31.linux关闭tcp6

1、打开/etc/sysctl.conf2、添加如下三条设置net.ipv6.conf.all.disable_ipv6 = 1net.ipv6.conf.default.disable_ipv6 = 1net.ipv6.conf.lo.disable_ipv6 = 13、保存修改4、执行：sudo sysctl -p```5、查看状态：```cat /proc/sys/net/ipv6/conf

一个不专业的码农

6038人浏览 · 2020-11-23 16:22:19

一个不专业的码农 · 2020-11-23 16:22:19 发布

1、打开/etc/sysctl.conf

2、添加如下三条设置

   net.ipv6.conf.all.disable_ipv6 = 1
   net.ipv6.conf.default.disable_ipv6 = 1
   net.ipv6.conf.lo.disable_ipv6 = 1

3、保存修改
4、执行：
sudo sysctl -p
5、查看状态：
cat /proc/sys/net/ipv6/conf/all/disable_ipv6

显示应该是1
6、结束
7、/etc/sysctl.conf文件优化(针对阿里云机器)

vm.swappiness = 0
kernel.sysrq = 1

net.ipv4.neigh.default.gc_stale_time = 120

# see details in https://help.aliyun.com/knowledge_detail/39428.html
net.ipv4.conf.all.rp_filter = 0
net.ipv4.conf.default.rp_filter = 0
net.ipv4.conf.default.arp_announce = 2
net.ipv4.conf.lo.arp_announce = 2
net.ipv4.conf.all.arp_announce = 2

# see details in https://help.aliyun.com/knowledge_detail/41334.html
net.ipv4.tcp_max_tw_buckets = 5000
net.ipv4.tcp_syncookies = 1
net.ipv4.tcp_max_syn_backlog = 1024
net.ipv4.tcp_synack_retries = 2


net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1