Linux

As we all know, firewalls are an important guarantee for computer security, so they are also very important in the RHEL 5 firewall settings, this is precisely because it is very important, so we need to provide a detailed description of this

Cacti is a set of graphic analysis tools for network traffic monitoring developed based on PHP, MySQL, SNMP, and RRDTool. Cacti Chinese version uses snmpget to obtain data and use RRDtool to draw images. You do not need to understand the complex

How to view online logs in Linux generally, most linux servers are remotely logged on and managed through the ssh client. After logging on to the linux host through ssh,How can we quickly interact with files on the local machine, that is, uploading

The getopt_long command line option for linux Parsing is required in the program. You can select the option for parsing the command line by yourself, but there is a ready-made option. Why bother re-engineering the wheel.The following describes how

Objective: To start a ubuntu iner instance with ubuntu 12.04-amd64 through lxc, and then set up the LAMP (Linux + Apache + Mysql + PHP) environment in this instance. Specific steps: www.2cto.com (1) install mysql: sudo apt-get install mysql-server

Automatically obtain IP dhclient eth1 temporary IP address ifconfig eth0 192.168.1.112/24 set IP address and subnet mask route add default gw 192.168.1.1 set gateway address echo nameserver 192.168.1.1>/etc/resolv. conf sets the DNS address/etc/init.

Run the mkdir file name mkdir/var/www/test cp command to create, delete, move, and copy centos files. Run the cp command to copy files from one location to another. If the destination file exists, the file will be overwritten; If the destination

In Linux, how does one view high CPU usage threads? in Linux, the top tool can display the average cpu usage (user, nice, system, idle, iowait, irq, softirq, etc .), the usage of each cpu is displayed. However, the cpu usage of each thread cannot be

The software package (RPM) where the file on which the software depends is searched by shell programming assumes that the directory of the package is/media/server #! /Bin/bash # This script is used to query the package dependencies. #6/16/11

Linux is a multi-user, multi-process operating system. It provides many system and network services for users. Therefore, from the application perspective, it inevitably requires security authentication for a large number of applications and their

The Cisco simulator runs in a Windows environment and consumes resources. Therefore, Dynamips is installed on the CentOS6 Linux operating system to simulate Cisco routing and switching.1. Download:Download several required packages[Root @ cisco test]

In the previous two sections, we introduced the basic knowledge of users and user groups and how to manage users and user groups. Next let's take a look at other user-related commands.Finger tool for viewing user informationChfn tool for changing

  I did a performance test at the company. Recently, it was relatively idle, So I simply studied the Performance Comparison Between tomcat and jboss. I just did it. Thanks to tomcat's familiarity, the environment was relatively mature, jboss is just

  There are many ways to boot a USB flash drive. You can use the following two methods: 1. use tools such as UltralISO and UNetbootin to burn an ISO image to a USB flash drive. Then, the USB flash drive starts and you can see your face. I tried it

  1, UNetbootin Create one of the most popular Live USB tools. UNetbootin is an open-source application that supports Windows, Mac OS X, and Linux. It supports any released version image you want to try.@ Http://unetbootin.sourceforge.net/     2,

Today, the following error occurs when you configure the ADT with eclipse in Ubuntu to configure the Android development environment: 1 Cannot complete the install because one or more required items cocould not be found. 2 Software being installed:

Author: runming QQ: 226399587Shell sed ManualSed command columns can be divided into edit commands and file files. The editing command controls all edits. The file represents the processed file. Sed editing commands are composed of address and

The number of requests with a response code of 400 on an application increases by 1‰. The reason for the application's request is analyzed.First, check the log to check whether other requests of the ip address of the 400 request are normal, and

Problem:# Mount-t ntfs/dev/sdb1/mnt/Mount: unknown filesystem type 'ntfs'This is because partitions in NTFS format cannot be identified on CentOS release 5.5 (Final. Solution:Solved by using ntfs-3g.Open the download point ntfs-3g for the

We have learned a lot about Linux SNMP and do not know whether you have mastered it. Next we will focus on the content of the Linux SNMP proxy. You may have heard about "Linux SNMP management devices", "Linux SNMP-compatible devices", or "Linux SNMP-