Mongodb open port: 27017 centos
An earlier version of this tutorial was written by Melissa Anderson. Show IntroductionMongoDB, also known as Mongo, is an open-source document database used in many modern web applications. By default, it only allows connections that originate on the same server where it’s installed. If you want to manage MongoDB remotely or connect it to a separate application server, there are a few changes you’d need to make to the default configuration. In this tutorial, you will configure a MongoDB installation to securely allow access from a trusted remote computer. To do this, you’ll update your firewall rules to provide the remote machine access to the port on which MongoDB is listening for connections and then update Mongo’s configuration file to change its IP binding setting. Then, as a final step, you’ll test that your remote machine is able to make the connection to your database successfully. PrerequisitesTo complete this tutorial, you’ll need:
Lastly, while it isn’t required to complete this tutorial, we strongly recommend that you secure your MongoDB installation by creating an administrative user account for the database and enabling authentication. To do this, follow our tutorial on How To Secure MongoDB on CentOS 8. Step 1 — Adjusting the FirewallAssuming you followed the prerequisite initial server setup tutorial and set up Start by checking which port your MongoDB installation is listening on with the The following command
will redirect the output produced by
This example output indicates that MongoDB is listening for connections to
In most cases, MongoDB should only be accessed from certain trusted locations, such as another server hosting an application. One way to configure this with
Run the following command, making sure to change Note: If the previous command’s output indicated that your installation of MongoDB is listening on a non default
port, use that port number in place of
This command permanently adds a rich rule to the firewall’s If the rule was added successfully, the command will return
Reload the firewall to put the new rule into effect:
In the future, if you ever want to access MongoDB from another machine, run this command again with the new machine’s IP address in place of You can verify the change in firewall settings by running
The output will include the
new rich rule allowing traffic to port
You can learn more about Next, you’ll bind MongoDB to the server’s public IP address so you can access it from your remote machine. Step 2 — Configuring a Public bindIPAt this point, even though the port is open, MongoDB is currently bound to To allow remote connections, you must edit the MongoDB configuration file — Open the MongoDB configuration file in your preferred text editor. The following example uses
Find the /etc/mongod.conf
Append a comma to this line followed by your MongoDB server’s public IP address: /etc/mongod.conf
Save and close the file. If you used Then, restart MongoDB to put this change into effect:
Following that, your MongoDB installation will be able to accept remote connections from whatever machines you’ve allowed to access port Step 3 — Testing Remote ConnectivityNow that you configured your MongoDB installation to listen for connections that originate on its publicly-routable IP address and granted your remote machine access through your server’s firewall to Mongo’s default port, you can test that the remote machine is able to connect. Note: As mentioned in the Prerequisites section, this tutorial assumes that your remote machine is another server running CentOS 8. The procedure for enabling remote connections outlined in Steps 1 and 2 should work regardless of what operating system your remote machine runs, but the testing methods described in this step do not work universally across operating systems. First, log into your trusted server using SSH:
One way to test that your trusted remote server is able to connect to the MongoDB instance is to use the If you haven’t already, you may need to install Install ncat by typing:
Press Then run the following Run the following
If the trusted server can access the MongoDB daemon, its output will indicate that it made a connection:
Assuming you have a compatible version of the One way to connect is with a connection string URI, like this:
Note: If you followed the recommended How To Secure MongoDB on CentOS 8 tutorial, you will have closed off access to your database to unauthenticated users. In this case, you’d need to use a URI that specifies a valid username, like this:
The shell will automatically prompt you to enter the user’s password. With that, you’ve confirmed that your MongoDB server can accept connections from the trusted server. ConclusionYou can now access your MongoDB installation from a remote server. At this point, you can manage your Mongo database remotely from the trusted server. Alternatively, you could configure an application to run on the trusted server and use the database remotely. If you haven’t configured an administrative user and enabled authentication, anyone who has access to your remote server can also access your MongoDB installation. If you haven’t already done so, we strongly recommend that you follow our guide on How To Secure MongoDB on CentOS 8 to add an administrative user and lock things down further. How do I start MongoDB on port 27017?By default, MongoDB starts at port 27017. But you can access it in a web browser not at that port, rather, at a port number 1000 more than the port at which MongoDB is started. So if you point your browser to http://localhost:28017, you can see MongoDB web interface.
How do I allow remote access to MongoDB?MongoDB can be managed remotely or connected to a separate application server by making a few changes to the default configuration. First, we'll install the MongoDB using the docker container, then configure the MongoDB installation to access from a trusted remote machine securely.
What ports need to be open for MongoDB?Default MongoDB Port. How do I enable port 27017?On the 'Rule Type' screen we select 'Port' and click 'Next'… On the 'Protocol and Ports' screen, for MongoDB we are opening TCP port 27017, but as you can see for the example you can provide a list or range of ports are required. Then click 'Next'.. On the 'Action' screen select 'Allow the connection' and click 'Next'.
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