Run DO Node

Hardware requirements

• CPU: Intel Celeron or above, 8 cores or more recommended.
• Memory: 16 GB or above recommended.
• Disk: 100 GB or above recommended.
• Bandwidth: at least 100 Mbps upstream and downstream commercial bandwidth.
• Disk standard: SSD or NVMe medium to high-end solid-state drive.

Software requirements

• Operating system: CentOS 7 or above.

Network requirements

• Open ports 41516 and 41517.

If you do not want to synchronize from scratch, you can download the ledger data package:

• data.db.primary.tar.gz

Version iteration

Versions v3.x and above changed the node hardware requirements and updated investment and staking rules.

1. Node hardware configuration is limited to 2 cores and 4 GB.
2. Valid node requirement: 20000 DO (Stake) + 500000 DO (Invested) = 520000 DO.
3. Node rules:
   • Node stake: 20000 DO
   • Node investment: minimum 500000 DO, maximum 1.5 million DO
   • Node commission ratio: 1% to 50%
4. Investor rules:
   • Minimum investment: 1500 DO
   • Single-node maximum investment: 1.5 million DO

Version	Formal	Test	Ledger data
v3.4.1	don_v3.4.1_6a26b18_primarynet.zip	don_v3.4.0_aeef62d_testnet.zip
v3.3.0	don_v3.3.0_aed09bb_primarynet.zip
v3.2.0	don_v3.2.0_804ce8f_primarynet.zip	don_v3.2.0_9ebacb4_testnet.zip
v3.1.0	don_v3.1.0_9f35181_primarynet.zip	don_v3.1.0_6fdcaa4_testnet.zip
v3.0.0	don_v3.0.0_036f95d_primarynet.zip	don_v3.0.0_c1ddae0_testnet.zip

Configuring environment

Before running the program, prepare the runtime environment and permissions.

1. Download the main network program don_v1.x.x_xxxx_devnet and place it in a directory with read, write, and execute permissions.
2. Add execute permission to the program.

chmod +x don_v1.x.x_xxxx_devnet

3. Run the program. The -m parameter enables the menu. Press 0 to exit the current program.

./don_v1.x.x_xxxx_devnet -m

4. Check the generated directories and files in the current directory.

Document description

File or directory	Type	Description
cert	Folder	Stores generated private key files with the .private suffix.
data.db	Folder	Stores database files.
config.json	JSON file	Configuration file.
logs	Folder	Stores log files.
contracts	Folder	Contract related files.

Menu description

Serial Number	Menu items	Function
1	Transaction	Transaction
2	Stake	Stake
3	Unstake	Unstake
4	Invest	Invest
5	Disinvest	Disinvest
6	Get Rewards	Apply
7	PrintAccountInfo	Print account
8	Deploy contract	Deploy smart contracts
9	Call contract	Execute smart contracts
10	Account Manager	Account related management
0	Exit	Exit the program

Menus

1. Transaction

Press 1 to enter the transaction interface.

Enter your account address.

tips

1. The Base58 value is the account address.
2. You can scroll up, find the green text, and copy the Base58 value.
3. Do not use Ctrl+C and Ctrl+V for copying and pasting, because Ctrl+C exits the program.

Enter FromAddr, for example:

input FromAddr: 0xCA66A76E2a279050EF6b57797ac53199379abB9F

Enter the recipient address:

input ToAddr: 0xCA66A76E2a279050EF6b57797ac53199379abB9F

Enter the transaction amount:

input amount: 999999

Whether to search for UTXO across the entire network:

Whether to look for network-wide utxo status (1 means yes, 0 means no)
0

Enter a description for the transaction. Press Enter directly if you do not want to enter one:

Enter a description of the transaction, no more than 1 kb

Press Enter to submit.

2. Stake

Press 2 to enter the stake interface.

Enter the amount to be staked. The minimum stake amount is 20000.

stake addr: 0xCA66A76E2a279050EF6b57797ac53199379abB9F
Please enter the amount to stake:
20000

Enter the reward withdrawal ratio, from 1 to 50, representing 1% to 50%:

Please input the bonus pumping percentage to stake (1 - 50):
5

Whether to search for UTXO across the entire network:

Whether to look for network-wide utxo status (1 means yes, 0 means no)
0

Enter a description for the transaction. Press Enter directly if you do not want to enter one:

Enter a description of the transaction, no more than 1 kb

3. Unstake

Press 3 to enter the unstake interface.

Enter the unstake account:

Please enter unstake addr:
0xCA66A76E2a279050EF6b57797ac53199379abB9F

Enter the staked UTXO:

-- Current pledge amount: --
utxo: 3f4607d9e1ca341b3bee45110eecd2aaf1be5bba60bbdfe3ca44d68afae1b570 value: 200000000000
utxo: 3f4607d9e1ca341b3bee45110eecd2aaf1be5bba60bbdfe3ca44d68afae1b570

Whether to search for UTXO across the entire network:

Whether to look for network-wide utxo status (1 means yes, 0 means no)
0

Enter a description for the transaction. Press Enter directly if you do not want to enter one:

Enter a description of the transaction, no more than 1 kb

4. Invest

Press 4 to enter the investment interface and enter your address.

AddrList:
0xCA66A76E2a279050EF6b57797ac53199379abB9F [default]
Please enter your addr:
0xCA66A76E2a279050EF6b57797ac53199379abB9F

Enter the target address to invest in:

Please enter the addr you want to invest to:
0xCA66A76E2a279050EF6b57797ac53199379abB9F

Enter the investment amount. The minimum investment amount is 1500.

Please enter the amount to invest:
1500

Whether to search for UTXO across the entire network:

Whether to look for network-wide utxo status (1 means yes, 0 means no)
0

Enter a description for the transaction. Press Enter directly if you do not want to enter one:

Enter a description of the transaction, no more than 1 kb

5. Disinvest

Press 5 to enter the disinvest interface.

Enter the source address:

AddrList :
0xCA66A76E2a279050EF6b57797ac53199379abB9F [default]
Please enter your addr:
0xCA66A76E2a279050EF6b57797ac53199379abB9F

Enter the address you want to divest from:

Please enter the addr you want to divest from:
0xCA66A76E2a279050EF6b57797ac53199379abB9F

Enter the UTXO you want to divest:

======================================= Current invest amount: =======================================
Utxo: 366afab7d3931ff5e17cfc25c2dcaf2cf382b8623f22a605c4acc9fbba611dde
======================================================================================================
Please enter the utxo you want to divest:366afab7d3931ff5e17cfc25c2dcaf2cf382b8623f22a605c4acc9fbba611dde

6. Get Rewards

Press 6 to enter the reward claiming interface.

Whether to search for UTXO across the entire network:

Whether to look for network-wide utxo status (1 means yes, 0 means no)
0

Enter a description for the transaction. Press Enter directly if you do not want to enter one:

Enter a description of the transaction, no more than 1 kb

7. PrintAccountInfo

Press 7 to print account information.

*********************************************************************************
Version: 1_0.0.0_d
Base58: 1DqtUoPjmd7xKPYbRGUBMEJhQFLK9breQ2
Balance: 0.00000000
Block top: 0
*********************************************************************************

8. Deploy contract

Press 8 to deploy a smart contract.

1. The compiled binary code of the contract is saved in the contract directory.
2. Rerun the node after preparing the contract files.

Enter the address of the contract deployer:

AddrList :
0x6a72ad3e9762d67D45a311954CdC6ad4693203a9 [default]
Please enter your addr:0x6a72ad3e9762d67D45a311954CdC6ad4693203a9

Whether to search for UTXO across the entire network:

Whether to look for network-wide utxo status (1 means yes, 0 means no)
0

Enter a description for the transaction. Press Enter directly if you do not want to enter one:

Enter a description of the transaction, no more than 1 kb

Fill in the contract path. If you enter 0, the default ./contract/contract file is used:

Please enter contract path : (enter 0 use default path ./contract/contract)
0

If the contract constructor has parameters, enter the binary code required for deployment. If Calldata is in contract.txt, it can be skipped directly. Otherwise, enter 0 to skip:

Please enter input data (enter 0 to skip):0

9. Call contract

Press 9 to call a smart contract.

Enter the address of the contract executor:

AddrList :
0x6a72ad3e9762d67D45a311954CdC6ad4693203a9 [default]
Please enter your addr:0x6a72ad3e9762d67D45a311954CdC6ad4693203a9

Enter the deployer address:

=====================deployers======================
deployer: 0x855052fa258B463AEAd1E5abD55F2ffbCBb3F022
deployer: 0xcED97dA085527Fe7e1772CA59Aa1e64A78143128
=====================deployers======================

Please enter to addr:
0xeB3D7EBcc235A5B053F2735B18E16705a82216a3

Enter the contract address:

=====================contract addresses=====================
contract address: 0xE5370bF327AC024f0DF1d5d69dcd0B1a45f307B5
=====================contract addresses=====================

Please enter contract address:0xE5370bF327AC024f0DF1d5d69dcd0B1a45f307B5

Enter the parameters for the contract call:

Please enter args:
0xa0712d680000000000000000000000000000000000000000000000000000000000000001

Enter the tip amount for the assigned contract account. The default is 9:

input contract tip amount :100

Contract address transfer. If no transfer is required, enter 0:

input contract transfer amount :0

Whether to search for UTXO across the entire network:

Whether to look for network-wide utxo status (1 means yes, 0 means no)
0

Enter a description for the transaction:

Enter a description of the transaction, no more than 1 kb

10. Account Manager

Manage accounts through menu item 10.

1. Set Default Account
2. Add Account
3. Remove
4. Import SeedKey
5. Export SeedKey

Press 0 to exit the system.