InfraCaptain
Docs
Everything you need to connect your server, configure monitoring, and get the most from Captain AI.
Quick StartGuide & Installation#
Connect your first Linux server to InfraCaptain monitoring in under 3 minutes. The actual agent install takes under 60 seconds.
Create your account
Sign up at infracaptain.com. Free monitoring credits are added to your account instantly — no credit card required.
Free credits are real credits — not a timer. Use them to connect your first server right away.
Choose a monitoring plan
Click Connect a Server from your dashboard. Select Basic or Pro monitoring. Day-wise billing is available on Basic plan.
| Plan | Best For | Retention | AI Context |
|---|---|---|---|
| Free | Learning | 24h | 24h only |
| Basic | Production | 30 days | 30 days |
| Pro | Enterprise | 90 days | 90 days |
Generate deployment token
Each server gets a unique token. The full install command is generated with your token already embedded — just copy and run it.
Install the agent
SSH into your server and paste the generated command. The installer handles everything in under 60 seconds.
Option A — One command
curl -sL https://infracaptain.com/install.sh | bash -s -- --token YOUR_TOKENAutomated detection of OS, configures token and starts system service.
Option B — Verify code
curl -sL https://infracaptain.com/install.sh | bashFor hosts with restricted scripted installs. Enter code when prompted.
Verify the connection
The moment the agent sends its first heartbeat, InfraCaptain marks your server as Online. This usually takes 15–30 seconds.
View your dashboard
From CPU load to security events, everything is live and updated every 60 seconds. Captain AI is also ready from the first minute.
Overview
CPU, RAM, disk, active alerts
Performance
Historical trends & utilization
Security
SSH, open ports, file changes
Stack
Cron jobs, processes, SSL certs
Alert Configuration#
Configure when and how InfraCaptain alerts you. Alerts are enabled by default with sensible thresholds.
| Alert Type | Trigger Threshold | Severity |
|---|---|---|
| CPU high | Above 80% for 5 mins | Warning |
| RAM low | Less than 200MB free | Warning |
| Disk full predictor | Empty within 7 days | Warning |
| Cron miss | 1 consecutive missed run | Warning |
| SSL expiry | 30 days before expiry | Warning |
| SSL expiry (urgent) | 7 days before expiry | Critical |
| Hidden process | Starting with a dot (.) | Warning |
| SSH brute force | 10+ failed attempts / 5 mins | Warning |
| Server offline | No heartbeat for 3 mins | Critical |
| File integrity change | Any change to key files | Warning |
Captain AI#
Captain AI has full context on your server. Ask anything about your infrastructure in plain English.
Example Questions
- "Why is my CPU at 88%?"
- "Is there a memory leak?"
- "Why did backup.sh fail last night?"
- "Is anyone trying to break into my server?"
- "Which of my SSL certs are expiring soon?"
Data Masking
All sensitive values in application logs (IPs, emails, user IDs) are masked before being sent to the AI. Captain AI sees infrastructure signals, not your application data.
Full Artifact Context
The AI has access to process states, resource history, cron records, and log patterns for the last 30/90 days.
Security Monitoring#
Proactive detection of brute force attacks, unauthorized file changes, and hidden malicious processes.
Brute Force Detection
Monitors SSH logs for repeated failure patterns.
File Integrity
Tracks changes to critical system configurations.
Rootkit Scanner
Identifies hidden processes and suspicious behaviors.
Security Score
A daily metric based on your current server hardening.
Cron Job Monitoring#
Never miss a scheduled task again. InfraCaptain tracks every execution of your system and user crons.
- Automatic detection of all active cron jobs
- Real-time alerts for missed executions
- Historical execution logs and duration tracking
SSL & Stack Monitoring#
Monitor your entire web stack, from SSL certificates to database health and PageSpeed performance.
PageSpeed Insights
Integrated PageSpeed reports for all your connected domains, identifying slow load times before they hurt your SEO.
Right-Sizing Advisor#
Save money by identifying over-provisioned servers. The advisor calculates potential savings based on your p95 resource usage.
Uninstall the Agent#
Remove InfraCaptain from your server completely with one command.
curl -sL https://infracaptain.com/uninstall.sh | bashHistory is kept for 30 days then permanently deleted.
Supported Linux Distributions#
| Distribution | Supported Versions | Init System |
|---|---|---|
| Ubuntu | 18.04 LTS, 20.04 LTS, 22.04 LTS, 24.04 LTS | systemd |
| Debian | 9 (Stretch)+ | systemd |
| CentOS | 7, 8 | systemd |
| Rocky Linux | 8, 9 | systemd |
| AlmaLinux | 8, 9 | systemd |
| Fedora | 36+ | systemd |
Documentation Topics#
Guides, configuration references, and tutorials for every InfraCaptain feature.
Getting Started
Install the agent and connect your first server in under 3 minutes.
Alerts & Notifications
Configure when InfraCaptain alerts you and how notifications are sent.
Captain AI
Ask questions about your server in plain English. Get specific, actionable answers.
Security Monitoring
SSH brute force detection, hidden processes, and security scoring.
Cron Job Monitoring
Track every scheduled job — execution history, missed runs, and slow detection.
SSL & Stack
Certificate expiry, hostname mismatches, database health, and PageSpeed.
API Reference#
Programmatic access to your infrastructure data. Our REST API allows you to retrieve metrics, manage alerts, and integrate InfraCaptain into your own tools.
Frequently Asked
Questions#
Need More Help?
Our engineering team is ready to assist with custom configurations, complex setups, or anything not covered in the docs.
support@infracaptain.com