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Showing posts from 2015

Hands on Drupal

This video features Drupal CMS and Apache Solr search server Building big engaging content delivery system      

hands on stackflowos

Data center security is fairly well-understood on a physical level: hardware-based firewalls mitigate threats at the perimeter of the data center. IPS devices may be deployed inline within the data center. VLANs and the StackflowOs  Virtual Fabric feature provide a certain amount inherent separation, and Virtual Private Networks (VPNs) provide secure access to data center resources for remote clients. Of greater concern for most IT managers in a multitenant environment is securely isolating each tenant’s data flows from other tenants operating on the same server. To address these concerns, the StackflowOs also serves as virtual security appliance for each tenant, providing stateful firewall between tenants, as shown on the diagram below and for in-depth coverage watch the video below The following video will guide you on how you can use the StackFlowOs to build SDN enable network

How to devStack on single machine with Overlay VxLAN Tunnels part1

Installing OpenStack from Source     Bare Fact's  ● Project Git Trees: 30 - 40                                   ● Python Dependencies: 50 – 100                  ● Linux Distro Dependencies: > 100                 ● Databases: 5 – 10                                                ● Configuration Changes to System: ... a lot Written in Bash Prompts for 5 passwords Supports latest master + supported stable branches Core part of OpenStack's testing infrastructure Core part of OpenStack developer workflo What DevStack Does ● Installing all prereq software via packages or pip ● Installing all OpenStack software via git to latest master ● Configuring and installing working database schema ● Configuring hypervisor, storage backends, networks ● Creating service ids and service catalog entries to connect all components ● Starting all OpenStack services under screen (for easy hot fix) ● Creating Apache configuration for web dashboar

How to devStack on single machine with Overlay VxLAN Tunnels part2

Devstack Basic Operations from Horizon, launch your first instance follow the steps from the screen shot's below VXLAN stands for Virtual eXtensible Local Area Network, and is a means to solve the scaling challenges of VLAN networks in a multitenant environment.VXLAN is an overlay network which transports an L2 network over existing L3 network. For more information on VXLAN, please see RFC 7348: Encapsulation Overview  Layer 2 Overlay scheme over Layer 3 network  Designed for VM-to-VM communication in mind  VXLAN should be transparent to end hosts  Provide L2 segmentation ability > 4096 VLANs  24 bit VXLAN Network Identifier (VNI)  16M VXLAN segments Encapsulation Overview  Layer 2 Overlay s