I have recently downloaded and setup CentOS 7 1503 on a device and encountered a remote connection problem which I was only able to solve via removing ebtables package .
After setup , I wanted go forward with IPtables instead of Firewalld , so remove firewalld and install iptables. After configuration and tests , I
installed Fail2Ban ,(which brought ebtables with it ) and after reboot I
was not able to connect to the device.
After every reboot, I had to logon to the device locally , restarted iptables service and then I was able to connect remotely. I traced my steps backwards and figured ebtables was the problem. After removing it , I could connect remotely after reboots. IPtables service is running just fine.
I want to use fail2ban , but I need to solve ebtables problem first. So, where sould I start? I couldn’t locate ebtables logs .
Thanks in advance.