Application Security
How does vulnerability scanning work, step by step?
A vulnerability scanner finds assets, identifies software versions, matches them to known flaws and reports. Learn the steps, limits and how to act.
Oct 18, 20264 min read
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Supply Chain Security, in plain English.
Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
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How does patch verification work from vulnerable code to a safe fix?
A fix is not done when the code compiles. Verification means the flaw is gone, nothing else broke and the release ships safely. Here are the steps.
Oct 18, 20264 min read
Application Security
How should you write and review firewall rules?
Good firewall rules deny by default, name an owner and a reason, and get reviewed on a schedule. Here is a practical way to write, order and audit them.
Oct 18, 20264 min read
Application Security
How do you troubleshoot common firewall problems?
When traffic is blocked, prove where it stops first: confirm the flow, read the logs, check rule order, state and NAT, then change one thing at a time.
Oct 18, 20265 min read
Application Security
How do you test for injection in a modern web framework?
Frameworks parameterize by default, so test the escape hatches: raw queries, dynamic sort and filter fields, process calls. Here is a practical test plan.
Oct 18, 20265 min read
Application Security
How do you streamline the vulnerability management lifecycle?
The lifecycle is know, plan, execute, verify, monitor. Streamline it with a real inventory, risk-based triage and response plans agreed in advance.
Oct 18, 20265 min read
Application Security
How do you set up a VPN? A WireGuard walkthrough
Set up a VPN by generating key pairs, creating a tunnel interface on each side and swapping public keys. This follows WireGuard's official quick start.
Oct 18, 20264 min read
Application Security
How do you set up a proxy server safely?
A proxy sits between clients and the internet, so a bad setup exposes users and logs. Learn the three proxy types and a checklist that avoids open relays.
Oct 18, 20265 min read
Application Security
How do you secure JavaScript applications from the command line?
Lock installs with npm ci, run npm audit in CI, inspect new packages before adding them, and gate builds on results. All of it works from a terminal.
Oct 18, 20264 min read
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