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• On Server Disk Storage VS SAN Storage

  - by Justin

  Hello, I am looking at buying three servers, and trying to figure out which storage solution makes the most sense in terms of performance and cost. Total budget is around: $10,000. OPTION 1: Dell servers with RAID 10 (4 Drives) each 7200RPM SAS 500GB, for a total capacity of 1TB. Each server is approx: $3000. Total storage then across all three servers is 3TB. OPTION 2: Same Dell servers with a cheap single drive no RAID for $2000 and go with a centralized SAN solution. The biggest problem is that I haven't been able to even find a SAN solution that is a reasonable price. Dell entry level storage servers are like $15,000. I am thinking just iSCSI, not fiber (too expensive). What do you guys recommend?

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• multi boot: xp + xp + xubuntu, how to?

  - by Jassano

  My laptop (with a single harddrive) currently has xp + xubuntu dual boot. I want to make that triple boot: xp + xp + xubuntu Please don't ask why, take it as given. How can I accomplish this triple boot? I tried using gparted to add a partition (worked!), used dd to clone the xp install to the new partition (worked!), edited grub (my bootloader) to list a third entry pointing to the correct device (worked!). But regardless of which of the two xp entries in grub I select I still get booted into one and the same XP. The files for the other XP show up under D: so I know they're there alright. I have edited the boot.ini on the new partition so everything looks to be in order. What do I need to do to change that and make both xp instances bootable in this scenario?

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• Why do we need URIs for XML namespaces?

  - by Patryk

  I am trying to figure out why we need URIs for XML namespaces and I cannot find a purpose for that. Can anyone brighten me a little showing their use on a concrete example? EDIT: Ok so for instance: I have this from w3schools <root xmlns:h="http://www.w3.org/TR/html4/" xmlns:f="http://www.w3schools.com/furniture"> <h:table> <h:tr> <h:td>Apples</h:td> <h:td>Bananas</h:td> </h:tr> </h:table> <f:table> <f:name>African Coffee Table</f:name> <f:width>80</f:width> <f:length>120</f:length> </f:table> </root> So what should http://www.w3schools.com/furniture hold ?

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• What is the simplest way to build your own .deb package?

  - by Calvin Fisher

  Having used Ubuntu for several years now, I've assembled a short list of scripts and packages that I always install on my computers. I would like to pack them up into a .deb to make it easier to get set up on a fresh OS installation. I'm imagining, for instance, one package that would install all of my custom BASH scripts that I've made for common tasks, and another one that would depend on other packages (like w64codecs) that I always install but forget that I need to until I go to do something and it's not there. It doesn't even have to be by-the-book; I'm not looking to deploy these publicly. I'm just looking to roll up all these tasks into one sudo dpkg --install. To quantify "simple" or "easy," I mean to say that I'm looking for the method with the fewest steps requiring the least technical knowledge and, most importantly, taking the least time.

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• Sql Server 2005 cluster - unable to rename to old server name

  - by Paul2020

  We have a sql 2005 cluster on W2K8 cluster. It is a named instance say SRV1\A. Then I built a new W2K8 (with a diff cluster service name) but the same service account. Then I installed a new sql 2005 cluster say SRV2\A. Now when I bring down the sql server resources on SRV1 and try to rename SRV2\A to SRV1\A through the cluster admin, I get the error the network name already exists. I have tried bringing an old cluster and installing a new cluster with the same name and it works. Why am I not able to rename the name? Any advice would very helpful.

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• Oracle Storage Implementation Boot Camp: ZFS Storage Appliance and Flash

  - by mseika

  Oracle Storage Implementation Boot Camp: ZFS Storage Appliance and Flash Thursday 20th September 9.30 – 16.30 This is 1-day, face-to-face training is designed for your Storage Implementation Specialists and will help them in their path to Specialisation, as they prepare for the Storage Implementations Assessments for ZFSSA. Please read carefully the notes below on the required equipment for attendees. Agenda Module 1: Product Overview Module 2: Installation and Configuration ZFS Lab 1: Installation Module 3: Clustering Module 4: File and Data Services ZFS Lab 2: Creating Projects ZFS Lab 3: Creating a Share ZFS Lab 4: Snapshots and Clones ZFS Lab 5: CLI Overview Module 5: Maintenance ZFS Lab 6: Dashboard overview Module 6: Analytics ZFS Lab 7: Analytics Prerequisites for attendees Provide basic administration support for the Solaris OS and/or Windows Desktop/Server OS Understand the fundamentals of data storage administration Understand the fundamentals of Transmission Control Protocol/Internet Protocol (TCP/IP) networking and administration Troubleshoot server and network system software and hardware IMPORTANT: Equipment that attendees will have to bring to the class The attendees must bring their own laptops and have successfully installed the Virtual Box instance and the 7000 Series Simulator. To download Virtual Box and the Simulator click here. Attendees must have the Simulator running in advance of the class. For technical support on the download/installation of the Simulator, please send email to [email protected] Please register here

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• Windows 7 side Taskbar: how to have multiple icon columns?

  - by user151426

  NOTE: I know this can be done with the taskbar on the bottom. I seek the solution for a taskbar on the side. I attached a picture of what I mean. In the screenshots, you can see that my taskbar program icons are arranged in a single column. I want to be able to have multiple columns. This would mean arranging the icons into squares and have them be placed side by side, as well as above and below one another. This can be accomplished with taskbar being on the bottom of the screen, however, I require this arrangement when I have my taskbar on the side of my screen. Currently if I expand the taskbar horizontally, it only stretches out the icons horizontally rather than turn them into small squares to make room for side by side and placement of icons. Additional icons that I add to my current taskbar are only accessible by using the horizontal scroll bar that appears at the bottom of the taskbar when there is no more space to accommodate any more icons.

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• Unable to terminate extra EC2 instances

  - by Deborah Cole

  I'm just setting up my AWS server & I'm trying to use the EC2 Console to terminate some extra instances that I generated via the AWS for Eclipse toolkit's New Project AWS Java Web Project utility. Unfortunately, every time I stop, then terminate such an instance via the EC2 Console, it automatically recreates & reactivates itself! I really don't want to be paying for 4 dev systems when I only need 1, so can somebody please clue me in? Please explain gently... I'm new to this environment.

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• Investigation: Can different combinations of components effect Dataflow performance?

  - by jamiet

  Introduction The Dataflow task is one of the core components (if not the core component) of SQL Server Integration Services (SSIS) and often the most misunderstood. This is not surprising, its an incredibly complicated beast and we’re abstracted away from that complexity via some boxes that go yellow red or green and that have some lines drawn between them. Example dataflow In this blog post I intend to look under that facade and get into some of the nuts and bolts of the Dataflow Task by investigating how the decisions we make when building our packages can affect performance. I will do this by comparing the performance of three dataflows that all have the same input, all produce the same output, but which all operate slightly differently by way of having different transformation components. I also want to use this blog post to challenge a common held opinion that I see perpetuated over and over again on the SSIS forum. That is, that people assume adding components to a dataflow will be detrimental to overall performance. Its not surprising that people think this –it is intuitive to think that more components means more work- however this is not a view that I share. I have always been of the opinion that there are many factors affecting dataflow duration and the number of components is actually one of the less important ones; having said that I have never proven that assertion and that is one reason for this investigation. I have actually seen evidence that some people think dataflow duration is simply a function of number of rows and number of components. I’ll happily call that one out as a myth even without any investigation!  The Setup I have a 2GB datafile which is a list of 4731904 (~4.7million) customer records with various attributes against them and it contains 2 columns that I am going to use for categorisation: [YearlyIncome] [BirthDate] The data file is a SSIS raw format file which I chose to use because it is the quickest way of getting data into a dataflow and given that I am testing the transformations, not the source or destination adapters, I want to minimise external influences as much as possible. In the test I will split the customers according to month of birth (12 of those) and whether or not their yearly income is above or below 50000 (2 of those); in other words I will be splitting them into 24 discrete categories and in order to do it I shall be using different combinations of SSIS’ Conditional Split and Derived Column transformation components. The 24 datapaths that occur will each input to a rowcount component, again because this is the least resource intensive means of terminating a datapath. The test is being carried out on a Dell XPS Studio laptop with a quad core (8 logical Procs) Intel Core i7 at 1.73GHz and Samsung SSD hard drive. Its running SQL Server 2008 R2 on Windows 7. The Variables Here are the three combinations of components that I am going to test:     One Conditional Split - A single Conditional Split component CSPL Split by Month of Birth and income category that will use expressions on [YearlyIncome] & [BirthDate] to send each row to one of 24 outputs. This next screenshot displays the expression logic in use: Derived Column & Conditional Split - A Derived Column component DER Income Category that adds a new column [IncomeCategory] which will contain one of two possible text values {“LessThan50000”,”GreaterThan50000”} and uses [YearlyIncome] to determine which value each row should get. A Conditional Split component CSPL Split by Month of Birth and Income Category then uses that new column in conjunction with [BirthDate] to determine which of the same 24 outputs to send each row to. Put more simply, I am separating the Conditional Split of #1 into a Derived Column and a Conditional Split. The next screenshots display the expression logic in use: DER Income Category         CSPL Split by Month of Birth and Income Category       Three Conditional Splits - A Conditional Split component that produces two outputs based on [YearlyIncome], one for each Income Category. Each of those outputs will go to a further Conditional Split that splits the input into 12 outputs, one for each month of birth (identical logic in each). In this case then I am separating the single Conditional Split of #1 into three Conditional Split components. The next screenshots display the expression logic in use: CSPL Split by Income Category         CSPL Split by Month of Birth 1& 2       Each of these combinations will provide an input to one of the 24 rowcount components, just the same as before. For illustration here is a screenshot of the dataflow containing three Conditional Split components: As you can these dataflows have a fair bit of work to do and remember that they’re doing that work for 4.7million rows. I will execute each dataflow 10 times and use the average for comparison. I foresee three possible outcomes: The dataflow containing just one Conditional Split (i.e. #1) will be quicker There is no significant difference between any of them One of the two dataflows containing multiple transformation components will be quicker Regardless of which of those outcomes come to pass we will have learnt something and that makes this an interesting test to carry out. Note that I will be executing the dataflows using dtexec.exe rather than hitting F5 within BIDS. The Results and Analysis The table below shows all of the executions, 10 for each dataflow. It also shows the average for each along with a standard deviation. All durations are in seconds. I’m pasting a screenshot because I frankly can’t be bothered with the faffing about needed to make a presentable HTML table. It is plain to see from the average that the dataflow containing three conditional splits is significantly faster, the other two taking 43% and 52% longer respectively. This seems strange though, right? Why does the dataflow containing the most components outperform the other two by such a big margin? The answer is actually quite logical when you put some thought into it and I’ll explain that below. Before progressing, a side note. The standard deviation for the “Three Conditional Splits” dataflow is orders of magnitude smaller – indicating that performance for this dataflow can be predicted with much greater confidence too. The Explanation I refer you to the screenshot above that shows how CSPL Split by Month of Birth and salary category in the first dataflow is setup. Observe that there is a case for each combination of Month Of Date and Income Category – 24 in total. These expressions get evaluated in the order that they appear and hence if we assume that Month of Date and Income Category are uniformly distributed in the dataset we can deduce that the expected number of expression evaluations for each row is 12.5 i.e. 1 (the minimum) + 24 (the maximum) divided by 2 = 12.5. Now take a look at the screenshots for the second dataflow. We are doing one expression evaluation in DER Income Category and we have the same 24 cases in CSPL Split by Month of Birth and Income Category as we had before, only the expression differs slightly. In this case then we have 1 + 12.5 = 13.5 expected evaluations for each row – that would account for the slightly longer average execution time for this dataflow. Now onto the third dataflow, the quick one. CSPL Split by Income Category does a maximum of 2 expression evaluations thus the expected number of evaluations per row is 1.5. CSPL Split by Month of Birth 1 & CSPL Split by Month of Birth 2 both have less work to do than the previous Conditional Split components because they only have 12 cases to test for thus the expected number of expression evaluations is 6.5 There are two of them so total expected number of expression evaluations for this dataflow is 6.5 + 6.5 + 1.5 = 14.5. 14.5 is still more than 12.5 & 13.5 though so why is the third dataflow so much quicker? Simple, the conditional expressions in the first two dataflows have two boolean predicates to evaluate – one for Income Category and one for Month of Birth; the expressions in the Conditional Split in the third dataflow however only have one predicate thus they are doing a lot less work. To sum up, the difference in execution times can be attributed to the difference between: MONTH(BirthDate) == 1 && YearlyIncome <= 50000 and MONTH(BirthDate) == 1 In the first two dataflows YearlyIncome <= 50000 gets evaluated an average of 12.5 times for every row whereas in the third dataflow it is evaluated once and once only. Multiply those 11.5 extra operations by 4.7million rows and you get a significant amount of extra CPU cycles – that’s where our duration difference comes from. The Wrap-up The obvious point here is that adding new components to a dataflow isn’t necessarily going to make it go any slower, moreover you may be able to achieve significant improvements by splitting logic over multiple components rather than one. Performance tuning is all about reducing the amount of work that needs to be done and that doesn’t necessarily mean use less components, indeed sometimes you may be able to reduce workload in ways that aren’t immediately obvious as I think I have proven here. Of course there are many variables in play here and your mileage will most definitely vary. I encourage you to download the package and see if you get similar results – let me know in the comments. The package contains all three dataflows plus a fourth dataflow that will create the 2GB raw file for you (you will also need the [AdventureWorksDW2008] sample database from which to source the data); simply disable all dataflows except the one you want to test before executing the package and remember, execute using dtexec, not within BIDS. If you want to explore dataflow performance tuning in more detail then here are some links you might want to check out: Inequality joins, Asynchronous transformations and Lookups Destination Adapter Comparison Don’t turn the dataflow into a cursor SSIS Dataflow – Designing for performance (webinar) Any comments? Let me know! @Jamiet

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• Stuck on Checking battery state at startup in Ubuntu, have splash screen no startup

  - by jeffhsu3

  I am running Ubuntu 10.04 LTS. When I boot up the computer it goes to the splash but there is no login screen, just the purple background and the mouse cursor. "Checking battery state" is the last line that does not have an "[OK]". When I press Ctr-alt-shift-F1 I can login and sudo stop gdm and startx. However this makes it so that the applets don't show. Error: "The panel encountered a problem while loading "OAFIID:GNOME_notificationAreaApplet" and does it for every single applet. Everything else works fine though. I get a EHCI: BIOS handoff failed twice in the dmesg as well. The laptop has intel mobile integrated graphics. UPDATE: Now my desktop has the exact same problem. Things that I have tried: Changing to GRUB_CMDLINE_LINUX_DEFAULT="i915.modeset=1 acpi=off"

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• Regular Expressions Quick Reference

  - by Jan Goyvaerts

  The Regular-Expressions.info website has a new quick reference to regular expressions that lists all of the regex syntax in one single table along with a link to the tutorial section that explains the syntax. The quick reference is ordered by syntax whereas the full reference tables are ordered by feature. There are multiple entries for some of the syntax as different regex flavors may use the same syntax for different features. Use the quick reference if you’ve seen some syntax in somebody else’s regex and you have no idea what feature that syntax is for. Use the full reference tables if you already know the feature you want but forgot which syntax to use. Of course, an even quicker reference is to paste your regex into RegexBuddy, select the application you’re working with, and click on the part of the regex you don’t understand. RegexBuddy then selects the corresponding node in its regex tree which summarizes exactly what the syntax you clicked on does in your regex. If you need more information, press F1 or click the Explain Token button to open the relevant page in the regex tutorial in RegexBuddy’s help file.

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• Tuning Red Gate: #5 of Multiple

  - by Grant Fritchey

  In the Tuning Red Gate series I've shown you how to look at a current load on the system and how to drill down to look at historical analysis of the system. I've also shown how you can see the top queries and other information from the current status of the system. I have one more thing I can show you before we need to start fixing things and showing how that affects the data collected, historical moments in time. For example, back in Post #3 I was looking at some spikes in some of the monitored resources that were taking place a couple of weeks back in time. Once I identify a moment in time that I'm interested in, I can go back to the first page of Monitor, Global Overview, and click on the icon: From this you can select the date and time you're interested in. For example, I saw some serious CPU queues last week: This then rolls back the time for all the information that's available to the Global Overview and the drill down to the server and the SQL Server instance there. This then allows me to look at the Top Queries running at this point, sort them by CPU and identify what was potentially the query that was causing the problem right when I saw the CPU queuing This ability to correlate a moment in time with the information available to you in the Analysis window makes for an excellent tool to investigate your systems going backwards in time. It really makes a huge difference in your knowledge. It's not enough to know that something happened at a particular time. You need to know what it was that was occurring. Remember, the key to tuning your systems is having enough knowledge about them. I'll post more on Tuning Red Gate as soon as I can get some queries rewritten. I'm working on that.

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• DLP projector has odd colors

  - by torbengb

  At my place of work, we have several different video projectors, but they all use DLP technology, and the colors are wrong: for instance, yellow looks more like green, and all other colors are similarly distorted. Any kind of presentation or collaborative work is hindered by these wrong colors. On the laptop screen, the colors are fine but on the projector (hooked up via normal short VGA cable, and showing the same image at the same time), the colors look wrong. This is not about one specific projector or one specific laptop; it seems that any combination of projector + laptop has the exact same problem. Someone said that DLP is poor technology, but that's not true. I'm using a DLP projector at home (regular PC connected via HDMI) and the colors are excellent. Still, there's some kind of curse on the machinery at work. How can we get decent colors?

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• Add a new folder to each subfolder

  - by nomi49

  I have main a folder say E:\donuts and there are hundreds of folders inside it. e.g. E:\donuts\yellow\ E:\donuts\green\ ... E:\donuts\blue\ I want to create a new folder in each subfolder simply using some DOS command. Something like this. E:\donuts\yellow\big E:\donuts\green\big and so on. How can I achieve this? Also, would to be possible move the content of each subfolder into the corresponding big folder? For instance all the files and folders in E:\donuts\yellow\ should move to E:\donuts\yellow\big and so on.

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• Don&rsquo;t use MySQL .net connector, here is why ?

  - by Anirudha

  Originally posted on: http://geekswithblogs.net/anirugu/archive/2013/11/04/donrsquot-use-mysql-.net-connector-here-is-why.aspxIf you use .net mysql connector and all project new or old use different different version of Mysql .net connector then you need to upgrade it to latest (if you don’t use copy local=true for bin assembly). This is not the single problem happen to me.   In my case I use .net connector 6.7.4.0 and let’s see what happen to me after I start using it. 6.7.4.0 install register the mysql module in machine.config and it’s broke every software you haven’t deployed with Mysql.   Suppose for example I just create a website ( in webmatrix 3) put my index.cshtml and now see what it preview for me. This means I need to add the mysql.Web even I don’t use any kind of database. I need to do every asp.net mvc project no matter they use mysql. it’s problematic when we use older .net  mysql connector in some of my project.   If you have trouble like this simply use nuget and say Bye bye to this trouble.

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• Why does Amazon release private keys instead of public keys?

  - by S37H

  My brain is wrapped around the axle on public and private keys. When you create a cloud server (instance) on Amazon's EC2 service and then want to connect to it via SSH, Amazon requires you to download private a key to make the connection. Doesn't the idea behind public/private key suggest that Amazon should be require you to download a public one? Further, if I set up an SFTP server for a customer to use, should I be installing their key on the server or giving them a key from the server? In either case, should it be a public or private key?

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• How to negotiate with software vendors who do not follow HL7 standards

  - by Peter Turner

  Take, for instance the "", I'd hope that anyone who has spent any time in dealing with HL7 messages knows that the "" signifies that something should be deleted. "" is not an empty string, it's not a filler etc... But occasionally, one may meet a vendor who persists in sending "" instead of just sending nothing at all. Since, I work for a small business and have an extremely flexible HL7 interface, I can ignore ""'s in received messages. But these things are adding up. Some vendors like to send custom formatted fields with psuedo-components that they leave others to interpret themselves. Some vendors send all their information in note segments and assume you're going to only show users the information they send in a monospace font. Some vendors even have the audacity to send Carriage Return Line Feeds at the end of each line of a file interface. Some vendors absolutely refuse to send decimal numbers and in-so-doing refuse to send any numbers. So, with all this crippling humanity against the simple plastic software man, how does one bend without breaking*? Or better yet, how does one fight back and still make money? *my answer is usually to create an interface for the interface and keep the HL7 processing pure, but I don't think this is the best solution

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• Ubuntu whois package and request limits

  - by Sam Hammamy

  I'm writing a django app with a form that accepts an IP and does a whois lookup on the discovered domain names. I've found the Ubuntu package whois which I plan to call from a python subprocess, and read the stdout into a StringIO, then parse for things like Registrar, Name Servers, etc. My question is, it seems that there are many paid whois services, which means that there must be a reason why people don't just use this Ubuntu package. I'm wondering if there's a request limit on the number of requests from a single IP to the package's whois server? I will probably be making 250 domain lookups per IP or maybe more. Also, I've found that some domains aren't searchable: qmul.ac.uk is searchable kat.ph is not searchable ahram.org.eg is not searchable Any particular reason for that?

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• Rackspace Cloud Servers in Europe?

  - by mit

  We have setup a cloud virtual server at rackspace in the US, but we use it from Europe. I found out I am not quite happy with the response time. Of course I knew that there would be some latency. But I am not sure if it is the overseas latency (ping is 120ms) or also the minimal resources. It is the smallest machine, 256 MB, 10 GB, running a Mediawiki on Ubuntu 10.04 64 bit. The Instance lives in the rackspace ORD1 datacenter. As soon as they have opened their new facilities in the UK we plan moving the incstance there. But we are planing more machines already. The pricing is quite attractive. I don't really want to do some measuring and benchmarking and this stuff, so I am asking just for your opinions and it would be nice to hear what you can tell from your experience. Maybe someone who uses such small instances in the US. And what can we really expect if we upgrade to more resources.

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• Getting Started with Puppet on Oracle Solaris 11

  - by Glynn Foster

  One of the exciting enhancements with Oracle Solaris 11.2 has been the introduction of Puppet. While upstream Puppet did have some rudimentary support for Oracle Solaris 11, Drew Fisher and Ginnie Wray worked tirelessly to add enhance the Oracle Solaris Puppet offering. We've talked to customers over the past few years and asked them what their problems were and what technologies they were using, particularly for configuration management. Puppet came up time and time again, and it made a huge amount of sense bringing it as a 1st class citizen in the Oracle Solaris platform. So what is Puppet, and why is it useful? To quote from PuppetLabs, the guys who are responsible for creating Puppet: Puppet is a declarative, model-based approach to IT automation, helping you manage infrastructure throughout its lifecycle, from provisioning and configuration to orchestration and reporting. Using Puppet, you can easily automate repetitive tasks, quickly deploy critical applications, and proactively manage change, scaling from 10s of servers to 1000s, on-premise or in the cloud. What's more, with Puppet support for Oracle Solaris, administrators can now manage a completely heterogeneous data center from a single or series of Puppet masters. Better still, it's an excellent tool when combined with our new compliance framework to ensure you're meeting your compliance regulations. We're not stopping there of course, and we'll enhance our offerings over time, and work with PuppetLabs to get some of this support upstream (or into the Puppet Forge). So if you've heard some of the buzz around Puppet and never quite got started, and have some Oracle Solaris real estate that you'd love to manage, check out the Getting Started with Puppet on Oracle Solaris 11 guide.

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• Oracle Installation issue on Oracle Linux 6.4

  - by Pradhyoth

  I am trying to install Oracle 11g(11.2.0.1.0) on Oracle Linux 6.4(Remote Server). I get the following error(s) when Database Configuration Assistant is running ORA-01092: ORACLE instance terminated Disconnection forced ORA-48210: Relation Not Found Can someone help me regarding this errors, I cant seem to find what exactly that I have to do to solve this issue. I have done the same install on Oracle Linux 5.7 but never faced this issue before. The only problem while installing(which happens on 5.7 too) is that the required packages fail, but upon checking, it seems much higher versions are already installed. Also I cant do a yum update because the system seems to have connectivity issues with public-yum.oracle.com as I cant ping it(even though the IP Address gets resolved)

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• Thoughts on my new template language?

  - by Ralph

  Let's start with an example: using "html5" using "extratags" html { head { title "Ordering Notice" jsinclude "jquery.js" } body { h1 "Ordering Notice" p "Dear @name," p "Thanks for placing your order with @company. It's scheduled to ship on {@ship_date|dateformat}." p "Here are the items you've ordered:" table { tr { th "name" th "price" } for(@item in @item_list) { tr { td @item.name td @item.price } } } if(@ordered_warranty) p "Your warranty information will be included in the packaging." p(class="footer") { "Sincerely," br @company } } } The "using" keyword indicates which tags to use. "html5" might include all the html5 standard tags, but your tags names wouldn't have to be based on their HTML counter-parts at all if you didn't want to. The "extratags" library for example might add an extra tag, called "jsinclude" which gets replaced with something like <script type="text/javascript" src="@content"></script> Tags can be optionally be followed by an opening brace. They will automatically be closed as the closing brace. If no brace is used, they will be closed after taking on element. Variables are prefixed with the @ symbol. They may be used inside double-quoted strings. I think I'll use single-quotes to indicate "no variable substitution" like PHP does. Filter functions can be applied to variables like @variable|filter. Arguments can be passed to the filter @variable|filter:@arg1,arg2="y" Attributes can be passed to tags by including them in (), like p(class="classname"). Some questions: Which symbol should I use to prefix variables? @ (like Razor), $ (like PHP), or something else? Should the @ symbol be necessary in "for" and "if" statements? It's kind of implied that those are variables. Tags and controls (like if,for) presently have the exact same syntax. Should I do something to differentiate the two? If so, what? Do you like the attribute syntax? (round brackets) I'll add more questions in a few minutes, once I get some feedback.

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• Tools for retrieving and modifying multi-value attributes in Microsoft ActiveDirectory

  - by Justin

  Most attributes in MSAD are single-valued and pose no problem. I am familiar with the dsquery user -samid jdoe | dsmod -webpg "http://some.url/" method. However, some attributes are multi-valued, such as telephone number and webpage. These values can be managed through the Active Directory Users & Computers Microsoft Console (dsa.msc) via the dialogue shown by clicking on the "Other..." button, but I'd really rather script the modifications. It seems to me that dsmod & dsget do not support multi-value retrieval and editing; only the first value of the set seems to be accesible. Am I correct? If I am not correct, I would appreciate a syntax example. If I am correct, would you please recommend an alternative scriptable tool that can handle multi-value attributes? The more "official and supported" the tool, the better.

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• GPLv2 - Multiple AI chess engines to bypass GPL

  - by Dogbert

  I have gone through a number of GPL-related questions, the most recent being this one: http://stackoverflow.com/questions/3248823/legal-question-about-the-gpl-license-net-dlls/3249001#3249001 I'm trying to see how this would work, so bear with me. I have a simple GUI interface for a game of Chess. It essentially can send/receive commands to/from an external chess engine (ie: Tong, Fruit, etc). The application/GUI is similar in nature to XBoard ( http://www.gnu.org/software/xboard/ ), but was independently designed. After going through a number of threads on this topic, it seems that the FSF considers dynamically linking against a GPLv2 library as a derivative work, and that by doing so, the GPLv2 extends to my proprietary code, and I must release the source to my entire project. Other legal precedents indicate the opposite, and that dynamic linking doesn't cause the "viral" effect of the GPL to propagate to my proprietary code. Since there is no official consensus that can give a "hard-and-fast" answer to the dynamic linking question, would this be an acceptable alternative: I build my chess GUI so that it sends/receives the chess engine AI logic as text commands from an external interface library that I write The interface library I wrote itself is then released under the GPL The interface library is only used to communicate via a generic text pipe to external command-line chess engines The chess engine itself would be built as a command-line utility rather than as a library of any sort, and just sends strings in the Universal Chess Interface of Chess Engine Communication Protocol ( http://en.wikipedia.org/wiki/Chess_Engine_Communication_Protocol ) format. The one "gotcha" is that the interface library should not be specific to one single GPL'ed chess engine, otherwise the entire GUI would be "entirely dependent" on it. So, I just make my interface library so that it is able to connect to any command-line chess engine that uses a specific format, rather than just one unique engine. I could then include pre-built command-line-app versions of any of the chess engines I'm using. Would that sort of approach allow me to do the following: NOT release the source for my UI Release the source of the interface library I built (if necessary) Use one or more chess engines and bundle them as external command-line utilities that ship with a binary version of my UI Thank you.

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• preparing to migrate MOSS 2007 SP1 content into new server with MOSS 2007 SP2 with the same server n

  - by Albert Widjaja

  To All Experts here, I'd like to perform a MOSS server content migration from the existing single instance server (SQL Server 2008, Windows Server 2008, SharePoint 2007 SP1) all in one and by maintaining the server name only, here's what I had in my migration plan document outline: I have created the new Windows Server 2008 R2 + SQL Server 2008 SP1 and MOSS 2007 SP2 after that: Backup MOSS_ContentDB from SQL Server 2008 SSMS (does this enough to cover all top level sites and its content in the library and doc. repository ?) Backup all top level sites from CA site using the CA Sites backup and restore tools. turn off the old MOSSDEV01 (current server) rename the existing server (TempServ01) into MOSSDEV01 (so that the user bookmark and other link inside MOSS site still working) perform restore of the DB restore the site collection and its content from the backup is that the correct way to do it ? I haven't execute the server configuration wizard to create the same port number of the SSP, CA and the SQL Server DB yet. Any idea and suggestion would be greatly appreciated Thanks.

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