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# What is a port?
# What command will set your IP configuration to 192.168.55.22/255.255.255.0 ?
# What is the difference between UDP and TCP?
# What port number is used for DHCP servers?
# What is the function of the file <code>/etc/hosts</code> ?
# What is the purpose of the file <code>/etc/sysconfig/network-scripts/ifcfg-eth0</code> ?