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  • Advice for an EC2 Architecture and Deployment Strategy

    - by Mark
    My company is currently migrating several websites and PHP web applications (standard LAMP stack) from three in-house servers to Amazon EC2. Because we had only three servers, we clustered several low-traffic websites with perhaps one high-traffic web application, and served them from the same server. The server admin has pretty much copied the previous architecture wholesale onto the EC2 instances, simply upping the instance size to account for the highest traffic client that occupies that particular instance. This architecture might be okay if it wasn't for deployment. Any time one of these sites/apps changes, it means redeploying the entire instance, along with the 30 sites/apps it hosts, instead of just updating one. How can we architect our cloud in a more modular fashion? Should each app get its own appropriately-sized instance? What is the best strategy for deployment in this type of situation?

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  • ESXI 4.0 Slow response in opening anything accross the network on a Virtual Server running Win2008

    - by user40944
    Hi I recently installed a HP ML350G6 Server with Windows Small Business Server 200864bit, Exchange 2007. The server was running fantastically and we transferred all user data onto the new server and no problems for 2 weeks! We then installed SQL2008 and transferred the accounts package onto the server and this is where the problems started. Users are now complaining to open a work document can take 2 minutes and the same with regard to anything else. The server itself seems fine, the virtual server seems fine! No disk performance problems (doesn't go above 50% unless i really copy lots of things), no memory, (12Gb only using 7Gb) cpu (usage is low average about 15%) etc on both the VM and in Windows Task manager. I have made sure disk caching is enabled on the raid controller (which made no difference). Network cards are running 1Gb and plugged into HP GB switch. Please help!

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  • Converting an Small Business Server to a Workstation

    - by noway
    I am planning to buy a Dell PowerEdge T110 Server and convert it to workstation similar to Dell PowerEdge Precision T1700. The reasoning behind is the cost, if I do it by myself, it costs two times cheaper. However, I wonder what might go wrong in this way? The things I have thought of are: Client OSes are not officially supported. There might be some driver problems. The chasis is designed to be a server case, so there are not many useful inputs in the front side of the case. The server boots slower than usual PCs. What might else be a problem?

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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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  • Configurarion of Alert on Windows Server 2003

    - by Ferre06
    I'm trying to configure an alert on low space on disk in Windows Server 2003, I already followed this step by step tutorial of microsoft. I try to execute a bat file created by me, located on the home folder of the user I'm using. I seted to trigger when the free space is below 6 GB when the disk have lower free space than 6 GB, the "Sample data interval" is the default (5 seconds). The problem is that the alert isnt triggered. And another thing, the user that is seted for the alert isnt the root user, but It have administration privileges. Thanks in advance

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  • Pull/push student assignment files from computer lab computers (Windows 7)

    - by mkstreet
    I have a computer lab with about 35 PC's all running Windows 7. The students do their work and save it on the D-drive in a particular folder such as a folder with the same name as the computer's name (e.g. LABPC001). I'd like a centralized way to pull all these folders in to the teacher's computer in the lab to check the assignments. It would be best if this didn't involve using an external website (e.g. Dropbox). I would also like to be able to distribute (send) files to the students in these same folders. I've seen software applications that do this but they cost about US$1000 which is far beyond our means. Suggestions for free, or almost free, best ways to set this up?

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  • how to publish c# project online

    - by hero
    i have done a simple c# website that have a lot of pics (3000+). i want to publish the full website online. all i know is that i have to first buy a domain name, and then buy some space on a webhosting server. could anybody guide me? how much does a domain name usually cost? and also how should i upload the website on a hosting server? i mean should i upload the full code?

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  • Should I bother upgrading my Opteron 270 Server?

    - by MousePad
    I have an Opteron Server machine (in a large workstation class case) running on the Tyan 2895 motherboard. It's a dual CPU socket board, but I only have one 270 in there. I have 4GB of RAM, but less than 3GB is addressable, even in 64bit mode, due to the way the board is designed. Is it worth spending a few hundred on an additional CPU and maybe some more RAM? The other problem is that one of the two SATA ports on the board had its wire socket break off. So only one drive can be run as of now. I could have it repaired, but at what cost? Add in the fact that the power supply is gunked up with dust and it's a bit of a nightmare. I actually work about it getting too hot. Seems that for the money I could buy a new server rack from Dell, but it also seems a shame to waste an otherwise working, and for my needs still very fast machine.

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  • migration of physical server to a virtual solution, what i have to do?

    - by bibarse
    Hello I'm new in this forum, so i would like that you forgive me for my blissfully and my low English level. I'm a trainee in company one month ago, and my mission is to migrate 3 physicals servers to a virtualization technology. The company edit softwares for E-learning so there are lots of data like videos, flash and compressed (zip). This is some inventory of the servers: OS: Debian, 2 redhat, apache, php/mysql, sendMail/Dovecot, webmin with virtualmin template to create dynamically the web sites because there is no sysadmin ... The future provider will be responsible of to secure, update and create the virtual machines (outsourcing) and with a RedHat OS's. So i want that you help me to choose a virtualisation technologie (for the i prefer KVM of Redhat RHEV, VMWare is expensive), how evaluate the hardware needs (this for evolution of 4 or 5 years) and to elaborate a good planing to don't forget any think. Thank you for your responses.

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  • Is it preferable to use POP or IMAP to check multiple google mail accounts from one?

    - by Adam Tuttle
    I have email accounts on several domains that use Google Mail, and thus far I've only ever used POP to send and receive mail from a single inbox. This is quite functional, and as long as I remember to select the appropriate FROM address when starting a new thread, mostly works without any additional thought: messages received on account A are replied to via account A, and so on. My only complaint is the lag -- I've seen sometimes as much as a half hour between messages arriving in an inbox before being imported into my primary inbox via POP. My question is this: Google also supports IMAP. Would that be in any way preferable over POP access? Reduced lag would be nice, but not at a general speed cost, if everything I do has to check another mailbox too.

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  • What's the best way to be able to reimage windows computers?

    - by mos
    I've got a low-end machine for testing our software. It needs to be tested under various versions of Windows, so I was planning installing each one on its own partition. Then I realized that after testing our software, I'd want to roll back to the previous, clean state. I don't want to use any virtualization software because it tends to interfere with the workings of our app. That said, what's the best way to achieve my goal? Norton Ghost? Edit: I work for a pretty monstrously huge organization. Money is no object here (and sometimes, if the wrong people get wind of it, "open source" software is bad).

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  • Create a home virtual network

    - by Tom Lisc
    I can't seem to get answers to this question. I want to setup up 2-3 computers in my house to run Linux based virtual machines fed from my dedicated Arch Linux server. I need them to have full sound and video support. At my workplace we use VMware (View), but that is too cost prohibited for me to deploy for my wife and the two 10 year olds. I have tried Virtualbox machines and they are fine, but I cannot get sound working. Any help/hints would be greatly appreciated.

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  • How to increase the disk cache of Windows 7

    - by Mark Christiaens
    Under Windows 7 (64 bit), I'm reading through 9000 moderately sized files. In total, there is more than 200 MB of data. Using Java (JDK 1.6.21) I'm iterating over the files. The first 1400 or so go at full speed but then speed drops off to 4ms per file. It turns out that the main cost is incurred simply by opening the files. I'm opening the files using new FileInputStream (and of course closing them in time to avoid file leaks). After some investigating, I see that Windows' disk cache is using only 100 MB or so of RAM although I have 8 GiB available. I've tried increasing the cache size using the CacheSet tool but any values I provide are considered out of range. I've also tried enabling the LargeSystemCache registry key but (after rebooting) the CacheSet tool still indicates I'm using 100 MB of cache (and doesn't increase during the test run). Does anybody have any suggestions to "encourage" Windows 7 to cache my 9000 files?

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  • DELL U2410 Monitor(Display Port) & Graphic card

    - by Anj
    I was looking for a 24" monitor and bought the Dell 24" inch ultra sharp monitor which has DisplayPort( new keyword for me) seems it is equivalent to HDMI. Now I would like to enhance the display capabilities for my laptop and desktop(both have VGA output as of now). Couple of questions in mind: Is there a single HD graphic card which i could use for both desktop and laptop? I understand it has to be external but if its costly then I would stick on internal graphic card for my desktop. Please recommend external if its cost effective else I would go for internal one(Budget is around $70 or Rs 4000. Is there a HD card which I could use for both HD video and 5.1 channel audio output? I generally use the computer for office work/ listening music and watching movies, not gaming.

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  • two shops network

    - by edward
    okay so, I just opened up two shops in my hometown. The two stores is about 6 blocks apart, connecting them by wire is not really feasible in cost wise. What kind of network topology should I use for my small shops, there will be 5 computers, one is the sales computer ,another 4 as mentioned is the guest computer. I want the sales and guest computers network to be seperated. Both shops have same computers. The guest computers serves up simple website that has my shop catalog on it, I'm thinking of using a web server. So, how am i suppose to setup these networks, im planning to add in more computers in the future. Is it I need to station a single server at a shop, and all the computer connected to it? or is there any more effective methods? I'm no networking expert, would love to hear some advice.

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  • Copy an Amazon EC2 Instance to use locally

    - by Excolo
    Ok, so we have a spare server I have installed Debian Wheezy on, and setup Xen on for virtual machines. It has better performance than all our ec2 instances combined, and will cost less to run (for a few various reasons) I would like to get the EC2 instances downloaded to my server, and converted to run for Xen, but im having difficulty finding anything specific. I did not setup the EC2 instances myself, and am not very familiar with them. Everything I have found (which isnt much) just says "Do XYZ" and I have no idea how to do those. So being as specific as possible would be helpful. Also, confusingly I see people writing in forums saying you can only export linux images (which mine are, Ubuntu images) but then I see on amazons export tool saying you can only export Windows server? Am I missing something here? Is that not the right place to be looking? Thanks

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  • 56.6 Modem with CallerID

    - by Fuod
    Does anyone still know anything about the 56.6 modems? I'm looking for one that is easy to access via C#/VB.Net, has Caller ID and is either low-profile or USB. Also that neat little feature that lets the modem block the call from the phone (pass-through) until it has received the CallerID info would be really nice! Obviously I could just go to Best Buy and get what they have but I have no way of knowing how friendly it would be to write code for and I don't want to make multiple trips returning/exchanging etc. I'm not going to be doing anything with voice or voice mail, just recording the number from CallerID. Thanks!

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  • How to use value from primary accessdatasource control as parameter in select query for secondary ac

    - by weedave
    Hi, I'm trying to display all orders placed and I have a primary accessdatasource control that has a select query to get the customer information and the orderID. I want to use the orderID value from this first query as a parameter for the secondary accessdatasource control that selects the product information of the products in the order. In plain english, I want to:- select product info from product table where orderID = ? (where ? is the orderID value from the first query) I have tried the <%#Eval("OrderID")% but I get a "server tag not well formed" error, but I do get results returned when I just type the order ID in, but obviously every result (order) just contains the same product info... <asp:Repeater ID="Repeater1" runat="server" DataSourceID="AccessDataSource1"> <ItemTemplate> <asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="~/App_Data/project.mdb" SelectCommand="SELECT orderDetails.OrderID, album.Artist, album.Album, album.Cost, album.ImageURL, orderDetails.Quantity, orderDetails.Total FROM (album INNER JOIN orderDetails ON album.AlbumID = orderDetails.AlbumID) WHERE (orderDetails.OrderID = ? )"> <SelectParameters> // Error is on this line <asp:Parameter Name="OrderID" DefaultValue="<%#Eval ("OrderID")%>" /> </SelectParameters> </asp:AccessDataSource> <div class="viewAllOrdersOrderArea"> <div class="viewAllOrdersOrderSummary"> <p><b>Order ID: </b><%#Eval("OrderID")%></p> <h4>Shipping Details</h4> <p><b>Shipping Address: </b><%#Eval("ShippingName")%>, <%#Eval("ShippingAddress")%>, <%#Eval("ShippingTown")%>, <%#Eval("ShippingPostcode")%></p> <h4>Payment Details</h4> <p><b>Cardholder's Address: </b><%#Eval("CardHolder")%>, <%#Eval("BillingAddress")%>, <%#Eval("BillingTown")%>, <%#Eval("BillingPostcode")%></p> <p><b>Payment Method: </b><%#Eval("CardType")%></p> <p><b>Card Number: </b><%#Eval("CardNumber")%></p> <p><b>Start Date: </b><%#Eval("StartDate")%>, Expiry Date: <%#Eval("ExpiryDate")%></p> <p><b>Security Digits: </b><%#Eval("SecurityDigits")%></p> <h4>Ordered items:</h4> <asp:Repeater ID="Repeater2" runat="server" DataSourceID="AccessDataSource2"> <ItemTemplate> <div style="display: block; float: left;"> <div class="viewAllOrdersProductImage"> <img width="70px" height="70px" alt="<%# Eval("Artist") %> - <%# Eval("Album") %>" src="assets/images/thumbs/<%# Eval("ImageURL") %>" /> </div> <div style="display:block; float:left; padding-top:15px; padding-right:20px;"><p><b><%# Eval("Artist") %> - <%# Eval("Album") %></b></p> <p>£<%# Eval("Cost") %> x <%# Eval("Quantity") %> = £<%#Eval("Total")%></p></div> </div> </ItemTemplate> </asp:Repeater> </div> </div> </ItemTemplate> </asp:Repeater>

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  • How can I tell if a host is bridged and acting as a router

    - by makerofthings7
    I would like to scan my DMZ for hosts that are bridged between subnets and have routing enabled. Since I have everything from VMWare servers, to load balancers on the DMZ I'm unsure if every host is configured correctly. What IP, ICMP, or SNMP (etc) tricks can I use to poll the hosts and determine if the host is acting as a router? I'm assuming this test would presume I know the target IP, but in a large network with many subnets, I'd have to test many different combinations of networks and see if I get success. Here is one example (ping): For each IP in the DMZ, arp for the host MAC Send a ICMP reply message to that host directed at an online host on each subnet I think that there is a more optimal way to get the information, namely from within ICMP/IP itself, but I'm not sure what low level bits to look for. I would also be interested if it's possible to determine the "router" status without knowing the subnets that the host may be connected to. This would be useful to know when improving our security posture.

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  • Why can't I right click on flash videos in Chrome? (Ubuntu 9.10)

    - by user242065
    I'm trying to change the "quality" to low of a Hulu video so I can full screen it with out it being choppy but right click does nothing. When I right click in firefox it brings up a menu. I'm running Chrome on Ubuntu 9.10, is any one else having this issue I tried Google and got nothing back. I use chrome as my main browser, I have to switch to firefox every time I watch Hulu videos. Is there another way I cant change the quality of the flash video in Chrome?

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  • show hidden div tag from another page

    - by neueweblernen
    I'm trying to link to an all-inclusive FAQ page from various pages. The answers are contained in tags, nested within a line item of an unordered list housed by categories. The FAQ page has the following categories: Practical Nurse Exam Online Renewal Practice Hours etc. Under Practical Nurse Exam, there are sub categories, subjects, with questions below in tags that expand onClick. (e.g. Examination Day, Exam Results, etc.) Let's say I'm on a different page called Registration and there's a link to the FAQs for Exam Results. I'm able to link to the page and included the hashtag on the anchor or Exam Results, but it does not expand the subcategory. I've read this thread but it didn't work for me. Please help! The code is below: <script type="text/javascript"> function toggle(Info,pic) { var CState = document.getElementById(Info); CState.style.display = (CState.style.display != 'block') ? 'block' : 'none'; } window.onload = function() { var hash = window.location.hash; // would be "#div1" or something if(hash != "") { var id = hash.substr(1); // get rid of # document.getElementById(id).style.display = 'block'; } } </script> <style type="text/css"> .FAQ { cursor:hand; cursor:pointer; } .FAA { display:none; padding-left:20px; text-indent:-20px; } #FAQlist li { list-style-type: none; } #FAQlist ul { margin-left:0px; } headingOne{ font-family:Arial, Helvetica, sans-serif; color:#66BBFF; font-size:20px; font-weight:bold;} </style> Here's the body (part of it anyway) <headingOne class="FAQ" onClick="toggle('CPNRE', this)">PRACTICAL NURSE EXAM</headingOne> <div class="FAA" id="CPNRE"> <h3><a name="applying">Applying to write the CPNRE</a></h3> <ul id="FAQlist" style="width:450px;"> <li class="FAQ"> <p onclick="toggle('faq1',this)"> <strong>Q: How much does it cost to write the exam?</strong></p> <div class="FAA" id="faq1"> <b>A.</b> In 2013, the cost for the first exam writing is $600.00 which includes the interim license fee. See <a href="https://www.clpnbc.org/What-is-an-LPN/Becoming-an-LPN/Canadian-Practical-Nurse-Registration-Examination/Fees-and-Deadlines.aspx"> fee schedule</a>.</div> <hr /> </li> and here's the body of the other page that contains the link and the same script syntax as the all-inclusive FAQ page. This is just a test, that's not exactly what it will say: <a onclick="toggle('CPNRE', this)" href="file:///S|/Designs/Web stuff/FAQ all inclusive.html#applying"> click here</a>

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  • Hardware recommendations for building an Ubuntu encrypted file server

    - by Robert Mashlan
    I would like to build a file server for my home network using Ubuntu. It will serve files from RAID1 configured disks, either in the OS or in hardware. It will be connected to a Gigabit ethernet LAN. The disks will use an encrypted file system. It will serve samba shares. I would like a recommendation on what kind of processing power/memory I would need to build a box that would be able to sustain the full capacity of the Gigabit ethernet connection in a file transfer for a single connection with the overhead of serving from an encrypted disk. I'm not looking to build a dream server, I just want enough processing capacity for high performance (and reliable) file sharing and spend as little as possible for it. This may be tangential, but what kind of hardware would I need to have a server be able to reliably go into a low power mode when no requests are being made of it?

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  • Need to scale quickly. Which cloud service should I use?

    - by mk1000
    Traffic to my facebook app is growing at an insane rate and I need some suggestions on how to scale. I'm probably not going to even be able to keep it running by the day's end, as it's hosted from my already overloaded dedicated server. I need to either move it to its own box or a cloud service like e2c. Something like e2c seems like the way to go, but my server admin skills are terrible. Is there a good front end management UI for e2c or another hosting service that is comparable in cost that is fully managed? I don't mind going with something a bit more expensive now if that means I can get everything switched over and running within 24 hours.

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  • Increase Volume of an MKV Video from Linux Terminal

    - by The How-To Geek
    I've got a large amount of .MKV video files which seem to all play at a very low volume - I end up having to turn the TV up all the way to hear them, which is really irritating when I switch to another channel and wake the dead because it's so loud. What I'm looking for is a command-line method to increase the volume (so I can run it on all of them quickly) that would hopefully work regardless of the audio codec in use in the particular file. (I don't mind hard-coding the output audio though). For reference, I'm using Ubuntu 9.04 on my server, and the files are being played back with Boxee on a Mac Mini, but the volume problem is the same on Windows too.

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  • Would SSD drives benefit from a non-default allocation unit size?

    - by davebug
    The default allocation unit size recommended when formatting a drive in our current set-up is 4096 bytes. I understand the basics of the pros and cons of larger and smaller sizes (performance boost vs. space preservation) but it seems the benefits of a solid state drive (seek times massively lower than hard disks) may create a situation where a much smaller allocation size is not detrimental. Were this the case it would at least partially help to overcome the disadvantage of SSD (massively higher prices per GB). Is there a way to determine the 'cost' of smaller allocation sizes specifically related to seek times? Or are there any studies or articles recommending a change from the default based on this newer tech? (Assume the most average scattering of sizes program files, OS files, data, mp3s, text files, etc.)

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