ssh命令密碼參數_作爲SSH參數運行命令時如何使密碼不可見？
ssh命令密碼參數
Keeping our passwords well secured is something that we all need to take seriously, but what do you do if a particular program or app displays your password in plain sight as you are typing it? Today’s SuperUser Q&A post has the solution to a frustrated reader’s password problem.
保持密碼安全性是我們所有人都必須認真對待的事情，但是，如果某個特定的程序或應用在鍵入密碼時能清楚看到密碼，您該怎麼辦？ 今天的「超級用戶問答」帖子提供瞭解決沮喪的讀者密碼問題的方法。
Today’s Question & Answer session comes to us courtesy of SuperUser—a subdivision of Stack Exchange, a community-driven grouping of Q&A web sites.
今天的「問答」環節由SuperUser提供，它是Stack Exchange的一個分支，該社區是由社區驅動的Q＆A網站分組。
問題 (The Question)
SuperUser reader user110971 wants to know how to keep passwords invisible when running a command as an SSH argument:
超級用戶閱讀器user110971想知道如何在將命令作爲SSH參數運行時使密碼不可見：
If I run this command and start typing the MySQL password, the password is visible on the screen:
如果運行此命令並開始輸入MySQL密碼，則該密碼在屏幕上可見：
- ssh [email protected] ‘mysql -u user -p’ ssh user @ server'mysql -u用戶-p'
How can I prevent this? If I log in through SSH and execute the MySQL command, then everything works fine.
我該如何預防？ 如果我通過SSH登錄並執行MySQL命令，則一切正常。
How can you keep passwords invisible when running a command as an SSH argument?
在將命令作爲SSH參數運行時如何使密碼不可見？
答案 (The Answer)
SuperUser contributor Toby Speight has the answer for us:
超級用戶貢獻者Toby Speight爲我們提供了答案：
If you provide a remote command to run, SSH does not allocate a tty, so the remote command is unable to disable echo. You can force SSH to provide a tty using the -t option:
如果提供要運行的遠程命令，則SSH不會分配tty ，因此遠程命令無法禁用echo。 您可以使用-t選項強制SSH提供tty ：
- ssh -t [email protected] ‘mysql -u user -p’ ssh -t user @ server'mysql -u用戶-p'
The equivalent option (for -o or for the config file) is RequestTTY. I would caution against using it in the config file because it can have unwanted effects for non-interactive commands.
等效選項(用於-o或用於配置文件)是RequestTTY 。 我會警告不要在配置文件中使用它，因爲它會對非交互式命令產生不良影響 。
Have something to add to the explanation? Sound off in the comments. Want to read more answers from other tech-savvy Stack Exchange users? Check out the full discussion thread here.
有什麼補充說明嗎？ 在評論中聽起來不錯。 是否想從其他精通Stack Exchange的用戶那裏獲得更多答案？ 在此處查看完整的討論線程 。
Image Credit: Linux Screenshots (Flickr)
圖片來源： Linux屏幕截圖(Flickr)
ssh命令密碼參數