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1、systemctl enalble NetworkManager-wait-online.service 由於這個服務沒有開啟導致下面錯誤

network[798]: Bringing up loopback interface: Could not load file '/etc/sysconfig/network- scripts/ifcfg-lo'

network[798]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'

network[798]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'

network[798]: Could not load file '/etc/sysconfig/network-scripts/ifcfg-lo'

2、當在vmware中無法訪問外網時,由於沒有關閉系統防火牆的原因:chkconfig iptables off

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