Server Documentation & Management Hub

🚀 1. Services & Access

🔐 2. Credentials

(Stored securely in /root/server_creds.txt on the VPS)

👁️ 3. DNS Monitor Features

Real-time tracking of DNS health and security.

Core Capabilities

• Comprehensive Monitoring: Checks A, AAAA, MX, CNAME, NS, TXT, DMARC, and DKIM records.
• Security Focus:
  • DMARC: Validates email policy.
  • DKIM: Automatically scans default, google, dkim, and _dkim selectors.
• Smart History:
  • Logs all changes (Updates, Inits, Errors).
  • Logs "Routine Checks" (Gray) to confirm uptime even when no changes occur.
  • Filter: View logs by Domain or Event Type (Update/Error/Check).
  • Management: Option to Clear History for specific domains or globally.

Advanced Usage

• Custom DKIM Selectors:
  • If your email provider uses a non-standard selector (e.g., k1 or picnic), click your domain card.
  • In the Settings Panel (sidebar), add it to the comma-separated list.
  • Example: default,google,picnic
• Visual Status:
  • Green/Red Dot: Instant "Active" or "Error" status on card.
  • Copy Button: Quickly copy domain name.
  • Grouped Records: Records are organized by "Core", "Mail", and "Security".

📧 4. Email Administration

Create New Users

1. Log in to Mail Admin Panel as postmaster.
2. Navigate to Add... > User.
3. Fill in the details and quota (Default: 1024 MB).

Email Aliases (Receive Only)

Useful for having jawad@ deliver to me@.

1. In Mail Admin Panel, go to the User's profile.
2. Click the Aliases tab.
3. Add the desired alias address.
4. Send As Alias: Go to Webmail > Settings > Identities to add it as a sender.

Email Forwarding (Send Copy)

Useful for forwarding mails to Gmail.

1. Log in to Webmail as the user.
2. Go to Settings > Filters.
3. Create a new specific filter:
   • Scope: All Messages
   • Action: Send copy to -> destination@example.com

💾 5. Backup & Restore

A dedicated migration script is located at: /root/projects/migration/backup.sh

How to Backup (Clone)

1. SSH into the server.
2. Run the script:

   /root/projects/migration/backup.sh
   

3. Download the archive:

   scp root@dashboard.codebyjawad.com:/root/projects/migration/backups/full_server_backup_YYYYMMDD_HHMMSS.tar.gz ./my_backup.tar.gz
   

How to Restore

1. Upload the .tar.gz file to the new server's root (/).
2. Extract: tar -xzvf my_backup.tar.gz -C /
3. Restore Database: mysql < /root/projects/migration/backups/all_databases.sql
4. Reboot.

🛠️ 6. Maintenance & Troubleshooting

Important Log Files

• DNS Monitor: journalctl -u dns-monitor -f (Real-time logs)
• Mail Delivery: /var/log/mail.log (Check here if emails fail)
• Web Server: /var/log/nginx/error.log
• System: /var/log/syslog

Common Actions

• Restart DNS Monitor: systemctl restart dns-monitor
• Update System: apt update && apt upgrade -y
• Renew SSL: certbot renew (Automatic, but can be forced)
• Restart Mail Services: systemctl restart postfix dovecot nginx
• Firewall Status: ufw status

🌐 7. Network & DNS Reference

🤖 8. System Specifications

• OS: Ubuntu Linux
• Node.js: v24.12.0
• Web Server: Nginx (Reverse Proxy)
• Database: MariaDB & SQLite (DNS Monitor)
• Mail Stack: Postfix, Dovecot, iRedMail