first, server-side configuration1. rsyncd.conf File DescriptionUID = rsync #用户 to control read and write access to the module directory by the userGID = rsync #组, used to control read and write permissions for the group Access module directoryUse
The sigqueue function in Linux supports signal carrying parameters. The function prototype is as follows:
# Include
Int sigqueue (pid_t PID, int Sig, const Union sigval value );
The parameter value is a shared body and is defined as follows:
Union
From:Http://blog.csdn.net/xian0617/article/details/6689357
/*
* Waitquitsignal. h
*
* Created on: Aug 14,201 1
* Author: xian0617
*/
# Ifndef waitquitsignal_h _
# Define waitquitsignal_h _
# Include
# Include
Class waitquitsignal {
There are many ways to close mysql, but not everyone knows how to safely and easily close mysql. the following link is used to summarize several mysql closing methods and precautions: 1. initiate shutdown and send the SIGTERM signal. 2. Create a New
Linux Job Management
Before introducing job management, you must first know that job management is used in the bash environment. That is to say, "After logging on to the system to obtain the bash shell, you can manage multiple jobs at the same time
The following content is reproduced from http:// OS .51cto.com/art/200910/158639.htm
1. KillPurpose: kill a process based on the process number.Usage: Kill [signal code] process IDExample:[Root @ localhost ~] # Ps auxf | grep httpdNote: Kill-9 to
From: http://www.dbafree.net /? P = 870
We can use kill-L to view all the semaphore interpretations, but we cannot see the signal 0 interpretations.
[root@testdb~]# kill -l 1) SIGHUP 2) SIGINT 3) SIGQUIT 4) SIGILL 5) SIGTRAP 6)
Signal System Function calls provide a simple example. However, the C prototype Declaration makes it look more complex than the actual one. The signal function associates a given function with a specific signal. Here is the definition in FreeBSD
Linux Process CommunicationI. Overview of inter-process communicationProcess Communication has the following purposes:A. Data Transmission: A process needs to send its data to another process. The data volume sent is between one byte and several
Steps:First:After receiving Sigterm, now the server listens for socket stop acceptBut it doesn't stop listen, which is key. (so the SYN of the client-initiated TCP connection is not synack, just keep waiting and not be rejected )?Second:The existing
The kill command that is proficient in Linux no matter which operating system you use, you will surely encounter an abnormal application that locks itself and refuses to close it. In Linux (and Mac), you can use the & quot; kill & quot; command to
The compiled binary version that is downloaded using the MongoDB website, if need to compile requires github download 1. Set the MongoDB program directory to $mongo, base file Settings mkdir $MONGO/log mkdir $MONGO/conf/ mkdir-p/data/db/ Touch $
Traditionally, the system signal is the control signal transmitted by the system to the process. For example, SIGINT and sigterm. The transmission of these signals usually indicates the relevant process to complete the corresponding operation, or
Background recently, an anti-spam platform was set up for XX Project. The results were good, but there was a strange thing. The offline scanning part has a resident php process to process the detected spam information. The resident php process
Linux Signal Set1. Concept of Signal SetA signal set is a data type that can represent multiple signals. sigset_t set; set is a signal set.Since it is a set, you need to add/Delete the set.Int sigemptyset (sigset_t * set); empty the setInt
Signal is a very important part of Linux programming, this article will detail the basic concept of signal mechanism, the approximate realization method of Linux to signal mechanism, how to use signal, and several system calls about signal.Signal
Linux-Proficient KILL command Regardless of which operating system you use, you will definitely encounter an application that is behaving erratically, locking itself down and refusing to shut down. On Linux (and Mac). You can force an end to it
Kill command:The KILL command in Linux is used to terminate the run of the specified process (terminate a process) and is a common command for process management under Linux. Typically, terminating a foreground process can use the CTRL + C key, but
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