configure_ssh_2fa only enabled the deprecated ChallengeResponseAuthentication
directive (removed as a usable knob in modern OpenSSH; it no longer controls
keyboard-interactive). The base tsys-sshd-config ships
KbdInteractiveAuthentication no, so on Debian 13 (OpenSSH 9.x/10.x)
keyboard-interactive stayed disabled. With AuthenticationMethods set to
"publickey,keyboard-interactive", sshd -t then failed:
Disabled method "keyboard-interactive" in AuthenticationMethods list ...
AuthenticationMethods cannot be satisfied by enabled authentication methods
which aborted provisioning under errexit.
Add the modern KbdInteractiveAuthentication yes directive alongside the
legacy one so 2FA works on both current and older OpenSSH.
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Assisted-by: GLM-5 via Crush <crush@charm.land>
setup_user_2fa wrote each user's 2FA-setup instructions to the quoted
path "~$user/2fa-setup-instructions.txt". Tilde expansion does not occur
inside double quotes, so the path was treated literally and the write
failed with "No such file or directory", aborting the whole 2FA module
(and thus provisioning) under errexit.
Resolve the home directory explicitly with `getent passwd` and use that
absolute path for both the instructions file and the chown. Skip the
user cleanly if no home directory exists.
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Assisted-by: GLM-5 via Crush <crush@charm.land>
All provisioning scripts and modules now resolve their own location via
BASH_SOURCE and derive PROJECT_ROOT_PATH from it, removing a hard
dependency on the current working directory.
- Derive PROJECT_ROOT_PATH/CONFIGFILES_PATH/MODULES_PATH/SCRIPTS_PATH
from BASH_SOURCE in SetupNewSystem.sh and every module
- Replace all curl ${DL_ROOT}/... downloads with cat of the matching
local files under ProjectCode/ConfigFiles (the dl.knownelement.com CDN
is no longer required for a git clone)
- Invoke modules by absolute path instead of cd ./Modules/X && bash ./x
- Fix secharden-audit-agents.sh: wrong path depth (../../ vs ../../..),
wrong Project-Includes glob, and ConfigFiles/AudidD -> AuditD typo,
all of which previously crashed the script
- Remove duplicate FrameworkVars source lines
Run from anywhere with: sudo bash ProjectCode/SetupNewSystem.sh
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Assisted-by: GLM-5 via Crush <crush@charm.land>
- Complete rewrite of secharden-2fa.sh with full 2FA implementation
- SSH 2FA using Google Authenticator with publickey + TOTP authentication
- Cockpit web interface 2FA with custom PAM configuration
- Webmin 2FA support with automatic detection and configuration
- User setup automation with QR codes and backup codes generation
- Gradual rollout support using nullok for phased deployment
- Automatic configuration backup and restore procedures
- Add 2fa-validation.sh security test for comprehensive validation
- Create TSYS-2FA-GUIDE.md with complete implementation documentation
- Add DEVELOPMENT-GUIDELINES.md with coding standards and best practices
- Optimize package installation with single apt-get commands for performance
The 2FA implementation provides enterprise-grade security while maintaining
usability and proper emergency access procedures. Includes comprehensive
testing, documentation, and follows established security best practices.
🤖 Generated with [Claude Code](https://claude.ai/code)
Co-Authored-By: Claude <noreply@anthropic.com>
mrcharles
Charles N Wyble