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• Delete temporary files from batch script in xp

  - by Keith Bentrup

  I'm looking for a good batch script that would quickly find & clean all the known safe temporary folders/files from Windows (as many variants as possible) machines (e.g. the windows temp folder, all users IE temp folders, etc.). I'm fond of UI tools like CCleaner (over Cleanmgr.exe), but when I'm trying to clean several computers quickly and/or with minimal involvement, it would be nice to have a script. Plus with a script, I could chain several scripts together. Maybe one to then fire up various antivirus and/or malware detectors. Anyone have a good one or can point to a good resource?

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• Host forwarding fails, server is up, domain name tests ambiguous

  - by jayunit100

  I have a domain name registered with http://www.registryrocket.com/ The "main" site, which is called rudolfcode.net, is registered under godaddy, and forwards to a heroku site (rudolfcode.herokuapp.com). I have found that the main site, rudolfcode.net works, but the hostgator forwarding has stopped working (firefox simply fails when you point to http://www.rudolflabs.com, which is the domain name registered by hostgator). How can I debug this issue ? Finally, I have tried to run some DNS tests, and here are the results : Im not sure what the failures mean .... But Im pretty sure that "Conecting to WWW Home Page" failed is a pretty bad sign ! Thanks.

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• Apache on Windows random long wait times

  - by Jaxbot

  I have a development machine with Apache installed as a service on Windows. The installation is fresh out of the box, with no changes to configuration aside from adding the PHP module. From day one, I've had a problem that looks like this: Essentially, Apache is freezing for about 11 seconds before replying on random requests. This appears to happen more frequently when the host hasn't been connected to in a while, but this is not always the case. I've eliminated MySQL, PHP, and the specific application; this long wait problem will occur even when loading a static file such as favicon.ico. Thus, the only factor remaining is Apache, which is freezing for consistently around 10-11 seconds before replying. The problem is not the DNS problem that many people point to; as you can see, the DNS lookup is instant, and the problem occurs both on localhost and 127.0.0.1. Thanks for the time.

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• MVC 3: ActionLink VB.Net

  - by xamlnotes

  Theres not a ton of good samples out there on using MVC with VB, so I am going to post some things that I am doing on a project. Lets look at links. I am converting a asp classic app to mvc.  One page has an anchor tag which I modified to look like so to point to a controller action: <A style=color:red; HREF='Detail/" & currentItem.IdNumber & "'>" & currentItem.IdNumber & "</A> This resolves out to what looks like the right URL and in fact the detail action is fired. The actions signature looks like so: Function Detail(ByVal IdNumber As String) As ActionResult But, IdNumber would always be blank, it was never set to the id passed in the url.  Hmm. So, I tried the following by using the ActionLink method of the html helper: Html.ActionLink(currentLead.LeadNumber, "Detail", New With {.IdNumber = currentItem.IdNumber })  Viola! That worked fine and the Detail method parameter was set just like it should be. Very interesting.

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• How to install Gitlab in a VM on a production server?

  - by Michaël Perrin

  I have a production server running Ubuntu 12.04 and I would like to install on it a VM with Gitlab (using Vagrant and Virtualbox). Let's say that the address to access Gitlab is gitlab.mydomain.com . The DNS zone has been configured to point to the IP address of the server. I want users to be able to access to Gitlab (either for pushing to a repository, or for accessing to the web interface) from the outside. The VM has been configured to have an IP address. It means that when browsing http://gitlab.mydomain.com for instance, the request has to be forwarded to the VM on the server, ie. to the VM IP address. What are the ways to configure this? Can Apache be used as a proxy? In this case, I guess it only works for HTTP requests, but not for pushing to a Git repository on the VM.

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• Do your own design jobs and make it look professional

  - by Webgui

  Looks and design is becoming more and more important for customers and organizations event when we deal with internal enterprise applications. However,  many web developers who work on business apps end up not investing resources on the design. The reason may be that they ran out of time so with their client's pressure there was no choice but to skip past the design process. In some cases, especially in sall software houses, there are no trained professional designers and the developers have to do both jobs. Since designing web applications can be very complex and requires mastering several languages and concepts, unless a big budget was allocated to the project it is very hard to produce a professional custom design. For that exact reasons, Visual WebGui integrated Point & Click Design Tools within its Web/Cloud Development Platform. Those tools allow developers to customize the UI look of the applications they build in a visual way that is fairly simple and doesn't require coding or mastering HTML, CSS and JavaScript in order to design. The development tools also allow professional designers easier work interface with the developers and quicly create new skins. So if you are interested in getting your design job done much easier, you should probably tune in for about an hour and find out how. Click here to register: https://www1.gotomeeting.com/register/740450625

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• Link to a folder in the top Ubuntu panel

  - by Seamus

  Hi. I like the little top panel thing in Ubuntu. I have links to all my most used programs on there. (Which is why I don't see the point of docky or any of those things: they seem to do the same job, but they're messier). What I'd like is to have a little icon for my documents folder up there too. But I don't seem to be able to do it. It's not one of the options listed when you go to "add to panel...". Am I missing something ridiculously easy?

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• Installing Drupal: Database configuration problem.

  - by abelenky

  I am trying to install Drupal 6.16 on a clean website. I get through the "Verify Requirements" page easily. On the Database Configuration, I supply all the proper info, but "Save and Continue" returns me back to the same page, with no error message. I am unable to proceed past this point. I've verified my info with the ISP, including a non-local database host (under Advanced Options), and that the database user has full DBA rights. The lack of an error message is particularly frustrating. Do you have any ideas what the problem is, or how to pursue it and resolve it?

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• Box2D `ApplyLinearImpulse` is not working whereas `SetLinearVelocity` works

  - by Narek

  I need to mimic jumping behavior for the player in my game. Player consists of two fixtures with circle and rectangle shapes. Rectangle I use to detect ground and it is a sensor. Is some point for jumping I do this: float impulseY = body->GetMass() * PLAYER_JUMPING_VEOCITY / PTM_RATIO * std::sin(PLAYER_JUMPING_ANGLE * PI / 180); body->ApplyLinearImpulse(b2Vec2(0, impulseY), body->GetWorldCenter(), true); and player does not jump. But when I do this: body->SetLinearVelocity(b2Vec2(0, PLAYER_JUMPING_VEOCITY / PTM_RATIO * std::sin(PLAYER_JUMPING_ANGLE * PI / 180))); my player jumps. Also when I change the rectangle shape to be normal (not sensor) shape, its works again. Why? Just in case here are the parameters of my rectangular sensor: b2PolygonShape boxShape; boxShape.SetAsBox(width * 0.5/2/PTM_RATIO, height * 0.2/2/PTM_RATIO, b2Vec2(0, -height * 0.4 /PTM_RATIO), 0); b2FixtureDef boxFixtureDef; boxFixtureDef.friction = 0; boxFixtureDef.restitution = 0; boxFixtureDef.density = 1; boxFixtureDef.isSensor = true; boxFixtureDef.userData = static_cast<void*>(PLAYER_GROUP);

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• How to sync bookmarks between Firefox, Chrome, and Safari on multiple computers?

  - by Tai Squared

  There are some similar question on bookmark syncing, but most answers point to Delicious or Google bookmarks. However, as Chrome doesn't have the Google toolbar, how would those sync? I use several computers and different browsers on them so I would like a easy solution to keep all of the bookmarks in sync on various computers and browsers in the same organizational structure throughout. Also, I would prefer to have my bookmarks only synced to my account, not necessarily visible to the whole world as on Delicious. Is there any service that could handle this?

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• When is it time to buy a new hard drive, and what considerations go into buying a new hard drive?

  - by user1125620

  I've had my current hard drive for about 4-5 years now, and I've never had a problem with it before, but now it's making whirring noises. It's done this before and, last time, the noise did go away the next day, but I have accumulated quite a bit of information that I wouldn't want to lose on the drive. HD Tune Pro and Berlac Advisor both said the drive was healthy, and I wouldn't want to get a new one unless it was absolutely necessary or was going to show drastic performance improvements. My only knock against the drive would be that Visual Studio takes longer to load than I'd like it to. HD Tune Pro says the average read speed is 54.3MB/s. I'm not sure if that's good or bad, but it seems about average compared to similar drives on http://www.hdtune.com/testresults.html. Model #: WDC WD5000AAJS-22YFA0 So, should hard drives be replaced after a certain amount of time? Has mine reached that point? Would a new hard drive be any faster?

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• Select firefox search result

  - by Nicolas C.

  I am working on a daily basis on a web application with very large menus. Also doing lots of other Excel manipulations, copy and pasting, etc., I am quite fond of keyboard shortcuts as much faster than using the mouse to point, double-click and then going back to my keyboard etc. Hence, my question is quite simple, does anyone know if there is any shortcut under Firefox which would let me actually select (and not highlight) in my web page the search result so that I can for instance do the following manipulation sequence? [Ctrl]+[F] type the search string, for instance 'regional_unit' the missing shortcut to actually select in my page the string which is currently highlighted thanks to the search feature of FF [Space] or [Enter] key to activate the web element which in my case would systematically correspond to a link or button, etc. May be there would be an addon replacing the default search feature, I don't know... I tried to look over the internet but with the words I am using for this investigation, I do not get relevant search results under Google :(. Thanks a lot

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• Cisco 2911 - problem with DHCP

  - by bluszcz

  Hi, i am configuring DHCP daemon on Cisco 2911. At some point i assigned address 192.168.50.50 to one box (using MAC address 'relation'). When I wanted to saved config - I got warning, that address 192.168.50.50 is already in Pool, which sounds bit weird - it was first host which I started configuring. I tried with following commands: clear ip dhcp server statistics clear ip dhcp conflict but first one doesn't output anything (and show statistics shows that there are 2 addresses in pool), and second one throws "there is no conflicted ips" message. How I can force/purge/clear/allow to bind 192.168.50.50 to this box?

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• Installing Visual Studio 2010 SP1 or Windows Phone tools in your VM (danger!)

  - by Jeff

  If you've read my blog for any amount of time, you probably know that I tend to develop stuff in a Parallels VM on a Mac. It's how I roll. I like VM's because I can trash them and do really stupid things with beta software. That said, there is a pain point that doesn't seem that well documented when it comes to installing stuff in this scenario.The WP7 tools, and SP1 for Visual Studio 2010 (perhaps only if you already have the WP7 tools installed, I'm not sure), do something strange on install. As if it weren't already a long and slow installation, for reasons I don't understand, the installer fires up an instance of Windows Phone Emulator. As you may already know, the emulator doesn't run in a VM, because it is itself a VM, apparently. What it will do is fire up your CPU, make your comprooder hot and make the fans blow harder.I found this out accidentally, as I started the (slow) phone tool installation once, and walked away. An hour and a half later, I came back to find it hadn't finished. But it was hot and the CPU was pegged, so I fired up the task manager to find XDE.exe, the phone emulator, cranking away. I had to kill it several times, and eventually the install finished. It fired up just once in the SP1 install, but it still had the same hanging effect.I can't for the life of me figure out why it does this. In a VM, I can connect the phone to it and use that, so I don't need the emulator. But this install, firing up the emulator, will make it choke until you kill the XDE.exe process. Watch out!

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• ubuntu 10.04: boot error for custom compiled kernel - gave up wating for root device

  - by atharva

  Hi, I have installed lucid on my Lenevo Laptop (Y 410 series , x86 platoform) and it is working fine. Now I have compiled kernel 2.6.37 from the downloaded from the kernel tree. I followed usual procedure of compileing kernel (make menuconfig,make. make modules etc). Then I created the initrd image using mkinitramfs and updated my grub using upadate grub command. Update-grub detects the initrd image of the compiled kernel. However when I boot from this kernel it gives me following error: Gave up waiting for root device. Common problems: -Boot args (cat /proc/cmdline) -Check rootdelay= (did the system wait long enough?) -Check root= (did the system wait for the right device?) -Missing modules (cat /proc/modules; ls /dev) ALERT! root=UUID=/... does not exist and then it falls onto initramfs prompt. I have tried following solutions discussed in different ubuntu forums: 1. disable uuid and point root=/dev/sda8 (sda8 is where my kernele image resides (both default kernel and compiled one) from /etc/default/grub 2. compile kernel using CONFIG_DEVTMPFS=y suggested here Still I am unable to boot from the compile kernel. Could someone please suggest me the solution ?

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• Dynamic quadrees

  - by paul424

  recently I come out writing Quadtree for creatures culling in Opendungeons game. Thing is those are moving points and bounding hierarchy will quickly get lost if the quadtree is not rebuild very often. I have several variants, first is to upgrade the leaf position , every time creature move is requested. ( note if I would need collision detection anyway, so this might be necessery anyway). Second would be making leafs enough large , that the creature would sure stay inside it's bounding box ( due to its speed limit). The partition of a plane in quadtree is always fixed ( modulo the hierarchical unions of some parts) . For creatures close to the center of the plane , there would be no way of keeping it but inside one big leaf, besides this brokes the invariant that each point can be put into any small area as desired. So on the second thought could I use several quadrees ? Each would have its "coordinate axis XY" somwhere shifted ? Before I start playing with this maybe some other space diving structure would suit me better, unfortunetly wiki does not compare it's execution time : http://en.wikipedia.org/wiki/Grid_%28spatial_index%29#See_also

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• Python Web Applications: What is the way and the method to handle Registrations, Login-Logouts and Cookies? [on hold]

  - by Phil

  I am working on a simple Python web application for learning purposes. I have chosen a very minimalistic and simple framework. I have done a significant amount of research but I couldn't find a source clearly explaining what I need, which is as follows: I would like to learn more about: User registration User Log-ins User Log-outs User auto-logins I have successfully handled items 1 and 3 due to their simple nature. However, I am confused with item 2 (log-ins) and item 4 (auto-logins). When a user enters username and password, and after hashing with salts and matching it in the DB; What information should I store in the cookies in order to keep the user logged in during the session? Do I keep username+password but encrypt them? Both or just password? Do I keep username and a generated key matching their password? If I want the user to be able to auto-login (when they leave and come back to the web page), what information then is kept in the cookies? I don't want to use modules or libraries that handle these things automatically. I want to learn basics and why something is the way it is. I would also like to point out that I do not mind reading anything you might offer on the topic that explains hows and whys. Possibly with algorithm diagrams to show the process. Some information: I know about setting headers, cookies, encryption (up to some level, obviously not an expert!), request objects, SQLAlchemy etc. I don't want any data kept in a single web application server's store. I want multiple app-servers to be handle a user, and whatever needs to be kept on the server to be done with a Postgres/MySQL via SQLAlchemy (I think, this is called stateless?) Thank you.

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• What tools and knowledge do I need to create an application which generates bespoke automated e-mails? [on hold]

  - by Seraphina

  I'd like some suggestions as to how to best go about creating an application which can generate bespoke automated e-mails- i.e. send a personalized reply to a particular individual, interpreting the context of the message as intelligently as possible... (This is perhaps too big a question to be under one title?) What would be a good starting point? What concepts do I need to know? I'd imagine that the program needs to be able trawl through e-mails as and when they come in, and search for keywords in e-mail content, in order to write an appropriate reply. So there needs to be some form of automated response embedded in the code. Machine learning and databases come to mind here, as I'm aware that google incorporates machine learning already in gmail etc. It is quite tricky to google the above topic, and find the perfect tutorial. But there are some interesting articles and papers out there: Machine Learning in Automated Text Categorization (2002) by Fabrizio Sebastiani , Consiglio Nazionale Delle Ricerche However, this is not exactly a quick start guide. I intend to add to this question, and no doubt other questions will spark off this one. I look forward to suggestions.

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• Issue with Windows Server backup

  - by mamu

  I have windows server 2008 r2 installed, Only service running on it is hyper-v. I am trying to take backup using windows server backup feature and it fails with following error in eventlog The backup operation that started at '?2009?-?08?-?22T18:42:14.123000000Z' has failed because the Volume Shadow Copy Service operation to create a shadow copy of the volumes being backed up failed with following error code '2155348129'. Please review the event details for a solution, and then rerun the backup operation once the issue is resolved. Above error itself is point to other event logs for more detail but i can't find anything in event logs Then i ran following command vssadmin list writers It had following out of ordinary in list Writer name: 'Microsoft Hyper-V VSS Writer' Writer Id: {66841cd4-6ded-4f4b-8f17-fd23f8ddc3de} Writer Instance Id: {d15c5f78-121c-464f-b23b-f285e919b05c} State: [8] Failed Last error: Inconsistent shadow copy How could i resolve this?

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• Oracle redo log performance degradation when inserting

  - by Aldarund

  I have a oracle 11g database. I'm testing in for inserts. The database running in noarchive mode. I have 3 redo log configured, each 2gb. I'm trying to insert data into test table. At begin it goes fine with 15k ins/second. I make a commit after 200 inserts. But after about 1.3m inserted records it become really slow, about 1-2k ins/second. As i noticed in resource explorer at this point we have filled all redo logs and so the inserts from this points work slow. So my question is why it become so slow when it fills redo logs, even if i commit each 200 records. And how this situation can be fixed ( except the turning off logging completely at inserts)

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• Error from DNS validation service: RFC821 4.3

  - by ferdi

  So I've managed to setup bind9 and a mail server, but it seems there is something wrong. I don't quite under stand this error: The configuration of your mail servers and your DNS are not ok! The report of the test is: mail.domain.com. - mail.domain.com - 208.xxx.xxx.xxx - lisa.domain.com Spam recognition software and RFC821 4.3 (also RFC2821 4.3.1) state that the hostname given in the SMTP greeting MUST have an A record pointing back to the same server. Can anyone explain this to me in a bit more detail, and maybe point me in a direction to solve this?

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• bash terminal/console strange overlapping behavior

  - by UpKey

  I am using gnome-terminal in Ubuntu 11.10 and seem to get long lines overlapping in the terminal window. When I copy a long command line and paste it into the terminal, the text gets overlapped to the start of the line and often covers the user prompt. If I resize the terminal window, making it wider the overlapping gets undone and everything looks normal. In previous versions of Ubuntu, if a line was too long it would continue on the next line below. Another problem I have noticed that may be related, is when using the up arrow key to show previously typed commands, sometimes instead of the output command line being replaced by the previous command each time the key is pressed, the lines get partially merged. A portion of the old line remains, and the next command gets joined onto the end. This leftover part of a command is persistent and does not get replaced next time the key is pressed, although the insertion point or blinking cursor is at the end of the latest recalled command, and the leftover has no effect if I press enter. Is this problem a bug or some setting that needs fixing? Where do I look for the cause? keyboard? gnome-terminal? bash? Thank you for any help or suggestions offered

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• What kind of eye wear can I use to protect my eyes from being irritated from staring at a screen all

  - by dr dork

  Many of us stare at computer screens all day. Lately, my eyes have been irritated from prolonged staring at my computer screens. Does anyone use or know of any eye wear technology that helps with this? About five years back, I bought a pair of non-prescription eye glasses that had a no-glare layer put on them by an optometrist. It slightly helped, so I'm considering getting another pair. Is this the best option I have at this point? Thanks so much in advance for your wisdom!

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• Project Management Software / 1 maybe 2 developers

  - by Ominus

  I am looking for software that I can use to "manage" multiple projects (5 - 10). Here are the features I would like but any recommendation is welcome. Bug/Feature tracking on a per project basis. Some way to keep all documents, diagrams, specs, requirements, in one place with the project. Better yet a tool where all these things or most of them could be authored. Task management during the development phase with milestones and estimates/actuals. Git integration I have been doing contract work and i have been doing really well for myself as far as getting projects but its becoming VERY hard to manage everything in an efficient manner. I am trying to learn about best practices when it comes to software programming methodologies and the more I read the more i realize that I am just managing these projects poorly. I am getting things done but the more I take on the less "solid" everything is. I am afraid if I don't get some good solid tools/practices in place I am going to do my customers and myself a disservice. The problem is that there are SO many options that its hard to weed through them all. I was at a point today where I had decided that I would just code my own (there is some irony here)! Obviously everyone has their likes dislikes I would love to hear from some of you lone programmers and how you manage everything since our needs aren't exactly the same thing that a large team might need. I also want a solution that can scale to 2 maybe 3 developers if I end up hiring some people to help with my work load. Thanks again for your usual insights!

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• Can vCenter 4 authenticate and authorize against a virtual directory server??

  - by iforeman

  Hi I am looking into Identity managment in our environment. We currently use Active Directory and Sun's Enterprise Directory server (6.3). I was wondering if I used the Virtual Directory Server of the Enterprise Directory server, would we be able to point the vCenter clients to this Directory service for authentication and authorization rather than at the AD source. The reason for this is that we have more users we want to add to the management role of this server but not all are in AD, a fair number are in the Sun LDAP v3. directory. Thanks in advance Ian

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