Hi, On 11-04-2015 06:00, Mehmet Allar wrote: > Hello , > > 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. That's weird. Do you happen to use any bridge in this system? Does ebtables-save give you anything? Otherwise, it shouldn't be taking a role in there. Marcelo