Chapter 1
Operating Systems
Course: 220 1202 Comptia A Exam Core 2
Subject: 220 1102 Comptia A Plus Exam Core 2
Chapter: Security
1. Home Router Settings
1.1 Change Default Passwords
- Description: Routers often come with default administrator usernames and passwords that are well-known and can be exploited by attackers. Changing these credentials is crucial for security.
- Real-Life Example: Changing the default password on a router to a strong, unique password prevents unauthorized users from accessing and modifying network settings.
1.2 IP Filtering
- Description: Allows or denies access to specific IP addresses on the network. This can be used to block access to unauthorized devices.
- Real-Life Example: An administrator configures IP filtering to prevent devices with certain IP addresses from accessing the network.
1.3 Firmware Updates
- Description: Firmware updates fix security vulnerabilities, improve performance, and introduce new features to routers. Regular updates are necessary to protect against emerging threats.
- Real-Life Example: A user updates their router's firmware to patch a known vulnerability that could be exploited remotely.