Create cloud firewalls in DigitalOcean with this convenient guide courtesy of the experts at Bobcares. 

At Bobcares, we offer solutions for every query, big and small, as a part of our Server Management Services.

Let’s take a look at how our Support Team is ready to help customers create cloud firewalls in DigitalOcean.

How to create cloud firewalls in DigitalOcean

DigitalOcean Cloud Firewalls are a stateful, network-based firewall service available for Droplets at no extra cost. The Cloud firewalls incessantly block traffic that does not comply with the rules.

We can easily create firewalls easily via the control panel by navigating to Create Menu and selecting Cloud Firewalls as seen in the image below:

We can choose a name for the firewall on the creation form. Additionally, we can define the outbound and inbound rules as well as select the resources to apply the rules to as seen below:

• Name: We have to define a name for the firewall before creating it.
• Rules: At least one rule has to be in place before creating a firewall. After creating a cloud firewall, we will come across four inbound as well as outbound rules by default. We can either, modify, delete or keep these rules in addition to creating new ones.
  • Default Inbound Rule: SSH

    As the compromise of a server usually starts across an inbound connection, the default inbound connections are under restriction with one exception. This allows SSH connections on port 22 from anywhere, allowing users to administer the server through a terminal.

    Type: SSH
    Protocol: TCP
    Port Range: 22
    Sources: All IPv4, All IPv6
  • Default Outbound Rules: Permit All Traffic

    As several fundamental services depend on outbound communication, this outbound rule allows all traffic to any destination on any port. Furthermore, this default rule enables us to set up a new server without restrictions that may block functionality.

    Type: ICMP
    Protocol: ICMP
    Port Range:
    Destinations: All IPv4, All IPv6

    Type: All UDP
    Protocol: UDP
    Port Range: All Ports
    Destinations: All IPv4, All IPv6

    Type: All TCP
    Protocol: TCP
    Port Range: All Ports
    Destinations: All IPv4, All IPv6

How to apply Firewall to Droplets

Another feature by DigitalOcean Cloud Firewalls is applying a firewall’s rules to Droplets via the Apply to Droplets field.

Our Support Techs would like to point out that we can leave this field blank while creating a firewall and assign Droplets later as well.

After creating the firewall, the Firewall tab offers us access to the main overview page as well as summary information including details about the number of rules, number of Droplets protected, as well as the date the firewall was created.

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Conclusion

In brief, our skilled Support Engineers at Bobcares demonstrated how to create Cloud firewalls in DigitalOcean.