If you are not a fan of managing software firewalls within your server, you can use our Cloud Firewall to allow and deny ports of your choice.
In this guide, we will show you how to allow port 22 for IP 10.10.1.254
Navigate to the Firewall tab on your compute instance
Select the Network Interface you need to set your Firewall rules for via the drop down menu
To view more details on your Network Interfaces, visit the Networking tab of your servers manage page.
Once selected, proceed to the next step to add firewall rules for the selected interface.
Click the collapse to add a new firewall rule
The following fields will appear to accept your new rule
Command: DROP or ACCEPT the rule, i.e., ACCEPT
Source IP: the source IPv4 or IPv6 address, i.e., 10.10.1.254
Destination port: the port in question, i.e., 22
Protocole: TCP or UDP
Once the related fields are filled, proceed to add the rule by clicking the Add button
At this point, the rules are not applied to your server, please feel free to add all the relevant rules before proceeding to the last step
Finally, once you have added all the rules, click on Apply Rules to save and activate the rules onto your server
Valid Source IPs
Individual IPv4 and IPv6 are allowed.
Valid Destination ports
The following are considered valid port ranges when using the firewall
To input a port range, use: 3000:30059
To input multiple ports, use: 22,21,80,443
Published on: 01 / 23 / 2019