Sankofa/docs/proxmox/SSH_ACCESS_COMMANDS.md

SSH Access Commands for Proxmox Nodes

Date: 2025-12-13
Status: ✅ READY

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Quick Reference

Site-1 (ML110-01)

ssh root@192.168.11.10

Site-2 (R630-01)

ssh root@192.168.11.11

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Detailed Commands

1. SSH to ML110-01 (Site-1)

Basic SSH:

ssh root@192.168.11.10

With hostname (if DNS configured):

ssh root@ml110-01

With SSH key (if configured):

ssh -i ~/.ssh/proxmox_key root@192.168.11.10

With specific options:

ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@192.168.11.10

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2. SSH to R630-01 (Site-2)

Basic SSH:

ssh root@192.168.11.11

With hostname (if DNS configured):

ssh root@r630-01

With SSH key (if configured):

ssh -i ~/.ssh/proxmox_key root@192.168.11.11

With specific options:

ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@192.168.11.11

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Connectivity Verification

Test Network Connectivity

Ping ML110-01:

ping -c 3 192.168.11.10

Ping R630-01:

ping -c 3 192.168.11.11

Test SSH Access

Test ML110-01 SSH:

ssh -o ConnectTimeout=5 root@192.168.11.10 'hostname'
# Expected output: ML110-01 or similar

Test R630-01 SSH:

ssh -o ConnectTimeout=5 root@192.168.11.11 'hostname'
# Expected output: R630-01 or similar

Test Proxmox API Access

ML110-01 API:

curl -k https://192.168.11.10:8006/api2/json/version
# Requires authentication - will show API version if accessible

R630-01 API:

curl -k https://192.168.11.11:8006/api2/json/version
# Requires authentication - will show API version if accessible

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Useful Commands After SSH

System Information

# Proxmox version
pveversion

# System information
hostnamectl
uname -a

# CPU information
lscpu

# Memory information
free -h

# Disk information
df -h
lsblk

Proxmox Status

# Cluster status
systemctl status pve-cluster

# Proxmox services
systemctl status pveproxy
systemctl status pvedaemon

# List all VMs
qm list

# List all containers
pct list

Storage Information

# Storage status
pvesm status

# Storage details
pvesm list

# Ceph status (if configured)
ceph status
ceph df
ceph osd tree

Network Information

# Network interfaces
ip addr show

# Network configuration
cat /etc/network/interfaces

# Network bridges
brctl show

# Routing table
ip route show

VM Management

# List all VMs
qm list

# Get VM details
qm config <VMID>

# VM status
qm status <VMID>

# Start VM
qm start <VMID>

# Stop VM
qm stop <VMID>

# Restart VM
qm reboot <VMID>

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SSH Configuration (Optional)

Create SSH Config Entry

Add to ~/.ssh/config:

Host ml110-01
    HostName 192.168.11.10
    User root
    IdentityFile ~/.ssh/proxmox_key
    StrictHostKeyChecking no

Host r630-01
    HostName 192.168.11.11
    User root
    IdentityFile ~/.ssh/proxmox_key
    StrictHostKeyChecking no

Then use:

ssh ml110-01
ssh r630-01

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Troubleshooting

Connection Refused

Check if SSH is running:

# On the Proxmox node
systemctl status ssh
systemctl status sshd

Check firewall:

# On the Proxmox node
iptables -L -n | grep 22
ufw status  # if using ufw

Authentication Issues

Check SSH key permissions:

chmod 600 ~/.ssh/id_rsa
chmod 644 ~/.ssh/id_rsa.pub

Test with password:

ssh -o PreferredAuthentications=password root@192.168.11.10

Network Issues

Check routing:

# From your machine
traceroute 192.168.11.10
traceroute 192.168.11.11

Check if port is open:

nc -zv 192.168.11.10 22
nc -zv 192.168.11.11 22

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Security Notes

Best Practices

1. Use SSH Keys: Avoid password authentication

   ssh-keygen -t rsa -b 4096 -f ~/.ssh/proxmox_key
   ssh-copy-id -i ~/.ssh/proxmox_key.pub root@192.168.11.10
   ssh-copy-id -i ~/.ssh/proxmox_key.pub root@192.168.11.11
   

2. Disable Root Login: Create a non-root user with sudo

3. Use Strong Passwords: If password auth is required

4. Limit SSH Access: Use firewall rules to restrict access

5. Use VPN: For production environments

Current Configuration

• User: root (default Proxmox user)
• Port: 22 (default SSH port)
• Authentication: Password or key-based
• Network: 192.168.11.0/24

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Quick Access Script

Use the provided script:

./scripts/ssh-proxmox-nodes.sh

This displays all SSH commands and verification steps.

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Related Documentation

• Proxmox Base Configuration Review
• Pre-Deployment Actions

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Last Updated: 2025-12-13
Status: ✅ READY