Ubuntu Check Network Traffic

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Hadoop Copvin--45 common problem solutions

In the work life, some problems are very simple, but often search for half a day can not find the required answers, in the learning and use of Hadoop is the same.  Here are some common problems with the Hadoop cluster settings: 3 models that 1.Hadoop clusters can run?  Single-machine (local) mode pseudo-distributed mode 2. Attention points in stand-alone (local) mode? There is no daemon in stand-alone mode (standalone), ...

Hadoop Copvin--45 common problem solutions

In the work life, some problems are very simple, but often search for half a day can not find the required answers, in the learning and use of Hadoop is the same.   Here are some common problems with the Hadoop cluster settings: 3 models that 1.Hadoop clusters can run?  Single-machine (local) mode pseudo-distributed mode 2.   Attention points in stand-alone (local) mode? In stand-alone mode (standalone) ...

Network optimization Nginx and node.js have several ways?

Translator: Alfredcheung on the topic of building high throughput Web applications, Nginx and Node.js are natural couples. They are all based on the event-driven model and are designed to easily break through the c10k bottlenecks of traditional Web servers such as Apache. Preset configurations can be highly concurrent, but there is still work to do if you want to do more than thousands of requests per second on inexpensive hardware. This article assumes that readers use Nginx's httpproxymodule for upstream node ....

A simple understanding of the fundamentals and advantages of open source frameworks

When it consulting firm Opencredo plans to deliver three new applications to a major insurer in seven months, it has set itself three goals: shortening development time, allowing frequent customer changes, and architecting a system that can handle unpredictable traffic spikes. CEO Russel Miles believes that with the help of cloud foundry open source framework and other Open-source software, Opencredo has done "some heavy work", such as configuring virtual machines and adjusting storage volumes ...

The most useful ten open source firewall in Linux system

Today, open source firewalls are numerous.   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 function is to filter packets from the network stack in the kernel, including: listing the contents of the packet filtering rule set, and executing fast because it only checks the header of the packet, and the administrator can ...

Tuning Linode VPS: Small-scale low-performance low-flow Web site optimization Practice

Intermediary transaction SEO diagnosis Taobao guest Cloud host technology Hall happened to see the previous wrote this post "small scale low performance low flow Web site design principles", re-sent to micro-blog caused a little response, feel the need to Linode VPS as an example of a simple optimization practice, so that someone always ask me,   and also to earn a bit of clicks:) Assuming now you've got a basic VPS available, basic memory 512MB. Refer to the various installation instructions provided by the official to run this combination of LAMP ...

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 ...

Windows Azure cloud Services Manage clouds with command line

A few weeks ago, I published a blog about Windows Azure cloud services. I'm digging up new things and experimenting with mac,pc and Linux (I prefer Ubuntu). As a fan of PowerShell and command lines for a long time, I've been looking for ways to handle transactions in text mode, as well as the creation and deployment of script sites. There was a whole bunch of ways to access Azure using the command line-more than I thought. There is a JSON based Web API that will let those workers ...

How to connect and manage open VSwitch using floodlight

Open VSwitch (hereinafter referred to as OVS) is a virtual switch led by Nicira NX, running on a virtualized platform such as Kvm,xen. On the virtualization platform, OVS can provide 2-layer switching capabilities for dynamically changing endpoints, and a good control over access policies, network isolation, http://www.aliyun.com/zixun/aggregation/12060.html ">" in Virtual Networks Traffic monitoring and so on. ...

Quintolabs Content Security 1.4.0.72BBF Release

Quintolabs Content http://www.aliyun.com/zixun/aggregation/16952.html ">security is an ICAP daemon URL rewrites your squid proxy server, Thus provides a rich content filtering function, to the Internet traffic flow to the enterprise internal network processing. It can be used to prevent illegal or potentially malicious file downloads, remove annoying ads, prevent access to various websites, and prevent pornography from being funded ...

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