Frequently Used Commands

How to find the Klaytn Directory (Normally “Klaytn DIR”)

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You can check Klaytn directory at kcn or kpn config. Config file is located under /etc/kcnd/conf or /etc/kpnd/conf.

cat /etc/kcnd/conf/kcnd.conf (or /etc/kpnd/conf/kpnd.conf)

# Find DATA_DIR and LOG_DIR path as below example

DATA_DIR=/var/kcnd/data/

LOG_DIR=/var/kcnd/logs/

How to connect to Klaytn Console

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Connect to Klaytn API to check node and network status.

# execute the command below in the Klaytn DATA_DIR Path

$ sudo kcn attach klay.ipc

>

Useful APIs

# Check current block Number

> klay.blockNumber

# Check my kni address

> admin.nodeInfo

# Check my dode address

> governance.nodeAddress

# Check other connected nodes

> admin.peers

# Add or remove nodes

> admin.addPeer("kni")

> admin.removePeer("kni")

How to get the API Result only

# execute the command below in the Klaytn DATA_DIR Path

$ sudo kcn attach --exec <statement> klay.ipc

e.g.

# Check my dode address

$ sudo kcn attach --exec "governance.nodeAddress" klay.ipc

"0xda23978e6e354fbf25dd87aaf1d1bb4ed112753f"