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Create MongoDB free cluster online (Mangodb Atlas)

Tags: image share picture Mangodb renaming learn Post blog nbsp clickMongoDB Atlas is a cloud service for MongoDB, built on Amazon's AWS, MongoDB allows users to create a free cluster on top for learning to use.1. Sign up for MongoDB Cloud account: Access www.mongodb.com/cloud/, click Get Start Free2. Give the project a name after registration (support renaming)3. Create a new

"Gandalf" Ubuntu Cluster configuration authentication-Free Login

are appended to the Authorized_keys file, so masternode authorized_keys files contain the public key of all nodes:cat ~/.ssh/temp1 >> ~/.ssh/authorized_keyscat ~/.ssh/temp2 >> ~/.ssh/authorized_keysRM ~/.ssh/temp1RM ~/.ssh/temp2Distribute the merged Authorized_keys files to each node in the Masternode:SCP ~/.ssh/authorized_keys slavenode1:~/.ssh/SCP ~/.ssh/authorized_keys slavenode2:~/.ssh/Fourth Step: All system configuration/etc/ssh/sshd_config file, make the system use public key authenticat

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