At this point of my side project I wanted to check out openresty for dynamic proxy creation in nginx.

Happy to check it out I installed centos 7 as guest using new command I just learned virt-builder that would automate vm creation.

Spend 10 hours debugging why I can ping and ssh but cannot get to application port from any network.

Checked iptables, restarted network, reinstalled vm again 3 times with different methods.
Scrolled trough whole internet and it’s mostly outdated problems.
Learned bunch of new commands without new results.

Results were always the same:
No route to host.

Turned out firewalld is fucking thing now.

systemctl firewalld stop helped

Now I know that systemd would kill me at some point for sure.

What I can add at this point ?

Please add more distros, differences, standards and programming languages so world definitely would be better place.
I need a short break now to actually start making shit that I wanted to start at 4-5pm on Saturday.
It’s Sunday 3:30am and time for breakfast.
At least I am happy it started working.