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  • HP ProBook 4540s CD/DVD Drive cannot Read Disks

    - by DavidB
    I seem to have a problem with the CD/DVD drive on my HP ProBook 4540s laptop. I cannot get it to read any disks. Normally, I would say that this is a hardware issue, but whenever I put a disk that previously could be read in the drive, it starts to make noise like it is trying to to read the disk but cannot and AnyDVD HD seems to be able to retrieve disk information with some struggle. Any ideas on what the problem could be?

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  • Cisco ASA SSL VPN options?

    - by JonH
    Disclaimer: I am not a network admin so I may be wrong here but I thought asking here would help. I'm a developer mainly on the .net framework as well as helping get a mobile intranet app working. Because this app is only allowed to be used on our network I can easily run this app on our wireless network connection within our building. All is fine and dandy but we'd also like to be able to run this mobile app at say a customer plant using VPN software. I thought surely this could be easy as we exclusively use Samsung s4 phones so I thought I'd download Cisco's Samsung any connect software to allow us to VPN...its right on the play store. Sure enough it doesn't work. I mention it to our network admin who says not possible since we have old technology that doesn't support SSL. He mentions we'd have to upgrade all of our hardware, the firewall, etc. to get this to work. We really need VPN on our phones not only for this app but other internal apps, etc. He did mention the following: We can’t upgrade the software on our ASA, because we don’t have enough memory for the new version.  (the asa is very old).  We can’t add more memory, so we would have to get a new firewall, which I have been told I cannot do. In addition he also mentioned: The Samsung AnyConnect client uses SSL to connect.  With the current (old) version of software that our firewall is running, the SSL connections are unreliable.  We need different hardware in order to upgrade our firewall, which we are unable to attain at this time.  This is the same reason that Windows 8 clients are not able to connect. I am curious hence me asking. vpns seem to be fairly simple to setup. What other options do I have aside from making this a public site or web service that consumes this data over the internet as this is a complete no no. What can we do to make this work without that much effort or cost.

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  • SYSTEM hive of the register is causing computer to BSOD on boot

    - by FernandoSBS
    After some work on my computer, perhaps some updates installs, it didn't boot anymore. BSOD on windows logo loading. After some research I've found out that if I replace the SYSTEM hive of the register with the last backup it boots ok, but of course goes back to an old stage of machine setup. So my question is: where does register stores hardware and/or updates/software that loads in the machine boot, so that I can check which program is producing that BSOD and disable it? System is Win 7 64 bits SP1

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  • Anyone fix IBM Thinkpad (T40) laptops in NY/NJ and charge a success fee (ie. only the laptop is fixe

    - by Tim
    Are there any master technicians (or shops) out there in NY/NJ who would be willing to work with my two IBM Thinkpad T40 laptops? They both seem to have hardware/mechanical problems and I am sure can be fixed if inspected by the right ppl. But I don't to pay unless someone can fix them. Do you know anyone in NY/NJ who does business such that they won't charge me anything if they can't fix my laptop?

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  • "System cannot find the file specified" trying to reinstall network driver.

    - by Justin Love
    After uninstalling Symantec Enpoint Protection (manually) one computer (Windows XP) has an inoperative NIC; it shows up in device manager as conflicted. I tried doing a windows repair from CD, which did not improve the situation. When I went to reinstall the drivers, driver installation failed with: Cannot install this hardware The system cannot find the file specified I've deleted the NIC in device manager without improvement.

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  • Performance SAS vs SSD

    - by omoto
    When it comes to speed of development, very important thing is your hardware. I need suggestion to choice between hard drives. What is a best solution: price/value

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  • ASA and cisco vs NSA sonic firewall

    - by Lbaker101
    Currently I’m trying to structure our network to fully support and be redundant with BGP/Multi homing. Our current company size is 40 employees but the major part of that is our Development department. We are a software company and continued connection to the internet is a requirement as 90% of work stops when the net goes down. The only thing hosted on site (that needs to remain up) is our exchange server. Right now i'm faced with 2 different directions and was wondering if I could get your opinions on this. We will have 2 ISPs that are both 20meg up/down and dedicated fiber (so 40megs combined). This is handed off as an Ethernet cable into our server room. ISP#1 first digital ISP#2 CenturyLink we currently have 2x ASA5505s but the 2nd one is not in use. It was there to be a failover and it just needs the security+ license to be matched with the primary device. But this depends on the network structure. I have been looking into the hardware that would be required to be fully redundant and I found that we will either of the following. 2x Cisco 2921+ series routers with failover licenses. They will go in front of the ASAs and either connects in a failover state or 1 ISP into each of the 2921 series routers and then 1 line into each of the ASAs (thus all 4 hardware components will be used actively). So 2x Cisco 2921+ series routers 2x Cisco ASA5505 firewalls The other route 2x SonicWalls NSA2400MX series. 1 primary and the secondary will be in a failover state. This will remove the ASAs from the network and be about 2k cheaper than the cisco route. This also brings down the points of failure because it’s just the 2x sonicwalls It will also allow us to scale all the way up to 200-400 users (depending on their configuration). This also makes so the Sonic walls. So the real question is with the added functionality ect of the sonicwall is there a point in paying so much more to stay the cisco route? Thanks!

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  • DVD playback with Windows Media Player 11 works fine, but when copied to HDD and then played back, t

    - by stakx
    I have several DVDs with short documentaries on it. Since the notebook I'm using (a Dell Latitude E6400) has only one DVD drive, and I might play back those short movies very often, I thought of copying them to the HDD and playing them back from there. However, I've run into a problem, namely stuttering audio. Problem description: When I play back these movies directly from DVD (with Windows Media Player 11 under Windows Vista), everything works fine. Smooth video, no significant audio problems (only the occasional click). But as soon as I copy any of these DVDs to the HDD and try to play them back from there (e.g. using the wmpdvd://drive/title/chapter?contentdir=path protocol, I get stuttering audio — audio playback sounds like a machine gun for a third of a second or so, approx. every 8 seconds. I have tried converting the VOB files from the DVD to another format (ie. ripping), but that resulted in a noticeable downgrade of picture quality. Therefore I thought it best to keep the files in their original format, if possible. Still, I suspect that the stuttering audio is due to some (de-)muxing problem, and that changing the file format might help. (After all, video playback is fine; therefore I don't think that the hardware is too slow for playback.) Only thing is, I don't know how to convert the VOB files to another Windows Media Player-compatible format without quality loss. I hope someone can help me, or give me further pointers on things I could try out to get HDD playback to work without the problem described. Some things I've tried so far, without any success: VOB2MPG, in order to convert the .vob file to a .mpg file. But that changes only the A/V container, not the content. No re-encoding takes place at all. Re-encoding with MPlayer/MEncoder. Lots of quality loss there, and I frankly haven't got the time to test all possible settings combinations available. Disabling all plug-ins, equalizers, etc. in Windows Media Player. Disabling all hardware acceleration on the audio playback device. Further info on the VOB files I'm trying to playback: The video format is MPEG ES, PAL 720x576 pixels @ 24/25 frames per second. The sound stream is uncompressed PCM, 16-bit stereo @ 48kHz. (Might it help if I somehow re-encoded the sound stream at a lower resolution, or as an MP3? If so, how would I do this without changing the video stream?) P.S.: I am limited to using Windows Media Player (11). (I previously tried MPlayer btw., but the video playback quality was surprisingly bad.)

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  • Seeking (somewhat) better explanations about supporting > 2.1 TB hard drives.

    - by irrational John
    Today while Googling about I stumbled across posts claiming that Seagate plans to ship a 3TB drive sometime later in 2010. Unfortunately, the stuff I looked at all seemed to contain tidbits of info which I didn't think fit together properly. (I would link to some examples, but I'm only allowed 1 link per post at the moment). Now I really don't have any "need" to better understand the underlying tedious details of this. I am just curious. And confused. So ... some questions I'm hoping someone better informed than I might answer. The talk about a potential addressing problem in both the hardware and the software confused me. The assertion is that something called something called Long LBA addressing (LLBA) is needed in the Command Descriptor Block as a way to get around the current limits to access a hard drive bigger than ~2.1 (or ~2.2?) TB. OK, fine. But I thought the last time this problem came up it was solved by extending the length of the LBA field from 28 to 48 bits. (Remember this website? www.48bitlba.com) A 6 byte LBA is clearly large enough, so what's up with this LLBA talk. I thought this was all fixed back by Win XP SP2, if not sooner? And certainly all the hardware should be up to the task, shouldn't it? The real problem as I understand it with drives much bigger than 2 TB are the 4 byte LBA fields in the Master Boot Record (MBR) used to partition just about all hard drives at the moment. The most likely solution is to migrate to Intel's GUID Partition Table (GPT). A GPT uses 8 byte fields for the LBA. What I don't understand in this context is what is the problem with booting say Windows from a 3TB drive that uses a GPT. Granted, the current PC BIOS wouldn't know how to recognize or work with a GPT. But every GPT comes with a so-called "Safety" or "Guarding" MBR in sector 0.Apple already uses a hybrid version of the MBR to allow them to boot Windows on their Intel Macs (aka Boot Camp). Couldn't something similar be done to allow the PC BIOS to recognize and boot from a partition in, say, the first 1 GB of a 3GB or larger drive? I've got more questions such as where do 4K sectors fit into all of this. But it's probably time I just shut up and posted this. ;-) -irrational john

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  • methods for preventing large scale data scraping from REST api

    - by Simon Kenyon Shepard
    I know the immediate answer to this is going to be there is no 100% reliable method of doing this. But I'd like to create a question that details the different possibilities, the difficulty of implementing them and success rates. I would like to go from simple software ip/request speed analysis to high end sophisticated soft/hardware tools, e.g. neural networks. With a goal of predicting and preventing bogus requests and attempts to scrape the service. Many Thanks.

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  • Windows 7 boot problem

    - by nijikunai
    My system doesn't boot at all, upon starting it takes me to the Windows Error Recovery screen saying "Windows failed to start, a recent software or hardware change might be the cause" and gives two options Launch System Repair (Recommended) Start Windows normally But neither options work, upon clicking either of them, some progress bars get displayed and the screen just freezes on "Starting Windows". I tried booting from the Windows 7 disk but it too freezes on the "Starting Windows" screen. I even tried booting from ubuntu, slax linux, but they don't work too.

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  • Preparing laptops for theft

    - by ccook
    With a number of laptops out there the likelihood of one being stolen is high. What methods, preferably free, can be used to secure the data on the computers? The laptops do not have any special hardware on them, and generally keep their user data in a dropbox folder. One small step taken is to have the the dropbox folder encrypted by Windows 7. Any additional suggestions are greatly appreciated. The data in the dropbox folder is sensitive.

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  • Mac OS X Leopard Kernel Panics getting absurd

    - by Henri Watson
    Today Mac OS X kernel panicked twice on me. The first time, I got this log. The second time, I got this log. A few minutes ago, iTunes started sounding blocky, after quitting FireFox everything went back to normal, I am currently using Opera. These are my system's specs. EDIT: I ran the apple hardware test and got these results. Without extended testing: With extended testing:

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  • How much it costs to tun own hosting server

    - by Mirage
    I currently have VPS in my company and there i host about 20 websites. My copany wants to set up server locally where they can host all websites rtaher using 3rd party VPS How it will cost e,g about upload ,download speed from data centre. Cpanels license IP registration, hardware , backups, electricity backups, Any other cots etc I would prefer centos

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  • Xen guest miration to host with missing features

    - by deploymonkey
    If I want to move a xen guet (domU) from one host (dom0) to another host on another hardware platform which misses some capabilities, say virtualisation features, especially directio or likewise, will my image be able to run despite missing capabilities of the new host? This is important because I need to know if I can prepare XEN images on my workstation with full virtualisation features and deploy same images on less capable Servers later on. Thanks for the help and input

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  • SafeOffice 500 - how to enable VPN access to another network (out)

    - by Dani
    Hi, I have a safe office 500 box at my edge. (checkpoint's hardware firewall) I'm trying to connect to another office VPN using windows 7 pptp connection. It fails (saying something about enabling GRE). (after authenticating, hangs for a while, than give the error message.) Using the same computer with direct internet access (not behind the firewalls) works fine and I get connected. how do I setup the safe office to enable me to use vpn (pptp) out connections.

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  • Intel GMA 4500MHD flickering in opengl

    - by Aaron
    I have an application that uses OpenGL for its display. When this application is run on a laptop with an Intel GMA 4500MHD on Windows XP the OpenGL content appears to flicker/shudder between 2 frames. I have experienced the exact same problem when running this application on nVidia Quadro FX hardware, however with nVidia the problem can be corrected by disabling the "Unified Back Buffer" (UBB) feature in the driver. Does anybody know how I can disable the corresponding feature in the Intel driver?

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  • Building an SSL server farm

    - by dan
    I'm interested in building the the architecture in the article referenced below. I currently have a modestly-priced layer-4 load balancer and my application servers are the SSL endpoints. I want to put an SSL server farm in between my load balancer and my app servers. Then I will put another inexpensive load balancer between the SSL farm and my app servers, to do layer-7 routing. My web application has a fairly high amount of consumer traffic, that 6 servers can handle at about 50% capacity. Additionally, I have infrastructure traffic that is several orders of magnitude heavier than my consumer traffic. This is data coming in from all over the world that must integrate with my web application in real time. In total I have 18 app servers to handle all the traffic, plus 6 database servers. I will be adding 6 more app servers over the next 2 weeks and another 6 the 2 weeks after that. Conservatively, I estimate I will need to scale to 120 servers by the end of the year. My motivation right now is to separate the consumer traffic from the infrastructure traffic. The consumer traffic is higher priority than the infrastructure traffic and I cannot allow a stampede on the infrastructure side to take down my consumer-facing servers. Having a website that is always up is the top priority. However if there is a failure in one of the consumer app servers, I want to route that traffic to the servers designated for infrastructure traffic. The complication is that all the traffic is addressed using the same hostname and is nearly 100% https. The only way in my case to distinguish infrastructure from consumer traffic is by URL (poor architecture I inherited), so I need a layer 7 load balancer to be able to route. However for that to work I need either a fancy hardware-based SSL terminator or an SSL server farm as described above. Because my user base is rapidly scaling, I worry that if I go down the hardware path it will become very expensive very fast, especially since I will need 4 of everything for high availability (2 identical setups in 2 facilities). Meanwhile, the above diagram seems very flexible and more horizontally scalable. Has anyone built this before? Are there pre-built configurations? What considerations should I make and what software should I use (I've heard of people using apache with mod-ssl, nginx, and stunnel)? Also, when does it make sense to buy an expensive load balancer vs building an SSL server farm? http://1wt.eu/articles/2006_lb/index_05.html

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  • Servers behind load balancer

    - by Tom
    We have a CISCO hardware load balancer with two web servers behind it. We'd like to force some URLs to only be served by one of the machines. Firstly, is the job of the load balancer? or would a better approach be create a subdomain such as http://assets.example.com which would be automatically be routed to one of the servers?

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  • Rack layout tools

    - by Luke
    I'm wondering if there's any tools (preferably offline) that would allow me to layout all of the new equipment that will be going into several standard racks. Currently I'm using Excel to map out all of the slots columns for the data but I suspect that there is some better method of doing this. Suggestions? Edit: Dell has an online tool, but doesn't seem very good at actually saving the data that you're working on (and obviously it's geared towards Dell hardware).

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  • How do I diagnose Windows XP failure to automatically suspend on idle?

    - by Software Monkey
    Since upgrading my hardware (mobo, CPU and memory) a couple months ago my computer no longer automatically suspends and hibernates after the configured idle periods. Both functions work just fine manually, but if I leave the computer on overnight it's still active the next morning even though it's configured to sleep after 3 hours and hibernate after 6 hours. How do I diagnose the cause of this?

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  • how to make sure the OS can recognize my modem ??

    - by Raafat
    Warning ... novice Linux user problem right here ... my modem is Actiotec MDC AC'97 Modem v2132D, how can i be sure that it's a software or a hardware one??, also how can i be sure that it's working on my OS??, or my OS can recognize it or not??, I'm using Linux Debian 5.0, with KDE thanx in advanced ... Raafat

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