Arnish is a high-performance open source HTTP accelerator, Norway's largest online newspaper Verdens Gang (http://www.vg.no) uses 3 Varnish to replace the original 12 squid for better performance than before.
Varnish's author, Poul-Henning Kamp, is
LinuxAs a multi-task environment, you can perform multiple tasks at the same time, such as viewing system conditions, backing up data, editing files, and printing files.A time-consuming task should not be executed in the foreground task, but should
VI may be the most powerful text editor in the terminal command line. However, currently, only the text editing function is needed. It is not required to integrate with tools such as GCC and make, therefore, the operation is not difficult, so it is
1. Installation Steps of peanut shells For Linux
Download the installation package suitable for your unix/linux version, and decompress the installation package as root.
# Tar-zvxf phlinux-1.0-install.redhat.9.0.tar.gz
The installation package file
It is important to select a proper career path. To correctly select a career path, you must first be diligent in self-reflection. You must be "self-aware" and set your own goals and directions. If you are a human in the IT industry and have the
YUM (Yellow dog Updater, Modified) is used to automatically connect to the yum source, check and update software packages, security patches, and check and update Linux system cores as needed ).
◆1. Download yum Software
Note the yum software
Iptables. rule is the general rule of firewall;
Iptables. allow is a sufficient host to enter;
Iptables. deny is a host that is not allowed to be placed;
◆ Iptables. allow Code:
#! /Bin/bash
# This is an esay firewall.
# The inside interface. if you
◆1. Solve the Problem of root User ftp login
Generally, for various reasons, ftp does not allow the root user to log on remotely, but you only need to modify the file to log on.
A. Remove or comment out the root in/etc/vsftpd/ftpusers.
B. Remove or
◆ Htop -- better top
Top is the classic Process Manager in Linux, and Htop is its enhanced version.
Compared with top, Htop provides a better interface and more intuitive operations. You can also configure Htop display by pressing F2.
Htop home page:
Misunderstanding 1. Linux runs slowly
DOS programs seem to run faster than Linux programs, mainly because DOS is not a multi-task operating system. In fact, NT is slower than DOS when running some programs, for the same reason. However, compared
LinuxThe system's stability record has become a good weapon for many critics against conflicting Windows systems. However, although there are few conflicts in Linux systems, once unexpected circumstances occur, it is easy to make people into trouble.
Figure-Postfix
I believe everyone has usedPostfixAnd know that it is an extension of sendmail. Do you know how to use resource control with Postfix? Please refer to the following for more information.
With specific postfix configuration parameters,
This article will introduce youZimbraFor more information about this electronic management software, see the following.
Zimbra provides an open-source collaborative office suite that includes WebMail, calendar, communication records, and Web
The basic smtp protocol does not have the ability to verify user identity. Although the sender address on the envelope already implies the sender's identity, because the envelope address is too easy to fake, it cannot be used as identity creden. To
Figure 1
KonquerorIs an embedded browser 1), mainly running on Linux and BSD operating systems, I used it for a while, let me see how to modify the konqueror toolbar.
I tried Everest and found that konqueror does not have the "Configure toolbar"
KonquerorIt is an embedded browser that runs mainly on Linux and BSD operating systems. It took me a long time to give some shortcuts to those new users. Let me see the following.
KDE has a simple browser kfm since version 1.x and is also the KDE
KonquerorIt is an embedded browser mainly running on Linux and BSD operating systems. I used it for a while and accidentally found that Flash can be installed in Konqueror. Come and check out what is going on!
Flash Animation cannot be played in the
The sample code in this article is run in CentOS 5.4 64-bit environment and has not been tested on other unix systems.
Commands in Linux are actually compiled executable programs. For example, the ls command is located in the/bin directory, when we
The author is Jack Wallen, an expert at TechRepublic on the U.S. technical website. In this article, he shared 10 problems encountered in Windows, but the same problem won't occur in Linux.
The original article is as follows:
As an experienced Linux
IptablesCommands are a required knowledge for beginners. I will take out my instructions on Iptables commands and commands for your reference.
I. iptables command
Use iptables-ADC to specify the chain rules.-A Add-D Delete-C modify
Iptables-[RI]
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