Nginx Proxy, CORS and Static Cache Builder
Create a local Nginx proxy snippet with optional gzip, fixed-origin CORS and caching for files served from a static root.
About this nginx proxy, cors and static cache builder
Create a local Nginx proxy snippet with optional gzip, fixed-origin CORS and caching for files served from a static root Performs protocol inspection, IP calculation, and network analysis client-side without sending probes or exposing network topology.
Protocol mechanics & network logic
Enter the original proxy JSON, choose gzip, CORS or static caching, then generate and copy. CORS uses the chosen origin, GET/HEAD/POST/OPTIONS and Content-Type/Authorization. Static extensions are served from the chosen root. The original proxy helper remains below.
Worked network diagnostic scenario
Scenario: Generate a WebSocket reverse-proxy server block without applying it.
Sample input:
Processing: Validate JSON tokens and format the fixed server block. Enable gzip for gzip on and gzip_vary on. Static root /srv/www and 86400 seconds produce root /srv/www and expires 86400s for the listed static extensions.
Illustrative output:
Addressing limits & protocol boundaries
CORS allows * or a canonical HTTP(S) origin without path; no credentials. It adds response headers and answers OPTIONS with 204, without authorization checks. Cache lifetime: integer 0–31536000 seconds; static root is an absolute ASCII path without .. segments. Static files are local, not upstream proxy-cache. Gzip includes HTML plus the listed text types; assess compression of secret-bearing responses before enabling it. Text only: no Nginx parser, files, certificates or server changes; review the entire configuration before use.
Addressing calculations and subnet models in Nginx Proxy, CORS and Static Cache Builder follow IETF RFC definitions. Ensure subnet masks and CIDR prefixes match your network topology.
Offline network inspection boundary
Address parsing and CIDR calculations in Nginx Proxy, CORS and Static Cache Builder run entirely client-side without probing external IP networks or transmitting routing data.
IETF RFC specifications & IANA registries
IETF Request for Comments (RFC) standards and IANA registry references:
- Implementation-specific browser utility or reference guide (no single governing external standard)
Nginx Proxy, CORS and Static Cache Builder verification · Audit standards
How to use it
- Enter, paste, or select your input data into the Nginx Proxy, CORS and Static Cache Builder workspace controls.
- Review parameter fields, units, or options configured for Nginx Proxy, CORS and Static Cache Builder.
- segments.
Frequently asked questions
What text does this Nginx builder actually produce?+
Original helper below: It parses one JSON input and returns one Nginx server block. The block has listen, server_name, location /, proxy_pass, and four fixed proxy_set_header lines; WebSocket true adds HTTP/1.1, Upgrade and Connection headers. It produces text only and does not contact or configure a server.
Which visible controls and input limits apply?+
Original helper below: The page provides one JSON textarea, Run locally and Load sample. serverName and upstream must be non-empty single lines. Upstream accepts only the tool’s limited HTTP or HTTPS URL pattern; port must be an integer from 1 through 65535. Missing values use fixed defaults.
How do TLS and validation boundaries actually work?+
Original helper below: With ssl true it writes listen with ssl http2 and certificate paths; otherwise it writes a plain listen line. It rejects line breaks and NUL in token fields. It does not validate DNS, certificate files, Nginx syntax, upstream reachability, duplicate hosts, Apache settings, or reload Nginx. Unquoted certificate and key paths also reject whitespace, semicolons, braces, hash signs, dollar signs, quotes and backslashes; they are not checked for existence or trust. Cache lifetime: integer 0–31536000 seconds; static root is an absolute ASCII path without dot-dot segments.
What result does the worked example produce?+
Original helper below: In the worked example, the output matched the independent example.com, 127.0.0.1:3000, port 80 and WebSocket vector exactly. That establishes this generated local text for that vector only; it does not establish a usable production reverse-proxy deployment.