CentOS7禁用IPV6

• 禁用IPV6的操作步骤

Step 1: add this rule in /etc/sysctl.conf : net.ipv6.conf.all.disable_ipv6=1

Step 2: add this rule in /etc/sysconfig/network: NETWORKING_IPV6=no

Step 3: add this setting for each nic X (X is the corresponding number for each nic) in /etc/sysconfig/network-scripts/ifcfg-ethX: IPV6INIT=no

Step 4: disable the ip6tables service : chkconfig ip6tables off

Step 5: Reload the sysctl configuration:

# sysctl -p
or
# reboot

 

注意：禁用IPV6后，可能会导致某些服务无法启动,比如VSFTP，对于VSFTP，需要修改/etc/vsftpd/vsftpd.conf文件中的listen和listen_ipv6两个选项：

listen=YES

listen_ipv6=NO