linux centos ssh命令行中，测试远程ipv6的连通性方法，iptables？ 关闭系统ip6tables防火墙
安装telnet测试工具yum -y install telnet
测试命令
telnet 2001:19f0:6801:d75:5400:1ff:fea5:1eaa
返回报错
# telnet 2001:19f0:6801:d75:5400:1ff:fea5:1eaa
Trying 2001:19f0:6801:d75:5400:1ff:fea5:1eaa...
telnet: connect to address 2001:19f0:6801:d75:5400:1ff:fea5:1eaa: Permission denied
看起报错，感觉是这vps服务器有问题。
将所有ip6tables以序号标记显示，执行：
ip6tables -L -n --line-numbers
后来了解到，由于centos系统有两个防火墙，把ipv6防火墙关闭即可
service ip6tables stop
chkconfig ip6tables off
应该恢复正常，在次测试，确定已经正常工作。
# telnet 2001:19f0:6801:d75:5400:1ff:fea5:1eaa
Trying 2001:19f0:6801:d75:5400:1ff:fea5:1eaa...
telnet: connect to address 2001:19f0:6801:d75:5400:1ff:fea5:1eaa: Connection refused
#
页:
[1]