Kopano Installation Guide Installation Guide

Kopano is a free and open-source Groupware. An open-source groupware suite with Outlook compatibility

Hardware Requirements:

CPU: 2 cores minimum (4+ cores recommended)

RAM: 2GB minimum (4GB+ recommended)

Storage: 1GB for installation

Network: 236/8443 ports

Operating System:

Linux: Any modern distribution (RHEL, Debian, Ubuntu, CentOS, Fedora, Arch, Alpine, openSUSE)

macOS: 10.14+ (Mojave or newer)

Windows: Windows Server 2016+ or Windows 10

FreeBSD: 11.0+

Network Requirements:

Port 236/8443 (default kopano port)

Dependencies:

kopano-webapp, kopano-zpush

System Access: root or sudo privileges required

This guide supports installation on:

RHEL 8/9 and derivatives (CentOS Stream, Rocky Linux, AlmaLinux)

Debian 11/12

Ubuntu 20.04/22.04/24.04 LTS

Arch Linux (rolling release)

Alpine Linux 3.18+

openSUSE Leap 15.5+ / Tumbleweed

SUSE Linux Enterprise Server (SLES) 15+

macOS 12+ (Monterey and later)

FreeBSD 13+

Windows 10/11/Server 2019+ (where applicable)

bash

# Install EPEL repository if needed
sudo dnf install -y epel-release

# Install kopano
sudo dnf install -y kopano kopano-webapp, kopano-zpush

# Enable and start service
sudo systemctl enable --now kopano-server

# Configure firewall
sudo firewall-cmd --permanent --add-service=kopano
sudo firewall-cmd --reload

# Verify installation
kopano --version || systemctl status kopano-server

bash

# Update package index
sudo apt update

# Install kopano
sudo apt install -y kopano kopano-webapp, kopano-zpush

# Enable and start service
sudo systemctl enable --now kopano-server

# Configure firewall
sudo ufw allow 236/8443

# Verify installation
kopano --version || systemctl status kopano-server

bash

# Install kopano
sudo pacman -S kopano

# Enable and start service
sudo systemctl enable --now kopano-server

# Verify installation
kopano --version || systemctl status kopano-server

bash

# Install kopano
apk add --no-cache kopano

# Enable and start service
rc-update add kopano-server default
rc-service kopano-server start

# Verify installation
kopano --version || rc-service kopano-server status

bash

# Install kopano
sudo zypper install -y kopano kopano-webapp, kopano-zpush

# Enable and start service
sudo systemctl enable --now kopano-server

# Configure firewall
sudo firewall-cmd --permanent --add-service=kopano
sudo firewall-cmd --reload

# Verify installation
kopano --version || systemctl status kopano-server

bash

# Using Homebrew
brew install kopano

# Start service
brew services start kopano

# Verify installation
kopano --version

bash

# Using pkg
pkg install kopano

# Enable in rc.conf
echo 'kopano-server_enable="YES"' >> /etc/rc.conf

# Start service
service kopano-server start

# Verify installation
kopano --version || service kopano-server status

powershell

# Using Chocolatey
choco install kopano

# Or using Scoop
scoop install kopano

# Verify installation
kopano --version

bash

# Create configuration directory if needed
sudo mkdir -p /etc/kopano

# Set up basic configuration
sudo tee /etc/kopano/kopano.conf << 'EOF'
# Kopano Configuration
threads = 8, cache_cell_size = 1M
EOF

# Test configuration
sudo kopano -t || sudo kopano-server configtest

# Reload service
sudo systemctl reload kopano-server

bash

# Set appropriate permissions
sudo chown -R kopano:kopano /etc/kopano
sudo chmod 750 /etc/kopano

# Enable security features
# See security section for detailed hardening steps

bash

# Enable service
sudo systemctl enable kopano-server

# Start service
sudo systemctl start kopano-server

# Stop service
sudo systemctl stop kopano-server

# Restart service
sudo systemctl restart kopano-server

# Reload configuration
sudo systemctl reload kopano-server

# Check status
sudo systemctl status kopano-server

# View logs
sudo journalctl -u kopano-server -f

bash

# Enable service
rc-update add kopano-server default

# Start service
rc-service kopano-server start

# Stop service
rc-service kopano-server stop

# Restart service
rc-service kopano-server restart

# Check status
rc-service kopano-server status

bash

# Enable in /etc/rc.conf
echo 'kopano-server_enable="YES"' >> /etc/rc.conf

# Start service
service kopano-server start

# Stop service
service kopano-server stop

# Restart service
service kopano-server restart

# Check status
service kopano-server status

bash

# Using Homebrew services
brew services start kopano
brew services stop kopano
brew services restart kopano

# Check status
brew services list | grep kopano

powershell

# Start service
net start kopano-server

# Stop service
net stop kopano-server

# Using PowerShell
Start-Service kopano-server
Stop-Service kopano-server
Restart-Service kopano-server

# Check status
Get-Service kopano-server

bash

# Configure performance settings
cat >> /etc/kopano/kopano.conf << 'EOF'
threads = 8, cache_cell_size = 1M
EOF

# Apply system tuning
sudo sysctl -w net.core.somaxconn=65535
sudo sysctl -w net.ipv4.tcp_max_syn_backlog=65535

# Restart service
sudo systemctl restart kopano-server

bash

# Configure clustering (if supported)
# See official documentation for cluster setup

# Basic load balancing setup example
# Configure multiple instances on different ports

nginx

upstream kopano_backend {
    server 127.0.0.1:236/8443;
    server 127.0.0.1:{default_port}1 backup;
}

server {
    listen 80;
    server_name kopano.example.com;
    return 301 https://$server_name$request_uri;
}

server {
    listen 443 ssl http2;
    server_name kopano.example.com;

    ssl_certificate /etc/ssl/certs/kopano.example.com.crt;
    ssl_certificate_key /etc/ssl/private/kopano.example.com.key;

    location / {
        proxy_pass http://kopano_backend;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
        
        # WebSocket support (if needed)
        proxy_http_version 1.1;
        proxy_set_header Upgrade $http_upgrade;
        proxy_set_header Connection "upgrade";
    }
}

apache

<VirtualHost *:80>
    ServerName kopano.example.com
    Redirect permanent / https://kopano.example.com/
</VirtualHost>

<VirtualHost *:443>
    ServerName kopano.example.com
    
    SSLEngine on
    SSLCertificateFile /etc/ssl/certs/kopano.example.com.crt
    SSLCertificateKeyFile /etc/ssl/private/kopano.example.com.key
    
    ProxyRequests Off
    ProxyPreserveHost On
    
    ProxyPass / http://127.0.0.1:236/8443/
    ProxyPassReverse / http://127.0.0.1:236/8443/
    
    # WebSocket support (if needed)
    RewriteEngine on
    RewriteCond %{HTTP:Upgrade} websocket [NC]
    RewriteCond %{HTTP:Connection} upgrade [NC]
    RewriteRule ^/?(.*) "ws://127.0.0.1:236/8443/$1" [P,L]
</VirtualHost>

haproxy

frontend kopano_frontend
    bind *:80
    bind *:443 ssl crt /etc/ssl/certs/kopano.pem
    redirect scheme https if !{ ssl_fc }
    default_backend kopano_backend

backend kopano_backend
    balance roundrobin
    option httpchk GET /health
    server kopano1 127.0.0.1:236/8443 check
    server kopano2 127.0.0.1:{default_port}1 check backup

bash

# Set appropriate permissions
sudo chown -R kopano:kopano /etc/kopano
sudo chmod 750 /etc/kopano

# Configure firewall
sudo firewall-cmd --permanent --add-service=kopano
sudo firewall-cmd --reload

# Enable SELinux policies (if applicable)
sudo setsebool -P httpd_can_network_connect on

# Configure fail2ban
sudo tee /etc/fail2ban/jail.d/kopano.conf << 'EOF'
[kopano]
enabled = true
port = 236/8443
filter = kopano
logpath = /var/log/kopano/*.log
maxretry = 5
bantime = 3600
EOF

bash

# Generate SSL certificates
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
    -keyout /etc/ssl/private/kopano.key \
    -out /etc/ssl/certs/kopano.crt

# Configure SSL in kopano
# See official documentation for SSL configuration

PostgreSQL Backend (if applicable)

bash

# Create database and user
sudo -u postgres psql << EOF
CREATE DATABASE kopano_db;
CREATE USER kopano_user WITH ENCRYPTED PASSWORD 'secure_password';
GRANT ALL PRIVILEGES ON DATABASE kopano_db TO kopano_user;
EOF

# Configure kopano to use PostgreSQL
# See official documentation for database configuration

bash

# Create database and user
sudo mysql << EOF
CREATE DATABASE kopano_db;
CREATE USER 'kopano_user'@'localhost' IDENTIFIED BY 'secure_password';
GRANT ALL PRIVILEGES ON kopano_db.* TO 'kopano_user'@'localhost';
FLUSH PRIVILEGES;
EOF

bash

# Kernel parameters
sudo tee -a /etc/sysctl.conf << EOF
net.core.somaxconn = 65535
net.ipv4.tcp_max_syn_backlog = 65535
net.ipv4.ip_local_port_range = 1024 65535
net.core.netdev_max_backlog = 5000
vm.swappiness = 10
EOF

sudo sysctl -p

# Kopano specific tuning
threads = 8, cache_cell_size = 1M

bash

# Configure system limits
sudo tee -a /etc/security/limits.conf << EOF
kopano soft nofile 65535
kopano hard nofile 65535
kopano soft nproc 32768
kopano hard nproc 32768
EOF

yaml

# prometheus.yml configuration
scrape_configs:
  - job_name: 'kopano'
    static_configs:
      - targets: ['localhost:236/8443']
    metrics_path: '/metrics'

bash

# Basic health check script
#!/bin/bash
if systemctl is-active --quiet kopano-server; then
    echo "Kopano is running"
    exit 0
else
    echo "Kopano is not running"
    exit 1
fi

bash

# Configure log rotation
sudo tee /etc/logrotate.d/kopano << 'EOF'
/var/log/kopano/*.log {
    daily
    rotate 14
    compress
    delaycompress
    missingok
    notifempty
    create 0640 kopano kopano
    postrotate
        systemctl reload kopano-server > /dev/null 2>&1 || true
    endscript
}
EOF

bash

#!/bin/bash
# Kopano backup script
BACKUP_DIR="/backup/kopano"
DATE=$(date +%Y%m%d_%H%M%S)

mkdir -p "$BACKUP_DIR"

# Stop service (if required)
systemctl stop kopano-server

# Backup configuration
tar -czf "$BACKUP_DIR/kopano-config-$DATE.tar.gz" /etc/kopano

# Backup data (adjust paths as needed)
tar -czf "$BACKUP_DIR/kopano-data-$DATE.tar.gz" /var/lib/kopano

# Start service
systemctl start kopano-server

# Clean old backups (keep 30 days)
find "$BACKUP_DIR" -name "*.tar.gz" -mtime +30 -delete

echo "Backup completed: $BACKUP_DIR"

bash

# Stop service
sudo systemctl stop kopano-server

# Restore configuration
sudo tar -xzf /backup/kopano/kopano-config-*.tar.gz -C /

# Restore data
sudo tar -xzf /backup/kopano/kopano-data-*.tar.gz -C /

# Set permissions
sudo chown -R kopano:kopano /etc/kopano
sudo chown -R kopano:kopano /var/lib/kopano

# Start service
sudo systemctl start kopano-server

1. Service won't start:

bash

# Check logs
sudo journalctl -u kopano-server -n 100
sudo tail -f /var/log/kopano/*.log

# Check configuration
sudo kopano -t || sudo kopano-server configtest

# Check permissions
ls -la /etc/kopano
ls -la /var/lib/kopano

2. Connection refused:

bash

# Check if service is listening
sudo ss -tlnp | grep 236/8443
sudo netstat -tlnp | grep 236/8443

# Check firewall
sudo firewall-cmd --list-all
sudo iptables -L -n

# Test connection
telnet localhost 236/8443
nc -zv localhost 236/8443

3. Performance issues:

bash

# Check resource usage
top -p $(pgrep kopano-server)
htop -p $(pgrep kopano-server)

# Check connections
ss -ant | grep :236/8443 | wc -l

# Monitor I/O
iotop -p $(pgrep kopano-server)

bash

# Run in debug mode
sudo kopano -d
# or
sudo kopano-server debug

# Increase log verbosity
# Edit configuration to enable debug logging

yaml

version: '3.8'
services:
  kopano:
    image: kopano:latest
    container_name: kopano
    ports:
      - "236/8443:236/8443"
    volumes:
      - ./config:/etc/kopano
      - ./data:/var/lib/kopano
    environment:
      - kopano_CONFIG=/etc/kopano/kopano.conf
    restart: unless-stopped
    networks:
      - kopano_net

networks:
  kopano_net:
    driver: bridge

yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: kopano
spec:
  replicas: 3
  selector:
    matchLabels:
      app: kopano
  template:
    metadata:
      labels:
        app: kopano
    spec:
      containers:
      - name: kopano
        image: kopano:latest
        ports:
        - containerPort: 236/8443
        volumeMounts:
        - name: config
          mountPath: /etc/kopano
      volumes:
      - name: config
        configMap:
          name: kopano-config
---
apiVersion: v1
kind: Service
metadata:
  name: kopano
spec:
  selector:
    app: kopano
  ports:
  - port: 236/8443
    targetPort: 236/8443
  type: LoadBalancer

yaml

---
- name: Install and configure Kopano
  hosts: all
  become: yes
  tasks:
    - name: Install kopano
      package:
        name: kopano
        state: present
    
    - name: Configure kopano
      template:
        src: kopano.conf.j2
        dest: /etc/kopano/kopano.conf
        owner: kopano
        group: kopano
        mode: '0640'
      notify: restart kopano
    
    - name: Start and enable kopano
      systemd:
        name: kopano-server
        state: started
        enabled: yes
  
  handlers:
    - name: restart kopano
      systemd:
        name: kopano-server
        state: restarted

Maintenance

bash

# RHEL/CentOS/Rocky/AlmaLinux
sudo dnf update kopano

# Debian/Ubuntu
sudo apt update && sudo apt upgrade kopano

# Arch Linux
sudo pacman -Syu kopano

# Alpine Linux
apk update && apk upgrade kopano

# openSUSE
sudo zypper update kopano

# FreeBSD
pkg update && pkg upgrade kopano

# Always backup before updates
tar -czf /backup/kopano-pre-update-$(date +%Y%m%d).tar.gz /etc/kopano

# Restart after updates
sudo systemctl restart kopano-server

Regular Maintenance Tasks

bash

# Clean logs
find /var/log/kopano -name "*.log" -mtime +30 -delete

# Verify integrity
sudo kopano --verify || sudo kopano-server check

# Update databases (if applicable)
sudo kopano-update-db

# Optimize performance
sudo kopano-optimize

# Check for security updates
sudo kopano --security-check

Official Documentation: https://docs.kopano.org/

GitHub Repository: https://github.com/kopano/kopano

Community Forum: https://forum.kopano.org/

Wiki: https://wiki.kopano.org/

Comparison vs Exchange, Zimbra, Kolab, SOGo: https://docs.kopano.org/comparison

---

Note: This guide is part of the HowToMgr collection. Always refer to official documentation for the most up-to-date information.

1. Prerequisites

2. Supported Operating Systems

3. Installation

RHEL/CentOS/Rocky Linux/AlmaLinux

Debian/Ubuntu

Arch Linux

Alpine Linux

openSUSE/SLES

macOS

FreeBSD

Windows

Initial Configuration

Basic Configuration

Security Hardening

5. Service Management

systemd (RHEL, Debian, Ubuntu, Arch, openSUSE)

OpenRC (Alpine Linux)

rc.d (FreeBSD)

launchd (macOS)

Windows Service Manager

Advanced Configuration

Performance Optimization

Clustering and High Availability

Reverse Proxy Setup

nginx Configuration

Apache Configuration

HAProxy Configuration

Security Configuration

Basic Security Setup

SSL/TLS Configuration

Database Setup

PostgreSQL Backend (if applicable)

MySQL/MariaDB Backend (if applicable)

Performance Optimization

System Tuning

Resource Limits

Monitoring

Prometheus Integration

Health Checks

Log Monitoring

9. Backup and Restore

Backup Script

Restore Procedure

6. Troubleshooting

Common Issues

Debug Mode

Integration Examples

Docker Compose

Kubernetes Deployment

Ansible Playbook

Maintenance

Update Procedures

Regular Maintenance Tasks

Additional Resources

Related Groupware Guides

Kolab Installation Guide

Zimbra Installation Guide