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  • Storing images in file system and returning URLs or virtually resizing and returning byte arrays?

    - by ismaelf
    I need to create a REST web service to manage user submitted images and displaying them all in a website. There are multiple websites that are going to use this service to manage and display images. The requirements are to have 5 pre-defined image sizes available. The 2 options I see are the following: The web service will create the 5 images, store them in the file system and and store the URL's in the database when the user submits the image. When the image is requested, the web service will return an array of URLs. I see this option to be a little hard on the hard drive. The estimates are 10,000 users per site, and lets say, 100 sites. The heavy processing will be done when the user submits the image and each image is going to be pulled from the File System. The web service will store just the image that the user submits in the file system and it's URL in the database. When the user request images, the web service will get the info from the DB, load the image on memory, create its 5 instances and return an object with 5 image arrays (I will probably cache the arrays). This option is harder on the processor and memory. The heavy processing will be done when the images get requested. A plus I see for option 2 is that it will give me the option to rewrite the URL of the image and make them site dependent (prettier) than having a image repository for all websites. But this is not a big deal. What do you think of these options? Do you have any other suggestions?

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  • ESXi disaster recovery plan

    - by Marlin
    I have a Vmware infrastructure where I am using the free version of Esxi 5 . I cannot as a result use vmotion and the other cool features that come with a paid ESXI. I am using snapshots for the backups but they are stored on local hard drive. I need a better backup scenario where I can recover in the event of a harddrive failure. I tried openfiler but could not get it right. What backup method can I try given my situation?

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  • Internationalization messages based in views or in model entities

    - by SJuan76
    I have a small webapp in java and I am adding the internationalization support, replacing texts with labels that are defined in dictionary files. While some texts are obviously unique to each view (v.g. the html title), other refer to concepts from the model (v.g. a ticket, the location or status of such ticket, etc.) As usual, some terms will appear many times in different locations (vg, in both the edition page and in the search page and in the listings I have a "ticketLocation" label). My question is: can I organize the labels around the model concepts (so I have a ticket.location label and I use it everywhere such field is labeled) or should I make a different label for each (so form.ticketLocation and filter.ticketLocation and list.ticketLocation). I would go for the first option; I have searched for tips and the only thing that I see that could hinder me is due to the length of the string disrupting the design, and even for that I would prefer having to add a ticket.locationShort for places where there is not much space. What is your opinion/tips/experience?

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  • SharePoint 2010 Web Parts in Action

    This article is taken from the book SharePoint 2010 Web Parts in Action. The author discusses export and import features of Web Parts and how to disable the export of Web Parts when confidentiality is a concern.

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  • Model Based Apps and Frameworks

    Having been involved (mostly as a user or observer) with several recent applications and frameworks, Ive come to the conclusion that building your app/framework on an internal model is generally the best way to go.  In this post Ill explain what I mean by on an internal model and later describe the benefits I have seen, realized, been told about by others and still others that Ive only imagined (but are still possible).  I plan on writing a few blog posts along these lines to explore what...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • How do you do the offsite hard drive backups?

    - by kentchen
    I have been doing hard drive backups for a while, which I believe a lot of you guys do as well, but am having trouble figuring out a better way storing them offsite. I am wondering how you guys out there do that. Any policy or tips & tricks when it comes to offsite store your backups, mainly hard drives not tapes. Thanks in advance. [update] Thanks for mentioning the online backup. We are actually in the middle of this process. And I 100% agree that it's the ultimate way to go. However, considering the cost, sometimes it may not be the option, as it's a quite expensive option if you also consider the application level. I guess online backup can be a very good one in the separate topic. :)

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  • Web Development Resources - A Guide on How to Sell Online

    You need to actualize things. First, you need to look at the budget and choose the right web host for you. This web host is an important resource for you to be able to have a site that will cater your system storage and other things such as uploading and storage keeping. This host site will be very helpful in getting the right steps for the web design you will make as well the complexity of the matter.

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  • What Are The Web Page Musts Yours Should Have

    If your home based business does not have a web page, well, you are definitely missing a lot. In today';s world, a home business without a web page is like a business without an address or a phone num... [Author: Kaye Z. Marks - Web Design and Development - April 29, 2010]

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  • Securing a Cloud-Based Data Center

    - by Orgad Kimchi
    No doubt, with all the media reports about stolen databases and private information, a major concern when committing to a public or private cloud must be preventing unauthorized access of data and applications. In this article, we discuss the security features of Oracle Solaris 11 that provide a bullet-proof cloud environment. As an example, we show how the Oracle Solaris Remote Lab implementation utilizes these features to provide a high level of security for its users. Note: This is the second article in a series on cloud building with Oracle Solaris 11. See Part 1 here.  When we build a cloud, the following aspects related to the security of the data and applications in the cloud become a concern: • Sensitive data must be protected from unauthorized access while residing on storage devices, during transmission between servers and clients, and when it is used by applications. • When a project is completed, all copies of sensitive data must be securely deleted and the original data must be kept permanently secure. • Communications between users and the cloud must be protected to prevent exposure of sensitive information from “man in a middle attacks.” • Limiting the operating system’s exposure protects against malicious attacks and penetration by unauthorized users or automated “bots” and “rootkits” designed to gain privileged access. • Strong authentication and authorization procedures further protect the operating system from tampering. • Denial of Service attacks, whether they are started intentionally by hackers or accidentally by other cloud users, must be quickly detected and deflected, and the service must be restored. In addition to the security features in the operating system, deep auditing provides a trail of actions that can identify violations,issues, and attempts to penetrate the security of the operating system. Combined, these threats and risks reinforce the need for enterprise-grade security solutions that are specifically designed to protect cloud environments. With Oracle Solaris 11, the security of any cloud is ensured. This article explains how.

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  • Web Application Development - 4 Steps Process

    With the growth of internet, web marketing and web business are taking their shapes. Number of investors and marketers are forging ahead in devising new and innovative techniques and web applications that can facilitate its process and promotions. And if you wonder how internet have developed the mode of communication.

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  • Best Linux Distro for web services (Nginx & node.js) on laptop: Compaq 6710b?

    - by tomByrer
    I haven't used Linux in 5+ years, aside from d/l occasional system recovery CDs off DistroWatch, so I don't know the current landscape. Related postings on this forum are several years old & may not relate to my hardware (Compaq 6710b laptop, Core2Duo Centrino). Requirements: Use the Compaq 6710b laptop's WiFi out of the box enough frequently updated pre-made packages for web hosting & development (Nginx & node.js are biggest concerns, everyone has Apache & PHP, & I'm not crazy about building from source) prefer be easy enough to use, but outside help available (so a small user-base distro is only OK if the community is active & a major disto's packages are compatable) configuration easy to transfer to outside web hosts. You have actually installed/used recommended disto (don't have to be expert) TIA!

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  • Why You Should Choose A Web Development Company?

    Web development outsourcing has become the trend from last few years. In the past people were skeptical in sending work to other countries but in the present time this trend has become a boon. Web service outsourcing has become the important cost saving factor for the small sized businesses. But it also includes some risks so a proper choice of Web Service Company will maintain the balance between reducing the cost and minimizing the risks involved. India, China, Russia and Philippines have gained so much popularity for the web development services and SEO services.

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  • How to implement string matching based on a pattern

    - by Vincent Rischmann
    I was asked to build a tool that can identify if a string match a pattern. Example: {1:20} stuff t(x) {a,b,c} would match: 1 stuff tx a 20 stuff t c It is a sort of regex but with a different syntax Parentheses indicate an optional value {1:20} is a interval; I will have to check if the token is a number and if it is between 1 and 20 {a,b,c} is just an enumeration; it can be either a or b or c Right now I implemented this with a regex, and the interval stuff was a pain to do. On my own time I tried implementing some kind of matcher by hand, but it turns out it's not that easy to do. By experimenting I ended up with a function that generates a state table from the pattern and a state machine. It worked well until I tried to implement the optional value, and I got stuck and how to generate the state table. After that I searched how I could do this, and that led me to stuff like LL parser, LALR parser, recursive-descent parser, context-free grammars, etc. I never studied any of this so it's hard to know what is relevant here, but I think this is what I need: A grammar A parser which generates states from the grammar and a pattern A state machine to see if a string match the states So my first question is: Is this right ? And second question, what do you recommend I read/study to be able to implement this ?

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  • Checking a record is due based on the 'occuring' field

    - by andy
    I have records that have dates against them and an occurring field that contains none,yearly and monthly id status note date last_updated occurring 1 open --- 01/01/2011 01/02/2010 yearly 2 open --- 05/05/2011 03/05/2011 monthly 3 open --- 06/06/2011 05/06/2011 none Now I need to be able to check if a record is due (the date set has passed) which works perfect if occurring is set to none but I'm unsure of how to approach it when it's set to yearly or monthly (IE: This day in the year/month has passed) So with the above records, if I had a method on the record called due? providing the status is 'open' it needs to return true every year when it's passed that date if it's not been updated within the year yet. I apologise if this is confusing but it's melting my brain just trying to think of it, let alone put it into words.

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  • Binding Data to Web Performance Tests

    Web Performance Tests provide a simple means of ensuring correct and performant responses are being returned from your web application. Testing a wide variety of inputs can be tedious without a way to separate test recording and input selection. Data binding provides a convenient and simple way to try an unlimited number of different inputs as part of your web performance tests using Visual Studio 2010.

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  • Best server sync software/methods [closed]

    - by Meep3D
    I have a test server at home and a test server at the office. I'd like to somehow sync multiple folders in both directions automatically so I can work at home and to also provide an offsite backup. I've tried Live Sync (Microsofts own product) but it chokes on large amounts of files and seems a bit rudimentary. Dropbox is also a bit small and does not adapt to our filesystem setup. I have seen a few online backup services but none seemed geared to multiple computers using the same account. I don't mind paying a monthly fee provided the service is good. Suggestions would be greatfully appreciated!

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  • Hyper-v back-up

    - by Ddave23
    We are trying to decide a good backup strategy for our new Hyper-V setup. We have 3 VMs on Windows 2008 R2 Hyper-V host. We installed Symantec BackupExec 2010 on the host and have the Hyper-V Agent installed. We would like to perform a full backup at night to tape, and an incremental twice a day to a daily tape. Our environment needs constant protection for our database (Microsoft Access). Any thoughts? Should I be looking at different software?

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