I am using the Ubuntu 18.04 MongoDB one click installation droplet. I have setup three droplets, and want to set up a replica set. I was trying to follow some tutorials:
[and here] (https://www.digitalocean.com/community/tutorials/how-to-implement-replication-sets-in-mongodb-on-an-ubuntu-vps)
I am stuck at setting a bindIp, and whenever I add the IP of my other droplets to bindIp, mongod won’t start, failing with this error:
Mar 31 15:52:01 db3.muhive.com systemd[1]: mongod.service: Main process exited, code=exited, status=48/n/a
Mar 31 15:52:01 db3.muhive.com systemd[1]: mongod.service: Failed with result 'exit-code'.
To be clear, this works:
# network interfaces
net:
port: 27017
bindIp: 127.0.0.1
but this doesn’t
# network interfaces
net:
port: 27017
bindIp: 127.0.0.1,db1.munhive.com,db2.munhive.com,db3.munhive.com
Pinging each of those individually does work though. How do I set this up? Do I need to configure a private network?
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We have documentation to configure remove access for mongodb, Please feel free to check it out:
https://www.digitalocean.com/community/tutorials/how-to-configure-remote-access-for-mongodb-on-ubuntu-20-04
In the /etc/mongod.conf file make changes to bindIP as below to three mongodb nodes when you are setting up replication.
In mongodb1 server
# network interfaces
net:
port: 27017
bindIp: 127.0.0.1,mongodb1
In mongodb2 server
# network interfaces
net:
port: 27017
bindIp: 127.0.0.1,mongodb2
In mongodb3 server
# network interfaces
net:
port: 27017
bindIp: 127.0.0.1,mongodb3
Once you made these changes, restart mongod service on all 3 nodes.
Always when you are binding to a non-localhost, please make sure to secure the database by enabling authentication.
https://www.digitalocean.com/community/tutorials/how-to-secure-mongodb-on-ubuntu-20-04
Hope this helps!
Regards, Rajkishore
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