ElectrumX Server for FixedCoin

Automated installation of an ElectrumX server for FixedCoin on Ubuntu 22.04 / Debian 11-12.

Uses KomodoPlatform/electrumx-1 for better altcoin compatibility.

Version: 1.0.8

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⚠️ Prerequisites

1. FixedCoin Node Required

You must have a synchronized FixedCoin node with:

• txindex=1 in fixedcoin.conf
• RPC enabled with username and password

2. Domain DNS (for Let's Encrypt SSL)

IMPORTANT: If you want to use Let's Encrypt, your domain must already point to your server IP before running the script:

DNS A Record: electrumx.yourdomain.com → 123.45.67.89 (your server IP)

Verify before installation:

ping electrumx.yourdomain.com
# Should display your server IP

3. Firewall Ports

Make sure these ports are open in your hosting provider's firewall:

• 50001 (TCP)
• 50002 (SSL)
• 50004 (WSS)

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🚀 Installation

Download the script

wget https://raw.githubusercontent.com/biigbang0001/Electrum-FixedCoin/main/install_electrumx_fixedcoin.sh
chmod +x install_electrumx_fixedcoin.sh

Run the installation

sudo ./install_electrumx_fixedcoin.sh

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📋 Installation Options

If an existing installation is detected, the script offers 4 options:

Option 1: Remove and reinstall (Recommended)

[1] Remove existing installation and install fresh

• Completely removes the existing installation
• Installs a clean version
• Use this option if something went wrong
• ⚠️ Warning: Deletes database (reindexing required)

Option 2: Keep installation

[2] Keep existing installation and exit

• Does nothing and exits
• Use if your current installation is working

Option 3: Multiple instances (Advanced)

[3] Install additional instance (advanced)

• Not supported by this script
• Requires manual configuration

Option 4: Update (Keep data)

[4] Upgrade to KomodoPlatform version (keep data)

• Updates source code only
• Preserves database and configuration
• Use to migrate from spesmilo to KomodoPlatform

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🔐 SSL Configuration

The script asks if you want Let's Encrypt:

Option 1: Let's Encrypt (Recommended for production)

[1] Yes - Let's Encrypt certificate (public server with domain)

• Official and free SSL certificate
• Automatic renewal every 90 days
• Requires domain pointing to your server

Option 2: Self-signed certificate (Local testing)

[2] No - Self-signed certificate (local testing)

• Self-signed certificate
• For local testing only
• Wallets will show a warning

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🔧 FixedCoin Configuration

The script will ask for:

1. Path to fixedcoin-cli (default: /var/fixedcoin/bin/fixedcoin-cli)
2. Data directory (default: /var/fixedcoin/data)
3. RPC Username (default: rpcuser)
4. RPC Password (default: rpcpassword)
5. RPC Port (default: 24761)

Verify these parameters match your FixedCoin configuration.

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✅ Post-Installation Verification

Check the service

# Service status
systemctl status electrumx

# Real-time logs
journalctl -u electrumx -f

# Indexing progress
journalctl -u electrumx -f | grep height

Test connectivity

# Local test
echo '{"id": 1, "method": "server.version"}' | nc -q 1 localhost 50001

# External test (from your PC)
nc -zv electrumx.yourdomain.com 50002

Useful commands

# Start service
systemctl start electrumx

# Stop service
systemctl stop electrumx

# Restart service
systemctl restart electrumx

# View logs
journalctl -u electrumx -n 100

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🔗 Connect from Wallet

Once indexing is complete, connect your Electrum wallet:

electrum --server electrumx.yourdomain.com:50002:s

Or in wallet settings:

• Server: electrumx.yourdomain.com
• Port: 50002
• Protocol: SSL

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🛠️ Troubleshooting

Installation fails or freezes

Solution: Uninstall and reinstall

# Rerun the script
sudo ./install_electrumx_fixedcoin.sh

# Choose Option 1: Remove existing installation
# Type "yes" to confirm

Server not accessible from outside

1. Check UFW (server firewall)

sudo ufw status
# Ports 50001, 50002, 50004 must be ALLOW

2. Check hosting provider firewall

   • OVH: Panel → Network → Firewall
   • Hetzner: Cloud Console → Firewalls
   • DigitalOcean: Networking → Firewalls

3. Verify port is listening

netstat -tlnp | grep 5000
# Should show: 0.0.0.0:50001, 0.0.0.0:50002, 0.0.0.0:50004

Let's Encrypt fails

Cause: Domain is not pointing to server IP

Solution:

1. Check DNS: ping electrumx.yourdomain.com
2. Wait for DNS propagation (up to 24h)
3. Rerun script and choose Option 1 (reinstall)

Indexing is slow

This is normal! Full indexing can take several hours depending on:

• Blockchain size
• Server performance
• Disk speed

Monitor progress:

journalctl -u electrumx -f | grep height

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📁 Files and Directories

Configuration

• /var/electrum/electrumx.conf - Main configuration
• /var/electrum/banner.txt - Server banner

Data

• /var/electrum/db - Database (can be large)
• /var/electrum/logs - Logs
• /var/electrum/ssl - SSL certificates

Source code

• /home/electrumx/electrumx-source - ElectrumX code (KomodoPlatform)
• /home/electrumx/electrumx-venv - Python virtual environment

Service

• /etc/systemd/system/electrumx.service - Systemd service

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🔄 Update

To update ElectrumX to the latest version:

# Rerun the script
sudo ./install_electrumx_fixedcoin.sh

# Choose Option 4: Upgrade to KomodoPlatform version

This updates the code without touching the database.

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📊 Technical Specifications

• ElectrumX: Version 1.18.0 (KomodoPlatform fork)
• Python: 3.11+
• Database: LevelDB
• SSL: Let's Encrypt or self-signed
• Ports: 50001 (TCP), 50002 (SSL), 50004 (WSS)

Recommended server configuration

• CPU: 2 cores minimum
• RAM: 4 GB minimum (8 GB recommended)
• Disk: 20 GB minimum (SSD recommended)
• OS: Ubuntu 22.04 or Debian 11/12

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🆘 Support

Detailed logs

# View last 200 lines
journalctl -u electrumx -n 200

# Search for errors
journalctl -u electrumx | grep -i error

Complete reinstallation

If nothing works, reinstall everything:

# 1. Uninstall
sudo ./install_electrumx_fixedcoin.sh
# Choose Option 1 and confirm with "yes"

# 2. Manual cleanup (if needed)
sudo rm -rf /var/electrum
sudo rm -rf /home/electrumx
sudo userdel -r electrumx
sudo rm -f /etc/systemd/system/electrumx.service
sudo systemctl daemon-reload

# 3. Reinstall
sudo ./install_electrumx_fixedcoin.sh

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📜 License

MIT License

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👥 Contributing

Developed for the FixedCoin community.

Installation script: v1.0.8
Last update: October 28, 2025

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🔗 Useful Links

• FixedCoin: Official website
• ElectrumX: KomodoPlatform/electrumx-1
• Electrum Wallet: electrum.org

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Successful installation? Don't forget to ⭐ the repo!