"The Default Ports That Some Popular Devops Tools and 
Technologies Run On "

"The Default Ports That Some Popular Devops Tools and Technologies Run On "

As DevOps has become an increasingly important part of software development, a variety of tools and technologies have emerged to help developers and operations teams work together more effectively. However, these tools and technologies often require specific ports to be opened on servers and other devices to function properly. In this blog, we'll take a look at some of the most popular DevOps tools and technologies and the default ports they run on.


Git is a version control system used by many developers to track changes to code over time. By default, Git uses port 9418 for the git:// protocol, which is used for read-only access to a repository. However, for read-write access, Git uses the SSH protocol, which typically runs on port 22.


Jenkins is a popular continuous integration and continuous delivery (CI/CD) tool. By default, Jenkins runs on port 8080, but this can be changed to any port that is not already in use on the server. Additionally, Jenkins uses port 50000 for communication between the master and agent nodes in a distributed build environment.


Docker is a containerization platform used to package applications and their dependencies into a single container that can be deployed anywhere. By default, the Docker daemon listens on a Unix socket at /var/run/docker.sock. However, if you want to use Docker over a network, you can configure it to listen on TCP ports 2375 or 2376.


Kubernetes is an open-source container orchestration platform used to manage containerized applications. By default, the Kubernetes API server listens on port 6443 for secure communication using the HTTPS protocol. Additionally, Kubernetes uses port 2379 for etcd, a distributed key-value store used for cluster configuration.


Ansible is an IT automation tool used to automate configuration management, application deployment, and other tasks. By default, Ansible uses SSH to communicate with remote hosts, so it typically uses port 22. However, Ansible can also be configured to use other protocols, such as WinRM for Windows hosts.


Terraform is a tool used to automate infrastructure as code (IaC). By default, Terraform communicates with cloud providers over HTTPS, which uses port 443. Additionally, Terraform can use SSH to communicate with remote hosts for tasks such as provisioning VMs.


Nagios is a monitoring tool used to monitor the health and availability of IT infrastructure. By default, Nagios runs on port 5666 for the NRPE (Nagios Remote Plugin Executor) service, which is used to execute plugins on remote hosts. Additionally, Nagios uses port 5667 for the NSCA (Nagios Service Check Acceptor) service, which is used to receive passive check results from remote hosts.

In conclusion, understanding the default ports that DevOps tools and technologies use can be important for configuring firewalls, networking, and security. However, it's important to note that these default ports can often be changed, so it's always best to check the documentation for each specific tool or technology.

The above information is up to my understanding. Suggestions are always welcome.

~Abhiraj kharbade