Linux

Reference address1. understanding of the fork function: a process that includes code, data, and resources assigned to the process. The fork () function creates a process that is almost identical to the original process through a system call.That is,

Linux Mint 17 is installed with the default OPENJDK, you can use Java-version to viewNow you need to use Sun/oracle's official jdk:http://www.oracle.com/technetwork/java/javase/downloads/index.html.After downloading the installation steps are as

First, the user log on when the need to verify that the two filesCheck username Login:root to this folder for/etc/passwdCheck/etc/shadow with password passwd:123456 to this folderFields under/ETC/PASSWD (one user per behavior)Grammar:root:x:

Iptables is commonly used on Linux firewall software, the following to everyone to say iptables installation, clear iptables rules, iptables only open the designated port, iptables shield designated IP, IP segment and unblock, Remove basic

First, the basic preparatory work: 1.     u disk or mobile drive 1 the size of the storage space depends on the store linux size of the system; 2.     ready to burn software ultraiso or other burning

How can you tell if your server has been compromised? Just two hands is not enough, but two hands can also play some role, we first look at some of the UNIX system intrusion detection methods, for example, Linux and Solaris.1. Check the system

This article analyzes kernel-based Linux Kernel 1.2.13Original works, reproduced please mark http://blog.csdn.net/yming0221/article/details/7488828See column, Address http://blog.csdn.net/column/details/linux-kernel-net.htmlShumingThe next series of

11, Process creationLinux process creation can be divided into two steps, the fork () and the Exec () function, fork () is responsible for creating a child process, and the parent process is only the PID ppid and some statistics, the EXEC ()

Ngx_int_tngx_daemon (ngx_log_t*log) { intFD; //make the INIT process the parent process of the newly generated process://after calling the fork function to create the child process, the parent process exits immediately. In this way, the resulting

Database health monitoring is a very important work, important indicators \KPI monitoring results will have a special collection, monitoring, alarm system to do related things.While some are not very important or are still in the design and

Summary of Linux UML kernel debugging methodsThe building of a UML environment1 Download Internal coreSelect version Linux-3.10.57.tar.xz from official website www.kernel.orgUnzip to the appropriate path???? /opt/um/linux-3.10.57?2 UM-based kernel

What is an ACLACL is the abbreviation of Access Control List, the main purpose is to provide the traditional owner,group,othersRead,write,execute permission settings outside of the permissions. ACLs can be used for single-user, single-file or

Problem Introduction:Linux elf files are very difficult to understand at first, some people may go to see "linkers and Loaders", this book is really good, but there is no detailed explanation of many details, especially from the assembly language

Linux Command Line tool for sniffing HTTP traffic: httpry For some reason, you need to sniff the HTTP site traffic (such as HTTP requests and responses ). For example, you may be testing the experimental function of a web server, or you are

G ++ compile the program to import the getch () function, getch Note: In ubuntu, G ++ compiles the C ++ program to import the getch () function (the program will continue to run only after a value is input by the standard function, no function

GConf error: Failed to contact configuration server, gconffailed The Linux system has been running normally, but the following error occurs when you log on to the GUI using the root account. This is the first time you encounter such a strange

Run Pmap to check the memory used by the process in CentOS. Pmap provides memory ing for processes. The pmap command is used to display the memory status of one or more processes. It reports the address space and memory status of the process. Pmap

Use NetHogs in CentOS6.5 to monitor network usage of processes Nethogs is a network traffic monitoring tool on a terminal. It displays the bandwidth usage of each process, so that the network usage can be obtained more intuitively. It supports IPv4

Stat -- get more information than ls Get tired of ls commands and want to see more interesting information about your files? Try stat! The ls command may be one of the first commands learned by every Unix user, but it only displays a small part of

Kill command in CentOS to close the process The safest way to kill a process is to simply use the kill command without a modifier or a flag. First, use the ps-ef command to determine the PID of the process to be killed, and then enter the following