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• OpenGL Calls Lock/Freeze

  - by Necrolis

  I am using some dell workstations(running WinXP Pro SP 2 & DeepFreeze) for development, but something was recenlty loaded onto these machines that prevents any opengl call(the call locks) from completing(and I know the code works as I have tested it on 'clean' machines, I also tested with simple opengl apps generated by dev-cpp, which will also lock on the dell machines). I have tried to debug my own apps to see where exactly the gl calls freeze, but there is some global system hook on ZwQueryInformationProcess that messes up calls to ZwQueryInformationThread(used by ExitThread), preventing me from debugging at all(it causes the debugger, OllyDBG, to go into an access violation reporting loop or the program to crash if the exception is passed along). the hook: ntdll.ZwQueryInformationProcess 7C90D7E0 B8 9A000000 MOV EAX,9A 7C90D7E5 BA 0003FE7F MOV EDX,7FFE0300 7C90D7EA FF12 CALL DWORD PTR DS:[EDX] 7C90D7EC - E9 0F28448D JMP 09D50000 7C90D7F1 9B WAIT 7C90D7F2 0000 ADD BYTE PTR DS:[EAX],AL 7C90D7F4 00BA 0003FE7F ADD BYTE PTR DS:[EDX+7FFE0300],BH 7C90D7FA FF12 CALL DWORD PTR DS:[EDX] 7C90D7FC C2 1400 RETN 14 7C90D7FF 90 NOP ntdll.ZwQueryInformationToken 7C90D800 B8 9C000000 MOV EAX,9C the messed up function + call: ntdll.ZwQueryInformationThread 7C90D7F0 8D9B 000000BA LEA EBX,DWORD PTR DS:[EBX+BA000000] 7C90D7F6 0003 ADD BYTE PTR DS:[EBX],AL 7C90D7F8 FE ??? ; Unknown command 7C90D7F9 7F FF JG SHORT ntdll.7C90D7FA 7C90D7FB 12C2 ADC AL,DL 7C90D7FD 14 00 ADC AL,0 7C90D7FF 90 NOP ntdll.ZwQueryInformationToken 7C90D800 B8 9C000000 MOV EAX,9C So firstly, anyone know what if anything would lead to OpenGL calls cause an infinite lock,and if there are any ways around it? and what would be creating such a hook in kernal memory ? Update: After some more fiddling, I have discovered a few more kernal hooks, a lot of them are used to nullify data returned by system information calls(such as the remote debugging port), I also managed to find out the what ever is doing this is using madchook.dll(by madshi) to do this, this dll is also injected into every running process(these seem to be some anti debugging code). Also, on the OpenGL side, it seems Direct X is fine/unaffected(I ran one of the DX 9 demo's without problems), so could one of these kernal hooks somehow affect OpenGL?

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• How to best future proof my application that needs to connect to Outlook?

  - by Troy

  I have a contact management application written in Delphi which has a “Sync with Outlook” feature that I developed 10 years ago. Now, I’m going back to add some features and fix some bugs. This sync feature uses the Outlook object model to get started, but it has an optional mode called “Use MAPI Enhancements” where it uses pure MAPI to speed up how it looks for changes, and it allows notes to be synced w/ RTF instead of just plain text. I'm wondering if supporting two parallel paths of execution is a good idea or not. If I went with all MAPI, I believe I'd avoid some security prompts, and I'd avoid situations where anti-virus has "script-blocking" features which block my app from connecting to Outlook. But I believe that on the down side, my 32-bit app would not be able to to connect with 64-bit Outlook 2010 using MAPI. And I wonder about the future of MAPI in general. If I stick with the Outlook object model, will my 32-bit app be able to connect to the Outlook object model (since it's out of process COM)? If so, this is a compelling reason to keep my Outlook object model execution path in place. But if not, and if my app needs to be compiled for x64, then why not just go with pure MAPI?

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• Injecting Dependencies into Domain Model classes with Nhibernate (ASP.NET MVC + IOC)

  - by Sunday Ironfoot

  I'm building an ASP.NET MVC application that uses a DDD (Domain Driven Design) approach with database access handled by NHibernate. I have domain model class (Administrator) that I want to inject a dependency into via an IOC Container such as Castle Windsor, something like this: public class Administrator { public virtual int Id { get; set; } //.. snip ..// public virtual string HashedPassword { get; protected set; } public void SetPassword(string plainTextPassword) { IHashingService hasher = IocContainer.Resolve<IHashingService>(); this.HashedPassword = hasher.Hash(plainTextPassword); } } I basically want to inject IHashingService for the SetPassword method without calling the IOC Container directly (because this is suppose to be an IOC Anti-pattern). But I'm not sure how to go about doing it. My Administrator object either gets instantiated via new Administrator(); or it gets loaded via NHibernate, so how would I inject the IHashingService into the Administrator class? On second thoughts, am I going about this the right way? I was hoping to avoid having my codebase littered with... currentAdmin.Password = HashUtils.Hash(password, Algorithm.Sha512); ...and instead get the domain model itself to take care of hashing and neatly encapsulate it away. I can envisage another developer accidently choosing the wrong algorithm and having some passwords as Sha512, and some as MD5, some with one salt, and some with a different salt etc. etc. Instead if developers are writing... currentAdmin.SetPassword(password); ...then that would hide those details away and take care of those problems listed above would it not?

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• Computing "average" of two colors

  - by Francisco P.

  This is only marginally programming related - has much more to do w/ colors and their representation. I am working on a very low level app. I have an array of bytes in memory. Those are characters. They were rendered with anti-aliasing: they have values from 0 to 255, 0 being fully transparent and 255 totally opaque (alpha, if you wish). I am having trouble conceiving an algorithm for the rendering of this font. I'm doing the following for each pixel: // intensity is the weight I talked about: 0 to 255 intensity = glyphs[text[i]][x + GLYPH_WIDTH*y]; if (intensity == 255) continue; // Don't draw it, fully transparent else if (intensity == 0) setPixel(x + xi, y + yi, color, base); // Fully opaque, can draw original color else { // Here's the tricky part // Get the pixel in the destination for averaging purposes pixel = getPixel(x + xi, y + yi, base); // transfer is an int for calculations transfer = (int) ((float)((float) (255.0 - (float) intensity/255.0) * (float) color.red + (float) pixel.red)/2); // This is my attempt at averaging newPixel.red = (Byte) transfer; transfer = (int) ((float)((float) (255.0 - (float) intensity/255.0) * (float) color.green + (float) pixel.green)/2); newPixel.green = (Byte) transfer; // transfer = (int) ((float) ((float) 255.0 - (float) intensity)/255.0 * (((float) color.blue) + (float) pixel.blue)/2); transfer = (int) ((float)((float) (255.0 - (float) intensity/255.0) * (float) color.blue + (float) pixel.blue)/2); newPixel.blue = (Byte) transfer; // Set the newpixel in the desired mem. position setPixel(x+xi, y+yi, newPixel, base); } The results, as you can see, are less than desirable. That is a very zoomed in image, at 1:1 scale it looks like the text has a green "aura". Any idea for how to properly compute this would be greatly appreciated. Thanks for your time!

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• Indentation control while developing a small python like language

  - by sap

  Hello, I'm developing a small python like language using flex, byacc (for lexical and parsing) and C++, but i have a few questions regarding scope control. just as python it uses white spaces (or tabs) for indentation, not only that but i want to implement index breaking like for instance if you type "break 2" inside a while loop that's inside another while loop it would not only break from the last one but from the first loop as well (hence the number 2 after break) and so on. example: while 1 while 1 break 2 'hello world'!! #will never reach this. "!!" outputs with a newline end 'hello world again'!! #also will never reach this. again "!!" used for cout end #after break 2 it would jump right here but since I don't have an "anti" tab character to check when a scope ends (like C for example i would just use the '}' char) i was wondering if this method would the the best: I would define a global variable, like "int tabIndex" on my yacc file that i would access in my lex file using extern. then every time i find a tab character on my lex file i would increment that variable by 1. when parsing on my yacc file if i find a "break" keyword i would decrement by the amount typed after it from the tabIndex variable, and when i reach and EOF after compiling and i get a tabIndex != 0 i would output compilation error. now the problem is, whats the best way to see if the indentation got reduced, should i read \b (backspace) chars from lex and then reduce the tabIndex variable (when the user doesn't use break)? another method to achieve this? also just another small question, i want every executable to have its starting point on the function called start() should i hardcode this onto my yacc file? sorry for the long question any help is greatly appreciated. also if someone can provide an yacc file for python would be nice as a guideline (tried looking on Google and had no luck). thanks in advance.

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• Recommendations to handle development and deployment of php web apps using shared project code

  - by Exception e

  I am wondering what the best way (for a lone developer) is to develop a project that depends on code of other projects deploy the resulting project to the server I am planning to put my code in svn, and have shared code as a separate project. There are problems with svn:externals which I cannot fully estimate. I've read subversion:externals considered to be an anti-pattern, and How do you organize your version control repository, but there is one special thing with php-projects (and other interpreted source code): there is no final executable resulting from your libraries. External dependencies are thus always on raw source code. Ideally I really want to be able to develop simultaneously on one project and the projects it dependends on. Possible way: Check out a projects' dependency in a sub folder as a working copy of the trunk. Problems I foresee: When you want to deploy a project, you might want to freeze its dependencies, right? The dependency code should not end up as a duplicate in the projects repository, I think. *(update1: I additionally assume svn:ignore will pose problems if I cannot fall back on symlinks, see my comment) I am still looking for suggestions that do not require the use junction points. They are a sort of unsupported hack in winxp, which may break some programs* This leads me to the last part of the question (as one has influence on the other): how do you deploy apps whith such dependencies? I've looked into BuildOut for Python, but it seems to be tightly related to the python ecosystem (resolving and fetching python modules from the web etc). I am very eager to learn about your best practices.

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• Matab - Trace contour line between two different points

  - by Graham

  Hi, I have a set of points represented as a 2 row by n column matrix. These points make up a connected boundary or edge. I require a function that traces this contour from a start point P1 and stop at an end point P2. It also needs to be able trace the contour in a clockwise or anti-clockwise direction. I was wondering if this can be achieved by using some of matlabs functions. I have tried to write my own function but this was riddled with bugs and I have also tried using bwtraceboundary and indexing however this has problematic results as the points within the matrix are not in the order that create the contour. Thank you in advance for any help. Btw, I have included a link to a plot of the set of points. It is half the outline of a hand. The function would ideally trace the contour from ether the red star to the green triangle. Returning the points in order of traversal.

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• how does one _model_ data from relational databases in clojure ?

  - by sandeep

  I have asked this question on twitter as well the #clojure IRC channel, yet got no responses. There have been several articles about Clojure-for-Ruby-programmers, Clojure-for-lisp-programmers.. but what is the missing part is Clojure for ActiveRecord programmers . There have been articles about interacting with MongoDB, Redis, etc. - but these are key value stores at the end of the day. However, coming from a Rails background, we are used to thinking about databases in terms of inheritance - has_many, polymorphic, belongs_to, etc. The few articles about Clojure/Compojure + MySQL (ffclassic) - delve right into sql. Of course, it might be that an ORM induces impedence mismatch, but the fact remains that after thinking like ActiveRecord, it is very difficult to think any other way. I believe that relational DBs, lend themselves very well to the object-oriented paradigm because of them being , essentially, Sets. Stuff like activerecord is very well suited for modelling this data. For e.g. a blog - simply put class Post < ActiveRecord::Base has_many :comments end class Comment < ActiveRecord::Base belongs_to :post end How does one model this in Clojure - which is so strictly anti-OO ? Perhaps the question would have been better if it referred to all functional programming languages, but I am more interested from a Clojure standpoint (and Clojure examples)

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• Where is rebol fill-pen documented (to get glow effect on a round rectangle) ?

  - by Rebol Tutorial

  There is some discussion here about fill-pen http://www.mail-archive.com/[email protected]/msg02019.html But I can't see documentation about cubic, diamond, etc... effect for fill-pen in rebol's official doc ? I'm trying to draw some round rectangle with glowing effect but don't really understand the parameters I'm playing with so I can't get exactly what I'd like (I'd like the glow effect starting from the center not from the dark left top corner): view layout [ box 278x185 effect [ ; default box face size is 100x100 draw [ anti-alias on ; information for the next draw element (not required) line-width 2.5 ; number of pixels in width of the border pen black ; color of the edge of the next draw element ; fill pen is a little complex: ;fill-pen 10x10 0 90 0 1 1 0.0.0 255.0.0 255.0.255 fill-pen radial 20x20 5 55 5 5 10 0.0.0 55.0.5 55.0.5 ; the draw element box ; another box drawn as an effect 15 ; size of rounding in pixels 0x0 ; upper left corner 278x170 ; lower right corner ] ] ]

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• strcmp() but with 0-9 AFTER A-Z? (C/C++)

  - by Aaron

  For reasons I completely disagree with but "The Powers (of Anti-Usability) That Be" continue to decree despite my objections, I have a sorting routine which does basic strcmp() compares to sort by its name. It works great; it's hard to get that one wrong. However, at the 11th hour, it's been decided that entries which begin with a number should come AFTER entries which begin with a letter, contrary to the ASCII ordering. They cite the EBCDIC standard has numbers following letters so the prior assumption isn't a universal truth, and I have no power to win this argument... but I digress. Therein lies my problem. I've replaced all appropriate references to strcmp with a new function call nonstd_strcmp, and now need to implement the modifications to accomplish the sort change. I've used a FreeBSD source as my base: http://freebsd.active-venture.com/FreeBSD-srctree/newsrc/libkern/strncmp.c.html if (n == 0) return (0); do { if (*s1 != *s2++) return (*(const unsigned char *)s1 - *(const unsigned char *)(s2 - 1)); if (*s1++ == 0) break; } while (--n != 0); return (0); I guess I might need to take some time away to really think about how it should be done, but I'm sure I'm not the only one who's experienced the brain-deadness of just-before-release spec changes.

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• How to resolve the only ImagePicker control view in landscap mode and whole application in portrait mode?

  - by Wolvorin

  I have tried almost all the answers during last two days provided by Google and SO but no luck :( What I want is my whole application is in portrait mode only. And it working fine in ios 6+. The only support required at now. But the problem is I need to launch UIImagePickerViewController with image source type camera in only landscap mode. What I tried till now is : (1) I try to create one category for UIImagePickerController for orientation. -(BOOL)shouldAutorotate { return NO; } -(NSUInteger)supportedInterfaceOrientations { return UIInterfaceOrientationMaskLandscape; } - (UIInterfaceOrientation)preferredInterfaceOrientationForPresentation { return UIInterfaceOrientationLandscapeLeft; } Like this. But the camera view is not proper aligned. It just follows the orientation of device with some +/- 90 angle but not what I required. Even the button of the camera shown by camera view as camera control is also follows the camera view, ie. the view is rotated to 90 anti clock vise and stays to that way. Is there any way to use the camera with proper alignment? or have to use other framework to work with it? Please help me. I stuck with it for last two days.

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• Integration testing - can it be done right?

  - by Max

  I used TDD as a development style on some projects in the past two years, but I always get stuck on the same point: how can I test the integration of the various parts of my program? What I am currently doing is writing a testcase per class (this is my rule of thumb: a "unit" is a class, and each class has one or more testcases). I try to resolve dependencies by using mocks and stubs and this works really well as each class can be tested independently. After some coding, all important classes are tested. I then "wire" them together using an IoC container. And here I am stuck: How to test if the wiring was successfull and the objects interact the way I want? An example: Think of a web application. There is a controller class which takes an array of ids, uses a repository to fetch the records based on these ids and then iterates over the records and writes them as a string to an outfile. To make it simple, there would be three classes: Controller, Repository, OutfileWriter. Each of them is tested in isolation. What I would do in order to test the "real" application: making the http request (either manually or automated) with some ids from the database and then look in the filesystem if the file was written. Of course this process could be automated, but still: doesn´t that duplicate the test-logic? Is this what is called an "integration test"? In a book i recently read about Unit Testing it seemed to me that integration testing was more of an anti-pattern?

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• CentOS 5.5 : Postfix, Dovecot & MySQL

  - by GruffTech

  I'm hoping someone has seen this issue before because I'm at quite a loss. We're building a new outbound smtp server for our clients that features anti-spam scanning and virus scanning for outbound emails, something we had not previously done. So with CentOS 5.5 x64, Installed and patched completely. Postfix & Dovecot both installed via base repo. [grufftech@outgoing postfix]# rpm -qa | grep postfix postfix-2.3.3-2.1.el5_2 [grufftech@outgoing postfix]# rpm -qa | grep dovecot dovecot-1.0.7-7.el5 [grufftech@outgoing ~]# dovecot --build-options Build options: ioloop=poll notify=inotify ipv6 openssl SQL drivers: mysql postgresql Passdb: checkpassword ldap pam passwd passwd-file shadow sql Userdb: checkpassword ldap passwd prefetch passwd-file sql static /etc/dovecot.conf auth default { mechanisms = plain login digest-md5 cram-md5 passdb sql { args = /etc/dovecot-mysql.conf } userdb sql { args = /etc/dovecot-mysql.conf } userdb prefetch { } user = nobody socket listen { master { path = /var/run/dovecot/auth-master mode = 0660 user = postfix group = postfix } client { path = /var/spool/postfix/private/auth mode = 0660 user = postfix group = postfix } } } All the server is doing is auth for postfix, so no reason to have imap / pop / dict. /etc/dovecot-mysql.conf driver = mysql connect = host=10.0.32.159 dbname=mail user=****** password=******** default_pass_scheme = plain user_query = select 1 password_query = select password from users where username = '%n' and domain = '%d' So drop in my configuration, (which is working on another server identical to this one.) [grufftech@outgoing ~]# /etc/init.d/dovecot start Starting Dovecot Imap: [ OK ] Sweet. Booted up nicely, thats good.... (incoming problem in 3....2....1....) May 21 08:09:01 outgoing dovecot: Dovecot v1.0.7 starting up May 21 08:09:02 outgoing dovecot: auth-worker(default): mysql: Connect failed to 10.0.32.159 (mail): Can't connect to MySQL server on '10.0.32.159' (13) - waiting for 1 seconds before retry well what the crap. went and checked permissions on my MySQL database, and its fine. [grufftech@outgoing ~]# mysql vpopmail -h 10.0.32.159 -u ****** -p Enter password: Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 127828558 Server version: 4.1.22 Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql>\q So! My server can talk to my database server. but dovecot, for whatever reason, isn't able to. I've fiddled with it for the last six hours, grabbed slightly-older copies of the RPM (ones that matched our production server exactly) to test those, copied configs, searched google, searched server fault, chatted in IRC, banged my head against the table, I've done it all. Surely I'm doing something wrong or forgetting something, can anyone tell me what the elephant in the room is? This stuff is supposed to work.

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• [Windows 7] Certain Programs cannot access internet

  - by Cindy

  Operating System: Windows 7 (x64) Problem: Certain Programs are unable to access the internet. They claim that there is no connection when you already are connected. Hello, before we start. Just letting you know I'm new here, and I'm very new to Windows 7. I installed it two days ago. I just installed Windows 7 on my laptop and I have a few problems. I play World of Warcraft, as well as a variety of games. And when I first attempt to log into the game, I get a windows error message, but it doesn't stop there. I thought World of Warcraft got corrupted during the upgrade. It seems that I am unable to access the internet from other online games as well. Most say in along the lines of "Cannot connect to patch server, try again later." I cannot use a downloader Also, I have internet explorer. The x32 version of the browser cannot connect to the internet, and when I try to enter "google.com", it says the same thing. I'm only accessing this site through Internet Explorer x64, which I would have been fine with is it's compatible with Adobe Flash. The only thing that seems to connect to the internet are Internet Explorer x64 and Windows Live Messenger. Here are the steps I have taken, but none worked. 1.) Disable Windows Firewall 2.) Have Windows Firewall Enabled, but allow the specific programs to access internet. And allowed all incoming access. 3.) Disabled UAC, Ran the programs as an admin, and set compatibility to Vista. 4.) Uninstalled an anti-virus program. (McAffee Security Suite 2010) 5.) Reinstalled the programs 6.) Reinstalled Windows 7 7.) Retaken the steps on the Administrator account. Please assist me in this problem. I need to get back into the game. Thanks so much in advance.

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• Why is 50.22.53.71 hitting my localhost node.js in an attempt to find a php setup

  - by laggingreflex

  I just created a new app using angular-fullstack yeoman generator, edited it a bit to my liking, and ran it with grunt on my localhost, and immediately upon starting up I get this flood of requests to paths that I haven't even defined. Is this a hacking attempt? And if so, how does the hacker (human or bot) immediately know where my server is and when it came online? Note that I haven't made anything online, it's just a localhost setup and I'm merely connected to the internet. (Although my router does allow 80 port incoming.) Whois shows that the IP address belongs to a SoftLayer Technologies. Never heard of it. Express server listening on 80, in development mode GET / [200] | 127.0.0.1 (Chrome 31.0.1650) GET /w00tw00t.at.blackhats.romanian.anti-sec:) [404] | 50.22.53.71 (Other) GET /scripts/setup.php [404] | 50.22.53.71 (Other) GET /admin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /admin/pma/scripts/setup.php [404] | 50.22.53.71 (Other) GET /admin/phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /db/scripts/setup.php [404] | 50.22.53.71 (Other) GET /dbadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /myadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /mysql/scripts/setup.php [404] | 50.22.53.71 (Other) GET /mysqladmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /typo3/phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpmyadmin1/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpmyadmin2/scripts/setup.php [404] | 50.22.53.71 (Other) GET /pma/scripts/setup.php [404] | 50.22.53.71 (Other) GET /web/phpMyAdmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /xampp/phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /web/scripts/setup.php [404] | 50.22.53.71 (Other) GET /php-my-admin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /websql/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpmyadmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin-2/scripts/setup.php [404] | 50.22.53.71 (Other) GET /php-my-admin/scripts/setup.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin-2.5.5/index.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin-2.5.5-pl1/index.php [404] | 50.22.53.71 (Other) GET /phpMyAdmin/ [404] | 50.22.53.71 (Other) GET /phpmyadmin/ [404] | 50.22.53.71 (Other) GET /mysqladmin/ [404] | 50.22.53.71 (Other)

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• Certain clients (IP range) can not ping server

  - by Logman

  I just virtualized a Windows 2003 Server SP2 x32. The server contained our help desk server (Spiceworks) and our anti virus management server (ESET RAC). The host computer actually contained the virtualized server originally; I created the vhd and then I wiped this system clean and installed Windows 2008 R2 x64 Datacenter and added the virtualized 2003 onto the Hyper-V 2008 R2 Server. I got the server running fine except for... certain ip ranges. Local clients can get updates from the AV server from my 192.168.180.xxx & 192.168.181.xxx BUT NOT from any 192.168.182.xxx, 192.168.183.xxx, 192.168.184.xxx etc... I can not ping the server from any clients except for the 180. & 181. ranges. Now I created 2 other virtualized servers (win2008 & a win7 pro) and they exist on the same virtual host as the 2003 server. And at first I could not ping those until I went to the "\Network and Sharing Center\Advanced sharing settings" and Turned On File and Print Sharing. Then I could ping and access those virtualized guests. Win2003 server isn't quite the same. But I am sure I have it on. But now when I ping from a client on one of those ranges that would not work I get this: As you can see the ping leaves our network. We have 2 ad/dns servers (one 180. & the other in the 181. range). Is it DNS? Both AD/DNS servers are Windows 2003. And we plan on upgrading both to 2008 R2 within a month or two but I need to fix this issue pronto (esp the AV end). btw, I did rename that 2003 Server (Spiceworks/AV) hostname. And I tried a CNAME. But I do not think that is the problem. EDIT: OR because this server existed on this hardware/computer before becoming virtualized?

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• Email delivery management grievances

  - by joxl

  The question I have may be more of principle than anything else, but here's my dilemma. I manage an email system for a small company (about 20 email users). We own a plain-letter .com domain name through Network Solutions. Our email service is hosted by Google Apps. Recently (Feb. 2011) we've been having customers report that they aren't getting our emails. Upon further investigation it seems that the failed emails are all to a common (well known) domain. We have not received any bounce messages for the emails. We've also contacted a few of the intended recipients, who have reported that the messages are not in their spam box; they simply did not receive anything. In these cases we re-sent the same email to an alternate address on another domain, which was successful received. One customer contacted their email provider about the issue. The provider recommended that we submit a form to be white-listed by their domain. Here's where my problem begins. I feel like this is heading down a slippery slope. Doesn't this undermine the very principle of email? If this is the appropriate action to take in these situations where will it end? In theory (following this model) it could be argued that eventually one will first need to "whitelist" (or more appropriately termed "authenticate") themselves with an email host before actually sending any messages. More to this point, what keeps the "bad" spammers from doing the same thing...? We've just gone full circle. I know avoiding anti-spam measures is a big cat-and-mouse game, but I think this is the wrong way of "patching" the problem. Email standards say that messages should not just disappear silently. I have a problem supporting a model that says "you must do < this to make sure your emails aren't ignored". I have a notion to call the provider and voice my complaint, although I have a feeling it will probably fall on deaf ears. Am I missing something here? Is this an acceptable approach to email spam problems? What should I do?

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• CPU Lockup when loading folder of bookmarks in Firefox

  - by Gary M. Mugford

  I am running Firefox 3.6 on WinXPSP3 on a duo Core machine with 4G of memory. I am also running Avast! free anti-virus and ZoneAlarm free firewall, both latest versions. Within the last month, my service provider basically forced me to upgrade to a Docsis 3.0 compliant modem (offered me a deal I couldn't turn down). At that point, I also upgraded to FF3.6. Basically, I am not unhappy with many aspects of this switchover, EXCEPT, when I now load a folder of bookmarks (anywhere from 10 to 38) I get nothing like the load times I experienced a couple of months back. It's taking minutes rather than seconds. And the first bookmark in one of the folders, GMail, rarely loads before timing out. I have used the old trick of powering off the cable modem before my day's work. This used to fix 'load-lag' in the old days. I have switched from my ISP's DNS server to Google, OpenDNS and back. And nothing seems to work currently. It's not my DNS cache. That's been flushed and secondary computers also have the same issue when loading folders. I have watched the CPU usage and loading the folder will send VSMon (ZoneAlarm) usage over 40 percent, AVastSvc (Avast!) over 30 and Firefox will then push the needle to 100. There's a brief burst by SVCHost when the others falter in devouring cycles. Then everything subsides to single digits once the last tab is loaded. The only other nominal nastiness is VSMon ALWAYS hitting 50 percent when ANY program starts downloading content from the internet. If I shutdown ZoneAlarm (and VSMon with it), the same slow loading takes place, but this time System is running 50% plus, again driving the usage to 100 per cent. I have my doubts FF3.6 vs FF3.5 is an issue, since the other computers are still running 3.5 and suffer the same issue. Those computers are on, but inactive, most of the time, being backups. Obviously, when the CPU hits 100, I can't do much of anything in FireFox OR in other programs. Video play through WMPC or VLC is extremely choppy, although it doesn't seem to affect the audio. Any ideas what I can try next? Thanks, GM

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• Windows cannot find the host name "download.microsoft.com" using DNS

  - by joedotnot

  When trying to download a file found on the Microsoft downloads center that starts with, for example, http://download.microsoft.com/download/6/8/7/(some_GUID)/(some_file_name.ext) i get a timeout with "Internet Explorer cannot display the webpage". More information says: Internet connectivity has been lost. The website is temporarily unavailable. The Domain Name Server (DNS) is not reachable. The Domain Name Server (DNS) does not have a listing for the website's domain. If this is an HTTPS (secure) address, click Tools, click Internet Options, click Advanced, and check to be sure the SSL and TLS protocols are enabled under the security section. Diagnose Connection problems says: Windows cannot find the host name "download.microsoft.com" using DNS Bear with me while i expand on the problem: It all started when i tried to download Windows XP mode for my Windows 7 machine. I went to the virtual PC site, then thru the motions of Windows Genuine Advantage which validated ok, but when it redirects to grab the file just times out with above error. (NB: i also tried with the latest Chrome and Firefox but no use due to the Genuine Advantage stuff, so i decided to stick with IE). I am behind an ADSL2+ modem router connecting via wireless (Win 7 Pro laptop); so i hop over to the desktop connected via ethernet (Vista Business), and same result; begin to think site download.microsoft.com site is down. So i give it a break an read up on EDNS, flushing the cache, hosts file, etc... Try again an hour later on the Win 7 machine, still no go; so i turn off the Win 7 (software) firewall, and lo and behold, i can connect and grab any files from download.microsoft.com; (...nice, so we have a Micro$0ft firewall preventing access to a Micro$0ft website, no wonder my auto-updates kept failing but that's another story). But i still am not happy that the desktop connected via ethernet still cannot get to download.microsoft.com, even though i turned off all firewalls, defenders, anti-virus, etc. What is so special / specific about the url download.microsoft.com, any other site is ok, including www.microsoft.com. Any networking guru know what's REALLY going on, and how can i get the desktop to connect? Ping download.microsoft.com - Ping request could not find host download.microsoft.com. Please check the name and try again. Ping google.com or even www.microsoft.com works gives me an IP address. NB: On the wireless laptop ping download.microsoft.com works, i get xxxx.ms.akamai.net [202.7.177.33].

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• Certain Programs cannot access internet

  - by Cindy

  Operating System: Windows 7 (x64) Problem: Certain Programs are unable to access the internet. They claim that there is no connection when you already are connected. Hello, before we start. Just letting you know I'm new here, and I'm very new to Windows 7. I installed it two days ago. I just installed Windows 7 on my laptop and I have a few problems. I play World of Warcraft, as well as a variety of games. And when I first attempt to log into the game, I get a windows error message, but it doesn't stop there. I thought World of Warcraft got corrupted during the upgrade. It seems that I am unable to access the internet from other online games as well. Most say in along the lines of "Cannot connect to patch server, try again later." I cannot use a downloader Also, I have internet explorer. The x32 version of the browser cannot connect to the internet, and when I try to enter "google.com", it says the same thing. I'm only accessing this site through Internet Explorer x64, which I would have been fine with is it's compatible with Adobe Flash. The only thing that seems to connect to the internet are Internet Explorer x64 and Windows Live Messenger. Here are the steps I have taken, but none worked. 1.) Disable Windows Firewall 2.) Have Windows Firewall Enabled, but allow the specific programs to access internet. And allowed all incoming access. 3.) Disabled UAC, Ran the programs as an admin, and set compatibility to Vista. 4.) Uninstalled an anti-virus program. (McAffee Security Suite 2010) 5.) Reinstalled the programs 6.) Reinstalled Windows 7 7.) Retaken the steps on the Administrator account. Please assist me in this problem. I need to get back into the game. Thanks so much in advance.

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• IE8 Refuses to run Javascript from Local Hard Drive

  - by Josh Stodola

  I have a problem that just started at work recently and the network manager is certain he did not change anything with the group policy. Anyways, here is a detailed description of the problem. My machine is Windows XP SP3, and I use IE8 to browse. We have McAffee anti-virus software that I am unable to configure. I use the following file to test... <!DOCTYPE html> <html> <head> <title>Javascript Test</title> </head> <body> <script type="text/javascript"> document.write("<h1>PASS</h1>"); </script> <noscript> <h1>FAIL</h1> </noscript> </body> </html> When I open this file from the C: drive, it fails every time. If I execute it anywhere else (local/remote web server or on a mapped network drive), it works just fine. When I am simply browsing the Internet, Javascript on web sites works just fine. It is only failing on files running from my C: drive. Additionally, I have had a couple other programmers in the department try this file on their C: drive, and it works fine for them. So I don't believe it is a group policy thing. I need to fix this because I do extensive testing from my C: drive, and I am accustomed to doing so. I don't want to get into the habit of moving files to a different drive just to test. Things I have tried: Enabled "Allow Active Content to Run Files on My Computer" in Options | Advanced | Security Enabled "Allow Active Scripting" in Options | Security | Custom Level Verified that "Script" was not checked as disabled in Developer Toolbar Added localhost to Trusted Sites in Options Disabled McAffee completely (momentarily, with help from network admin) Used an older DOCTYPE in my test HTML page Re-installed IE8 completely Ran regsvr32 on the JScript.dll Slammed keyboard I am sure that there is a setting somewhere that will fix this problem, possibly in the registry. I would not be surprised if it was related to the developer toolbar. At this point I do not know where else to look. Can anyone help me resolve this problem? EDIT: Regardless of the bounty, this issue is still ongoing.

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• Why might one host be unable to access the Internet, when it can ping the router and when all other hosts can?

  - by user1444233

  I have a Draytek Vigor 2830n. It's kicking out a 192.168.3.0 LAN. It performs load-balancing across dual-WAN ports, although I've turned off the second WAN to simplify testing. There are many hosts on the LAN. All IPs are allocated through DHCP, most freely allocated from the pool, but one or two are bound to NIC MAC addresses. All hosts can access the Internet, save one. That host (192.168.3.100 or 'dot100' for short) gets allocated an IP address (and the right gateway address, DNS server addresses, subnet etc.) dot100 can ping itself. It can ping the gateway, and access the latter's web interface via port 80. It's responsive and loss-free (sustained ping over a couple of minutes reports no data loss). Yet, for some reason that evades me, dot100 can't ping an external IP address or domain name. I suspect it's never been able to, because it was getting some Internet access from a second adaptor (different subnet), but that's now been turned off, which exposed the problem. In dot100, I've tried: two operating systems (Windows 8 and Knoppix), to rule out anti-virus programs etc. two physical adaptors two cables, on each adaptor two IPs (e.g. .100 and .103 assigned by Mac and .26 from the pool) both dynamic and assigned (MAC-bound) DHCP-allocated IPs but none of this experiments yielded any variation in the result. dot100 is a crucial host. It's a file server for the network, so I need it to be reliably allocated a consistent IP. Can anyone offer a potential solution or a way forward with the analysis please? My guess My analysis so far leads me to believe it's a router issue. I've checked the web interface very carefully. There are no filters setup in Firewall - General Setup or Filter Setup. I suspect it's a corrupted internal routing table, but the web UI shows this as the Routing table: Key: C - connected, S - static, R - RIP, * - default, ~ - private * 0.0.0.0/ 0.0.0.0 via 62.XX.XX.X WAN1 * 62.XX.XX.X/ 255.255.255.255 via 62.XX.XX.X WAN1 S 82.YY.YYY.YYY/ 255.255.255.255 via 82.YY.YYY.YYY WAN1 C 192.168.1.0/ 255.255.255.0 directly connected WAN2 C~ 192.168.3.0/ 255.255.255.0 directly connected LAN2

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• Windows 7, weird/annoying explorer problem

  - by Shiki

  First of all, I'm asking the moderators if you could summarize my problem in the Title and modify it according to that. Thanks in advance and sorry, my english is not that good. The problem. It happened on two of my machines already. Once it happens there are many problems with explorer. I'll try to describe at precisely I just can. So. Basically when you create a new folder, you have to hit the enter key TWICE because first it'll throw an error that "there is no such file..". Okay. Then if you try to delete some, this happens also. Renaming is the same. Here is an example. I tried adding a "2" to the end of the folder name, hit enter and got this. Here I can press cancel, nothing happens. If I press retry, the popup disappears and it'll finally change the folder name. I can't come up with anything for this. Using BitDefender (registered, full protection), Windows 7 x86 Ultimate retail (boxed, english version). The other PC had the same anti-virus protection , but it have a Windows 7 x64. Both systems are activated, updated totally. I don't remember installing any new stuff on the PCs. All the stuff on the PCs are legal, no cracked / any other software present. It just happened, so to say. Already reinstalled the other PC because I thought * I * messed up something and its just something FUBAR. However, I dont want to reinstall my laptop also. Any ideas are welcome. (Today I had a strange bug. Windows Explorer had 1.0+gb memory usage with 100% cpu. Killed it, launched a new explorer.exe and thats all. Nothing changed, but it may worth a try. The other PC did NOT have this problem, ever.) Isn't there a registry fix for this or something? :/

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• Wireless Network Performance Issues

  - by colithium

  My brand new Dell XPS system has been running flawlessly except its abysmal download speeds. I have tried isolating every variable I could possibly think of but I can't figure out the problem. I've talked to Dell and Belkin without making progress (thought I'd try). Here are the speeds: Note that most of the time, upload speeds are actually much faster than download speeds (around 4.0 Mb/s which is better than most other devices on the network) It's not the ISP. The slowdown happens even when transferring files inside the network. Plus every other wireless device gets approximately this: It's not the wireless router. It's a Lynksis WRT160N v1 with the latest firmware (1.02.2). Plus everything else connected to it has normal speeds. It's not the browser. Speeds are the same in IE, FF, and when transferring files with Windows between computers. It's not the wireless adapter. I've tried a Belkin N Wireless USB Adapter (which works fine on another computer) and a Dell Wireless Draft 802.11n WLAN Mini-Card. They have the same slow speeds when connected to the problem computer. It's not the adapter connection. One adapter used USB and the other is a Mini-Card. It's not antenna placement. With the same antenna position and the same device, I get different speeds when connected to the problem computer vs a good computer. Plus everything reports the connection speed as at least 11Mbps and good signal strength. I've tried disabling IPv6 since it sometimes causes weird problems. I've tried disabling Windows Firewall/anti-virus. I've ensured the computer has updated drivers for both adapters. I've ensured that Windows is up to date and so is the BIOS. For the USB adapter I ensured that that USB port functioned at normal speeds with other USB devices. What else could it possibly be? I finally received my copy of Windows 7 and will be trying that. I'd rather not install Windows 7 because of a particular program that will stop working so a solution besides that is welcome. Specs: Vista x64 Core i7 920 6GB RAM 500GB HD GTX 260

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• Monitoring the status of accounts with IT Service providers (ISP, Domain Registrar etc.)

  - by Sholom

  Hi All, Short version: You have software that tells you when your servers power-outlet is down. It monitors multiple servers from one management console, alerts you when something is wrong etc. Does anyone know of software that will let me take the same approach to monitor if the money-outlet (the bill!) is down (not paid) to my IT Services providers (ISP, Domain Registrar, MX Backup service etc). I need a top down, centrally managed service that is capable of sending out alerts. Just like the one that monitors my own exchange server etc. I don't mind if i have to manually enter every payment. Long version: Our very likable but absent minded bookkeeper keeps neglecting to pay our IT vendors on time. Just this past week our internet service was disconnected. Same could happen to many other mission critical accounts (domain registrar, backup MX, anti-virus license, HackerSafe (McAfee secure) service and even an 800 number to name a few). As the sysadmin, i monitor my severs to make sure they are plugged into the power-outlet. I believe i should also monitor my services to make sure they are plugged in to their money-outlet. To compound the problem, when the power goes out someone else will likely notice and notify me. But if a bill is not payed, no one will ever notice until service is lost. Lost as in losing our domain name which would cause a lot more damage then the power failing on our server. [Solution] = [Doesn't work because]: Retrain the bookkeeper = Wishful thinking. Notify my manager = Already have (via email). Protects me, does not solve problem. Fire bookkeeper = What makes you so sure the next one will never forget? Bottom line: Humans are humans and sooner or later something critical will be royally messed up. We need to partner with a machine to help us out here. Anybody have the same problem? What software/solution do you use? I would like software that emails me when a bill is passed due just like i get an email when the power outlet fails. Anyone hear of anything like that? Thanks

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