Lpi - Authoritative 303-300 - LPIC Exam 303: Security, version 3.0 Reliable Exam Review

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Lpi 303-300 Exam Syllabus Topics:

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

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Lpi 303-300 Exam Overview - 303-300 Top Dumps

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q52-Q57):

NEW QUESTION # 52
What is the primary purpose of Fail2ban?

Answer: B

Explanation:
Fail2ban is a log-monitoring intrusion prevention tool that scans log files, such as those generated by SSH or web server authentication, for patterns indicating repeated failed login attempts. When a configured threshold of failures from a specific IP address is reached within a defined time window, Fail2ban dynamically inserts a firewall rule (via iptables, nftables, or another supported backend) to temporarily block that IP address, helping to mitigate brute-force attacks without requiring permanent manual firewall configuration.


NEW QUESTION # 53
Which command is used to generate a new GnuPG key pair interactively?

Answer: C

Explanation:
The command "gpg --gen-key" (or the more configurable "gpg --full-gen-key") starts an interactive process that guides the user through generating a new GnuPG key pair, prompting for the key type, key size, expiration date, and user identity information. gpg --export outputs an existing public key for sharing, gpg --encrypt encrypts data using a recipient's public key, and gpg --list- keys displays the keys already present in the local keyring rather than generating a new one.


NEW QUESTION # 54
What is the difference between a SetUID and SetGID bit?

Answer: C


NEW QUESTION # 55
Which tool can be used to check for rootkits on a Linux system?

Answer: C


NEW QUESTION # 56
What is the purpose of AIDE?

Answer: A


NEW QUESTION # 57
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