch Please, share your findings. It may help someone in the future. 🙂

VirtuBox

Hello,
try to remove the file /etc/sysctl.d/60-wo-tweaks.conf and apply kernel changes with sysctl -e -p. There are some networking security rules inside which can cause issue.
If UFW is installed, you may have to edit /etc/default/ufw and set DEFAULT_FORWARD_POLICY to ACCEPT like this :
DEFAULT_FORWARD_POLICY="ACCEPT"