Version
/etc/issuehttp://blueeden.tistory.com/15
Language
/etc/sysconfig/i18n locale -a echo $LANGhttp://hupo04.ifull.kr/zbxe/?mid=b_linux&sort_index=voted_count&order_type=desc&document_srl=259
DNS
nslookup dig/etc/hosts
/etc/init.d/named start
firewall, access control
/etc/hosts.deny /etc/hosts.allow iptablesboot, upgrade
yum upgrade apt-get dist-upgrade/boot/grub/grub.conf