GateSentry
GateSentry is a free, open-source HTTP/HTTPS proxy and DNS sinkhole with a web admin dashboard for home and small networks.
What GateSentry is
GateSentry is a free, open-source HTTP/HTTPS proxy and DNS sinkhole with a web admin dashboard for home and small networks. It filters DNS using downloadable blocklists, per-device or per-user policies, and scheduled rules; safe search, keyword, and content filters are also available. Optional HTTPS inspection can match URL paths and response content types when traffic passes through the proxy and clients trust its CA certificate. Optional AI image filtering is off by default and supports xAI, OpenAI, or a configured Ollama endpoint. The dashboard includes logs, statistics, device inventory, and backup and restore functions. GateSentry can run as a Docker container on Linux or as a downloadable binary for Linux, macOS, and Windows. DNS filtering covers domains only; URL, keyword, and content rules require traffic to pass through the proxy. The maker says default settings are intended for a trusted local network, not direct internet exposure, and the admin UI uses plain HTTP. The project is licensed under Apache-2.0.
Good
- Free and open source under Apache-2.0
- Supports per-device and per-user policies
- Includes scheduled rules and safe search
- Dashboard provides logs and device inventory
- Runs on Linux, macOS, and Windows
Watch out
- Admin interface uses plain HTTP
- Defaults are not hardened for direct internet exposure
- DNS filtering applies to domains only
- Older releases are unsupported
Who it suits
GateSentry may suit home and small-network operators seeking network-wide content filtering, parental controls, privacy guarding, or domain blocking. It is best considered by people able to account for its local-network security assumptions and filtering limits.
Verdict
GateSentry combines DNS and proxy filtering with useful policy and dashboard tools for smaller networks. Its security defaults and the requirement to route traffic through the proxy for some filters need careful consideration.
Plans and prices
From GateSentry's own pricing page, checked 11 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| GateSentry | Free | Open-source · Apache-2.0 license |
The facts
Each one read from GateSentry's own pages, with the date it was checked.
What it does
- Additional features
- It includes keyword and content filters, optional AI image filtering, timed exceptions and pauses, logs, statistics, device inventory, and backup and restore features.checked 11 Oct 2026
- AI image filtering
- Optional AI image filtering is disabled by default and supports xAI, OpenAI, or an operator-configured Ollama endpoint.checked 5 Oct 2026
- AI integrations
- Optional AI image filtering supports xAI, OpenAI, or a configured Ollama endpoint.checked 11 Oct 2026
- Audience
- The project describes GateSentry as useful for network-wide content filtering, privacy guarding, parental controls, and blocking known-bad domains.checked 5 Oct 2026
- Data handling
- Proxy logs can include requested URLs and client identity, DNS logs include queried domains, and log database entries expire after a hard-coded seven-day TTL.checked 11 Oct 2026
- Deployment
- The project provides Docker images for linux/amd64 and linux/arm64 and binary downloads for Linux, macOS, and Windows.checked 11 Oct 2026
- DNS filtering
- It filters network DNS using downloadable blocklist categories and per-device or proxy-user policies.checked 11 Oct 2026
- Filtering
- It supports DNS blocklists, per-device or per-user policies, scheduled rules, safe search, keyword filters, and content filters.checked 5 Oct 2026
- Filtering limit
- DNS filtering operates on domains only; URL, keyword, and content rules require traffic to pass through the proxy.checked 11 Oct 2026
- Filtering limits
- DNS filtering works on domains only; VPNs, encrypted DNS, QUIC/HTTP/3, and other traffic paths may bypass or fall outside content inspection.checked 5 Oct 2026
- HTTPS and malware limits
- The maker states GateSentry does not provide universal HTTPS or malware coverage, and certificate-pinned clients may reject interception.checked 5 Oct 2026
- HTTPS inspection
- Optional HTTPS inspection can match URL paths and response content types when traffic is routed through the proxy and clients trust its CA certificate.checked 5 Oct 2026
- Integrations
- An optional read-only Tailscale integration can read peer status from a tailscaled process on the same Linux host.checked 5 Oct 2026
- License
- The repository identifies GateSentry as open source under the Apache-2.0 license.checked 5 Oct 2026
- Policy rules
- Rules can target all traffic, specific domains, or categories, and can include schedules and user restrictions.checked 11 Oct 2026
- Proxy filtering
- The HTTP/HTTPS proxy can match URL paths and response content types when HTTPS inspection is enabled and clients trust its installed CA certificate.checked 11 Oct 2026
- Purpose
- GateSentry is a filtering proxy and DNS server for home and small networks, with a web dashboard.checked 11 Oct 2026
- Safe search
- DNS-enforced safe search is supported for Google, Bing, DuckDuckGo, and YouTube restricted mode.checked 11 Oct 2026
- Security defaults
- The security policy says the defaults are intended for a trusted local network, the admin UI uses plain HTTP, and HTTPS MITM is disabled by default.checked 11 Oct 2026
- Security support
- The latest published release receives best-effort security support, older releases are unsupported, and the project has no long-term-support release line.checked 5 Oct 2026
- Support policy
- The latest published release receives best-effort security support, older releases are unsupported, and there is no long-term-support release line.checked 11 Oct 2026
- Visibility and recovery
- The dashboard provides logs, statistics, device inventory, and backup and restore functions.checked 5 Oct 2026
- Who it is for
- The README describes GateSentry as intended for home and small networks.checked 11 Oct 2026
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