diff --git a/Linux_reinstall/RedHat/CloudInit/dhcp_interfaces.cfg b/Linux_reinstall/RedHat/CloudInit/dhcp_interfaces.cfg
index c243143..e8ba1c7 100644
--- a/Linux_reinstall/RedHat/CloudInit/dhcp_interfaces.cfg
+++ b/Linux_reinstall/RedHat/CloudInit/dhcp_interfaces.cfg
@@ -46,12 +46,7 @@ runcmd:
   - sed -ri 's/^#?PermitRootLogin.*/PermitRootLogin yes/g' /etc/ssh/sshd_config
   - sed -ri 's/^#?PasswordAuthentication.*/PasswordAuthentication yes/g' /etc/ssh/sshd_config
   - systemctl enable sshd
-  - ssh-keygen -A
   - systemctl restart sshd
-  - sed -i '6i \ \ <port port="sshPORT" protocol="tcp"/>' /etc/firewalld/zones/public.xml
-  - sed -i '7i \ \ <port port="sshPORT" protocol="udp"/>' /etc/firewalld/zones/public.xml
-  - systemctl enable firewalld
-  - firewall-cmd --reload
   - systemctl stop kdump
   - systemctl disable kdump
   - hostnamectl set-hostname HostName
@@ -60,12 +55,10 @@ runcmd:
   - mkswap /swapspace
   - swapon /swapspace
   - echo '/swapspace none swap sw 0 0' >> /etc/fstab
-  - yum install dnf epel-release -y
-  - dnf install curl dnsutils fail2ban file lrzsz net-tools vim wget -y
-  - sed -i '/^\[Definition\]/a allowipv6 = auto' /etc/fail2ban/fail2ban.conf
-  - sed -ri 's/^backend = auto/backend = systemd/g' /etc/fail2ban/jail.conf
-  - systemctl enable fail2ban
-  - systemctl restart fail2ban
+  - sed -i '6i \ \ <port port="sshPORT" protocol="tcp"/>' /etc/firewalld/zones/public.xml
+  - sed -i '7i \ \ <port port="sshPORT" protocol="udp"/>' /etc/firewalld/zones/public.xml
+  - dnf install curl dnsutils epel-release file lrzsz net-tools vim wget -y
+  - systemctl daemon-reload
   - grub2-mkconfig
   - rm -rf /etc/cloud/cloud.cfg.d/99-fake_cloud.cfg
   - touch /etc/cloud/cloud-init.disabled