Agent skill

julien-infra-hostinger-core

Core server management for Hostinger VPS srv759970 - SSH access, system status, maintenance tasks, and disk space reclamation. Use for any server operation, connection issues, or maintenance tasks.

View SKILL.md on GitHub Repository
Stars 163
Forks 31

Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/data/julien-infra-hostinger-core

SKILL.md

Hostinger VPS Core Management

Core infrastructure management for srv759970.hstgr.cloud.

Server Info

Property Value
Host 69.62.108.82
User automation (sudo, no reboot)
Alias srv759970
OS Ubuntu 24.04 LTS
Disk 193 GB total
RAM 16 GB

1. SSH Connection

Quick Connect

bash
ssh automation@69.62.108.82
# Or with alias
ssh srv759970

SSH Config (~/.ssh/config)

Host srv759970
    HostName 69.62.108.82
    User automation
    IdentityFile ~/.ssh/id_ed25519
    IdentitiesOnly yes
    ServerAliveInterval 60

Fix Permission Denied (Windows)

powershell
$keyPath = "$env:USERPROFILE\.ssh\id_ed25519"
$acl = Get-Acl $keyPath
$acl.SetAccessRuleProtection($true, $false)
$acl.Access | ForEach-Object { $acl.RemoveAccessRule($_) | Out-Null }
$user = [System.Security.Principal.WindowsIdentity]::GetCurrent().Name
$rule = New-Object System.Security.AccessControl.FileSystemAccessRule($user, "FullControl", "Allow")
$acl.AddAccessRule($rule)
Set-Acl $keyPath $acl

2. System Status

Quick Status Check

bash
ssh srv759970 'free -h && df -h && uptime'

Disk Space

bash
ssh srv759970 'df -h | grep -E "Filesystem|/dev/"'
ssh srv759970 'du -sh /opt/* 2>/dev/null | sort -rh | head -10'

Thresholds: < 20 GB = Warning, < 10 GB = Critical

Memory Usage

bash
ssh srv759970 'free -h'
ssh srv759970 'docker stats --no-stream --format "table {{.Name}}\t{{.MemUsage}}" | head -15'

Services Status

bash
ssh srv759970 'docker ps --format "table {{.Names}}\t{{.Status}}"'
ssh srv759970 'systemctl status nginx docker'
ssh srv759970 'pm2 list'

3. Weekly Maintenance

Docker Cleanup (Safe)

bash
ssh srv759970 << 'EOF'
echo "=== Docker Cleanup ==="
docker system df
docker image prune -f
docker volume prune -f
docker system df
EOF

Never run docker system prune -a (breaks auto-start)

System Health Check

bash
ssh srv759970 << 'EOF'
echo "=== Health Check ==="
df -h /
free -h
docker ps -a --filter "status=exited" --format '{{.Names}}'
sudo certbot certificates | grep -E "Certificate Name|Expiry Date"
EOF

4. Space Reclamation

Phase 1: Safe Cleanup (No approval needed)

bash
ssh srv759970 << 'EOF'
# Dangling images (~1GB)
docker image prune -f

# Journal logs (~400MB)
sudo journalctl --vacuum-size=100M

# Safe log cleanup
sudo truncate -s 0 /var/log/rclone-music.log
sudo truncate -s 0 /var/log/nginx-auto-docker.log
EOF

Phase 2: Moderate Cleanup (Ask user first)

bash
# Old Docker images (>30 days)
docker image prune -a --filter 'until=720h'

# Unused volumes
docker volume prune -f

Emergency Cleanup (< 5 GB available)

bash
ssh srv759970 << 'EOF'
# Find large files
find /opt -type f -size +100M -exec ls -lh {} \; 2>/dev/null | head -20

# Large container logs
find /var/lib/docker/containers -name "*-json.log" -exec ls -lh {} \; | sort -k5 -hr | head -10

# Aggressive cleanup
docker system prune -f
sudo apt clean
EOF

5. Troubleshooting

SSH Connection Issues

Problem Solution
Permission denied Fix key permissions (see above)
Connection timeout Check ping 69.62.108.82
Host key changed ssh-keygen -R 69.62.108.82

View Logs

bash
ssh srv759970 'sudo journalctl -n 100 --no-pager'
ssh srv759970 'sudo journalctl -u nginx -n 50'

Automation User Restrictions

CAN: Docker, Nginx, services, SSL, packages, file permissions CANNOT: Reboot, shutdown, modify sudo config

Quick Reference

bash
# Connect
ssh automation@69.62.108.82

# Status
ssh srv759970 'free -h && df -h && uptime'

# Docker
ssh srv759970 'docker ps && docker system df'

# Cleanup
ssh srv759970 'docker image prune -f && sudo journalctl --vacuum-size=100M'

# Logs
ssh srv759970 'sudo journalctl -n 100'

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