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Lpi 303-300 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Threats and Vulnerability Assessment3%- Threat Analysis
  • 1. Credential and confidentiality threats
  • 2. Network threats
  • 3. Host-based threats
  • 4. Application threats
- Vulnerability Assessment
  • 1. Security scanning
  • 2. Risk identification
  • 3. OpenVAS
Topic 2: Access Control8%- Authentication and Authorization
  • 1. Centralized authentication
  • 2. Multi-factor authentication
  • 3. PAM
- Mandatory Access Control
  • 1. SELinux management
  • 2. Policy enforcement
  • 3. AppArmor configuration
- Discretionary Access Control
  • 1. POSIX ACLs
  • 2. Extended attributes
  • 3. File permissions
Topic 3: Network Security12%- Packet Filtering
  • 1. iptables and ip6tables
  • 2. IP sets
  • 3. NAT and connection tracking
  • 4. nftables awareness
- Virtual Private Networks
  • 1. WireGuard
  • 2. OpenVPN
  • 3. IPsec and strongSwan
- Network Intrusion Detection
  • 1. Snort
  • 2. Kismet
  • 3. tcpdump
  • 4. Wireshark
- Network Hardening
  • 1. Secure network services
  • 2. TCP wrappers and service restrictions
Topic 4: Cryptography8%- OpenPGP
  • 1. Manage GnuPG keys
  • 2. Sign and encrypt data
  • 3. Web of trust concepts
- X.509 Certificates and Public Key Infrastructures
  • 1. Manage certificate authorities
  • 2. Create and manage certificates
  • 3. Certificate revocation and validation
- Data Encryption
  • 1. Use LUKS and dm-crypt
  • 2. Secure data transmission
  • 3. Encrypt files and storage devices
Topic 5: Host Security9%- Host Hardening
  • 1. Service hardening
  • 2. Secure boot process
  • 3. Kernel runtime protection
- Host Intrusion Detection
  • 1. AIDE integrity checking
  • 2. Linux Audit system
  • 3. Rootkit detection tools
  • 4. Malware detection
- Resource Control
  • 1. cgroups
  • 2. Process resource management
  • 3. ulimits

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q68-Q73):

NEW QUESTION # 68
Which of the following lines in an OpenSSL configuration adds an X 509v3 Subject Alternative Name extension for the host names example.org and www.example.org to a certificate?

Answer: B


NEW QUESTION # 69
Which of the following commands makes the contents of the eCryptfs encrypted directory ~/Private available to the user?

Answer: C


NEW QUESTION # 70
Which OpenVPN configuration directive specifies that the tunnel should operate at Layer 3, routing IP packets rather than bridging Ethernet frames?

Answer: C

Explanation:
The "dev tun" directive configures OpenVPN to create a Layer 3 (routed) tunnel interface, which encapsulates and routes IP packets between the client and server. In contrast, "dev tap" creates a Layer 2 (bridged) tunnel interface that carries entire Ethernet frames, allowing broadcast traffic and non-IP protocols to pass through the tunnel, which is useful for certain bridging scenarios but generally has more overhead than a routed tun-based configuration.


NEW QUESTION # 71
An X509 certificate contains the following information:
X509v3 Basic Constraints: critical CA:TRUE, pathlen:0
Which of the following statements are true regarding the certificate?
(Choose THREE correct answers.)

Answer: A,C,D


NEW QUESTION # 72
Which command included in the Linux Audit system provides searching and filtering of the audit log? (Specify ONLY the command without any path or parameters.) Solution: ausearch Determine whether the given solution is correct?

Answer: A


NEW QUESTION # 73
......

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