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--- wiki:save_iptables_rules_clear_firewall [2025/09/18 08:26] – created antisa
+++ wiki:save_iptables_rules_clear_firewall [2026/05/21 13:47] (current) – [See also] add iptables commands antisa
@@ Line 10: / Line 10: @@
 Then, flush and open all the firewall rules using the following commands:
+<WRAP center round important 60%>
+Order you execute the commands below matters!
+Otherwise you might lock yourself out of the machine.
+</WRAP>
+  iptables -P INPUT ACCEPT
+  iptables -P OUTPUT ACCEPT
+  iptables -P FORWARD ACCEPT
   iptables -F
   iptables -X
@@ Line 17: / Line 25: @@
   iptables -t mangle -F
   iptables -t mangle -X
-  iptables -P INPUT ACCEPT
-  iptables -P OUTPUT ACCEPT
-  iptables -P FORWARD ACCEPT
 For IPv6 rules, substitute ip6tables instead of iptables.
+One-liner for **ipv4**:
+  iptables -P INPUT ACCEPT && iptables -P OUTPUT ACCEPT && iptables -P FORWARD ACCEPT && iptables -F && iptables -X && iptables -t nat -F && iptables -t nat -X && iptables -t mangle -F && iptables -t mangle -X
+One-liner for **ipv6**:
+  ip6tables -P INPUT ACCEPT && ip6tables -P OUTPUT ACCEPT && ip6tables -P FORWARD ACCEPT && ip6tables -F && ip6tables -X && ip6tables -t nat -F && ip6tables -t nat -X && ip6tables -t mangle -F && ip6tables -t mangle -X
+One-liner all:
+  iptables -P INPUT ACCEPT && iptables -P OUTPUT ACCEPT && iptables -P FORWARD ACCEPT && iptables -F && iptables -X && iptables -t nat -F && iptables -t nat -X && iptables -t mangle -F && iptables -t mangle -X && ip6tables -P INPUT ACCEPT && ip6tables -P OUTPUT ACCEPT && ip6tables -P FORWARD ACCEPT && ip6tables -F && ip6tables -X && ip6tables -t nat -F && ip6tables -t nat -X && ip6tables -t mangle -F && ip6tables -t mangle -X
 After testing, you can re-enable your firewall rules by running the following:
@@ Line 35: / Line 54: @@
 ====== See also ======
+  * [[iptables_commands|iptables commands]]
 ====== References ======