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Before You Install

Download ​

You can get packages for CN, and PN in the download page.

Before You Install ​

Before installing the Kaia package, it is required to create the associated node information to enroll your node URIs. The Kgen package is provided for CC operators, please follow the steps in the order shown below.

  1. Download kgen Package
  2. Node Key & Node URI Creation
  3. Node URI Enrollment

Download kgen Package ​

First of all, you can download the latest version of kgen package depending on your operating systems on Download page.

You can find the kgen binary file under the bin directory.

Node Key & Node URI Creation ​

The node key and the node URI are created only once at the beginning. The node URI must be shared with other Core Cells of the Core Cell Network. A CN connects to other CNs and a PN connects to a CN and some PNs using the created node URI. A node URI is created based on the node key by using the downloaded kgen. The below command line creates nodekey as well as node_info.json.

kgen takes the associated IP and Port number as follows.


$ kgen --ip "123.456.789.012" --port 32323 --file
$ ls
nodekey node_info.json

The nodekey is a 64-byte hexadecimal string which is a private key used in the node internally. This private key must be present at the Kaia data directory and be careful not to lose it.


$ cat nodekey
f08f2118c455a6c9c9b5e035d3571e570a719ea61771e268546e796a264acc2b
$ mv nodekey ~/kcnd_home

The created file node_info.json includes the following contents.

Key NameDescriptionExample
NodeAddressan address of the associated node0xc8a23d67f2471066fa1b07270651fea7e5c0cf78
NodeKeythe node key (a.k.a private key)aaa7248dfdf19418ae9121a0f39db39c5c27a3e404ea7c1b8e020ca8dbe7e71a
NodeURInode URIkni://4f2f47f3bf35a2c576d3345e6e9c49b147d510c05832d2458709f63c3c90c76ead205975d944ed65e77dd4c6f63ebe1ef21d60da95952bc1e200e7487f4d9e1b@123.456.789.012:32323?discport=0

node_info.json contains the node information in a JSON format as follows.


$ cat node_info.json
{
"NodeAddress": "0xc8a23d67f2471066fa1b07270651fea7e5c0cf78",
"NodeKey": "aaa7248dfdf19418ae9121a0f39db39c5c27a3e404ea7c1b8e020ca8dbe7e71a",
"NodeURI": "kni://4f2f47f3bf35a2c576d3345e6e9c49b147d510c05832d2458709f63c3c90c76ead205975d944ed65e77dd4c6f63ebe1ef21d60da95952bc1e200e7487f4d9e1b@123.456.789.012:32323?discport=0"
}

Node URI Enrollment ​

The created node URI should be enrolled to participate in the Core Cell Network (CCN). The process of the enrollment is as follows.

  1. Create a node URI using kgen (node_info.json) which contains the associated IP and Port number.
  2. Send the information to the official Kaia email address (bootstrap@klaytn.com for Mainnet or baobab@klaytn.com for Kairos).

The enrolled information should be sent to the official Kaia email address. The format is as follows.

In case of CN,


Company: Kakao
CN URI : kni://
4f2f47f3bf35a2c576d3345e6e9c49b147d510c05832d2458709f63c3c90c76ead205975d944ed65e77dd4c6f63ebe1ef21d60da95952bc1e200e7487f4d9e1b@123.456.789.012:32323?discport=0

In case of PN,


Company: Kakao
PN URI : kni://
4f2f47f3bf35a2c576d3345e6e9c49b147d510c05832d2458709f63c3c90c76ead205975d944ed65e77dd4c6f63ebe1ef21d60da95952bc1e200e7487f4d9e1b@123.456.789.012:32323?discport=0