2026-03-25 20:36:46 -03:00
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Zero Trust
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Deployment
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< div class = "section-label" > Zero Trust< / div >
< h1 > Zero Trust Application Gateway< / h1 >
< p class = "section-sub" style = "margin-top:1rem" > Publish internal services securely — without exposing them to the internet.< / p >
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< h2 id = "what-is-zero-trust-here" > What is Zero Trust here?< / h2 >
< p > Traditional network security assumes that anything inside your network can be trusted.
Zero Trust flips that model: < strong > no request is trusted by default< / strong > , even if it comes from inside the VPN.< / p >
< p > In wireguard_webadmin, the Zero Trust application gateway sits in front of your internal services.
Every request must authenticate before reaching the app — the service itself never needs to be exposed directly.< / p >
< hr >
< h2 id = "how-a-request-flows" > How a request flows< / h2 >
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< div class = "flow-card-header" > < span class = "flow-card-num" > 1< / span > < strong > Client reaches gateway< / strong > < / div >
< p > The public endpoint receives the request instead of the internal service.< / p >
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< div class = "flow-card-header" > < span class = "flow-card-num" > 2< / span > < strong > Browser validation< / strong > < / div >
< p > Altcha proof-of-work can challenge automated abuse before login even starts.< / p >
< / div >
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< div class = "flow-card-header" > < span class = "flow-card-num" > 3< / span > < strong > Identity checks< / strong > < / div >
< p > Credentials, TOTP, and source IP policy are evaluated.< / p >
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< div class = "flow-card-header" > < span class = "flow-card-num" > 4< / span > < strong > Forward to upstream< / strong > < / div >
< p > Only approved requests are proxied to Grafana, Proxmox, or another internal app.< / p >
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< h2 id = "authentication-methods" > Authentication methods< / h2 >
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< div class = "auth-row-name" > TOTP / 2FA< / div >
< div class = "auth-row-desc" > Time-based one-time passwords. Works with any TOTP app — Google Authenticator, Aegis, Authy.< / div >
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< div class = "auth-row-name" > Local credentials< / div >
< div class = "auth-row-desc" > Username and password managed inside wireguard_webadmin. No external IdP required.< / div >
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< div class = "auth-row-name" > IP ACL< / div >
< div class = "auth-row-desc" > Whitelist specific IPs or subnets. VPN peers can be automatically trusted by their tunnel address.< / div >
< / div >
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< div class = "auth-row-name" > OIDC < span class = "auth-coming" > coming soon< / span > < / div >
< div class = "auth-row-desc" > Delegate authentication to Keycloak, Authentik, Google Workspace, or any OIDC-compatible provider.< / div >
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< hr >
< h2 id = "anti-brute-force-altcha-proof-of-work" > Anti-brute-force: Altcha proof-of-work< / h2 >
< p > Before any login form is shown, the browser must solve a lightweight computational challenge
(< a href = "https://altcha.org/" target = "_blank" rel = "noopener" > Altcha< / a > ).< / p >
< p > This has zero friction for real users (solved in milliseconds by modern hardware) but makes
automated credential-stuffing attacks computationally expensive at scale.< / p >
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< p > < strong > Layered protection:< / strong > Rate limiting is already in place. Proof-of-work complements it — where rate limiting bounds the request volume per IP, Altcha adds a per-request computational cost that makes distributed attacks expensive regardless of how many source IPs are involved.< / p >
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< h2 id = "use-cases" > Use cases< / h2 >
< ul >
< li > Expose < strong > Grafana< / strong > to your team without opening port 3000 to the internet< / li >
< li > Publish a < strong > Proxmox< / strong > web console behind TOTP, accessible only from your VPN< / li >
< li > Share a < strong > self-hosted app< / strong > with a client with time-limited credentials< / li >
< li > Gate any < strong > internal HTTP service< / strong > without touching its configuration< / li >
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< p > < strong > No app changes required.< / strong > The gatekeeper proxies the request transparently.
Your internal service doesn't need to implement authentication — the gateway handles it.< / p >
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< hr >
< p > VPN management and the application gateway run as a single self-hosted stack. No account at a third-party service, no outbound tunnel dependency, no traffic leaving your infrastructure.< / p >
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< li > < a href = "https://github.com/eduardogsilva/wireguard_webadmin" target = "_blank" rel = "noopener" > GitHub< / a > < / li >
< li > < a href = "https://github.com/eduardogsilva/wireguard_webadmin/discussions" target = "_blank" rel = "noopener" > Discussions< / a > < / li >
< li > < a href = "/zero-trust/" > Zero Trust< / a > < / li >
< li > < a href = "/deployment/" > Deployment< / a > < / li >
< li > < a href = "/get-involved/" > Get Involved< / a > < / li >
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