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How to do ssh with a timeout in a script?

... This doesn't actually work for "the remote host is taking an infinite time to run": "ssh -o ConnectTimeout=5 host 'sleep 10'" waits for 10 seconds, not 5. – Ferry Boender Oct 11 '16 at 18:37 ...
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Secure hash and salt for PHP passwords

It is currently said that MD5 is partially unsafe. Taking this into consideration, I'd like to know which mechanism to use for password protection. ...
https://www.tsingfun.com/it/cpp/1538.html 

OnInitDialog()中SetFocus()设置焦点不起作用解决方法 - C/C++ - 清泛网 - ...

...到控件,否则返回 TRUE } 当然,改为return FALSE;能解决问题,但是感觉不太优雅,使用SendMessage解决,如下: ::SetFocus(m_wndEdit); -> ::SendMessage(m_wndEdit, WM_SETFOCUS, 0, 0); 这时,你会发现,输入框确实获得了焦点,但是此时键盘无...
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linux 通过bind下搭建DNS Server - 更多技术 - 清泛网 - 专注C/C++及内核技术

...ost不够用和避免加端口各种麻烦,以及子目录超级麻烦等问题。那么很多时候需要在开发环境上门绑定多个域名。假如是一个团队开发。那么每个人都去修改hosts是一件很悲剧的事情,那么你需要的就是一台内部的dns服务器。其...
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OnInitDialog()中SetFocus()设置焦点不起作用解决方法 - VC/MFC - 清泛IT论...

...到控件,否则返回 TRUE } 当然,改为return FALSE;能解决问题,但是感觉不太优雅,使用SendMessage解决,如下: ::SetFocus(m_wndEdit);   ->   ::SendMessage(m_wndEdit, WM_SETFOCUS, 0, 0); 这时,你会发现,输入框确实获得了焦点...
https://bbs.tsingfun.com/thread-1106-1-1.html 

使用照相机时老是弹出 error 201 : the camera d id not return an image ...

问题来自B站:https://message.bilibili.com/?spm_id_from=333.1007.0.0#/reply 解决方法: 1、很可能删除了 “Pictures“ 图片文件夹:/storage/emulated/0/Pictures,这个文件夹不能被相机组件自动创建。 2、官方确认这是一个bug,已修复。确认一下...
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BrightnessTools 拓展:设置手机亮度的工具 · App Inventor 2 中文网

...不需要回复的可留空~ 请描述您的问题(300字以内): 给个鼓励也行呐~o~ 提供截图(仅截取当前可视区域...
https://bbs.tsingfun.com/thread-2686-1-1.html 

ble蓝牙怎么接收中文 - App Inventor 2 拓展 - 清泛IT社区,为创新赋能!

...? 英文能正常显示,中文乱码,那肯定就是字符集编码问题了。 详见:https://www.fun123.cn/reference/iot/bluetooth_codec.html 保证单片机侧和App侧一致的中文编码方式即可。盲猜BLE中应该是UTF8编码,单片机GB2312编码。
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Debug vs. Release performance

... Partially true. In debug mode, the compiler emits debug symbols for all variables and compiles the code as is. In release mode, some optimizations are included: unused variables do not get compiled at all some loop variables are ...
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What is difference between monolithic and micro kernel?

...ing entirely in a single address space. It is a single static binary file. All kernel services exist and execute in the kernel address space. The kernel can invoke functions directly. Examples of monolithic kernel based OSs: Unix, Linux. In microkernels, the kernel is broken down into separate proc...