如果有人在ssh shell中调用passwd，我是否需要sudo作为sudo？

Question

在linux中，如果我打开终端模拟器并运行命令sudo，它会提示输入密码。但随后的sudo调用不会提示输入密码。

但是，如果在用户第一次在终结器模拟器窗口内进行身份验证之后，用户的密码与passwd一起更改会怎样？ sudo是否顺利通过，还是需要用户再次输入？

Answer 1

取决于配置在/ etc/sudoers文件

通常羯羊它在时间的变化与否，用户可以调用sudo的长达5分钟，而无需再次输入密码，但可以重新配置在/ etc/sudoers文件

看到男人的sudoers 搜索timestamp_timeout

我的系统上读取

timestamp_timeout 
         Number of minutes that can elapse before sudo will ask for 
         a passwd again. The timeout may include a fractional com‐ 
         ponent if minute granularity is insufficient, for example 
         2.5. The default is 5. Set this to 0 to always prompt 
         for a password. If set to a value less than 0 the user's 
         time stamp will not expire until the system is rebooted. 
         This can be used to allow users to create or delete their 
         own time stamps via “sudo -v” and “sudo -k” respectively. 

and

sudoers uses per-user time stamp files for credential caching. Once a user 
has been authenticated, a record is written containing the uid that was used 
to authenticate, the terminal session ID, and a time stamp (using a mono‐ 
tonic clock if one is available). The user may then use sudo without a 
password for a short period of time (5 minutes unless overridden by the 
timestamp_timeout option). By default, sudoers uses a separate record for 
each tty, which means that a user's login sessions are authenticated sepa‐ 
rately. The tty_tickets option can be disabled to force the use of a single 
time stamp for all of a user's sessions.