ipv6

# 删除可能存在的 IPv6 设置，确保配置干净
sed -i '/net.ipv6.conf.all.disable_ipv6/d' /etc/sysctl.conf
sed -i '/net.ipv6.conf.default.disable_ipv6/d' /etc/sysctl.conf
sed -i '/net.ipv6.conf.lo.disable_ipv6/d' /etc/sysctl.conf

# 添加禁用 IPv6 的配置
echo "net.ipv6.conf.all.disable_ipv6=1" >>/etc/sysctl.conf
echo "net.ipv6.conf.default.disable_ipv6=1" >>/etc/sysctl.conf
echo "net.ipv6.conf.lo.disable_ipv6=1" >>/etc/sysctl.conf

# 使更改生效
sysctl -p >/dev/null 2>&1