关闭防火墙

[root@localhost ~]# service iptables stopiptables: Flushing firewall rules: [ OK ]iptables: Setting chains to policy ACCEPT: filter [ OK ]iptables: Unloading modules: [ OK ]

如果此时无法使用scp命令，可以使用以下命令检测是否安装openssh

#yum install -y openssh-clients2.安装全局#yum install -y openssh