Search Results

Search found 26523 results on 1061 pages for 'jack back'.

Page 551/1061 | < Previous Page | 547 548 549 550 551 552 553 554 555 556 557 558  | Next Page >

• Sound not working after installing PCI video card and then removing it

  - by bakhshu

  I am running 11.10 on a HP/Compaq Presario sr1010z, and the video/audio was working fine with whatever was in the machine already. Then I installed a new video card (PCI/nVidia), which disabled the audio/video on the old one automatically. But that card didn't work out too well so I removed it. Now the video is back to normal, but the audio is gone. I have tried the following: 1. In BIOS, set audio to on/enable rather than Auto 2. Looked for hardware in System Settings Sound, but nothing shows up there 3. But when I run the sysinfo utility, I get the description of the audio controller When I do a 'sudo aplay -l', I get 'aplay: device_list:240: no soundcards found...' And then when I do a 'lspci -v | grep -A7 -i "audio"' I get the following: 00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] SiS7012 AC'97 Sound Controller (rev a0) Subsystem: Hewlett-Packard Company Device 2a05 Flags: bus master, medium devsel, latency 32, IRQ 5 I/O ports at a000 [size=256] I/O ports at a400 [size=128] Capabilities: 00:03.0 USB Controller: Silicon Integrated Systems [SiS] USB 1.1 Controller (rev 0f) (prog-if 10 [OHCI]) Any ideas on how to fix this? Thanks

  Read the article

• Learning good OOP design & unlearning some bad habits

  - by Nick

  I have been mostly a C programmer so far in my career with knowledge of C++. I rely on C++ mostly for the convenience STL provides and I hardly ever focus on good design practices. As I have started to look for a new job position, this bad habit of mine has come back to haunt me. During the interviews, I have been asked to design a problem (like chess, or some other scenario) using OOP and I doing really badly at that (I came to know this through feedback from one interview). I tried to google stuff and came up with so many opinions and related books that I don't know where to begin. I need a good through introduction to OOP design with which I can learn practical design, not just theory. Can you point me to any book which meets my requirements ? I prefer C++, but any other language is fine as long as I can pick-up good practices. Also, I know that books can only go so far. I would also appreciate any good practice project ideas that helped you learn and improve your OOP concepts. Thanks.

  Read the article

• how can i cahe one more web site on same backend server (web server) with varnish?

  - by Kerberos

  i have one web server which is IIS that is back on varnish. there are more web sites on ISS. there are all web sites header's on IIS and all web sites publish from port 80. can i cache all web site by varnish like below code;backend cacheWebSite{.host = "192.168.0.1"; .port = "80";} sub vcl_recv {if (req.http.host == "www.example1.com") {set req.backend = CacheWebSites;} if (req.http.host == "www.example2.com") {set req.backend = CacheWebSites; } if (req.http.host == "www.example3.com") {set req.backend = CacheWebSites; }} i can't test this code. that is just senario. thank you for your help already now.

  Read the article

• ip routes to specific interface

  - by user65053

  I am trying to figure out how to get all traffic to 10.8.78.* to connect using interface ppp0 when available how would I properly handle this (centos) and can I fall back on eth0 when pp0 is not up? /sbin/route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 69.19.219.69 0.0.0.0 255.255.255.255 UH 0 0 0 ppp0 10.0.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 10.0.1.1 0.0.0.0 UG 0 0 0 eth0

  Read the article

• How to keep track of previous scenes and return to them in libgdx

  - by MxyL

  I have three scenes: SceneTitle, SceneMenu, SceneLoad. (The difference between the title scene and the menu scene is that the title scene is what you see when you first turn on the game, and the menu scene is what you can access during the game. During the game, meaning, after you've hit "play!" in the title scene.) I provide the ability to save progress and consequently load a particular game. An issue that I've run into is being able to easily keep track of the previous scene. For example, if you enter the load scene and then decide to change your mind, the game needs to go back to where you were before; this isn't something that can be hardcoded. Now, an easy solution off the top of my head is to simply maintain a scene stack, which basically keeps track of history for me. A simple transaction would be as follows I'm currently in the menu scene, so the top of the stack is SceneMenu I go to the load scene, so the game pushes SceneLoad onto the stack. When I return from the load scene, the game pops SceneLoad off the stack and initializes the scene that's currently at the top, which is SceneMenu I'm coding in Java, so I can't simply pass around Classes as if they were objects, so I've decided implemented as enum for eac scene and put that on the stack and then have my scene managing class go through a list of if conditions to return the appropriate instance of the class. How can I implement my scene stack without having to do too much work maintaining it?

  Read the article

• Identity Management: The New Olympic Sport

  - by Naresh Persaud

  How Virgin Media Lit Up the London Tube for the Olympics with Oracle If you are at Open World and have an interest in Identity Management, this promises to be an exciting session. Wed, October 3rd Session CON3957: Delivering Secure Wi-Fi on the Tube as an Olympics Legacy from London 2012 Session Time: 11:45am-12:45pm Session Location: Moscone West L3, Room 3003 Speakers: Perry Banton - IT Architect, Virgin Media                    Ben Bulpett - Director, aurionPro SENA In this session, Virgin Media, the U.K.'s first combined provider of broadband, TV, mobile, and home phone services, shares how it is providing free secure Wi-Fi services to the London Underground, using Oracle Virtual Directory and Oracle Entitlements Server, leveraging back-end legacy systems that were never designed to be externalized. As an Olympics 2012 legacy, the Oracle architecture will form a platform to be consumed by other Virgin Media services such as video on demand. Click here for more information.

  Read the article

• Truecrypt in place decryption. Is this possible?

  - by Keyo

  I want to decrypt my entire partition and turn it back into standard NTFS. I encrypted a large partition on my 1TB drive before I took it through the airport. For this I used the in place method on truecrypt for win7. I'm on a mac now and there doesn't seem to be any way to decryppt the drive in place. It mounts fine, but I don't want to buy another drive just so I can shift files around. The drive is hooked up via USB. Would this be a problem?

  Read the article

• How to implement smart card authentication with a .NET Fat client?

  - by John Nevermore

  I know very little about smart card authentication in general so please point out or correct me if anything below doesn't make sense. Lets say i have: A Certificate Authority "X"-s smart card (non-exportable private key) Drivers for that smart card written in C A smart card reader CA-s authentication OCSP web service A requirement to implement user authentication in a .NET fat client application via a smart card, that was given out by the CA "X". I tried searching info on the web but no prevail. What would the steps be ? My first thought was: Set up a web service, that would allow saving of (for example) scores of a ping pong game for each user. Each time someone tries to submit a score via the client application, he can only do so by inserting the smart card into the reader. Then the public key is read from the smart card by native c calls through .NET and sent to my custom web service, which in return uses the CA-s authentication OCSP web service to prove the validity of the public key/public certificate (?). If the public key is okay and valid, encrypt a random sequence of bytes with the public key and send it to the client application. If the client application sends back the correctly decrypted random sequence of bytes along with the score of the ping pong game, then the score is saved in the database for the given user. My question is, is this the correct way to do it ? What else should i know about smart card authentication ?

  Read the article

• Putting DSMD into Remission

  - by Justin Greenwood

  As a programmer with over ten years of professional experience, I've often suffered from DSMD (distraction surplus/motivation deficit) disorder. I know I'm not alone. Many of my colleagues have shared their experiences with this productivity cancer to me in support groups or in moments of inebriated intimacy. Often, I observe friends unknowingly surrendering to it - sitting at their computer, cycling through the same set of web sites (blogs, facebook, youtube, news providers, wikipeida, etc.), over and over again. Intermittently, they get up, take a walk around the office, make small talk with their colleagues, get another cup of coffee, then sit down and start the cycle all over again. It is completely controlled by the subconscious mind and will destroy your ability to get into that groove you used to live in back in your better days. Programming requires extended periods of focused attention, and this type of behavior will really kill productivity and in the end, when deadlines are near, launch your stress level to near emotional breakdown levels.DiagnosisThe best way to diagnose infection is to completely disconnect your devices from the internet while working. If you find yourself launching web browsers every minute or so, then you're down with the sickness.TreatmentA few techniques I've found that will help send this ailment into regression are as follows:Segment your day into two to three hour work segments. For example: 9:00-11:00, 1:00-3:00, 3:30-5:00.Define a few small one to two hour tasks you want to accomplish in your day. Assign each of those tasks to one of the short work segments.If possible, turn off the internet and any other distractions during these work segments (at least until you regain control of your browsing habits) - this includes instant messaging and email. You can check your email and waste time surfing in the hours between work segments.Reward yourself on productive days with a beer or whatever butters your muffins.

  Read the article

• Import Java Trusted Certificate to JRE

  - by Zalastax

  I need to install a certificate from a Java app to a lot of people. I want to use a one click program or batch file to import it as a Trusted Certificate(in Control Panel-Security-Certificate). Then they won't need to press always allow first time they use the application. I have extracted the needed certificate as both a .csr and as a .cer (the .csr via Control Panel and the .cer via keytool). Now I need to get one of them back without any clicking in menus. I don't really understand the documentation of importing .cer with keytool and would like an example. Or are there an easier way than using keytool?

  Read the article

• Smooth waypoint traversing

  - by TheBroodian

  There are a dozen ways I could word this question, but to keep my thoughts in line, I'm phrasing it in line with my problem at hand. So I'm creating a floating platform that I would like to be able to simply travel from one designated point to another, and then return back to the first, and just pass between the two in a straight line. However, just to make it a little more interesting, I want to add a few rules to the platform. I'm coding it to travel multiples of whole tile values of world data. So if the platform is not stationary, then it will travel at least one whole tile width or tile height. Within one tile length, I would like it to accelerate from a stop to a given max speed. Upon reaching one tile length's distance, I would like it to slow to a stop at given tile coordinate and then repeat the process in reverse. The first two parts aren't too difficult, essentially I'm having trouble with the third part. I would like the platform to stop exactly at a tile coordinate, but being as I'm working with acceleration, it would seem easy to simply begin applying acceleration in the opposite direction to a value storing the platform's current speed once it reaches one tile's length of distance (assuming that the tile is traveling more than one tile-length, but to keep things simple, let's just assume it is)- but then the question is what would the correct value be for acceleration to increment from to produce this effect? How would I find that value?

  Read the article

• NT4 server generate too much weird DNS queries, How can i see the source PID?

  - by Hanan N.

  I have a NT4 server that in the last two weeks started to generate too many weird DNS queries to the DNS server is set to use. I have got warnings from the IPS system that it has blocked the responses from the DNS server back to the NT4 server. The queries it generate doesn't relate to any computer in the network, it is like 120624100088.xxxxxxx.net where xxx is the internal network, the numbers are just random at each query. I have done some research on how to get the PID that is generating the queries, and i found that only Process Monitor could give me that information, but since it is NT4 system Process Monitor doesn't work on it. It is a production server and i am just can't stop services as i want. I would like to get your advice on how can i get the PID that is generating these queries? Thanks.

  Read the article

• How to query a DHCP server to get the local DNS servers

  - by Dan Berlyoung

  I have a ClarkConnect (CentOS based) box running as my home router on a RR connection. I had the DNS servers set up to use Google's DNS server. I want to change them back to the local DNS servers but I can't find an obvious/easy way to get those address short of a) reconfiguring the router's network to DHCP them (would rather not interrupt everyone) or b) calling their tech support (kill me now!). Is there a command line tool/command I can use to query the DHCP server on the external NIC to see what DNS servers it would set me up with w/o munging my existing setup?

  Read the article

• Why can't European users access my site?

  - by japancheese

  Hello, My site has been running just fine for the past couple of years, but all of a sudden, two days ago, European users have been experiencing serious connection problems to the site. I really want to fix this for them, but what's the best way to figure out what the issue is? I have absolutely no connection problems to the site on my end, nor do Asian or other American users it seems. Using just-ping.com, some European servers come back with some packet losses. I tried doing some traceroutes from European servers to my own, but they all seemed to work just fine. I'd at least like to be able to tell users that if the problem does not lie with my server, then it at least lies somewhere out of my control. I really want to figure out what the choke point is though. Is there another way I might be able to find out why they can't seem to connect to the site? Just looking for any other ideas from people that have had a similar experience.

  Read the article

• How to keep background requests in sequence

  - by Jason Lewis

  I'm faced with implementing interfaces for some rather archaic systems, for handling online deposits to stored value accounts (think campus card accounts for students). Here's my dilemma: stage 1 of the process involves passing the user off to a thrid-party site for the credit card transaction, like old-school PayPal. Step two involves using a proprietary protocol for communicating with a legacy system for conducting the actual deposit. Step two requires that each transaction have a unique sequence number, and that the requests' seqnums are in order. Since we're logging each transaction in Postgres, my first thought was to take a number from a sequence in the DB, guaranteeing uniqueness. But since we're dealing with web requests that might come in near-simultaneously, and since latency with the return from the off-ste payment processor is beyond our control, there's always the chance for a race condition in the order of requests passed back to the proprietary system, and if the seqnums are out of order, the request fails silently (brilliant, right?). I thought about enqueuing the requests in Redis and using Resque workers to process them (single worker, single process, so they are processed in order), but we need to be able to give the user feedback as to whether the transaction was processed successfully, so this seems less feasible to me. I've tried to make this application handle concurrency well (as much as possible for a Ruby on Rails app), but now we're in a situation where we have to interact with a system that is designed to be single process, single threaded, and sequential. If it at least gave an "out of order" error, I could just increment (or take the next value off the sequence), but it's designed to fail silently in the event of ANY error. We are handling timeouts in a way that blocks on I/O, but since the application uses multiple workers (Unicorn), that's no guarantee. Any ideas/suggestions would be appreciated.

  Read the article

• What are the options for retraining formally as a software engineer?

  - by Matt Harrison

  I'm a self-taught programmer. I have a good undergraduate degree in Architecture (building, not software). I was always a science/maths kid and got consistency good grades in these subjects. However I became indecisive at undergraduate level and switched between Physics, Chemistry, Art and finally stuck with Architecture mainly out of the desperate need to finish any degree. As soon as I graduated, I ditched architecture and started writing code again professionally. I've been a programmer now for 3 years and I've progressed very quickly. I'm ambitious and I want to work for the top companies in this field at some point and I've realised I need a Computer Science education to be taken seriously (based on job ads for the big tech firms). I've applied for a few MSc programs in Computer Science but they've all rejected me because of my BA. It's just not an option for me to quit my job and go back and do another 3 year undergraduate degree in CS. I know I can study at this level because I've read most of the books on the reading lists for CS courses in the UK that I can find and I have this knowledge now, it's just I can't prove it on an application form. What options are available to me?

  Read the article

• 12-24 rack, 10-32 server thumbscrew. How to mount?

  - by JJ.

  We have just purchased a APC rack (model AR204A) with 12-24 threaded holes. We couldn't get a "square hole" model in time for our setup deadline. Unfortunately our rack servers (Lenovo RD240) appear to have 10-32 thumbscrews for securing the server to the rack. We've successfully mounted the server rails to the rack using 12-24 screws however the 10-32 thumbscrews in the server front won't "grab" the 12-24 holes in the rack, thus there is nothing to stop the server from sliding right off the rack if pushed from the back. The thumb screws on the server don't seem to be removable, so we can't simply use 12-24 screws instead. Any suggestions on how to work around this problem? Is there any way to "convert" a 12-24 hole to a 10-32 thread (or similar approach)? Thanks in advance.

  Read the article

• NginX : Route user request to backend

  - by xperator

  The goal is to have NginX webserver act as a very basic & simple load balancer/fail-over. But instead of fetching static files from backend and serving it to user, I just want to route/redirect user request to one of the back end servers. upstream backend { server server1.example.com:80; server server2.example.com:80; server server3.example.com:80; } location / { proxy_pass http://backend; } Instead of : User request (example.com/test.file) NginX LB Backend NginX LB User I want to have : User request (example.com/test.file) NginX LB Backend User Is this even possible with NginX ? If not then How can I achieve this goal. UPDATE 1: Is there a way to use rewrite directive with backend upstream ? UPDATE 2: It's not really necessary to use NginX. I just want to have a direct reply from backend to user.

  Read the article

• Maintaining a main project line with satellite projects

  - by NickLarsen

  Some projects I work on have a main line of features, but are customizable per customer. Up until now those customizations have been implemented as preferences, but now there are 2 problems with the system... The settings page is getting out of control with features. There are probably some improvements that could be made to the settings UI, but regardless, it is quite cumbersome setting up new instances for new customers. Customers have started asking for customizations which would be more easily maintained as separate threads instead of having tons of customizations code. Optimally I am envisioning some kind of source control in which features are either in the main project line and customizations per customer are maintained in a repo per customer set up. The customizations per project would need to remain separate but if a bug is found and fixed in a particular project, I would need to percolate the fix back to the main line and into all of the other customer repos. The problem is I have never seen this done before, and before spending time trying to find source control that can accommodate this scenario and implement it, I figure it best to ask if anyone has something less complicated or knows of a source control product which can handle this with very little hair pulling.

  Read the article

• How to make the jump from consumer support to enterprise support?

  - by Zac Cramer

  I am currently a high level consumer break/fix technician responsible for about 300-400 repairs a month. I am good at my job, but bored, and I want to move into the enterprise side of my company, dealing with Server 2008 R2 and exchange and switches and routers that cost more than I make in a month. How do I make this transition? Whats the best thing to learn first? Is there a standard trajectory for making this leap from consumer to business? I am full time employed, so going back to school is not a great option, but I have no life, so spending my nights and weekends reading and practicing is totally within my realm. I am basically overwhelmed by the number of things to learn, and looking for any advice you may have on the best way to proceed. PS - I apologize if this is a not quite the right forum for this, I know its not a technical question exactly, but I also know the sorts of people I want to answer this question are reading this website.

  Read the article

• How to disable VGA on new server... reversibly?

  - by Javawag

  Strange question here. I have a server with 1GB of RAM, however when booted this shows as 768MB. I've discovered the reason for it – and that is that it has an unboard graphics card which shares memory with main RAM. Running Ubuntu Server, it doesn't actually ever use anything graphical – it's all set up to be SSH'd into and therefore there's no need to use the VGA. I believe there may be a setting to switch off VGA/graphics card in BIOS, but my question to you guys is: is this recommended? and if I turn it off, then how would I turn it back on again in BIOS (given that with it off, I wouldn't be able to see the option to turn it on as there would be no graphics output!!)?

  Read the article

• How do I reset the $PATH variable on Mac OS X?

  - by Neil

  I've messed up my path variable, and now some apps that I run raise errors saying Command Not Found (error 127) for commands like 'date' and 'sleep'. These commands work fine when executed directly in the shell. I'm guessing this has something to do with a malformed $PATH variable, and need to know how to reset it. I've deleted the files ~/.bashrc , ~/.bash_profile, /etc/bash.bashrc, and ~/.bashrc and ~/.profile. What other files could hold my $PATH? Is there some simpler way to reset the Path than dig into the myriad files which could hold my path? Note, this path problem is only with my user. I made a test user on my system, and the path was fine, back to normal.

  Read the article

• Subdomain still times out after set up a month ago

  - by user8137

  I'm a newbie on this and this has probably been asked already but the subjects online were close but too vague in there answers so I've probably really messed this up. I would really appreciate specific step by step instructions. This is what I'd like to do: use the subdomain www.high-res.domain.com to be accessed by external customers with specific permissions to access the site (like ftp). We use Network Solutions to house domain.com. We recently added a new ip address to point to www.high-res.domain.com. I gave the ip address to the company that hosts our website. I pinged www.high-res.domain.com and it points to the correct ip address but still times out. It’s been a few weeks now and when you ping it, it still times out. C:ping XXX.XXX.X.XXX Pinging XXX.XXX.X.XXX with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for XXX.XXX.X.XXX: Packets: Sent = 4, Received = 0, Lost = 4 (100% loss). Tracert times out as well. I even went to DNS tools and a few other sites for checking this and it shows the same thing. I recently went into the DNSmgmt on our server (wink2k3sp1) and created an A record under the DomainDnsZones which translated to a Cname when you look at it. Under the Domain it has two entries one to the subdomain and the other to the website host each with separate ip addresses. Is this correct? The website people are too busy on another project to research it further and my friends haven't gotten back to me. Please help. Thanks KK

  Read the article

• Game Input mouse filtering

  - by aaron

  I'm having a problem with filtering mouse inputs, the method I am doing right know moves the cursor back to the center of the screen each frame. But I cant do this because it messes with other things. Does anyone know how to implement this with delta mouse movement. Here is the relevant code. void update() { static float oldX = 0; static float oldY = 0; static float walkSpeed = .05f; static float sensitivity = 0.002f;//mouse sensitivity static float smooth = 0.7f;//mouse smoothing (0.0 - 0.99) float w = ScreenResolution.x/2.0f; float h = ScreenResolution.y/2.0f; Vec2f scrc(w,h); Vec2f mpos(getMouseX(),getMouseY()); float x = scrc.x-mpos.x; float y = scrc.y-mpos.y; oldX = (oldX*smooth + x*(1.0-smooth)); oldY = (oldY*smooth + y*(1.0-smooth)); x = oldX * sensitivity; y = oldY * sensitivity; camera->rotate(Vec3f(y,0,0)); transform->setRotation(transform->getRotation()*Quaternionf::fromAxisAngle(0.0f,1.0f,0.0f,-x)); setMousePosition((int)scrc.x,(int)scrc.y);//THIS IS THE PROBLEM LINE HOW CAN I AVOID THIS .... }

  Read the article

• Windows 7 libraries missing from start menu?

  - by Chris L.

  I was trying to stop an annoying error where renaming a new folder in Windows 7 (Starter OEM via Toshiba) would bring up the dreaded "cannot find item" error. I was lead to uninstall Windows update KB980408 with the added registry fix. Well, now the problem is still unfixed, but worse, all the libraries have vanished from the right side of my start menu! This is a pretty aggravating state of affairs, and I've already tried a system restore, adding back in some registry keys, changing preferences...the smash. Funnily enough, libraries are still in explorer and I can see that according to preferences they are displaying, but...nada. Any suggestions?

  Read the article

< Previous Page | 547 548 549 550 551 552 553 554 555 556 557 558  | Next Page >