Deterministically redact inline Environment= variables, EnvironmentFile key-value secrets, ExecStart CLI flags (--password, --api-key, --token), and embedded PostgreSQL/Redis connection URIs inside systemd unit files and systemctl show outputs entirely in browser memory.
Process and sanitize Systemd Unit payloads 100% privately inside browser memory
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Supports CSV, JSON, TXT, XML & Log Streams
systemctl cat app.service | sed -E 's/(Environment=.*(KEY|TOKEN|SECRET|PASS)=)[^ "\n]+/\1[REDACTED]/Ig'⚠️ Why Naive CLI / Regex Fails: Simple regex misses ExecStart inline flags (--password=), quoted multi-var Environment= lines, and drop-in overrides.
🛡️ Pre-LLM & Ticket Safety: Sanitize Systemd Unit (['Systemd .service / .socket / .timer Units') in local browser RAM before pasting into ChatGPT, Claude, Cursor, or Jira support tickets.
Core capabilities built into 085-systemd-unit-env-secret
Parses quoted and space-delimited Environment="KEY=VAL" directives alongside standalone EnvironmentFile key-value lines without corrupting systemd specifiers (%i, %H, %u).
Automatically detects and masks inline command-line secrets such as --password=, --token=, --secret-key=, -p, and Basic Auth headers passed directly to daemon binaries.
Neutralizes user:password credentials embedded inside postgres://, mysql://, redis://, amqps://, and mongodb+srv:// endpoints while preserving hostnames and ports for debugging.
Replaces identical secret tokens across main .service files and systemd drop-in overrides (/etc/systemd/system/*.service.d/override.conf) with deterministic HMAC hashes.
Zero configuration, zero cloud server dependencies, instant execution.
See why merchants and prosumers switch from monthly subscriptions to our local buyout.
| Feature / Metric | 🛡️ SystemdShield Studio | ☁️ Cloud SaaS (CyberChef) |
|---|---|---|
| Data Egress & Host Privacy | 🛡️ 0 Bytes Uploaded (100% Local Browser RAM) | ☁️ Cloud SaaS Control Plane & External API Sync |
| Systemd ExecStart CLI Flag Scrubbing | 🛡️ Native AST-Style Directive & CLI Flag Tokenizer | ☁️ Manages Flat Key-Value Env Vars Only |
| Drop-In Override HMAC Correlation | 🛡️ Deterministic 8-Hex HMAC-SHA256 Token Matching | ☁️ No Static Unit Dump Redaction Mode |
| Air-Gapped Bastion Deployment | 🛡️ Single-File Offline HTML Appliance (Zero Deps) | ☁️ Requires Outbound HTTPS & CLI Daemon Auth |
Eliminate vendor lock-in and cloud upload security risks.
Why pay monthly recurring SaaS fees for simple systemd unit tools? Switch to SystemdShield Studio for a single $19.00 buyout.
Cloud SaaS uploads private data to cloud servers. We process 100% locally on your machine.
Process large systemd unit files instantly without waiting for cloud server roundtrips.
Deep technical breakdown driving our client-side productivity engine.
Processes 085-systemd-unit-env-secret structures directly inside isolated browser memory.
Ensures zero 085-systemd-unit-env-secret bytes touch external API servers or third-party storage.
Parses high-throughput 085-systemd-unit-env-secret records in real-time with sub-millisecond response times.
Full compliance with international privacy mandates through total data sovereignty.
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Everything you need to know about privacy, local memory execution, and buyouts.
SystemdShield parses [Unit], [Service], and [Install] sections line-by-line, isolating sensitive values inside Environment=, EnvironmentFile key-value pairs, and ExecStart CLI flags while keeping directive names, systemd specifiers (%i, %H), and backslash continuations intact.
Never. All parsing, HMAC-SHA256 token hashing, and ExecStart credential scrubbing execute 100% locally inside your browser's volatile RAM. Zero bytes are transmitted to any external server.
Yes. Beyond Environment= assignments, SystemdShield detects and masks --password, --api-key, --jwt-secret, Bearer tokens, and user:password segments inside postgres://, mysql://, redis://, and amqps:// URIs.
Enable HMAC-SHA256 Correlation Mode. Identical plaintext credentials produce the exact same 8-character deterministic digest tag (e.g., [REDACTED_ENV_9f4a2c11]), letting you verify override precedence without exposing secrets.
Doppler is a cloud secret manager that requires agent setup and costs $21/user/month. When an SRE needs to sanitize an existing systemctl cat or supportconfig dump for a vendor ticket in 5 seconds, SystemdShield works offline for a $19 one-time buyout.