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Lpi 303-300 Exam Syllabus Topics:

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

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Lpi LPIC Exam 303: Security, version 3.0 Sample Questions (Q147-Q152):

NEW QUESTION # 147
Which PAM module checks new passwords against dictionary words and enforces complexity?
(Specially the module name only without any path.)
Solution: pam_cracklib
Determine whether the given solution is correct?

Answer: B


NEW QUESTION # 148
What is the purpose of IP sets?

Answer: B


NEW QUESTION # 149
Which PAM module can be used to restrict login access based on the combination of user, origin, and service?

Answer: C

Explanation:
The pam_access module enforces login restrictions defined in the access.conf configuration file, which specifies rules based on combinations of users or groups, the origin (such as a hostname, IP address, or tty), and often the PAM service being used. This allows administrators to build fine- grained login policies, such as allowing a particular user to log in only from specific hosts.
pam_nologin instead simply prevents all non-root logins when the /etc/nologin file is present.


NEW QUESTION # 150
What is the purpose of the GnuPG "trust level" assigned to a key, as opposed to a signature on that key?

Answer: C

Explanation:
A trust level in GnuPG is a personal, local judgment about how much a user trusts a particular key's owner to carefully and correctly verify the identity of others before signing their keys. This is distinct from a signature, which asserts that a specific key's authenticity has been verified. Trust levels (such as none, marginal, full, and ultimate) affect how GnuPG calculates the validity of other keys in the web of trust based on the chain of signatures connecting them back to the user's own key.


NEW QUESTION # 151
What is the purpose of file ownership in Linux systems?

Answer: D


NEW QUESTION # 152
......

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