linux - 如何与连接到一台计算机的两个 beaglebone black 进行交互

Question

即使在更改 BBB 的一个 IP 之后，当我尝试连接时，它的配置也恢复为默认设置，有人试过这个吗？如果试过，请告诉我解决方案的确切步骤。问题:root@silvan-DL-H61MXP:~# ssh root@192.168.7.2

@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
Someone could be eavesdropping on you right now (man-in-the-middle attack)!
It is also possible that a host key has just been changed.
The fingerprint for the RSA key sent by the remote host is
7d:0c:75:6f:f0:15:2f:13:39:f9:94:ba:88:30:61:e9.
Please contact your system administrator.
Add correct host key in /root/.ssh/known_hosts to get rid of this message.
Offending RSA key in /root/.ssh/known_hosts:1
  remove with: ssh-keygen -f "/root/.ssh/known_hosts" -R 192.168.7.2
RSA host key for 192.168.7.2 has changed and you have requested strict checking.
Host key verification failed.

Answer 1

通过 ssh 连接到此类开发系统(通常会丢失其配置)的解决方案是禁用主机 key 检查和存储。

在您的情况下，这可以通过将其放入 ~/.ssh/config 来完成:

Host 192.168.7.*
    UserKnownHostsFile /dev/null
    StrictHostKeyChecking no

但是，请注意不要禁用正常系统的主机 key 检查和存储，因为这会为中间人攻击打开它们。