How to install mongodb 4.2 using yum on centos8

1. Make a repo file

Refer to the official installation documentation of mongodb and use the following script to create a Yum repository to install mongodb4.2. However, the installation process prompts "Failed to synchronize cache for repo 'mongodb-org-4.2'"

[mongodb-org-4.2]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/4.2/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.2.asc

The reason is that the official centos8 installation package has not yet been provided. Since the $releasever variable is 8, try to set the address to 7 to see if you can install a version based on centos7.

OK, use vim to create a repo file

sudo vim /etc/yum.repos.d/mongodb-org-4.2.repo

Enter the following configuration into the repo file, save it, and exit vim

[mongodb-org-4.2]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/7/mongodb-org/4.2/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.2.asc

2. Install using the yum command

sudo yum install -y mongodb-org

The installation process once failed to download because the network was too slow. Just execute it again. After a while, it prompts that the installation is successful and the process goes smoothly.

3. Start mongodb

After installing and starting the service, you can use

The start, stop, and restart commands are as follows:

sudo service mongod start
sudo service mongod stop
sudo service mongod restart

4. Open remote connection to mongodb

The configuration file of mongodb is /etc/mongod.conf

If you want to open remote access, you need to modify the bindIp value of the file to: 0.0.0.0, otherwise you will not be able to connect through other computers.

sudo vim /etc/mongod.conf

After the file is modified, restart is required to make the configuration take effect.

sudo service mongod restart

If you still cannot connect remotely, open port 27017 in the firewall (this port is the default port of mongodb, and the port of mongodb can be modified through the configuration file)

firewall-cmd --permanent --zone=public --add-port=27017/tcp
firewall-cmd --reload

Refer to the official installation instructions:

https://docs.mongodb.com/manual/tutorial/install-mongodb-on-red-hat/#run-mongodb-community-edition

Summarize

The above is the method of installing mongodb 4.2 on centos8 using yum introduced by the editor. I hope it will be helpful to everyone. If you have any questions, please leave me a message and the editor will reply to you in time. I would also like to thank everyone for their support of the 123WORDPRESS.COM website!
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