# .und_mainchain/config/client.toml Reference
The $HOME/.und_mainchain/config/client.toml file contains all the configuration options for the und client
configuration. Below is a reference for the file.
# Contents
# Main base config options
# chain-id
The network chain ID
Example
chain-id = "FUND-TestNet-2"
# keyring-backend
The keyring's backend, where the keys are stored (os|file|kwallet|pass|test|memory)
Example
keyring-backend = "os"
# output
CLI output format (text|json)
Example
output = "text"
# node
<host>:<port> to Tendermint RPC interface for this chain
Example
node = "https://rpc-testnet.unification.io:443"
# broadcast-mode
Transaction broadcasting mode (sync|async|block)
Example
broadcast-mode = "sync"