Linux

1. First, we need to understand the role of the disk quota and what is quota. The disk quota can be simply understood as the number of quotas. We know that Linux is a multi-person environment, so it is easy to show that when multiple users use a

This article describes the advantages and disadvantages of three Linux Server monitoring technologies, including SNMP proxy (client), SSH, and private proxy (client) installation. The powerful functions and beautiful interfaces of Linux make many

Concise Linux Command Line Notes 1: ls lsls is the abbreviation of list, the main function is to view the Directory and file information 1. usage: ls [Option]... [file]... 2. common parameters:-a, -- all: display all files, including hidden files

RedHat6.3 after 64-bit installation, set to add the current user to the Management Group echo 'jedrek ALL = (ALL) ALL '>/etc/sudoers modify to CentOS yumrpm-aq | grep yum view rhel yum www.2cto.com uninstall these packages rpm-aq | grep yum | xargs

Linux does not have an address bar and does not have an address bar. As a result, windows kids shoes are often hurt. The following solutions are available: 1. use the shortcut key www.2cto.com (left) Ctrl + L 2. complete ALT + F2 through the seduce

DNS: domain name systemRecursive query: the final result is obtained after a query.Iterative query: You must perform multiple queries to obtain the final result.The Application Methods on the Internet are generally local recursion and partial

1. Download the MySQL Installation FileThe following two files are required to install MySQL:MySQL-server-4.0.23-0.i386.rpmMySQL-client-4.0.23-0.i386.rpmOpen this webpage at http://www.mysql.com/downloads/mysql-4.0.html, pull down the webpage to the

Ubuntu Server Editon time zone settingsPosted on th, 2009 by zxingBy default, Linux uses the UTC format as the standard time format. If you run a program in Linux and specify a different time zone in the program, a time error may occur.The tzconfig

1. Configure the VNC ServerEdit the vi/etc/sysconfig/vncservers file and add a VNC user.Add the following line to the end of the vncservers file:-------------VNCSERVERS = "1: root"--------------Note:*. The added user (root User) must already exist.*.

The critical situations of Redhat Enterprise 5 system faults mainly include the loss of grub configuration files, the loss of fstab partition Mount tables, and the recovery of faults in the/boot system boot directory being deleted.I. fault recovery

The following requirements apply to the use of the file control list commands setfacl and getfacl. the setfacl command can be used to enable a group of users to write, read, and execute, while a group of users to write and execute, another group of

In Ubuntu, the apt-get command is used by agents. Many companies now have their own proxy servers to control Internet access for employees. There will be some obstacles to update the software when we use a Linux system, such as Ubuntu. In Ubuntu, if

In AIX and Linux, crontab introduces similar crontab usage in AIX and Linux. First, it introduces Crontab usage in Linux, and then introduces differences between AIX and Linux. 1. Crontab the crontab command is used to schedule the execution of some

Linux setting proxy Linux system setting yum, wget, rpm command using Proxy: 1. using yum with a proxyserver --------------------------------------- To enable yum operations to use aproxy server you shocould first add the following parameter

The R, S, D, T, Z, and X processes in Linux State resolution are multi-user, multi-task systems, if you can run multiple programs of multiple users at the same time, many processes will inevitably be generated, and each process will have a different

Disk management-RAID 5 What is RAID 5raid Level 5 is a storage solution that combines storage performance, data security, and storage costs. It uses the Disk Striping technology. RAID 5 requires at least three hard disks. Instead of backing up the

Disk management-RAID 10 What is RAID 10 RAID 10/01 is subdivided into RAID 1 + 0 or RAID 0 + 1. RAID 1 + 0 is the first mirror and then split the data, and then all the hard disks are divided into two groups, as the lowest combination of RAID 0,

The tool pkgutil for automatic installation of software in Solaris can automatically install the dependent software package in RPM in Linux. The solaris system has fewer users, many people do not know that solaris also has tools that automatically

Iptables learning 03 port forwarding two network interfaces: Lan port: 10.1.1.254/24 eth0, Wan port: 60.1.1.1/24 eth1 Lan web server: 10.1.1.1: 80, Lan ftp server: 10.1.1.2: 21 objective: to forward ports to internal servers so that internet users

OSSEC Monitor your App log file OSSEC monitors system logs with build-in support, and does a good job. don't forget OSSEC is also can monitor the custom log file like our app's log. you have to create your own decoder and rule for that. add the log