[ 源代码： libdontdie ]
软件包：libdontdie0（1.2.0-2 以及其他的）
library that sets the TCP keep-alive flag when applications call socket(2)
libdontdie is a shared library that can be injected into any application with the LD_PRELOAD mechanism. It is completely transparent to the application and therefore works equally well with closed-source programs and with languages like Java that do not natively allow changing the TCP keep-alive parameters.