PING – Packet INternet Groper Utility q).Why devices are not in online? why we can’t reach network? How to troubleshooooot? *. Ping is an utility, which helps somehow to narrow down this.

Link: A Link is a network that allows a set of computers to communicate with each other. eg 1: if all computers in an office are wired together, the connection makes a link eg 2: If several computers belonging to a private company are connected via a satellite channel, the connection is a link. q).What…

In Linux, an instance we call it as a process. And The process might have multiple threads(0 or 1 or more). by default a process is a single threaded. q).process vs threads ? *.all threads are part of process. the main process is main thread. eg: if we have multiple threads, all threads are child’s…

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Valgrind is more in general memory debugger tool. Debuggers Specially used to figure out memory leaks in our system programming with the help of Valgrind. It’s a great tool where most focussed in memory profiling. Ufh! not like gdb. Valgrind was originally designed to be a free memory debugging tool for Linux on x86, but…

I love gdb. GDB is a tool, by which an engineer able to narrow down the issues with the help of features provided by GDB(The GNU Project Debugger). Most of engineers in triage the critical bugs, they must be used gdb. lot of features, various options helping the engineer in trival time. that’s why we…