Hello I had run yum update command and server updated and installed about 300 different module with kernel. After update complete, webserver(nginx) and server didn't reachable. Webserver and ssh connections was said that "Connection refused" I' m using centminmod beta (latest) and i know that it installs the csf and configuring the iptables. And connection problems like that connection refused means there are a network problem. So we must look the csf and iptables first. After reboot, i run csfstop command ( disable csf ) and still problem, than later i run the "service iptables stop" and works finally! So, what is problem now? How can i fix it permanently ? Because, if i reboot the server it will be same. On the last yum update, too many modules have been updated like "network manager, iptables, dhcp, firewalld-filesystem etc. On the last update, yum update changed (reset) somethings so we had that problem. What is your advice, especially @eva2000 due centminmod usage. Thanks.