2.1 PKI Certs Auth Linux Hardening

These are the exam objectives planned.

Managing public key infrastructure (PKI) certificates - Public key - Private key - Self-signed certificate - Digital signature - Wildcard certificate - Hashing - Certificate authorities • Certificate use cases - Secure Sockets Layer (SSL)/ Transport Layer Security (TLS) - Certificate authentication - Encryption • Authentication - Tokens - Multifactor authentication (MFA) - Pluggable authentication modules (PAM) - System Security Services Daemon (SSSD) - Lightweight Directory Access Protocol (LDAP) - Single sign-on (SSO) • Linux hardening - Security scanning - Secure boot • UEFI - System logging configurations - Setting default umask - Disabling/removing insecure services - Enforcing password strength - Removing unused packages - Tuning kernel parameters - Securing service accounts - Configuring the host firewall

Have notes of any of the following? Feel free to contribute!