> For the complete documentation index, see [llms.txt](https://docs.hivel.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hivel.ai/self-managed-hivel-deployment/virtual-private-cloud/aws/hivel-on-premises-deployment-guide-aws/prerequisites-overview/verify-prerequisites-before-starting-network-requirements.md).
# Verify Prerequisites Before Starting, Network Requirements
### Verify Prerequisites Before Starting
On the VM, run these commands to confirm you have supported versions installed:
```
# Docker
docker --version # supported: Docker >= 26.0
# Docker Compose
docker-compose --version # supported: Docker Compose >= 2.25.0
# AWS CLI
aws --version # any current v2.x
# PostgreSQL client
psql --version # any version compatible with RDS PostgreSQL 12 through 15 (see RDS Database Setup)
# Free disk space
df -h # confirm against EC2 Instance Requirements page (next)
```
All commands should print version strings with no errors. If any command says "command not found," re-run the installation step from [AWS Infrastructure Setup](https://docs.hivel.ai/self-managed-hivel-deployment/virtual-private-cloud/aws/hivel-on-premises-deployment-guide-aws/aws-infrastructure-setup-and-aws-cli-configuration).
### Network Requirements
The table below consolidates every inbound/outbound port, and purpose referenced across this guide, so you can configure security groups and any perimeter firewall in one pass instead of discovering requirements section by section.
{% hint style="warning" %}
**Important: Proxy Support**
Outbound traffic to Hivel's ECR can route through a corporate proxy with no configuration needed. If your organization requires all outbound traffic (S3, package repositories, and engineering tools) to route through a proxy, contact your Hivel representative first to confirm support.
{% endhint %}
| **Direction** | **Port/Destination** | **Purpose** |
| ------------------- | -------------------------------- | ------------------------------------------------------------------------------------- |
| Inbound | 22 | Used for secure remote access to the server via SSH. |
| Inbound | 80 | API Gateway |
| Inbound | 3000 | Hivel UI (only for direct-IP or ALB access) |
| Inbound | 4317 | Required only if integrating Claude Code |
| Inbound | 5432 | Database access from application server only (no public or external access permitted) |
| Outbound | 443 | Pull Hivel's Docker images from AWS ECR |
| Outbound (optional) | Your Jira/GitHub/GitLab instance | Integration connectivity |
{% columns %}
{% column %} Back to Deployment Decision
{% endcolumn %}
{% column %}
{% endcolumn %}
{% column %} EC2 Instance Requirements
{% endcolumn %}
{% endcolumns %}