> ## Documentation Index
> Fetch the complete documentation index at: https://syteca.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.
# System Requirements
> Syteca hardware, software, and network requirements — deployment sizing for PoC / Small / Medium / Large workloads, supported Client operating systems, port table, and per-Client performance numbers (CPU, bandwidth, storage).
This is the canonical reference for everything you need to know before deploying Syteca: how to size the Application Server, Management Tool, and database for your workload; which operating systems are supported; which network ports must be open; and what kind of CPU, bandwidth, and storage each Client generates. Use it during planning, during procurement, and as a sanity check during installation.
## Deployment sizing
Sizing depends on the number of concurrent Client sessions you'll be recording. Syteca recognizes four tiers — PoC, Small, Medium, and Large.
### Application Server, Management Tool, and Database
| Component | PoC | 10–200 sessions | 200–1,000 sessions | 1,000–10,000 sessions |
| ---------------------- | -------------------------------------- | --------------------------------- | --------------------------------- | ------------------------------------ |
| **Application Server** | 4–8 vCPU, 16 GB RAM | 4–8 vCPU, 8–16 GB RAM | 8–16 vCPU, 8–16 GB RAM | 16–32 vCPU, 8–16 GB RAM |
| **High Availability** | Optional | Optional | Optional | **Strongly recommended** |
| **Management Tool** | 4–8 vCPU, 4 GB RAM | 4–8 vCPU, 4 GB RAM | 4–8 vCPU, 4 GB RAM | 4–8 vCPU, 4 GB RAM |
| **Database** | 4–8 vCPU, 16 GB RAM | 8–16 vCPU, 24–32 GB RAM | 16–32 vCPU, 64–128 GB RAM | *(scale beyond Medium per workload)* |
| **Bandwidth** | 1 Gbps Ethernet | 1 Gbps Ethernet | 10 Gbps Ethernet | 10 Gbps Ethernet |
| **Operating systems** | Windows 10 / Server 2019 / 2022 / 2025 | Windows Server 2019 / 2022 / 2025 | Windows Server 2019 / 2022 / 2025 | Windows Server 2019 / 2022 / 2025 |
**For deployments with 1,000+ Clients, install multiple Application Servers in [High Availability / load balancing mode](/docs/administration/deployment/high-availability)** to avoid performance issues. The Strongly Recommended designation in the Large column reflects this — single-AS deployments at that scale will struggle.
### Database support
All deployment sizes support the same database engines:
| Database | Supported versions |
| -------------------------------- | ------------------ |
| **Microsoft SQL Server** | 2012 through 2022 |
| **PostgreSQL** | 13 or higher |
| **Microsoft Azure SQL Database** | *(managed)* |
For the differences between PostgreSQL and MS SQL Server in a Syteca deployment, see [Comparison of database types](/docs/administration/database/compare-databases).
### Storage sizing
Storage requirements scale with the number of concurrent Client sessions and the work pattern (24/7 always-on vs. 8/5 business hours). The values below assume 1 Client session generates an average of \~300 MB per 8-hour day (see [Performance numbers](#performance-numbers) below).
| Work pattern | PoC | Small | Medium | Large |
| ----------------------------- | ------ | ------- | ------ | ------ |
| **24/7** (always-on) | 272 GB | 5.25 TB | 27 TB | 270 TB |
| **8/5** (business hours only) | 65 GB | 1.4 TB | 7 TB | 40 TB |
**Store binary data in a shared or local folder**, not in the SQL database itself. The **SQL Database** binary storage option is only recommended for the smallest deployments — for anything beyond PoC, the data volumes accumulate too quickly. See [Configure binary storage](/docs/administration/database/database-parameters) for the options including filesystem, network share, and Amazon S3-compatible storage.
## Client requirements
Syteca Clients are lightweight endpoint agents. The performance impact on each monitored endpoint is minimal — see [Performance numbers](#performance-numbers) below for the specifics.
### Windows Clients
| Versions supported | Hardware | Additional applications |
| ------------------------------------------------------------------------------------ | ----------------------------------- | -------------------------------------------------------------------- |
| **Windows 11**, Windows 11 Enterprise LTSC 2024, Windows 11 IoT Enterprise LTSC 2024 | **CPU:** 2.4 GHz or higher | *(For PAM customers only — see right column)* |
| **Windows 10**, Windows 8.1, Windows 8, Windows 7 | **RAM:** 4 GB *(35 MB per session)* | • **PuTTY** — for Unix (SSH) secrets |
| **Windows Server 2025**, 2022, 2019, 2016, 2012 | **Ethernet:** 100 Mbps / 1 Gbps | • **SQL Server Management Studio (SSMS) 18–20** — for MS SQL secrets |
| | | • **Google Chrome** in Incognito mode — for Web account secrets |
| | | • **WinSCP** — for [File Transfer](/docs/pam/secrets/file-transfer) |
### macOS Clients
| Versions supported | Hardware |
| ------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------ |
| **macOS Tahoe 26**, Sequoia 15, Sonoma 14, Ventura 13, Monterey 12 | **CPU:** 2.4 GHz Intel Core 2 Duo or higher / M1, M2, M3, M4. **RAM:** 2 GB. **Ethernet:** 100 Mbps / 1 Gbps |
### Linux Desktop Clients (with X Window System GUI)
| Distribution | Versions |
| ------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Ubuntu** | 24.04 LTS, 22.04 LTS, 20.04 LTS, 18.04.1 LTS, 16.04.5 LTS, 16.04.2, 14.04.5 LTS, 14.04.2, 14.04 LTS, 12.04.1 *(including Wayland for: 24.04 LTS, 22.04 LTS, 24.10, 23.10, 23.04, 22.10)* |
| **Red Hat (RHEL)** | 9.0, 8.8, 8.0–8.4, 7.0–7.6, 6.0–6.10 |
| **CentOS** | 8, 7.1–7.5, 6.1–6.9 |
| **Oracle Linux** | 9.1, 8.5–8.7, 5.26–7.x |
| **Amazon Linux** | 2.x |
| **AlmaLinux** | 9.3–9.4, 9.7 |
| **openSUSE** | 15 (SP1, SP2, SP3, SP4, SP5, SP6), 12 (SP1, SP2, SP3, SP4, SP5) |
**Hardware:** CPU 2.4 GHz or higher, RAM 4 GB (35 MB per session), Ethernet 100 Mbps / 1 Gbps, **Linux Kernel 2.6.32 or higher**.
### Linux Server Clients (as a Terminal Server)
| Distribution | Versions |
| ------------------ | ---------------------------------------------------------------------------------- |
| **Debian** | 12.11, 11.0, 9.0, 8.0, 7.0 |
| **Ubuntu** | 24.04 LTS, 22.04 LTS, 22.04, 20.04, 18.04, 16.04, 14.04 |
| **Red Hat (RHEL)** | 10.0, 9.0, 8.8, 8.0–8.4, 7.0–7.6, 6.0–6.10 |
| **CentOS Stream** | 9, 8 |
| **CentOS** | 8, 7.1–7.5, 6.1–6.9 |
| **Oracle Linux** | 9.4, 9.1, 8.5–8.7, 5.26–7.x |
| **Amazon Linux** | 2.x |
| **AlmaLinux** | 9.3–9.4, 9.7, 10.1 |
| **openSUSE** | 15 (SP1–SP6), 12 (SP1–SP5), 11 (SP2, SP3, SP4) |
| **Solaris** | 11.4 (x86\_64), 11.0–11.3 (Sparc), 10.0 (SPARC) — Global and Whole-root zones only |
| **AIX** | 7.3, 7.2, 7.1 |
## Network requirements
Open these TCP ports in Windows Firewall (or your equivalent firewall product) for Syteca to operate correctly. The exact set depends on your deployment topology.
| Direction | Protocol/Port | Required? | Purpose |
| -------------------------------------------- | --------------------- | ------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **Endpoint Client → Application Server** | TCP/9447 | **Required** | Session data from Clients to the Application Server. **In SaaS:** required for Windows Clients only. |
| **Application Server → Management Tool** | TCP/22713 & TCP/22714 | If on different machines | Management Tool connection to Application Server, when they're on separate hosts. |
| **Management Tool → browser (HTTPS)** | TCP/443 | If on same machine | Browser access to the Management Tool. **In SaaS:** required for Windows, macOS, **and** Linux Clients to check for certificate updates regularly. **Also required in SaaS** for macOS and Linux Clients to send session data to the Application Server (replacing TCP/9447 in this case). |
| **Application Server → Endpoint Clients** | TCP/135 & TCP/445 | For remote install | Required only when installing Windows Clients remotely from the Management Tool. |
| **Application Server → PostgreSQL database** | TCP/5432 | If on different machines | Application Server to PostgreSQL database connection, when on separate hosts. |
| **Application Server → MS SQL database** | TCP/1433 | If on different machines | Application Server to MS SQL database connection, when on separate hosts. |
**In SaaS only:** TCP/443 plays a dual role — it's the Management Tool browser port, but it also handles certificate-update checks for all Client OSes, and is the data channel for macOS and Linux Clients (replacing TCP/9447 used by Windows Clients).
The Windows Firewall configuration for the Application Server is normally automated during installation — see [Install the Application Server](/docs/administration/deployment/install-application-server#configure-windows-firewall-manually) for the manual configuration procedure if needed.
## Performance numbers
The metrics below describe per-Client resource usage. They drive the [storage sizing](#storage-sizing) calculations above and help you plan bandwidth and disk capacity.
### Per-Client resource usage
| Parameter | Value |
| --------------------------------------------------- | --------------------------------------------------------------------------------------------- |
| **Average CPU consumption** *(1 hour of operation)* | 0.5% per Client session |
| **Peak CPU consumption** | Up to 5% per Client session |
| **Bandwidth requirements** | 128 Kbit/s |
| **Average data volume** | \~300 MB per 8-hour work day per Client *(most Client types — Linux SSH sessions often more)* |
| **Peak data volume** | 15–25 MB per intensive work hour per Client |
### Windows Client data volume
| Scenario | Data volume |
| ----------------------------------------------------------------------- | ----------- |
| **1 Client session/day** *(average)* | 300 MB |
| **1 Client session/day** *(maximum, highest screen capture resolution)* | 5,172 MB |
| **100 Client sessions/day** *(average)* | 30 GB |
### Linux Client data volume
*X Window System sessions only — remote SSH sessions often generate more data.*
| Scenario | Data volume |
| ----------------------------------------------- | ----------- |
| **1 Client session per 15 minutes** *(average)* | 8 MB |
| **1 Client session per day** *(average)* | 100 MB |
Performance measured with one session using **Full HD display resolution** and the **default** screen capture and color settings. Real-world numbers vary with monitor count, screen activity, color depth, and Client configuration.
**Reduce data volume by tuning recording settings.** Default settings are tuned for visibility — most deployments can significantly reduce data volume without losing the recording fidelity they actually need. Adjustable parameters live on the [Windows Clients](/docs/administration/clients/windows), [macOS Clients](/docs/administration/clients/macos), and [Linux Clients](/docs/administration/clients/linux) configuration pages, including user activity recording parameters, monitoring filters, and (for Linux) per-command output limits.
## Related
The component structure of a Syteca deployment.
Fresh installation with database, certificate, and firewall setup.
Scale-out with multiple Application Server instances, load balancing, and disaster recovery.
Citrix, VMware Horizon, Microsoft AVD, Amazon WorkSpaces — with floating licensing.