LPI Linux Certification/Troubleshooting Network Issues

Detailed Objective (205.3) (LPIC-2 Version 4.5) Weight: 4 Description: Candidates should be able to identify and correct common network setup issues, to include knowledge of locations for basic configuration files and commands. Key Knowledge Areas: Location and content of access restriction files Utilities to configure and manipulate ethernet network interfaces Utilities to manage routing tables Utilities to list network states. Utilities to gain information about the network configuration Methods of information about the recognized and used hardware devices System initialization files and their contents (SysV init process) Awareness of NetworkManager and its impact on network configuration Terms and Utilities: ip ifconfig route ss netstat /etc/network, /etc/sysconfig/network-scripts/ /bin/ping, ping6 traceroute, traceroute6 mtr hostname System log files such as /var/log/syslog, /var/log/messages and the systemd journal dmesg /etc/resolv.conf /etc/hosts /etc/hostname, /etc/HOSTNAME /etc/hosts.allow, /etc/hosts.deny linux