设置主机名：
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hostnamectl set-hostname CHANGE_YOUR_HOSTNAME_HERE |
查看当前主机信息：
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hostnamectl status |
CentOS7 80 端口开启远程访问
运行如下命令：
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$ sudo firewall-cmd --zone=public --add-port=80/tcp --permanent $ sudo firewall-cmd --reload |
参考文章：http://ask.xmodulo.com/open-port-firewall-centos-rhel.html
CentOS Missing separate debuginfos, use: debuginfo-install glibc…
I am using CentOS6.4. When I was debugging a piece of c code, it said “Missing separate debuginfos, use: debuginfo-install glibc…”
After asking Google. I finally solved the problem.
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yum --enablerepo=debug install glibc-debuginfo |