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--- firewalld [2018/08/08 13:23] – created k2patel
+++ firewalld [2020/08/10 02:35] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
 ====== Firewalld ======
-Another package to manage another package... welcome to new world ... :D
+Another package to manage another package... welcome to new world ... :D\\
 Anyway but server need to keep rolling !!
+==== Replace firewalld with iptables ====
+This is tested with the RHEL7
+<code bash>
+yum install -y iptables-services
+iptables-save > /etc/sysconfig/iptables  # preserve existing rule
+systemctl stop firewalld
+systemctl mask firewalld
+systemctl enable iptables
+systemctl enable ip6tables
+systemctl start iptables
+systemctl start ip6tables
+</code>
 ==== Adding rich rule ====
@@ Line 12: / Line 25: @@
   source address="192.168.12.0/25"
   port protocol="tcp" port="9200" accept'
+</code>
+==== Port redirection ====
+Using following command one can redirect port traffic to another.
+<code bash>
+# iptables -t nat -A PREROUTING -i eth2 -p tcp --dport 8080 -j REDIRECT --to-port 8443
+firewall-cmd --permanent --direct --add-rule ipv4 nat OUTPUT 0 -p tcp -o lo --dport 8080 -j REDIRECT --to-ports 8443
 </code>