Linux See Network Traffic

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In-depth understanding of Linux memory mapping mechanism

I. Introduction We often see some similar in the program disassembled code 0 × 32118965 this address, the operating system called linear address, or virtual address. What is the use of virtual address? Virtual address is how to translate into physical memory address? This chapter will give a brief account of this. 1.1 Linux Memory Addressing Overview Modern operating systems are in 32-bit protected mode. Each process can generally address 4G of physical space. But our physical memory is generally hundreds of M, the process can get 4 ...

Individual independent blog Build choose Linux Host or Windows host

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest cloud host technology Hall according to the current development of host market, Especially as Windows for PHP and other functional support, while the individual independent blog to build the choice of Linux host or Windows host does not seem to be the most important. But in fact, this question has always been the most worthy of personal webmaster ...

Advanced Linux Routing and Traffic Control: Building bridges and using ARP proxy to construct pseudo-network bridges

A network bridge is a device that is installed on a network and does not require any subsequent configuration. The network switch is basically a multiple-port network bridge. This means that the bridge is a two-port switch. Linux can support a network bridge with multiple interfaces and become a real exchanger. Bridges are often used to improve networks that http://www.aliyun.com/zixun/aggregation/7317.html "> work poorly but cannot be rebuilt." Because the bridge is a 2-layer device (IP below the layer), ...

Building and managing techniques for Linux container tools (LXC)

The original LXC technology was developed by IBM and has now entered the core of the Linux kernel, which means that LXC technology will be the most competitive lightweight virtual container technology at the moment, and this article will http://www.aliyun.com/zixun/aggregation/ 32779.html "> Step-by-Step introduction of how to build and manage Linux containers. The Linux distribution version used in this article is Ubuntu 12.04. LXC ...

Advanced Linux Routing and Traffic Control: implementing IPV6 with Cisco and 6bone

1. http://www.aliyun.com/zixun/aggregation/9485.html ">ipv6 tunnel" This is another application of the Linux tunneling capability. This is very popular in the early implementations of IPV6. The following hands-on example is certainly not the only way to implement a IPv6 tunnel. However, it is a common method of building tunnels between Linux and Cisco routers that support IPV6, as has been proven by most people. It's probably right for you to ☺. Jane ...

Advanced Linux Routing and traffic control: multicast routing

Multicast-howto is already very old (relatively), and inaccurate and even mistaken for 21136.html "> Reader. Before you start multicast routing, you need to reconfigure your Linux kernel to support the type of multicast routing you want to implement. This step requires you to decide what type of multicast route to use. There are basically four kinds: DVMRP (multicast version of the RIP Unicast Protocol), MOSPF (similarly, just OSPF), PIM ("Pr ...").

Advanced Linux Routing and Traffic Control: Kernel network parameters

The kernel has many parameters that can be adjusted in different environments. Typically, the default defaults can meet 99% of the environmental requirements, we don ' t call the http://www.aliyun.com/zixun/aggregation/3415.html ' >advanced HOWTO for The fun of it! There is a very interesting place:/proc/sys/net, you should see. Here in the beginning did not put all the ...

Monitoring the network performance of a system with a Linux graphical tool

You can use Linux's graphical tools to easily monitor your system's network performance. In this article, you will learn how to use the MRTG (SNMP-based, monitoring http://www.aliyun.com/zixun/aggregation/10374.html "> Network traffic tools) and Webalizer (the tool that analyzes the site hit Ratio). Many servers, routers, and firewalls are insured in their object markers (OIDs) that they ...

Centos/redhat Linux simple to build ganglia monitoring system

Ganglia monitoring software is mainly used to monitor the performance of the software, such as: CPU, MEM, hard disk utilization, I/O load, network traffic, etc., through the curve is very easy to see the work of each node, the reasonable adjustment, distribution system resources, improve the overall performance of the system plays an important role. Support browser access, but can not monitor node hardware specifications, ganglia is a distributed monitoring system, there are two Daemon, respectively: Client ganglia monitoring Daemon (Gmond ...

Web site space traffic beyond the causes and solutions

Intermediary transaction http://www.aliyun.com/zixun/aggregation/6858.html ">seo diagnose Taobao guest Cloud host technology Hall is really busy, or I am more and more lazy, think I do not know when I wrote something."   Today is also in the work encountered a previously never met the problem-the site space traffic exceeded, because in so late late at night to share the "site space flow beyond the reasons and solutions?" ...

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