Infrastructure●●Solid
My VPS got DDoS'd into a kernel panic, so I learned XDP
Drops packets in 34-65ns at NIC level before fail2ban ever sees them.
WizardryNiche Gem
kennethhh
103mo ago
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GitHub Repository
Lightweight SPA TOTP port knocking daemon
4 starsC
Totpgate – Single-packet authorization via TOTP
by tpimenta·May 30, 2026·1 point·0 comments
AI Analysis
●●SolidWizardryNiche GemSolve My Problem
Direct netlink manipulation beats fwknop complexity for single-packet authorization.
Strengths
- •Direct netlink communication avoids libnl dependency bloat and external binary requirements.
- •Capability dropping lets the daemon manipulate rules without running as root.
- •TOTP prevents replay attacks common in traditional port knocking sequences.
Weaknesses
- •Linux-only due to netlink reliance, no Windows or macOS support.
- •Client clock skew could lock users out without NTP synchronization.
Category
Target Audience
Sysadmins, DevOps engineers, security-conscious developers
Similar To
fwknop · PortKnocker
Post Description
I created a stand-alone SPA port knocking using TOTP algorithm. It also don't rely on any external binary.
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