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7.6 yum Replacement of Domestic Sources Restore the default yum source configuration of the system: [root@adai002 Packages]# cd /etc/yum.repos.d [root@adai002 yum.repos.d]# ls dvd.repo [root@adai002 yum.repos.d]# rm -f dvd.repo [root@adai002 yum.repos.d]# ls [root@adai002 yum.repos.d]# cp ../yum.repos.d.bak/* . [root@adai002 yum.repos.d]# ls ...

Installing Cent OS7 System Installation Steps SkippedTopological connection:Preparations before installation1. Modify the host name; change the host name to the corresponding host name in the figure above.[root@localhost ~]# vim /etc/hostname2. Update the hosts file on the host and parse the host name with the following IP.192.16 ...

Setting up the Saltstack environment, we found in the process that it is very different from ansible, the functions are divided into module s and state s, which become more complex.First, you need to install master, minion, and get the fqdn of the machine because of the Zeromq used in the communication mode. This virtual machine is easy to tre ...

System Running Level runlevel View Run Level init num sets the run level Running level Meaning 0 Shutdown 1 Single-user mode, can be imagined as a security mode, mainly user system repair 2 Incomplete command-line mode 3 Complete command line mode, standard character interface 4 System retention 5 Graphic mode ...

Configuring LVS services requires at least four nodes server20.com 172.25.23.20server21.com 172.25.23.21server22.com 172.25.23.22server24.com 172.25.23.24 iptables selinux on each node needs to be turned off and iptables startup is prohibited; Start by installing the httpd service on server22.com and server24.com. [roo ...