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• Oracle Solaris 11 How To Guides

  - by glynn

  Over the past year or so I've been writing a lot of How To Guides for different technologies. While we have really excellent product documentation (including the best set of manual pages available on any UNIX or Linux platform), the various How To Guides we have help to complement some of that learning, giving administrators a chance to learn the motivations for different technologies with a simple set of examples. Not only are they fun to research and write, they're also one of the more popular items on our Oracle Solaris 11 technology pages on OTN. So here's a link to bookmark and come back to on a regular basis: Oracle Solaris 11 How To Guides. We've got an excellent line up of articles there, and below is a list of the ones I've been involved in writing. Let us know if there are technologies that you think a How To Guide would help with and we'd be happy to get them onto our list! TitleLink Taking your First Steps with Oracle Solaris 11An introduction to installing Oracle Solaris 11, including the steps for installing new software and administering other system configuration. Introducing the basics of IPS on Oracle Solaris 11How to administer an Oracle Solaris 11 system using IPS, including how to deal with software package repositories, install and uninstall packages, and update systems. Advanced administration with IPS on Oracle Solaris 11Take a deeper look at advanced IPS to learn how to determine package dependencies, explore manifests, perform advanced searches, and analyze the state of your system. How to create and publish packages with IPS on Oracle Solaris 11How to create new software packages for Oracle Solaris 11 and publish them to a network package repository. How to update your Oracle Solaris 11 systems using Support Repository UpdatesThe steps for updating an Oracle Solaris 11 system with software packages provided by an active Oracle support agreement, plus how to ensure the update is successful and safe. Introducing the basics of SMF on Oracle Solaris 11Simple examples of administering services on Oracle Solaris 11 with the Service Management Facility. Advanced administration with SMF on Oracle Solaris 11Advanced administrative tasks with SMF, including an introduction to service manifests, understanding layering within the SMF configuration repository, and how best to apply configuration to a system.

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• Oracle University Neue Kurse (KW 14)

  - by swalker

  In der letzten Woche wurden von Oracle University folgende neue Kurse (bzw. Versionen davon) veröffentlicht: Database Oracle Data Modeling and Relational Database Design (4 Tage) Fusion Middleware Oracle Directory Services 11g: Administration (5 Tage) Oracle Unified Directory 11g: Services Deployment Essentials (2 Tage) Oracle GoldenGate 11g Management Pack: Overview (1 Tag) Oracle SOA Suite 11g: Essential Concepts NEU (German version - 3 Tage) Business Intelligence & Datawarehousing Oracle Database 11g: Data Mining Techniques (2 Tage) Oracle Solaris Oracle Solaris 10 System Administration for HP-UX Administrators (5 Tage) E-Business Suites R12.x Oracle Time and Labor Fundamentals Wenn Sie weitere Einzelheiten erfahren oder sich über Kurstermine informieren möchten, wenden Sie sich einfach an Ihr lokales Oracle University-Team in. Bleiben Sie in Verbindung mit Oracle University: LinkedIn OracleMix Twitter Facebook Google+

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• December events for Oracle VM

  - by Chris Kawalek

  Where in the world is Oracle VM in December? Whether you are in the US, Asia or the UK, you can find us in December at any of the events below: UK Oracle User Group Conference 2012 Birmingham, United Kingdom December 1st – 5th, 2013 Check out the Oracle Virtualization Strategy and Roadmap Session on December 5 Gartner Data Center Conference 2012 Las Vegas, Nevada, USA December 3rd – 6th, 2013 Visit the Oracle Booth to learn about Oracle VM and Optimized Data Center Solutions. NetApp Insight Sheraton Macau, Macau, China December 11-13, 2013 Oracle VM & NetApp Storage Connect integrated solutions to simplify virtualized infrastructure management

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• New Certification Exam: "Oracle Database 12c: SQL Fundamentals" Released (1Z0-061)

  - by Brandye Barrington

  Oracle Certification begins testing this week for the new Oracle Database 12c Administrator Certified Associate (OCA) certification.  Testing for the Oracle Database 12c: SQL Fundamentals (1Z0-061) exam is now underway. Visit pearsonvue.com/oracle and register for exam 1Z0-061. You can get all preparation details, including exam objectives, number of questions, time allotments, and pricing on the Oracle Certification Website. Earning the Oracle Database 12c Administrator Certified Associate (OCA) credential demonstrates that you carry the foundational knowledge and skills needed to administer the Oracle Database, and sets the stage for your future progression to Oracle Database 12c Administrator Certified Professional (OCP). With Oracle Database 12c, you will experience the benefits of an Oracle Database that is re-engineered for Cloud computing. Multitenant architecture brings enterprises unprecedented hardware and software efficiencies, performance and manageability benefits, and fast and efficient Cloud provisioning. Oracle Database 12c certifications emphasize the full set of skills that DBAs need in today's competitive marketplace. Be among the first to obtain this ground breaking new Oracle Certified Associate (OCA) certification by registering for this exam today. QUICK LINKS Certification Path: Oracle Database 12c Administrator Certified Associate (OCA) Certification Exam: Oracle Database 12c: SQL Fundamentals (1Z0-061) Registration: pearsonvue.com/oracle

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• Software architecture for two similar classes which require different input parameters for the same method

  - by I Like to Code

  I am writing code to simulate a supply chain. The supply chain can be simulated in either an intermediate stocking or a cross-docking configuration. So, I wrote two simulator objects IstockSimulator and XdockSimulator. Since the two objects share certain behaviors (e.g. making shipments, demand arriving), I wrote an abstract simulator object AbstractSimulator which is a parent class of the two simulator objects. The abstract simulator object has a method runSimulation() which takes an input parameter of class SimulationParameters. Up till now, the simulation parameters only contains fields that are common to both simulator objects, such as randomSeed, simulationStartPeriod and simulationEndPeriod. However, I now want to include fields that are specific to the type of simulation that is being run, i.e. an IstockSimulationParameters class for an intermediate stocking simulation, and a XdockSimulationParameters class for a cross-docking simulation. My current idea is take the method runSimulation() out of the AbstractSimulator class, but to put a runSimulation(IstockSimulationParameters) method in the IstockSimulator class, and a runSimulation(XdockSimulationParameters) method in the IstockSimulator class. I am worried however, that this approach will lead to code duplication. What should I do?

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• Oracle University New Courses (Week 23)

  - by swalker

  Oracle University released the following new (versions of) courses recently: Engineered Systems Exadata Database Machine Administration Workshop (Training On Demand) Development Tools Oracle Fusion Middleware 11g: Build Applications with ADF I (Training On Demand) Fusion Middleware Oracle AIA Foundation Pack 11g: Developing Applications (Training On Demand) Oracle Exalogic Elastic Cloud Administration (Training On Demand) Oracle GoldenGate 11g Fundamentals for Oracle (Training On Demand) Oracle Fusion Middleware 11g: Build Applications with ADF I (Training On Demand) Oracle WebCenter Portal 11g: Spaces Administration (3 days) Java Architect Enterprise Applications with Java EE (5 days) Hyperion Oracle Hyperion Planning 11.1.2: Create & Manage Applications (Training On Demand) Oracle Hyperion Financial Mgmt 11.1.2: Create & Manage Applications (Training On Demand) Get in contact with your local Oracle University team for more details and course dates. Stay Connected to Oracle University: LinkedIn OracleMix Twitter Facebook Google+

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• C# class architecture for REST services

  - by user15370

  Hi. I am integrating with a set of REST services exposed by our partner. The unit of integration is at the project level meaning that for each project created on our partners side of the fence they will expose a unique set of REST services. To be more clear, assume there are two projects - project1 and project2. The REST services available to access the project data would then be: /project1/search/getstuff?etc... /project1/analysis/getstuff?etc... /project1/cluster/getstuff?etc... /project2/search/getstuff?etc... /project2/analysis/getstuff?etc... /project2/cluster/getstuff?etc... My task is to wrap these services in a C# class to be used by our app developer. I want to make it simple for the app developer and am thinking of providing something like the following class. class ProjectClient { SearchClient _searchclient; AnalysisClient _analysisclient; ClusterClient _clusterclient; string Project {get; set;} ProjectClient(string _project) { Project = _project; } } SearchClient, AnalysisClient and ClusterClient are my classes to support the respective services shown above. The problem with this approach is that ProjectClient will need to provide public methods for each of the API's exposed by SearchClient, etc... public void SearchGetStuff() { _searchclient.getStuff(); } Any suggestions how I can architect this better?

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• Oracle Days 2013 in EMEA Are Coming Soon: Invite Your Customers!

  - by Javier Puerta

  Oracle Days will again be hosted across EMEA this October and November (schedule here). By attending an Oracle Day, your customers can: Hear the new announcements from Oracle OpenWorld See customer case studies showing innovation in practice. Discuss key issues for business and IT executives in cloud, mobile, social, big data, The Internet of Things Network with peers who are facing the same challenges Meet Oracle experts and watch live demos of new products  Promoting Oracle Day to Your Customers Follow the Oracle Day schedule in EMEA Direct your customers to the Oracle Day 2013 video on Oracle.com

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• Oracle Magazine, September/October 2009

  Oracle Magazine September/October features articles on benefits of Oracle Fusion Middleware 11g, Oracle's database security and identity management solutions, Oracle OpenWorld preview, easily move application data with Oracle Data Integrator, scripting Oracle RMAN commands, Tom Kyte answers your questions, debugging with Oracle Application Development Framework, array binding, best PL/SQL practices, Oracle Application Express and Amazon EC2, Oracle WebCenter for integrating applications and much more.

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• Data architecture for event log metrics?

  - by elliot42

  My service has a large ongoing number of user events, and we would like to do things like "count occurrence of event type T since date D." We are trying to make two basic decisions: What to store? Storing every event vs. only storing aggregates (Event log style) log every event and count them later, vs. (Time-series style) store a single aggregated "count of event E for date D" for every day Where to store the data In a relational database (particularly MySQL) In a non-relational (NoSQL) database In flat log files (collected centrally over the network via syslog-ng) What is standard practice / where can I read more about comparing the different types of systems? Additional details: The total event stream is large, potentially hundreds of thousands of entries per day But our current need is only to count certain types of events within it We don't necessarily need real-time access to the raw data or aggregation results IMHO, "log all events to files, crawl them at a later time to filter and aggregate the stream" is a pretty standard UNIX Way, but my Rails-y compatriots seem to think that nothing is real unless it's in MySQL.

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• Oracle University Neue Kurse (KW 23)

  - by swalker

  In der letzten Woche wurden von Oracle University folgende neue Kurse (bzw. Versionen davon) veröffentlicht: Engineered Systems Exadata Database Machine Administration Workshop (Training On Demand) Development Tools Oracle Fusion Middleware 11g: Build Applications with ADF I (Training On Demand) Fusion Middleware Oracle AIA Foundation Pack 11g: Developing Applications (Training On Demand) Oracle Exalogic Elastic Cloud Administration (Training On Demand) Oracle GoldenGate 11g Fundamentals for Oracle (Training On Demand) Oracle Fusion Middleware 11g: Build Applications with ADF I (Training On Demand) Oracle WebCenter Portal 11g: Spaces Administration (3 Tage) Java Architect Enterprise Applications with Java EE (5 Tage) Hyperion Oracle Hyperion Planning 11.1.2: Create & Manage Applications (Training On Demand) Oracle Hyperion Financial Mgmt 11.1.2: Create & Manage Applications (Training On Demand) Wenn Sie weitere Einzelheiten erfahren oder sich über Kurstermine informieren möchten, wenden Sie sich einfach an Ihr lokales Oracle University-Team in. Bleiben Sie in Verbindung mit Oracle University: LinkedIn OracleMix Twitter Facebook Google+

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• PyQt application architecture

  - by L. De Leo

  I'm trying to give a sound structure to a PyQt application that implements a card game. So far I have the following classes: Ui_Game: this describes the ui of course and is responsible of reacting to the events emitted by my CardWidget instances MainController: this is responsible for managing the whole application: setup and all the subsequent states of the application (like starting a new hand, displaying the notification of state changes on the ui or ending the game) GameEngine: this is a set of classes that implement the whole game logic Now, the way I concretely coded this in Python is the following: class CardWidget(QtGui.QLabel): def __init__(self, filename, *args, **kwargs): QtGui.QLabel.__init__(self, *args, **kwargs) self.setPixmap(QtGui.QPixmap(':/res/res/' + filename)) def mouseReleaseEvent(self, ev): self.emit(QtCore.SIGNAL('card_clicked'), self) class Ui_Game(QtGui.QWidget): def __init__(self, window, *args, **kwargs): QtGui.QWidget.__init__(self, *args, **kwargs) self.setupUi(window) self.controller = None def place_card(self, card): cards_on_table = self.played_cards.count() + 1 print cards_on_table if cards_on_table <= 2: self.played_cards.addWidget(card) if cards_on_table == 2: self.controller.play_hand() class MainController(object): def __init__(self): self.app = QtGui.QApplication(sys.argv) self.window = QtGui.QMainWindow() self.ui = Ui_Game(self.window) self.ui.controller = self self.game_setup() Is there a better way other than injecting the controller into the Ui_Game class in the Ui_Game.controller? Or am I totally off-road?

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• Oracle Days 2013 in EMEA Are Coming Soon: Invite Your Customers!

  - by Javier Puerta

  Oracle Days will again be hosted across EMEA this October and November (schedule here). By attending an Oracle Day, your customers can: Hear the new announcements from Oracle OpenWorld See customer case studies showing innovation in practice. Discuss key issues for business and IT executives in cloud, mobile, social, big data, The Internet of Things Network with peers who are facing the same challenges Meet Oracle experts and watch live demos of new products  Promoting Oracle Day to Your Customers Follow the Oracle Day schedule in EMEA Direct your customers to the Oracle Day 2013 video on Oracle.com

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• Oracle Magazine, May/June 2008

  Oracle Magazine May/June features articles on Oracle enterprise application development, service-oriented architecture, Oracle on Microsoft Windows, Oracle OLAP 11g, creating database connections in Oracle SQL Developer, new backup and recovery features in Oracle Database 11g, using Oracle SQL Developer to debug Oracle Application Express applicaitons, PL/SQL best practices, building applications with Oracle Developer Tools for Visual Studio, and much more.

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• Register Today for the Oracle Value Chain Summit 2013

  - by Pam Petropoulos

  Date: February 4 – 6, 2013 Location: Hyatt Regency San Francisco The Oracle Value Chain Summit will bring together users, partners, and luminaries to learn how Oracle is helping companies transform supply chains into value chains to gain competitive edge. This Summit will combine the intimate atmosphere of previous supply chain  events, such as the Oracle PLM and Oracle Maintenance Summits, under one roof and will include almost 200 sessions across all supply chain management solution areas. Oracle’s AutoVue enterprise visualization solutions will be featured as part of the PLM track, where they’ll be showcased within the context of Agile PLM, as well as Oracle’s next generation visualization solutions.   Don’t miss this opportunity to learn more about visualization successes and best practices through sessions featuring customer testimonials, solution demonstrations, and networking activities. Visit the event site for further details and agenda information. An early bird registration fee of $195 is available until December 31, 2012. Click here to register today!

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• Gathering application architecture

  - by userbb

  Suppose there is system for gathering info about system activities. There is a client part with an interface and there are agent parts that are installed on each machine. I estimate that there could be max 20 computers now. Later could be more like 50. My solutions: Agent stores data into local database e.g. sqlite. There is also a service which can be used by a client to query data. So if a client wants to display data for 50 computers, he sends a query to 50 computers. I'am on that solution now but maybe it's totally wrong. Agent stores data into local database (I don't known good one for that). There is also server (main database) and local databases are synchronized with the server. In this case, a client connects to the main database to display data. Agent sends data in realtime to main database. So same as point 2, but there is no sync. Like in point 3, but agent buffers data in local database and sends it in small chunks to main database. What is the best approach?

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• Architecture for dashboard showing aggregated stats [on hold]

  - by soulnafein

  I'd like to know what are common architectural pattern for the following problem. Web application A has information on sales, users, responsiveness score, etc. Some of this information are computationally intensive and or have a complex business logic (e.g. responsiveness score). I'm building a separate application (B) for internal admin tasks that modifies data in web application A and report on data from web application A. For writing I'm planning to use a restful api. E.g. create a new entity, update entity, etc. In application B I'd like to show some graphs and other aggregate data for the previous 12 months. I'm planning to store the aggregate data for each month in redis. Some data should update more often, e.g every 10 minutes. I can think of 3 ways of doing this. A scheduled task in app B that connects to an api of app A that provides some aggregated data. Then app B stores it in Redis and use that to visualise pages. Cons: it makes complex calculation within a web request, requires lot's of work e.g. api server and client, storing, etc., pros: business logic still lives in app A. A scheduled task in app A that aggregates data in an non-web process and stores it directly in Redis to be accessed by app B. A scheduled task in app A that aggregates data in a non-web process and uses an api in app B to save it. I'd like to know if there is a well known architectural solution to this type of problems and if not what are other pros/cons for the solution I've suggested?

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• Announcing Oracle WebLogic 12c

  - by alexismp

  While this blog is mostly devoted to GlassFish, you may be interested in the Oracle WebLogic Server 12c announcement scheduled for December 1st, 2011. The launch event is called "Introducing Oracle WebLogic Server 12c, the #1 Application Server Across Conventional and Cloud Environments" and will be split into Executive Overview and Developer Deep Dive sessions. The agenda description includes the following (emphasis is mine) : • Optimized to run your solutions for Java Platform, Enterprise Edition (Java EE); Oracle Fusion Middleware; and Oracle Fusion Applications • Enhanced with transformational platforms and technologies such as Java EE 6, Oracle’sActive GridLink for RAC, Oracle Traffic Director, and Oracle Virtual Assembly Builder On a slightly less official note but on that same topic, you should check out Steve Button's blog and twitter stream.

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• Mobile (Client) to Amazon S3 (Server) - Architecture

  - by wasabii

  let's start off with the problem statement: My iOS application has a login form. When the user logs in, a call is made to my API and access granted or denied. If access was granted, I want the user to be able to upload pictures to his account and/or manage them. As storage I've picked Amazon S3, and I figured it'd be a good idea to have one bucket called "myappphotos" for instance, which contains lots of folders. The folder names are hashes of a user's email and a secret key. So, every user has his own, unique folder in my Amazon S3 bucket. Since I've just recently started working with AWS, here's my question: What are the best practices for setting up a system like this? I want the user to be able to upload pictures directly to Amazon S3, but of course I cannot hard-code the access key. So I need my API to somehow talk to Amazon and request an access token of sorts - only for the particular folder that belongs to the user I'm making the request for. Can anyone help me out and/or guide me to some sources where a similar problem was addressed? Don't think I'm the first one and the amazon documentation is so extensive that I don't really know where to start looking. Thanks a lot!

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• Examples of different architecture methodologies

  - by Lane

  Is there a resource or site which illustrates building the same application (desktop or web) using several different contrasting architectures? Such as MVP versus MVVM versus MVC, etc. It would be very helpful to see how they look side-by-side using real-world code instead of comparing written theory to written theory. I've often found that something can be described well in a book, but when you go to implement it, the subtleties and weaknesses of the theory become readily apparent.

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• Oracle????????(2013?11?)

  - by Steve He(???)

    Oracle Support Training Oracle ???????????,????????????,??????,?????Oracle??????????,????????????????????????????????Oracle???????????? ???? ?? ?? ???? ?? My Oracle Support ?? ???????????????My Oracle Support????????????????,?????,?????????,??My Oracle Support??,?????????,????????,?????????? 11?7?14:00 ??  ??RACCheck?????RAC?? ???1?????????,????RACCheck????????????,????RACCheck ???????????,??RACCheck ????“11.2.0.3 Upgrade Readiness Feature”? ??,???????????,???????RACCheck ??? 11?13?15:00 ?? ????? ???????,??25??????5???Q&A??,????????????,???????,???????????,????????????????????? 11?14?14:00 ?? ??????????? ????????????????Oracle???????,???????????????????????Oracle????????SR??????? 30??????????My Oracle Support???????,???????????????????,?????????????????????,?????????????????????,?????Oracle????????????????????????????????? 11?21?14:00 ?? ????Enterprise Manager 12c?????Exadata ????????1??, ???Exadata????????Enterprise Manager Cloud Control???Exadata?????, ??Storage Cells, Network Switches, Computer nodes, and Cluster Database Services, ?????????????. 11?21?15:00 ?? Oracle?????? ??????????Oracle???????,???Oracle???????? ?30?????????????,??,?????????,????,???????????? 11?28?14:00 ?? ?????? My Oracle Support ??????????????????????,??? world clock.????????,?? Support Training Community ??????????

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• ????????!Oracle Database 12c ??????????

  - by OTN-J Master

  ??????Oracle Database 12c ?????????????¦Oracle Database 12c ???????????????????????????????????c???cloud???????????????????????????????????????????????????????????????????????????????????????1????????????????????????????????????2????????????1????????????IT??????????????????????????????????????????????????????????1???????????????????????????????????????????????????Oracle Databae 12c ????????????????????????·??????????????????????????????????????????·??????????????????????????????????? Oracle Database 12c ?????? >>>>>>Oracle??????? Oracle Database 12c [????] >>>>>>OTN????? Oracle Database 12c [????] >>>>>>Oracle Database New Features Guide 12c Release1(??) [PDF?] [HTML?] ¦OTN???????????????????????????????????????????????Oracle Database 12c ?????????????????????????????????????????????????????????    1) ??????????????????     2) ??????(????)???????????    3) ???????????(??)?????????????    4) Oracle Databse 12c ????????????????????????????????????????????OTN?????????????Oracle Database 12c ??????????????????OTN?????????????????????OTN????RSS???OTN Twitter?????????????????????????????Oracle Database 12c???????????????

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• Managing scalability and availability with two servers running Apache Httpd, Apache Mina and MySQL

  - by celalo

  Hello, I am not a developer and I don't much experience with scalable server architectures. But I am in need of a highly available and scalable system for one of my projects. There is going to be two servers I am going to use for the time being. Both with 4 core CPUs and 8 GB RAM with RAID structures running CentOS 5.4. I will also have feature called "Failover IP" which enables to direct an IP address to another server within short time. The applications which will be run on the servers: There is going to be a Java application based on Apache Mina server for handling TCP requests from some hundreds of network devices where the devices are going to send request as much as one request per minute. Handling those requests, includes parsing the requests and inserting a few rows to the Database. Parsing requests before inserting data to the DB does take neglectable time. There is going to be MySQL server, as I stated above. Also there is going to be a PHP web application running on Apache Httpd Server which uses the same DB with the Java application. What I wish to have is to make use of those two servers at the most. I was imagining to have the servers identical, sharing the work load. MySQL could be a cluster maybe? And if some application fails or the whole machine goes down, the other will continue serving the requests seamlessly. Reminding that a "Failover IP" feature will be available for me to take advantage of. Also, It should be kept in mind that number of servers could increase in time, to meet the demand. What can you suggest? Which kind of tools I can make use of? Which kind of monitoring software (paid/unpaid) I have? Thanks in advance.

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• VMware Virtual vCenter and High Availability

  - by rufo

  To continue with this question: Should be Vmware vCenter server high available? According to the response there even if vCenter is down HA will continue to work. So, if my vCenter is a VM, using the express sql edition in the same VM, and that VM is hosted in the same cluster it manages (and the cluster is setup for HA): Am I correct to assume that if the host that hosts the vCenter goes down HA will vmotion the vCenter VM to another host and it will continue to function? BTW: my environment is small, two ESXi 5.0 hosts, with about 50 VMs, using iSCSI shared storaged for everything.

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• OpenVPN multiple servers on the same subnet, high availability

  - by andre

  Hey everyone. Let me start by saying that my Linux experience isn't super awesome but I can usually find my way around things easily. Over at work we have an OpenVPN setup that's been due for some improvement for a while now. The main server (tap mode) runs in our office, behind a rather slow DSL connection. The main problem is that, since I'm usually out of the office, every time I want to access something on the virtual network I have to go through that server to get anywhere else. We have two servers up on 100 Mbit connections that we use for development and production purposes, about 3 more servers in the office (one of them behind a different T1 line for VOIP) and about two dozen clients who use the network on a daily basis from various locations. We've had situations where network routing (outside of our control) would not allow people to reach our main OpenVPN server whilst the other locations were connectable. Also any time someone outside the office wants to fetch something from any of the servers (say, a 500 MB code repository), a whopping 20 KB/s download speed is just unacceptable these days (did I mention slow DSL? ok). We had to implement traffic shaping on this server since maxing out this connection was fairly trivial. I had the thought of running two (or more) OpenVPN servers in the network. These would have to have the same subnet though, as our application relies on virtual network's IP addresses for some of its core functionality. The clients would also preferably retain the same IP addresses but that's not vital. For simplicity, lets call the current server office and the second server I'm setting up, cloud. Call the server on the T1 phone. This proved to be rather complex because as soon as I connect to cloud, I cannot see office. Any routes to a server that would go through office also do not work while I'm connected to cloud (no ping, nothing) and vice-versa. There's no rules for iptables that would be blocking the traffic either. Recently I came across this article on linuxjournal but the solution they provide seems to only cover the use of two servers and somewhat outdated (can't even find much documentation, their wiki is offline). They also state that adding more servers would be a complex task. Ideally I would like to keep the existing server office running the virtual network and also run the OpenVPN daemon on the cloud and phone servers (100 Mbit and very reliable connection, respectively) so that we're on safe ground in case of a hardware failure, DSL failure, etc. So, in essence, I'm looking for a highly available OpenVPN solution (fix, patch, hack, tweak, whatever you want to call it) that will accept connections on multiple hosts (2 or more) whilst keeping the same IP address subnet regardless of the server to which you connect to. Thanks for reading and sorry for the long post, I hope it gets the point across :P

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