Centos7下常用配置命令

1.禁用ipv6

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 && service network restart
or
# reboot

验证ipv6是否成功禁用

方法1

# cat /proc/sys/net/ipv6/conf/all/disable_ipv6

If the output is 0, IPv6 is enabled.

If the output is 1, IPv6 is already disabled.

方法2

ifconfig命令查看网卡信息，是否包含inet6信息

如果不包含，则表示禁用成功