Little Yue TimorProduct ManagerdoC-End user experience Product Manager, focused on functional design and interaction. As mobile internet matures and traffic bonuses disappear, user experience Product manager survival space is quickly eroded. In 2017 to try two transformations, one is the mutual gold industry data products is not a success, the latter is a coincidence into the AI circle, more than half a year, a long time have been very anxious, with practice and thinking accumulated, to B produc
destination NAT, which changes the packet IP address before routing.
Postrouting: For source NAT, which changes the packet IP address before routing.
OUTPUT: NAT for local build packages on the firewall.
Mangle table: Changes for a specific package:
Prerouting
OUTPUT
FORWARD
INPUT
Postrouting
Raw table: For configuration exemptions:
Prerouting
OUTPUT
The iptable inside the OpenStack
Within the OpenStack, you will find the iptable chain and rules dominate in the Compute-nova module,
Introduction: "Cloud computing" is currently a hot technology direction, this article from Google's cloud computing platform APP Engine, a brief introduction to the Java developers of Google's cloud computing platform. Starting with an actual ebook sharing application, this article describes how to build this application on the Google app Engine platform.
Introduction to the basic concept of "cloud computing"
According to Wikipedia's definition, cloud computing is a dynamically scalable, and o
today I decided to talk to you about VMware solutions and certification systems, because my understanding of virtualization begins with VMware. VMware's leadership in virtualization and private cloud remains unchallenged, despite several strategic adjustments and personnel changes in recent years, regardless of whether EMC federation or Dell ties operate independently. As a pure software company, VMware, through its own complete certification system and interface open strategy to attract, so
Linux System 7 Basic understandingRed Hat Company officially released the Enterprise Linux 7 release on June 11, 2014, which has been enhanced in bare servers, virtual machines, IaaS and PaaS, and more reliable and more robust data center environments to meet a variety of business requirements. RHEL 7 provides enterprises with a cohesive, unified infrastructure architecture and the latest service environments, including Linux containers, big data, and
What is serverless?Serverless Chinese as a "no server", dating back to 2012 Ken Fromm published "Why the Future of software and Apps is serverless", he described a scenario, from the user's own maintenance of the physical machine, To IaaS, to PAAs, the transformation of the computational paradigm does not stop, and when the cloud infrastructure matures, the application can take care of the presence of the server, and no server computing allows develop
recording of response time. Provide statistical data for program tuning and scaling.
Message Queuing
Platform Message Queuing employs Kafka technology, Kafka is a highly-throughput distributed subscription message system that handles all the action flow data in a consumer-scale web site. Mainly used for:
-Message communication between services to achieve complete business logic.
-Provide queue services for large concurrent business to avoid service crashes under large concurrency.
Distributed F
simple to review the Calico architecture and key components to facilitate understanding.
Calico Architecture
Calico is a three-tier data center network solution and facilitates integrated OpenStack, an IaaS cloud architecture that delivers highly efficient and controllable communication between VMS, containers, and bare-metal.
Combined with this picture above, we've been through Calico's core components: Felix,calico agent, running on each node that
server. Cloud servers provide resilient cloud technology to adjust cloud host configuration, consolidate computing, storage, and network resource IaaS services, and have cloud host leasing services on demand and on-demand pay-as-you-go capabilities. There is a great improvement in flexibility, controllability, scalability and resource reusability.
Cloud server services include two core products: Cloud Server leasing Service for SME users and high-end
OpenStack Installation Deployment Tutorial
OpenStack is a free software and open source project, developed and launched by NASA and Rackspace, in collaboration with the Apache license. At the same time, OpenStack is an open-source cloud computing management platform that supports almost all types of cloud environments with the goal of delivering simple, scalable, rich, standard, unified cloud management platforms. OpenStack is designed to provide software for the construction and management of
The official website www.openstack.org the most popular community, sponsored by Rackspace and NASA's Open source cloud computing community, the major IT giants involved in the program, the domestic Sina's SAE contributed a lot. OpenStack is known as the 21st Century Linux open source community, can foresee its development prospects is how vast.
OpenStack's core project was increased from the previous two to the following: Cloud Compute (Nova) project Source: Https://github.com/openstack/nova Clo
Turn from: http://www.ibm.com/developerworks/cn/cloud/library/cl-contributecode-openstack/
Contribute your code to the OpenStack
Sheng Bo Hou, software engineer, IBM
Introduction: As OpenStack (open source cloud software) is supported, more and more individuals and businesses want to contribute to the OpenStack community. Bug reports, blueprint agreements (blueprint>
Release date: July 18, 2013Level: PrimaryOriginal language: EnglishAccess Status: 1154 viewsComments: 0 (View | Add Comment-logi
intermediary, make up Provider service and add value to it
Cloud Carrier (cloud operator), capable of providing transport services connected to Cloud service Provider
As you can see, Provider (supplier) and Consumer (consumer) are core roles. Although the vendor's business and IT models are very similar to the traditional outsourcing model, consumers are the ones who make the most of the cloud innovation capabilities.
Back to IBM Cloud Reference architecture, consumers can choose from four t
To ensure security in a cloud-based BYOD environment, you need a complete and unambiguous security policy. This article describes the potential risks surrounding jailbreak, shared device issues, and how to protect enterprise assets by developing a security policy that is appropriate for all devices.
Overview
Term of this article
Bes:blackberry Enterprise Server
BYOD: self-owned equipment
IaaS: Infrastructure as a service
Jailbreak: Avoid devices
in the creation, construction, commissioning, running, and packaging of scalable services. For some time it was out of Java.
Force.com is a salesforce.com CRM application service that is limited to its proprietary Apex language and Visualforce (presentation layer). Note: Salesforce.com is a SaaS (software as a service), Force.com is a PAAs (platform, service) for Salesforce.com CRM applications. SAP's Business ByDesign is just SaaS.
Heroku limits the use of Ruby on Rails, a language supported
Objective
For a simple environment with only a few servers, deploying a basic environment, or deploying several operating systems with Hyper-V virtualization, may not be a complex task, but a complex data center or a cloud data center of hundreds of or even thousands of servers It may be necessary to expand the node as required and deploy the infrastructure environment, in which case, in addition to the need to start with the modular metal architecture itself, It also requires a powerful means
Problem one: On the basis of virtualization construction, the choice of three private cloud construction direction is discussed.
As we all know, virtualization and cloud computing are different, when the scale and day of virtualization increase, to the urgency of automation, standardization, process and service quality requirements to a certain extent, we will choose to carry out enterprise private cloud construction.
But private cloud construction currently has a roughly three-way direction:
1.
debugging.
8. Cloud computing Business
Proficiency in computing, storage, database, network, messaging, network security, private network and other cloud computing business concepts, logic, architecture and business dependencies, as a container-based computing service-related business simple, clear IaaS, PaaS, SaaS, CaaS, microservices and other basic concepts and basic structure, Understand the classification of cloud computing ownership, familiar
1. Exadata
1.1 Oracle Cloud Computing Introduction
As cloud infrastructure matures, more and more companies are beginning to focus on the implementation of cloud computing, accelerating the deployment of cloud computing solutions, and migrating their IT applications and data resources to cloud environments. For the "cloud" of potential users, they are most concerned about how the "cloud" will be landed, a software and hardware resources in one solution is a key factor in the l
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