CompTIA Linux+ (XK0-005) Literacy (Beginner Level)

Topics covered

• describe DHCP centralized IP configurations
• determine how Linux interacts with the basic input/output system (BIOS) and Unified Extensible Firmware Interface (UEFI) and use related commands such as mkinitrd, dracut, vmlinuz, and grub bootloader
• list common Linux threats including social engineering, malware, flawed software, and security misconfigurations
• list common storage and network hardware issues
• manage Linux startup and shutdown using init and runlevels
• manage standard Linux file system permissions using common Linux OS commands
• outline how the CIA triad enhances IT security
• outline the purpose of various Linux directories such as /boot, /proc, /dev, /var, and so on
• outline the role authentication plays including the use of Lightweight Directory Access Protocol (LDAP)
• plan for IPv4 and IPv6 addressing needs
• recall how the init process and runlevels work in Linux
• recall various Linux firewall solutions including firewalld, iptables, nftables, and Uncomplicated Firewall (UFW)
• recognize how cryptography protects data
• recognize how to use Linux file system security commands such as chmod, chgrp, and chown
• recognize the different types of firewalls, including the web application firewall (WAF), their placement, such as in the demilitarized zone (DMZ), and when they should be used
• recognize when to use Linux file system management commands such as lsblk, fdisk, mkfs, parted, and partprobe
• secure a Linux system, including user accounts and passwords, as well as securing services and settings
• troubleshoot storage problems such as file system mounting and bringing network cards up
• use common Linux networking commands such as ip, ifconfig, hostname, arp, route, dig, nslookup, traceroute, curl, wget, nc, and netstat