CentOS7 yum.repos.d 경로 변경

*CentOS 7에서 패키지를 설치시, 더 이상 기본 미러서버를 지원하지 않음 국내 미러 서버로 변경해야 함

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1. 미러 서버 경로 변경

vi /etc/yum.repos.d/CentOS-Base.repo

:%s/mirror.centos.org/mirror.kakao.com

[base] baseurl=http://mirror.kakao.com/centos/$releasever/os/$basearch/ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

[extras] baseurl=http://mirror.kakao.com/centos/$releasever/extras/$basearch/ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

[updates] baseurl=http://mirror.kakao.com/centos/$releasever/updates/$basearch/ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

[centosplus] baseurl=http://mirror.kakao.com/centos/$releasever/centosplus/$basearch/ gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7

2. 필요 패키지 설치

yum -y install nc lsof wget curl tar bzip2 gzip unzip psmisc procps tree bind-utils net-tools tcpdump sudo

3. Linux-TimeZone 변경

date

ln -sf