Linux

Previously wanted to verify some of the problems on the stack, but there is no good way, printf is really limited, flow on the surface, only the appearance (value, scope, law) do not see the real (address, register, process), so think of gdb--a

Kali Linux system By default, the root user is unable to use the sound card, and there is no sound. The following methods are enabled:(1) Execute command at Terminal: Systemctl--user enable PulseAudio(2) under the/etc/default/directory, create a

Crontab scheduled execution of task commands under LinuxIn Linux, the tasks performed by the cycle are typically handled by the cron Daemon (ps-ef|grep cron). Cron reads one or more configuration files that contain the command line and its

mode One: Enter change user name from recovery mode, resolve only one user but I love to use the command to change the questionPrerequisite Knowledge: 1. Understand the meaning of user information as described in the/etc/passed file, for example:

Always puzzled, why IO occupy high, the system load will also become high, encounter this article, finally solve my confusion.The load average indicator can be seen in commands such as uptime and top, and the three numbers from left to right

1. Linux Service classification1> Independent Monitoring Service (system service)Once started, the service will always run in the background, listening for client access and continuously consuming resources. Each service has an independent listener

It's easy to monitor CPU utilization in Windows systems, which comes with a template, but there's no default template in LinuxOnly CPU load, default when CPU load over a certain period of time over 5 alarmCPU utilization has a CPU idle time, that is,

1./var/log/messages log appears kernel:nf_conntrack:tablefull,dropping packet, what is the cause of the problem, how to solve?This error is iptables error message, the connection tracking table is full, start to drop packets, possibly due to

1. Network Configuration/etc/sysconfig/net-script/ifcfg-*DEVICE: Interface NameUUID: Device Unique indicationHWADDR: Network card AddressOnboot: Does the boot startBootproto:static|none|dhcpType:ethernet| BridgeDns1:dns AddressPeerdns: If the DNS

First, what is the inode?To understand the inode, start with the file storage. The file is stored on the hard disk, and the minimum storage unit for the hard disk is called "Sector" (Sector). Each sector is stored 512 bytes (equivalent to

Today installs the SVN originally thought very simple thing to go to the pit to get a half day, unifies several online documents to put on the use of oneself to serve. If there is insufficient and wrong place everyone to help to advise AH.1.

Linux Partitioning knowledgePrimary partition, extended partition, logical partition1, a hard disk can have up to 4 primary partitions (primary), where one primary partition can be replaced by an extended partition (extend), only one extended

Requirements: Known BMC account id2 as root admin account, add id5bmcroot accountTool: Ipmitool version 1.8.14System: CentOS Release 6.6 (Final)1. Install Ipmitool installation source via YumYum Install Ipmitool2, manual installation of Ipmitoolwget

I use Linux primarily in a personal environment, so I'm going to explore Linux learning from this perspective.We usually use the computer for Internet browsing, real-time communication, word processing, e-mail, etc., which requires our desktop

Lab environment: Physical machine Windows R2Ubuntu version: Ubuntu-15.04-server-amd64.isoNonsense not much to say directly, note the place will explain, the default carriage return for the next step. (The English picture does not have too much

Windows version Portal: http://www.cnblogs.com/shamman/p/7336917.htmlTinkering with a half-day noilinux, is almost to understand, will probably use noilinux brush questions more.Data generators (as is the case with Windows)1#include 2 using

Organize some basic system administration commands for Linux as a memo=========================================================================To view a file or edit a

Synchronous and asynchronous: related to the notification mechanism of a message . Essential differences Practical examples Sync mode To wait for the message to be triggered by the person handling the

Simple deployment and use of SVN Originally published in cu: Reference: The svn server can run in two ways: This document is based on independent server deployment and does not rely on apache.   There are two ways to store version data in svn: The

Linux O & M and architecture-rsync and linux-rsync 1. rsync IntroductionRsync is a tool for Synchronous backup of full and incremental local or remote data images  Common rsync Command Parameters Command parameter description-a (-- archive) archive