Linux

Thread-specific data for thread-specific properties and threads One, POSIX thread properties The POSIX line threading defines the Thread Property object pthread_attr_t, which encapsulates the thread properties that the creator of the thread can

The code for the Internal_add_timer () is as follows: static void Internal_add_timer (tvec_base_t *base, struct timer_list *timer) {//Timer arrival time UN Signed Long expires = timer->expires; 　　　　 //calculation time interval unsigned long

file management commands on Linux Directory Management Commands: Mkdir:make Directories mkdir [OPTION] ... DIRECTORY ... -P: Automatically create parent directory on demand; -v:verbose, show the detailed process; -M MODE: direct given

Kloxo is a Linux VPS server is very outstanding foreign free panel, the domestic user is also very large. Han is also in place. Before the author to introduce the use of a key installation package is very convenient (one-click Installation kloxo).

MV command is a command similar to CP, but it is not a replica/copy of a file or directory. No matter what version of Linux you're using, the MV is installed on your Linux system by default. Usage: MV [options] ... [-t] source file destination file

Useradd Useradd [-C comment] [-D Home_dir] [-E Expire_date] [F Inactive_time] [G Initial_group] [G group[,...]] [m [-K Skeleton_dir] |-m] [-s Shell] [-U uid [-O]] [-N] [-R] Login useradd-d [G Default_group] [-B default_home] [F

The VI command is a common and important command under UNIX to edit one or more files in Full-screen mode. If you do not specify a file in VI, then the VI command will automatically generate a nameless empty working file. If the specified file does

first, port and service relationships The corresponding relationship between the port number and the corresponding service is stored in the/etc/services file, where most of the ports are found. Using the netstat command The name of the service

first, the Domain Name System introduction 1. Domain Name System Domain Name System is a distributed database, it makes the local control of the entire distributed database segment, each section of the data through the customer, the server model

The Linux top command defaults to CPU-occupied sorting, and press m to switch to the sorted by memory footprint. This is system maintenance and computer memory maintenance. can switch. Different uses to achieve different effects. The following is a

After having the alarm function of the mail, the next thing to do is to do a timed task, so that the task is performed on a periodic basis, so that it can periodically receive the alarm information Before doing a scheduled task, check the current

Method One, Sometimes need to login ssh, each need to enter a password, will be more cumbersome. So set up to use RSA public key authentication way to log on to Linux. First you need to set up/etc/ssh/sshd_config on the server side #

Ifconfig eth0 shows the configuration of an Ethernet card Ifup eth0 enable a ' eth0 ' network device Ifdown eth0 disables a ' eth0 ' network device Ifconfig eth0 192.168.1.1 netmask 255.255.255.0 control IP Address Ifconfig eth0 promisc set '

When I started looking at Microsoft's Windows Home Server (Windows House SERVER,WHS), I was disappointed to find that this "revolutionary" WHS was not as advertised. 　　 As a common file server for families, there is nothing wrong with it. After

The importance of Linux based Web server performance testing Linux, as a free open source operating system, is becoming more and more important to people. With the advent of a stable Linux 2.4 kernel release date and the introduction of the Intel

Conventions: 1. This post operating environment is Redhat 9.0,VSFTPD version is Redhat 9.0 with vsftpd-1.1.3-8.i386.rpm, in the installation of the third Zhang Zhong of the disk 2. VSFTPD realization of the most basic purpose: the system exists in

With the rapid expansion of bandwidth, the information exchange on the Internet is increasing, there is no doubt that the security of the Internet, operating system platform security has gradually become a matter of concern. and many network servers,

My name Jiang Hao, after the old boy education 4-5 months of study, I must reach the salary of 12K, in order to achieve this goal I will take the following actions:1, multi-directional experienced people learn to ask!2, empty cup of mind, everything

As we all know, the operating system (OS) is the closest to the hardware of the first layer of system software, it is the hardware to transform the bare metal into a fully functional virtual machine, making the use and management of computer systems

CentOS6.8 replace kernel with acute Vultr Although there are other VPS in hand, but in contrast, Vultr has a Japanese data center, which has good configuration, low price, sufficient bandwidth, and various advantages, so it is a pity to leave it