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• Why cant i install ANY operating system??

  - by Ranhiru

  I tested the memory and i tested the hard disk and everything is fine! Mini XP booted from Hirens Boot Disk works :( I tried Windows 7, Windows XP SP3 and even Ubuntu 10.04 :( All Operating Systems boots up to the point where they can load necessary files to start the OS and then resets the laptop Windows 7, only up to the point where the Windows Loading Animation is happening Ubuntu, only up to the point where the loading is done, shows a small screen and then goes to a blinking cursor and thats it... it keeps on blinking and sometimes resets the computer Windows XP SP3, loads all the drivers and everything and then the point where i should be able install the OS, it simply resets the laptop :( I have used the word reset instead of restart because the laptop completely turns off and then only turns back in Any solutions would be greatly appreciated

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• Solaris TCP/IP performance tuning

  - by Andy Faibishenko

  I am trying to tune a high message traffic system running on Solaris. The architecture is a large number (600) of clients which connect via TCP to a big Solaris server and then send/receive relatively small messages (.5 to 1K payload) at high rates. The goal is to minimize the latency of each message processed. I suspect that the TCP stack of the server is getting overwhelmed by all the traffic. What are some commands/metrics that I can use to confirm this, and in case this is true, what is the best way to alleviate this bottleneck? PS I posted this on StackOverflow originally. One person suggested snoop and dtrace. dtrace seems pretty general - are there any additional pointers on how to use it to diagnose TCP issues?

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• How can we connect TP-link Access Point- TL-WA5210G with Wifi Lan card?

  - by PPS

  I would like to know that, We have a small Wireless Network that covers 40 mtrs indoor. Now we plan to expand our Network Coverage area apporx. 200 Mtrs (Outdoor). Due to our requirement we used TP- Link Access Point TL-WA5210G Outdoor(This AP covers 15Km area). We have 3 blocks between 200 mtrs, We like to connect all the laptops Lan Card directly with required Access-point. What should we do to achieve this, right now we are not getting the full strength signal, when we cross the 80 mtrs. So please suggest me proper configuration for implementing this TP-Link access point. Thanks PPS

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• Can GoogleApps exist with Exchange 2003

  - by Adam M.

  I am looking at the next step in our Groupware solutions. Rather got with a conventional add a new MS Server/MS Exchange to allow for growth and expanding offices. Could an Office operate with both an existing Exchange server setup and migrate a portion of mailboxes to the GoogleApps platform? I want to see if the we could use the GoogleApps for managers and larger mailboxes, and leave a large amount of small mailboxes on the existing hardware that is configured for Exchange/outlook? Can the two co-exist in an longterm configuration, where they can 'play nice' together? Is there any options that would allow for for this and would this have limitations? Such as the Free/busy connectors (Calendaring)? Is there any pitfalls for this type of design? Thanks

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• Clear / Flush cached memory

  - by TheDave

  I have a small VPS with 6GB RAM hosting a couple of websites. Recently I have noticed that my cached memory size is quite high - see below: Cpu(s): 0.1%us, 0.1%sy, 0.0%ni, 99.1%id, 0.0%wa, 0.2%hi, 0.4%si, 0.0%st Mem: 6113256k total, 5949620k used, 163636k free, 398584k buffers Swap: 1048564k total, 104k used, 1048460k free, 3586468k cached After investigating if there is some method to have this flushed or cleared I stumbled upon a command which is: sync; echo 3 > /proc/sys/vm/drop_caches I read it could be useful to add this to a chron-task/job. Is this method recommended or could this lead to potential problems? The only concern I have is that I use one Magento installation on Memcached - could this have any negative effects on it? I am certainly not a pro therefore I would very much appreciate some expert advise. PS: My VPS runs on CentOS 5 x64 and I have WHM + NGINX installed.

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• Can I change the system's "Browse for Folder" dialog globally?

  - by Chris Phillips

  As far as I know, everyone hates the "Browse for Folder" dialog: This dialog is always too small, rarely remembers locations well, and worst of all: forces you to navigate your entire computer using a tedious tree structure. Now, to be fair, some of the problems are likely to do with how apps are invoking the control -- not setting a size or a default directory, etc. But the problem about the tedious tree control remains. Is there any way to customize your Windows installation to use a different control? Preferably an app/installer that does it for you safely, but dropping in a compatible DLL or similar technique would be okay too. Or are we stuck with this terrible control forever?

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• Network trials and tribulations

  - by MauiWowie

  Hi, I am in the process of setting up a small (two PC's, both running Windows 7) network using a D-link DI-604 router (which acts only as hub, it's not set up in any way). In the Network and 'Sharing Center' in 'Control Panel' I clicked 'Set up a New (Connection or) Network'. All went well up until the moment I attempted to connect one PC with the other (in the 'Connect' dialog I entered the other PC's IP, no pwd). I can use both PC's to connect to and browse the net though, so the router/hub does not seem to be the problem. And I must have done something right, because the other computer shows up in the 'Network Map'. Any and all help is much appreciated!

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• mplayer dumpstream sometimes fails

  - by User1

  I'm trying to rip the video at http://videolectures.net/ecml07%5Fgetoor%5Fisr/, so I can play it at a faster speed. I paste http://193.2.4.216/2007/pascal/ecml07%5Fwarsaw/getoor%5Flise/ecml07%5Fgetoor%5Fisr%5F01.wmv into a firefox browser in Windows and MediaPlayer plays the thing. However if I try mplayer -dumpstream, it gets stuck into an infinite loop trying to play the file. If I use wget to download the link, I get a small text file which basically points to the same URL. How can I get mplayer to download this stream?

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• How can I make full-screen desktop applications only cover the snapped desktop?

  - by nhinkle

  In Windows 8, you can "snap" two apps next to each other, and one of those apps can be the legacy Windows desktop environment. A convenient application for this (or so I thought) would be to snap a chat client, small browser, or other app while watching content in full-screen on the desktop. The problem with this is that full screen desktop applications will take over the entire screen, even if the desktop is snapped to only occupy 3/4th of the display. What I would like is some way to force "full screen" desktop apps to only cover the snapped desktop area, and to truly go full screen if the desktop is snapped to full-width. Is there some way to configure this? If that didn't make sense, let me illustrate with pictures: Desktop in snapped view with SU chat in mini-browser: What happens when you click "full screen": What I want to happen when I click "full screen" (note this is digitally altered, not a real screenshot)

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• Determine Server specs for a Rails with MySQL database (on AWS)

  - by Rogier

  I developed a intranet applications with Rails (3.2) for one of my customers. There will be around 30-40 employees working with it. Backend is MySQL (5). What would be the best way to determine the servers specs needed? Given: max. load will be roughly 2400 (40*60) HTTP requests (mixed GET / POST) per hour. 15% of these calls are JSON calls (iOS) avg request will make between 5-10 database calls 500-800 SQL INSERTS per day webpages are fairly simple (no images, just text) avg webpage is 15 request (css/js/etc) and total size is 35-45 KB More specific, since they need access from multiple geographical locations, we are thinking of running a bitnami Ruby stack in the AWS cloud (uptime is important). Any thoughts on a AWS Instance (small/medium) and Utilization (light/medium/heavy) ? Thanks!

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• Checking whether product key will work with SBS 2003

  - by Rob Nicholson

  We've recently absorbed a small company who had a Dell PowerEdge server running SBS 2003. For some reason, the hard disks have been wiped. We have the product key though from the sticker on the side of the case but not the installation media: Win SBS Std 2003 1-2 CPU 5-CAL OEM software We do have a Dell labelled set of four CDs labelled SBS 2003 in our store and I've built a VM from this media but it doesn't prompt for the product key during install. Is there any way to ascertain whether this media will work with this product key without going through activation? I know one can activate several times but would prefer to check we've got the right media before doing this. Thanks, Rob.

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• Terminal Server 2008 - Slow File open dialog in Office 2003

  - by Chris

  I have yet another small issue that annoys me everyday in our Terminal Server environment. It seems when logging into Terminal Server users report the initial File | Open or File | Save As from within an application such as Word, Excel (2003 edition) is very slow to display the actual dialog box. The dialog appears quickly but it is whited out (sometimes displays not responding in title bar) and unresponsive, it then sits like this for about 20-30 secs before popping into life and displaying all the folders etc. The second time you go to save or open a file it loads almost instantly. Any suggestions or similar problems out there?

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• Web application design with distributed servers

  - by Bonn

  I want to build a web application/server with this structure: main-server sub-server transaction-server (create, update, delete) view-server (view, search) authentication-server documents-server reporting-server library-server e-learning-server The main-server acts as host server for sub-server. I can add many sub-servers and connect it to main-server (via plug-play interface maybe), then it can begin querying data from another sub-servers (which has been connected to the main-server). The sub-servers can be anywhere as long as connected to internet. The main-server can manage all sub-servers which are connected to it (query data, setting permission between sub-servers, etc). The purpose is simple, the web application will be huge as the company grows, so I want to distribute it into small connected plug-able servers. My question is, does the structure above already have a standardized method? or are there any different views? what are the technologies needed? I need a lot of researches before the execution plan begin. thanks a lot.

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• Blocked connections passing through firewall. What is wrong?

  - by Kiranu

  In our company we have a small business router (Cisco RV082) on which we are using its standard configuration (block all incoming traffic). We also have an SMTP relay configured (using WS2008R2) so that our internal applications can send email through google apps (which requires authentication). The thing is that the server was being used to send spam. We fixed the problem by only allowing the server to relay email from our internal IP address range (10.0.0.0/16). My concern is that there was a way by which external IPs connected to the network and that underlying problem has not been fixed, but I cannot imagine how these machines connected. Any thoughts?

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• Active Directory LDS Structure Best Practices

  - by Mark A Johnson

  I'm looking for guidance in structuring an LDS directory and finding only best practices targeted at Domain Services. Does anyone here have references for the hierarchical structure we set up in the directory? I'm interested in small items, like whether to name the top node with "DC" tags or "O" tags, etc. E.g., should it be "DC=CompanyName,DC=local" when we're not actually using any specific domain? Shouldn't it be "O=CompanyName"? And I'm interested in whether this question is even worth considering.

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• Dell EqualLogic vs. EMC VNXe [closed]

  - by Untalented

  We've been looking into SMB SANs and based on the competitive pricing I've been getting we're really liking these two array's. There are some pro's to both solutions, but I've unable to really decide which to choose. The EMC offers better expandability since you can buy an additional shelf (roughly $1200) and can add drives then to the array. However, the Dell unit is still very nice. Can anyone comment on their experiences with the two and thoughts on this? Also, to get the VMware Storage API support you need VMware Enterprise. How much additional performance does this provide? It's roughly $15k more than the Essentials Plus bundle we're looking at (this is a small environment [3 Hosts 1 Array].

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• Compiz shutdown hook?

  - by ???

  I want to check 10+ local Git repositories if they have any unpushed commit, before shutdown. (I always forgot to push them, so later, the next morning I came office and back home again) I think maybe the shutdown process can check some conditions to meet, if any condition is not met, then give the user the choice to continue to shutdown or just cancel. Then, I can write something to hook the shutdown to check my Git repository to push. EDIT I have changed the title from Ubuntu shutdown hook to Compiz shutdown hook. I want to hook to the small lovely shutdown button, rather then click another ugly shortcut icon on the desktop.

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• Recommending simple appliance for DansGuardian, iptables, snort inline

  - by SRobertJames

  I'm currently using a Linksys E2000 with dd-wrt. I'd like to add DansGuardian for Content Filtering and snort-inline for IPS; but those require a more powerful box (mainly, more storage). Can you recommend a good device to use? I'm open to both overwrite-the-firmware (like dd-wrt) and designed-to-be-customized boxes. Requirements: 1. 5+ Ethernet ports, pref. GigE 2. small form factor 3. No noise (office environment) 4. low power 5. Not sure about 802.11 wireless Budget < $400, pref. less.

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• Obtaining list of files from php script?

  - by SenorSputnik

  Naenara/KCCKP offers a catalog of hundreds of mp3 files that can only be downloaded in small amounts at a time. Clicking on a song title invokes mp3player.php and downloads a plaintext link to the mp3 file: http://www.kcckp.net/mp3player.php?e+8 Going directly to mp3player.php will display Korean error messages and send you back 1 page in your history. Is there any way to parse/coax mp3player.php into dumping a full list of mp3 links? I am sorry if this is a painfully easy or impossible task, I have not even begun to delve into php. </newbiewhining>

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• Web based interface for open SSL client certificates

  - by Felix

  Hi there! We are currently developing a apache2-based web application and want to invite some beta testers to give it a try. To be on the safe side, access should be provided by individual browser certificates (.p12) which are issued using a (fake) CA. Our users should be passing a complete register/login process and some of them will be granted administrative privileges within the application. That's why a preceding simple web-based authentication won't be sufficient. Atm, I am using a serverside shellscript to generate the certificates each time. Do you know about a small, web-based tool to simplify the process of generating / revoking those certificates? Maybe an overview of the CA's index.txt plus the option to revoke a cert and a link to download them directly?

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• Is there anything that can be done to make X forwarding over LAN less painful?

  - by Earlz

  I have two *nix machines that I like to remotely do graphical things sometimes with. One of those machines is my Arch Linux media server, and another is my OpenBSD router/general server. My current task was installing a Windows XP over virtual box on my media server. I preferred to do the installation from my main workstation so that I could continue to watch TV from my media server on it's "actual" display. I soon noticed that X forwarding is quite painful though, even over low-latency LAN connections. Are there any settings I can tweak to make it a bit less painfully slow, jittery, and laggy? My LAN is rather small, 100Mbit, and ping times to the other box average at about 0.15ms. Also, I know Virtualbox has a VNC mode it can use instead of doing X forwarding, but this particular task was just an example

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• Mysql Master-ColdMaster

  - by enedebe

  I explain my case: I'm at Amazon AWS and I want to be fault tolerant on a entire region failure. My basic problem is to have the db in sync with 2 regions. My options: Master-Master (high lag) Hand made sync every 5 minutes Master-ColdMaster?! (copy on the fly but Master won't wait the other region commit) In my system we could afford loosing a piece of data (we're not a bank) the last inserts in the db, but we could not afford more than 10 minutes of downtime. The database is small and the level of inserts is low, and I wouldn't affect the normal usage waiting other region commit. Is the 3 solution posible? And the most important, once the primary fail how we can detect and change the rol between master-coldmaster -- coldmaster-master ? Is there any clean-mode to restore between failure? Thank's!

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• Odd domain switching behavior in Firefox and Chrome

  - by Jeremy Detrempe

  We have different development severs and a production server. Testing is done in the development servers. As a QA engineer, I'm switching between these servers quite often throughout the day. In Chrome, sometimes I need to reload a page a few times to get it to pull from the newly switched server. In Firefox, sometimes I need to quit the browser in order to get it to pull from the newly switched server. (We have small tags that indicate which server you are pulling from, which is how I know in-browser.) Why does that happen? I'd love to know how that happens (maybe what it's called?) and what the best way to deal with it is. (I know that Firefox has an extension for domain switching; is that the best solution?)

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• Latex two captioned verbatim environments side-by-side

  - by egon

  How to get two verbatim environments inside floats with automatic captioning side-by-side? \usepackage{float,fancyvrb} ... \DefineVerbatimEnvironment{filecontents}{Verbatim}% {fontsize=\small, fontfamily=tt, gobble=4, frame=single, framesep=5mm, baselinestretch=0.8, labelposition=topline, samepage=true} \newfloat{fileformat}{thp}{lof}[chapter] \floatname{fileformat}{File Format} \begin{fileformat} \begin{filecontents} A B C \end{filecontents} \caption{example.abc} \end{fileformat} \begin{fileformat} \begin{filecontents} C B A \end{filecontents} \caption{example.cba} \end{fileformat} So basically I just need those examples to be side-by-side (and keeping automatic nunbering of caption). I've been trying for a while now.

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• Avoiding syslog-ng noise from cron jobs [closed]

  - by Eyal Rozenberg

  Possible Duplicate: How can I prevent cron from filling up my syslog? On my small Debian squeeze web server, I have syslog-ng installed. Generally, my logs are nice and quiet, with nice -- MARK -- lines. My syslog, however, is littered with this Sep 23 23:09:01 bookchin /USR/SBIN/CRON[24885]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -delete > /dev/null) Sep 23 23:09:01 bookchin /USR/SBIN/CRON[24886]: (root) CMD ( [ -d /var/lib/php4 ] && find /var/lib/php4/ -type f -cmin +$(/usr/lib/php4/maxlifetime) -print0 | xargs -r -0 rm > /dev/null) Sep 23 23:17:01 bookchin /USR/SBIN/CRON[24910]: (root) CMD ( cd / && run-parts /etc/cron.hourly) kind of garbage. What's the clean way to avoid it?

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