How can I connect to my replicaset via DNS and private IP?

1 vote
0 answers
224 views
                          I have 2 node setup

    10.1.0.7  - mongodb-1.com (primary)
    10.1.0.8  - mongodb-2.com (secondary)

here is my mongod.conf

    net:
      port: 27017
      bindIp: 0.0.0.0
      tls:
        mode: allowTLS
        certificateKeyFile: /etc/mongodb/certificates/mongodb.pem
    security:
      authorization: enabled
      keyFile: /home/dbuser/repset
    replication:
      replSetName: "repset"

here is my rs.conf()

    {
      _id: 'repset',
      version: 4,
      term: 3,
      members: [
        {
          _id: 0,
          host: '10.1.0.7:27017',
          arbiterOnly: false,
          buildIndexes: true,
          hidden: false,
          priority: 1,
          tags: {},
          secondaryDelaySecs: Long("0"),
          votes: 1
        },
        {
          _id: 1,
          host: '10.1.0.8:27017',
          arbiterOnly: false,
          buildIndexes: true,
          hidden: false,
          priority: 1,
          tags: {},
          secondaryDelaySecs: Long("0"),
          votes: 1
        }
      ],
      protocolVersion: Long("1"),
      writeConcernMajorityJournalDefault: true,
      settings: {
        chainingAllowed: true,
        heartbeatIntervalMillis: 2000,
        heartbeatTimeoutSecs: 10,
        electionTimeoutMillis: 10000,
        catchUpTimeoutMillis: -1,
        catchUpTakeoverDelayMillis: 30000,
        getLastErrorModes: {},
        getLastErrorDefaults: { w: 1, wtimeout: 0 },
        replicaSetId: ObjectId("641aebeb4623f6fd0e700cf2")
      }
    }


Now my proposed setup would be there are 2 application servers that will connect to this replica set. 1 is via private IP and the other is via DNS name. Now when I connect via private IP. it is working fine. I cant do the same when connecting via DNS name. is that possible?

I am connecting to this via this script below (via Private IP that's working)

    mongodb://username:password@10.1.0.7:27017,10.1.0.8:27017/?authSource=admin&replicaSet=repset

The script below is the one that could not connect (via DNS)

    mongodb://username:password@mongodb-1.com:27017,mongodb-2.com:27017/?authSource=admin&replicaSet=repset


UPDATE: I do not know why this works but when I try to add each domain name as replicaset members.

    rs.add('mongodb-1.com:27017')
    rs.add('mongodb-2.com:27017')

I am now able to connect publicly via this command

    mongodb://username:password@mongodb-1.com:27017,mongodb-2.com:27017/?authSource=admin&replicaSet=repset
                        
Asked by JRA (137 rep)
Mar 29, 2023, 07:58 AM
Last activity: Apr 27, 2023, 12:38 PM
How can I connect to my replicaset via DNS and private IP?

Related Questions
