choury

还是先看下 iptables 的原理吧
你这第一条命令的效果是，把来源 ip 是 192.168.1.32 的 tcp 报文，目的地址改成 192.168.1.31:1234; 第二条命令的效果是，把所有发到 192.168.1.31 的报文，来源 ip 改成自己网卡的 ip 。
先不论 A 在 1234 端口提供的是何种代理，按照你这个做法，A 拿到这个 tcp 报文之后，它怎么知道这个包的原始目标是什么？

老实搞个前台服务，在状态栏保留个常驻通知，其他路子已经基本都被堵死了，除非你能定制 rom

要是能让你这样搞，那些计算卡卖给谁

为啥不用各发型版都自带的 stress-ng 呢，功能还更多

就是个员工监控软件

@cat 源里已经修了，要么你没加 security 仓库，要么你用的 mirror 同步有延迟
```
sudo apt upgrade
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done
The following packages will be upgraded:
openssh-client openssh-server openssh-sftp-server ssh
4 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 1,687 kB of archives.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
Get:1 http://deb.debian.org/debian-security bookworm-security/main amd64 openssh-sftp-server amd64 1:9.2p1-2+deb12u3 [65.8 kB]
Get:2 http://deb.debian.org/debian-security bookworm-security/main amd64 openssh-server amd64 1:9.2p1-2+deb12u3 [456 kB]
Get:3 http://deb.debian.org/debian-security bookworm-security/main amd64 openssh-client amd64 1:9.2p1-2+deb12u3 [991 kB]
Get:4 http://deb.debian.org/debian-security bookworm-security/main amd64 ssh all 1:9.2p1-2+deb12u3 [174 kB]
Fetched 1,687 kB in 2min 20s (12.0 kB/s)
Reading changelogs... Done
Preconfiguring packages ...
(Reading database ... 94393 files and directories currently installed.)
Preparing to unpack .../openssh-sftp-server_1%3a9.2p1-2+deb12u3_amd64.deb ...
Unpacking openssh-sftp-server (1:9.2p1-2+deb12u3) over (1:9.2p1-2+deb12u2) ...
Preparing to unpack .../openssh-server_1%3a9.2p1-2+deb12u3_amd64.deb ...
Unpacking openssh-server (1:9.2p1-2+deb12u3) over (1:9.2p1-2+deb12u2) ...
Preparing to unpack .../openssh-client_1%3a9.2p1-2+deb12u3_amd64.deb ...
Unpacking openssh-client (1:9.2p1-2+deb12u3) over (1:9.2p1-2+deb12u2) ...
Preparing to unpack .../ssh_1%3a9.2p1-2+deb12u3_all.deb ...
Unpacking ssh (1:9.2p1-2+deb12u3) over (1:9.2p1-2+deb12u2) ...
Setting up openssh-client (1:9.2p1-2+deb12u3) ...
Setting up openssh-sftp-server (1:9.2p1-2+deb12u3) ...
Setting up openssh-server (1:9.2p1-2+deb12u3) ...

```

看起来是 debian 的内核，用 unmkinitramfs 命令，这是一个脚本，你也可以直接看脚本里面的逻辑

这就是所谓的域前置嘛，要是早几年还有用，现在的 cdn 差不多都禁了

sudo dmesg | grep reserve