Linux

My name is Wang Xiaofu, after the old boy education ops 5-6 months to study, I must achieve the salary target is 25k/m , in order to achieve this goal, I will take the following ten actions:1. Listen carefully in class, follow the rhythm of the

Organize Linux to view some of the frequently used commands for system logs Last-a the host name or IP address from which to log in to the system, displayed on the last line.-d Specifies the record file. Specifies the record file. Converts

Woke up in the morning was told that last night accidentally deleted 3 MySQL files, can only restore theThis is the file information before the deletion:650) this.width=650; "src="

Edit/etc/sysconfig/iptables, add- s 127.0.0.1 --dport 6379-J Accept-s 126.212.173.185 --dport 6379-j ACCEPTThe above add red place is only to the local and 126.212.173.185 open 6379 port, other IP with Telnet is not connected,If there is no limit to

/************************************************************************** * i.mx6 AT24Cxx EEPROM Linu X I2c-gpio * Disclaimer: * Many times when we use the Linux system management hardware, more is through the chip controller, * but sometimes, we

Alarm (time), after execution, tells the kernel to let the kernel send a timed signal to the process after a timeframe, and then the process captures the signal and processes it;The pause () function pauses the process to give up the CPU, but the

Linux Operations in the operation of the Linux process, the most used Linux download tool must be wget, do not see which server has not been installed wget, perhaps someone use ftp download, also someone use multi-threaded axel and Prozilla, There

Linux performance testing and monitoring sar commands Sar (System Activity Reporter System Activity Report) is one of the most comprehensive System performance analysis tools on Linux. It can report System activities from multiple parties, including:

Linux I2C bare metal driver resolution (to), i2c bare metal1. hardware features 1.1 Overview The I2C bus is a two-line serial bus developed by Philips. The two cables are the clock line (SCL) and two-way data line (SDA ). The I2C bus only requires

Linux original socket (2)-icmp request and receipt, linux-icmp I. Overview The previous arp request used the original socket of the link layer. Icmp is encapsulated in ip datagram, so icmp requests can directly use the original socket at the network

Use fdisk to add hard disk partitions and fdisk to add Hard Disk Partitions 1. use fdisk to create 6 partitions [1 P + 1E (5L)] // dev/sdb1/dev/sdb5/dev/sdb6/dev/sdb7/dev/sdb8/deb/sdb9 1 [root@server ~]# fdisk -l 2 3 Disk /dev/sda: 8589 MB, 8589934

Connect to wifi in linux, and connect to wifi in linux Perform the following steps: --------- (when you type the following commandCase Sensitive and Space.) 1. Access the terminal treminal to obtain administrator privileges -------------------- su

System v ipc (2)-semaphore, ipc I. Overview The System V semaphore is different from the System V message queue. It is not used to transmit data between processes. It is mainly used to synchronize the action of a process. 1. A semaphore is an

SecureCRT connects to Ubuntu-port forwarding in VirtualBox SecureCRT connects to Ubuntu-port forwarding in VirtualBox Port forwarding: Set network port forwarding Port forwarding: The subsystem address can be viewed by using ifconfig in

Install tomcat in Linux (Centos) and deploy a Java Web project, centostomcat1. Preparations A. Download the tomcat linux package at: http://tomcat.apache.org/download-80.cgi. the download method is 8.0. B. because tomcat installation depends on Java

[Nginx] common traps and errorsMany people may encounter a trap. The following lists the problems we often see and explains how to solve them. The # nginx IRC channel on Freenode is frequently discussed. 1. Do not use the 777 permission for

Linux inter-process communication (IPC) Programming Practice (iii) Details System V Message Queue (1)Message Queue introduction Message Queue provides a method for sending a piece of data (local) from one process to another. Each data block is

[Recommended] 20 open-source/commercial control panels for Linux Server Management As the website owner, it is difficult to manage multiple websites without a control panel. However, to meet specific requirements, we need a custom hosting

Describe how Apache + Tomcat + JK implements Tomcat load and clusters I have studied the combination of Apache and Tomcat. I will write the process out later. In Linux, Apache + Tomcat + JK implements the complete process of load balancing and

Configure Haproxy log support (rsyslog log Support) System CentOS 6.x Configure Haproxy log support Cp/etc/rsyslog. conf/etc/rsyslog. conf 'date + % F'Ll/etc/rsyslog. con *Cat>/etc/rsyslog. conf # HaproxyLocal0. */application/haproxy/logs/haproxy.