net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syncookies = 1 net.ipv4.tcp_syncookies = 1net.ipv4.tcp_syn
时间: 2023-05-01 14:01:39 浏览: 76
这是一段 Linux 内核参数设置,其中 "net.ipv4.tcp_syncookies" 是用于启用 TCP SYN Cookies 的参数,值为 1 表示启用。这是一种防止 SYN Flood 攻击的技术。这段代码重复了很多次,可以简化为 "net.ipv4.tcp_syncookies = 1"。
相关问题
$ cat /proc/sys/net/ipv4/tcp_syncookies 哪里查看
你可以在 Linux 系统中的终端中执行该命令,用于查看当前系统是否启用了 TCP SYN Cookies。具体操作步骤如下:
1. 打开终端:在 Linux 系统中,你可以使用快捷键 `Ctrl+Alt+T` 快速打开一个终端窗口。
2. 输入命令:在终端中输入以下命令:
```
cat /proc/sys/net/ipv4/tcp_syncookies
```
3. 查看结果:执行命令后,终端会输出一个数字。如果该数字为 `0`,则表示 TCP SYN Cookies 被禁用;如果该数字为 `1`,则表示 TCP SYN Cookies 被启用。
注意:执行该命令需要具有管理员权限(root 权限)。
$ cat /proc/sys/net/ipv4/tcp_syncookies
这个命令可以查看系统的 TCP SYN Cookies 开启状态。如果输出为 1 表示开启,如果输出为 0 表示关闭。TCP SYN Cookies 是一种用于防范 SYN Flood 攻击的机制,当开启 TCP SYN Cookies 时,TCP 协议栈会在收到 SYN 请求时利用一定的算法生成一个加密的 Cookie 值,将其封装到 SYN/ACK 响应包中,发送给客户端。客户端收到 SYN/ACK 响应包后需要进行解密验证,如果验证通过,才会发送 ACK 响应包,建立连接。