TECHNOLOGYCold Masternode Guide Absolute Coin 2018 TECHNOLOGY Overview There are 2 possible setup options for a MasterNode: 1 Absolute Hot Node 2 Absolute Cold Node 1 Absolute Hot Node – 1000 ABS are stored as a collateral in a MasterNode 2 Absolute Cold Node - the MasterNode runs on a Virtual Private Server (VPS), while coins are stored locally in your wallet. It is a more secure approach, as the public IP address associated with the MasterNode is not the same as the wallet IP address. In addition, shut down of the wallet does not affect the MasterNode. Prequisities 1 1001 ABS Collateral: The required collateral for the Absolute Master Node setup is 1000 coins. To cover the imposed network transaction fee for a transfer we recommend to have an extra coin. 2 A local wallet: Place where you will store the collateral of 1000 ABS. Windows or linux wallets are accepted. 3 SSH client for your VPS: We recommend Putty client https://the.earth.li/~sgtatham/putty/latest/w64/putty-64bit-0.70- installer.msi ABSOLUTE CORE 2018 TECHNOLOGY MasterNode Seup Procedure 1 Connect to your VPS Terminal with SHH protocol (Putty) Launch Putty and enter your VPS IP address into the “Host Name” field. Other settings should stay default. We recommend you to save this IP address in Putty. To do so, name it in the ’Saved Sessions’ Box and ’Save’. Click ’Open’. You will see a pop-up message with a security alert about the keys. Click ’Yes’. Log in to your VPS. The VPS provider should give you both the username and the password 2 Swap Memory Setup This step is not applicable for VPS with 2 GB or more of RAM. Otherwise, enter the command into the terminal (in Putty press RIGHT CLICK to Paste): dd if=/dev/zero of=/mnt/myswap.swap bs=1M count=4000 Press ENTER Paste the command: mkswap /mnt/myswap.swap ABSOLUTE CORE 2018 TECHNOLOGY Press ENTER Paste the command: chmod 0600 /mnt/myswap.swap Press ENTER Paste the command: swapon /mnt/myswap.swap Press ENTER The afforementioned steps increased Swap memory to 4 GB, which is enough to compile the Absolute Daemon. 3 Absolute Daemon Compilation Paste the command: wget http://absolute-coin.com/install.sh Press ENTER Paste the command: chmod +x install.sh Press ENTER Paste the command: ./install.sh Press ENTER This operation is mandatory. Depending on your VPS and internet bandwidth it may may take up to 60 minutes. ABSOLUTE CORE 2018 TECHNOLOGY 4 Send the collateral of 1000 ABS & generate private key and transaction hash Generate a new address in your local wallet (NOT the VPS). Label it with ’MN1’. (This label can be given any name you want, but for the purpose of this guide we will call it ’MN1’). Transfer EXACTLY 1000 ABS to the newly generated address. Ensure that the ’Subtract fee from amount’ box is NOT checked. The transfer requires 15 confirmations before the MasterNode launch. The status of the transaction can be checked in the ’Overview’ wallet tab or by double clicking the transaction in the ’Transactions’ section. Open the debug console in your local wallet. (Tools>Debug Console). Paste the command: masternode genkey Press ENTER to generate your private key Save the output. It will be needed in upcoming steps. Wait for 15 confirmations of your collateral (1000 ABS) before running the next command! Paste the command: masternode outputs Press ENTER to get a transaction hash and output index. Save the output. It will be needed in upcoming steps. ABSOLUTE CORE 2018 TECHNOLOGY Open your masternode config: (Tools>Open Masternode Configuration File) Following the example presented in the file, fill in the necessary information in the first blank line while following the correct syntax as shown in the example on the next page. Leave only one space between information, no spaces or blank lines at the end. MN1 207.246.76.60:18888 9buh2hncRskwI1yrKvfyegdSas26GhgvVgGGaqWi8Ecdgt63xQp iuer12jwe6ereq5r5bx5cm4k4oh4o758399uj98213f565652csrwne0oflx o5iol12gf Highlighted in green: the external IP address of your VPS and the port it will be running on (must be 18888). Highlighted in red: the masternode private key you generated using the command masternode genkey Highlighted in blue: the transaction hash and output index you generated using the command masternode outputs Save this file and close it. In your Absolute wallet, go to Options (Settings>Options). In the ’Wallet’ tab check the ’Show Masternodes Tab’ box. Click OK. Restart your local Absolute wallet. 5 VPS setup Login to your VPS with Putty. ABSOLUTE CORE 2018 TECHNOLOGY Paste the command: cd .absolutecore Press ENTER Paste the command: nano absolute.conf Press ENTER Change the IP address in rpcallowip=127.0.0.1 to your VPS external IP address (the IP address that you use to connect to your VPS) Add this line at the end of the file: masternodeprivkey=9buh2hncRskwI1yrKvfyegdSas26GhgvVgGGaq The private key highlighted in red should be the private key that YOU generated using the command masternode genkey. Add this line at the end of the file: masternode=1 Press Ctrl+O, then ENTER. Press Ctrl+X. Paste the command: absoluted -daemon Press ENTER ABSOLUTE CORE 2018 TECHNOLOGY Wait for the wallet to synchronise fully. This can be checked by pasting the following command and then pressing ENTER absolute-cli getinfo The number of “blocks” should match that of the latest block shown in the Absolute Explorer (http://explorer.absolute-coin.com/). 6 Starting the Masternode Open the ’Masternodes’ tab in your local Absolute wallet. You should see ’MN1’ in ’Your Masternodes’ tab. Select ’MN1’ and click ’Start Alias’. Click ’Yes’. ’Sucessfully started MN1’ message should show up. Congratulations, your Absolute MasterNode is running! You should receive first rewards within 24hours. 7 Install the sentinel according to the instructions at https://github.com/absolutecrypto/sentinel