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# Before we can use this new port we must change our firewall to allow traffic through the new port number and block access to port 22:<br /><code>iptables -I INPUT -p tcp -s0/0 --dport 22 -j DROP</code><br /><code>iptables -I INPUT -p tcp -s0/0 --dport 2200 -j ACCEPT</code>
# To test the new port connect to fedora1 from fedora2 using the following command:<br /><code>ssh -p 2200 user@fedora1</code>
{{Admon/important|Cannot connect via SSH?|To fix issues with the ability to ssh, on both machines:<ul><li>Ensure ssh is running. Systemctl status sshd.service.</li><li>Disable selinux by going into /etc/selinux/config and change "enforcing" to "disabled"; "targeted" to "minimum"</li></ul>.}}
{{Admon/tip | Tip! | For scp access the option to be used is: <code>scp -P 2200</code>}}
{{Admon/tip | Tip! | For more ideas on making sshd more secure consult the HOW-TO link above.}}