66%
14.08.2017
If you have tried OpenStack – as recommended in the second article of this series [1] – you may be thinking: If you can roll out metal as a service (MaaS) and Juju OpenStack within a few hours ... The third article in the OpenStack series deals with the question of how admins run OpenStack in a data center, what they need to consider in terms of planning, and what problems they are likely ... OpenStack in a Data Center ... Running OpenStack in a data center
66%
16.08.2018
(IaaS; e.g., OpenStack and Amazon Web Services), which provides the entire virtual infrastructure, including servers, mass storage, and virtual networks, and Storage as a Service (SaaS; e.g., Dropbox ... At first sight, an OpenStack installation might seem like rocket science, but you can launch a fully functional cloud environment with minimal effort in a relatively short time with the Packstack ... Packstack OpenStack Install ... OpenStack installation with the Packstack installer
66%
14.03.2013
've left this step behind and chosen OpenStack. After all, OpenStack does not exactly enjoy the reputation of being the best-documented project on the open source scene. The documentation has become a whole ... The first article in this workshop looked at the theory behind OpenStack; the second part takes a more hands-on approach: How can you set up an OpenStack cloud on a greenfield site? ... OpenStack Cloud Installation ... OpenStack workshop, part 2: OpenStack cloud installation
66%
15.08.2016
If you have studied the SDN, you probably know something about cloud computing. SDN would not be as widespread as it is today if cloud solutions such as OpenNebula or OpenStack did not include SDN ... In classical network settings, software-defined networking (SDN) is a nice add-on, but in clouds, virtual networks are an essential part of the environment. OpenStack integrates SDN technology ... Neutron: SDN for OpenStack ... Software-defined networking in OpenStack with the Neutron module
66%
14.11.2013
Networks (SDNs) and OpenFlow [1]. OpenFlow is an Open Networking Foundation (ONF) standard protocol that abstracts the complex details of a fast and efficient switching architecture. Today, OpenFlow offers ... Software Defined Networking (SDN) marks a paradigm shift toward a more holistic approach for managing networking hardware. The Floodlight OpenFlow controller offers an easy and inexpensive way ... OpenFlow and the Floodlight OpenFlow Controller
65%
25.09.2023
. Information from flows can fill this gap. Today, many network devices let you export this kind of information, but the opportunity often remains unused.
In this article, we look into the use of OpenNMS Horizon ... OpenNMS collects and visualizes flows so you can discover which network devices communicate with each other and the volume of data transferred. ... OpenNMS Horizon and Flows
65%
30.11.2025
and maintained only by Red Hat.
In more recent versions (e.g., 2.0 in RHEL 5 and Fedora Core 6 or later), the legacy CMAN implementation was replaced by an open implementation based on the Application Interface ... Setting up high-availability cluster resources is part of the administrator's standard bag of tricks. We look at the basic setup of a cluster using the free OpenAIS/Corosync-based cluster suite. ... Clustering with OpenAIS and Corosync
65%
30.11.2025
, so this organization turned to an open source remote access solution, FreeNX, and the WiKID Strong Authentication System for two-factor authentication.
The WiKID system [1] is a dual-source, two ... FreeNX and the WiKID Strong Authentication System combine to create open source remote access that delivers the speed of NX with the security of SSH tunnels and Linux. ... Open source remote access to Windows
65%
13.02.2017
, and it checks the availability of a device. Most discovery plugins require its successful execution.
HTTP: Tries to open connections to ports 80 and 443 of the specified IP address. Also tries to discover ... promising newcomer is Ralph, the open source specialist tool. ... Ralph, the open asset management tool
65%
10.04.2015
Finding open UDP or TCP ports on Linux is easy. Hardcore hackers use Netcat [1]. If you prefer an easier approach, you can use Nmap [2]. In addition to identifying active services, you can even ... TCP Stealth hides open ports
