Tools

jtesta/ssh-audit

SSH server & client security auditing (banner, key exchange, encryption, mac, compression, compatibility, security, etc)

imthenachoman/how-to-secure-a-linux-server

Step-by-step guide for hardening a Linux server, covering SSH security, firewalls, intrusion detection, auditing, and system configuration to reduce…

coroner/cryptolyzer

Multi-protocol cryptographic analyzer auditing TLS, SSL, SSH, IKE, DNSSEC, and HTTP security headers. Detects 400+ cipher suites, generates JA3/HASSH…

dev-sec/chef-ssh-hardening

This chef cookbook provides secure ssh-client and ssh-server configurations.

dev-sec/puppet-ssh-hardening

This puppet module provides secure ssh-client and ssh-server configurations.

gagaltotal/cve-2026-31431-copy-fail

Automated scanner and patch helper for CVE-2026-31431, detecting vulnerable Linux hosts via SSH, verifying kernel versions, and applying kernel…