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Campus Network smoothwall solution-Multi-VLAN Solution

Summary: In this article, we will discuss how to deploy the smoothwall proxy server in a typical campus network environment. This section mainly discusses how to configure Static Routing in multiple VLANs (because of other problems such as localization, update, Port Mirroring, and Backflow ). I have already demonstrated the situation clearly) Campus Network Topology Smoothwall Configuration:InternetIp: 202.

Seven Easy-to-use Linux firewalls

is a series of internet security products designed to protect your users and networks from external attacks. Smoothwall Express is based on the Linux operating system. Linux is an ideal choice for security systems. It is trustworthy, secure, highly customizable, and free to obtain its open source code. Smoothwall cont

Senior recommendation: Seven Linux Firewall text descriptions (download)

networks from external attacks. SmoothWall Express is based on the Linux operating system. Linux is an ideal choice for security systems. It is trustworthy, secure, highly customizable, and free to obtain its open source code. SmoothWall contains a set of reinforced GNU/Linux

The most useful ten open source firewall in Linux system

Today, open source firewalls are a vast number. This article will cover 10 of the most practical open source firewalls that fit your business needs. 1. Iptables Iptables/netfilter is the most popular command line based on firewalls. It is the safe line of defense for Linux servers. Many system administrators use it to fine-tune the server. The effect is to filter packets in the network stack in the kernel, features include: listing the contents of a

Linux System 10 Open source firewall sharing

Today, open source firewalls are a vast number. This article will cover 10 of the most practical open source firewalls that fit your business needs. 1. Iptables Iptables/netfilter is the most popular command line based on firewalls. It is the safe line of defense for Linux servers. Many system administrators use it to fine-tune the server. The effect is to filter packets in the network stack in the kernel, features include: listing the contents of a

Diverse uses: Linux (1)

environment or adjust it to a specific application. With years of development, Linux has become a complete set of categories and a wide variety, including operating system components and various application software. Next we will focus on the Firewall Application Linux-IPCop and m0n0wall; a Linux SAN/NAS device-OpenFiler; two Ubuntu Studio and Musix for music ap

13 special releases worth considering for Linux

Article Title: 13 special releases worth considering for Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. InfoWorld discusses 13 specialized releases in two parts, each of which is created for a specific environment, su

A Linux soft route supporting hybrid multi-line access

, FD Linux, LRP (Linux router project Linux Route Project), fli4l, freecso, coyote Linux, smoothwall, etc, these things share a common feature. They are all based on Linux. Some of them can run on a floppy disk, with excellent per

Ranking of free operating system Linux last month

Last month's ranking list of free operating system Linux-general Linux technology-Linux technology and application information. The following is a detailed description. Data from distrowatch.com FreeBSD is also widely used, almost the same as CentOS. Although we do not want MS to run rampant in the world, we do not want Linux

Introduction to Linux distributions, getting Started with Linux system basics, Linux command Help, Linux basic commands

Tags: System ops LinuxBasic knowledge of computer playing:CPU (operator, Controller), memory, I/O (input device, output device)程序运行模式: 用户空间:user space,us (可执行普通指令) 内核空间:system space (可执行特权指令)POS:Postable Operating System 可移植操作系统 POSIX 可移植操作系统规范运行程序格式:Windows:EXE,库文件dll(dynamic link library 动态链接库)Linux:ELF,库文件so(shared object 共享对象)程序:指令+数据 指令:只读 数据:读写程序:算法+数据结构库调用,系统调用:允许被调用的程序;malloc() 申请内存空间;free() 释放内存空间;编程语言 汇编语言:微码编程(系统级程序员) 系统中某些于硬件相关的特有代码、驱动程序开发; 高级语言:C、C++

Linux: Introduction to Linux services-disable unnecessary Linux services

Linux services)It is important for Linux users. Disabling unnecessary services can make Linux run more efficiently, but not all Linux services can be disabled. After installing centos Linux today, we found that many services were started when

Linux-(2) Basic file operations in Linux, linux-linux

Linux-(2) Basic file operations in Linux, linux-linux In linux, everything is files, directories are files, and hardware is files. Therefore, basic file operations are especially important. 1. List the contents of the directory: Ls Parameters: -A: displays all files (includ

2nd Day "Introduction to OS Linux distributions, Getting Started with Linux system basics, Linux command Help, Linux basic Commands"

Logout Exit SystemGedit Text Editor ToolsUname–r View kernel version information, uname–a more detailsCat/proc/cpuinfo viewing CPUsCat/proc/meminfo Viewing memoryHostname Viewing host namesIfconfig eth0 view eth0 IP AddressAlias ls= ' ls–ll ' setting aliasesTo view the path of the current terminal: TTYView current Shell:echo $SHELLAll Shell:cat/etc/shells under the current systemView CentOS System hostname Format: Echo $PS 1Distinguish internal or external commands: Type CDWhich find the locatio

Linux server automatically cuts and cleans logs Linux system Linux how to read Linux tutorials

. As we all know,linux system everything is a file, so each process has its file descriptor, The Nginx process writes its own file descriptor to the Nginx.pid, and we need to tell Nginx to reopen a new log file (the configuration details of the log file can be seen here, simply by letting the log record what. So we need this directive:kill -USR1 `cat ${pid_path}`This instruction means: first cat to Nginx PID, is an integer, and then send the signal

Linux install software memo Linux u disk install Linux get started Linux install JDK

Downloadwget http://.....tar.gzExtractTAR-ZXVF xxx.tar.gzcd XXX./configure--prefix=/usr/local/xxx--with-x=/usr/local/xCompileMakeInstallationMake installNginx Start/usr/local/nginx/sbin/nginx Stop/usr/local/nginx/sbin/nginx-s Stop Focus/usr/local/nginx/sbin/nginx-s Reload httpd start, shut down, restart/usr/local/http/bin/apachectl-k [Start | stop ...]Find processPs-ef|grep xxx The above describes the Linux installation software memorandum, i

Good Book recommendations-classic books on learning Linux (deep understanding of linux kernels, Linux Device Drivers, etc)

Becoming a Senior Programmer proficient in Linux programming has always been the goal of many friends. According to statistics from chinacache, the monthly salary of Linux programmers in Beijing is 1.8 times that of Windows programmers, 2.6 times that of Java programmers, and 2.9 times that of Windows programmers. At the same time, the data shows that with the increase of work experience, the income gap bet

Understanding of Linux System in Linux OS Analysis and learning from Linux kernel

After this period of time to learn, I also have a certain understanding of Linux, today this blog on the previous knowledge of a summary it.The previous Linux learning blog, from the top down is learning in-depth process, my blog link is as follows:First: Analysis of the Linux operating system how the computer starts and how it operatesChapter Two: Analysis of

/Usr/src/Linux/inlcude/Linux and/usr/include/Linux

1.The number of files in/usr/include/Linux and/usr/src/Linux/include/Linux is notThe number of folders varies. For example, the/usr/include/Linux does not have the mosules folder, while the/usr/src/Linux/include/LinuxThis folder is available. /Usr/src/

Understanding the Linux network stack (Linux networking stack) (1): A simple summary of the Linux network protocol stack

This series of articles summarizes Linux network stacks, including:(1) Linux Network protocol Stack Summary(2) Network multipart offload technology Gso/tso/ufo/lro/gro in non-virtualized Linux environment(3) QEMU/KVM Network multipart offload technology in virtualized Linux environment Gso/tso/ufo/lro/gro1.

Linux Study Notes 1-basic knowledge of Linux and introduction to C Programming in Linux

Document directory I. Linux operating system source Ii. Basic Linux knowledge Iii. Introduction to C Programming in Linux This article is original and must be reproduced with the following source:Http://blog.csdn.net/qinjuning Starting from today, I made up my mind to step into the Linux Hall step by step. Wh

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