Did who taught me, I want to give to the two problems,
Because it is pure white, so baidu many are not very understand,

CodePudding user response:

Tcpdump -v port not 22
Find out what of, depending on the actual display

The last | grep user accounts
The failure of the last | grep user account

The assessment of what?

CodePudding user response:

Company internal training, and then gives evaluation, I try