Backend no longer accessible

[jkbngl]

Some of this commands seem to have fixed it:

  998  docker ps
  999  docker logs nginx
 1000  docker logs nginx --tail 100
 1001  docker ps
 1002  docker logs nginx
 1003  docker logs nginx --tail 100
 1004  docker ps
 1005  cat /etc/os-release 
 1006  sudo firewall-cmd --reload
 1007  sudo firewall-cmd --zone=public --add-service=https --permanent
 1008  sudo firewall-cmd --zone=public --add-service=http --permanent
 1009  docker logs nginx --tail 100
 1010  cd /nttw/sw/nginx/
 1011  ll
 1012  docker exec -it nginx bash
 1013  docker run -itd --name nginx -p 80:80 -p 443:443 nginx:alpine
 1014  docker stop nginx
 1015  docker run -itd --name nginx -p 80:80 -p 443:443 nginx:alpine
 1016  docker run -itd --name nginx_ -p 80:80 -p 443:443 nginx:alpine
 1017  systemctl restart network
 1018  vim /etc/sysctl.conf
 1019  sudo vim /etc/sysctl.conf
 1020  systemctl restart network
 1021  sudo systemctl restart network
 1022  sysctl net.ipv4.ip_forward
 1023  sudo systemctl restart docker
 1024  docker run -itd --name nginx_ -p 80:80 -p 443:443 nginx:alpine
 1025  docker run -itd --name nginxv3 -p 80:80 -p 443:443 nginx:alpine
 1026  docker stop nginx_
 1027  docker run -itd --name nginxv3 -p 80:80 -p 443:443 nginx:alpine
 1028  docker run -itd --name nginxv4 -p 80:80 -p 443:443 nginx:alpine
 1029  docker stop nginxv3
 1030  docker stop 
 1031  docker ps
 1032  docker run -itd --name nginxv4 -p 80:80 -p 443:443 nginx:alpine
 1033  docker stop nginx
 1034  docker run -itd --name nginxv4 -p 80:80 -p 443:443 nginx:alpine
 1035  docker ps
 1036  docker rm nginxv4
 1037  docker rm nginxv3
 1038  docker rm nginxv2
 1039  docker rm nginx_
 1040  docker run -itd --name nginxv4 -p 80:80 -p 443:443 nginx:alpine
 1041  docker stop nginxv4
 1042  docker start nginx
 1043  history