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/
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