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Replace firewalld with iptables in CentOS - Revision history
2026-04-23T17:50:48Z
Revision history for this page on the wiki
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https://devopsnotebook.com/index.php?title=Replace_firewalld_with_iptables_in_CentOS&diff=227&oldid=prev
MilosZ: Created page with "Stop and disable firewalld <pre> # systemctl stop firewalld # systemctl disable firewalld </pre> Install and enable iptables service <pre> # yum install iptables-services # s..."
2020-10-08T12:29:19Z
<p>Created page with "Stop and disable firewalld <pre> # systemctl stop firewalld # systemctl disable firewalld </pre> Install and enable iptables service <pre> # yum install iptables-services # s..."</p>
<p><b>New page</b></p><div>Stop and disable firewalld<br />
<pre><br />
# systemctl stop firewalld<br />
# systemctl disable firewalld<br />
</pre><br />
<br />
Install and enable iptables service<br />
<pre><br />
# yum install iptables-services<br />
# systemctl enable iptables<br />
</pre><br />
<br />
Create simple iptables to allow port 22 by editing '`'/etc/sysconfig/iptables'''<br />
<pre><br />
*filter<br />
:INPUT ACCEPT [0:0]<br />
:FORWARD ACCEPT [0:0]<br />
:OUTPUT ACCEPT [0:0]<br />
-A INPUT -m state --state RELATED,ESTABLISHED -j ACCEPT<br />
-A INPUT -p tcp -m tcp --dport 22 -j ACCEPT<br />
-A INPUT -i lo -j ACCEPT<br />
-A INPUT -j REJECT --reject-with icmp-port-unreachable<br />
COMMIT<br />
</pre><br />
<br />
Start iptables and verify that rules have been applied<br />
<pre><br />
# systemctl start iptables<br />
# iptables -nL<br />
</pre></div>
MilosZ