Shulou(Shulou.com)06/03 Report--

When the installation file does not have permissions

Permission setting

Sudo chmod-R 777 filename

Cannot use sudo

Pkexec chmod go-w / usr/lib/sudo/sudoers.so

When the local address cannot be opened

Turn off the firewall and try again.

Systemctl stop firewalld

You can also disable the firewall directly.

Systemctl disable firewalld

Network card configuration

Vi / etc/sysconfig/network-scripts/ifcfg-enp0s3

Restart

Systemctl restart network

View the network

Ifconfig

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