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CentOS 6 에 rsyslog7 설치하기   1. rsyslog7 설치 시 에러 발생 # yum install rsyslog7 Loaded plugins: fastestmirror, security … Resolving Dependencies --> Running transaction check ---> Package rsyslog7.x86_64 0:7.4.10-7.el6 will be installed --&..

Wildcard DNS record   https://en.wikipedia.org/wiki/Wildcard_DNS_record   Set Up WildCard DNS   If you have a dedicated IP address, you can create a wildcard A record by setting the Host Name value to an * (asterisk).   When ..

  SSL 인증서 만료일 체크 스크립트(90일 이하 도메인 알람)   yum install -y unzip wget mailx   mkdir -p /root/ssl_check   wget https://gist.github.com/stevenringo/2fe5000d8091f800aee4bb5ed1e800a6/archive/419447481702d73ead72a5d393c10fcb1ba5d0fc.zip..

CentOS7 bonding and team(teaming)      A Comparison of Features in Bonding and Team https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/sec-comparison_of_network_teaming_to_bonding CentOS / ..

  킥스타트로 설치 자동화하기     ##### selinux #####perl -pi -e 's/^SELINUX=enforcing/SELINUX=disabled/g' /etc/selinux/config   ###### reboot #####     ##### Packages Installation #####yum install -y tftp tftp-server syslinux-..