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• How to know if my nginx is in good health?

  - by Howard

  I am running a nginx on EC2 (m1.small) for SSL termination. I am using 2 workers on Ubuntu, with latest nginx (stable), the network throughput is around 2Mbps and system load average is around 2 to 3. I am wondering if this system is in good health for now, e.g. what is the queue length (I know nginx can handle a lot of concurrent request, but I mean before the request is being served, how many of them need to wait before being served) what is the average queue time for a given request to be served. I want to know because if my nginx is cpu bounded (e.g. due to SSL), I will need to upgrade to a faster instance. My current nginx status Active connections: 4076 server accepts handled requests 90664283 90664283 104117012 Reading: 525 Writing: 81 Waiting: 3470

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• apache - subdomains are slower?

  - by matthewsteiner

  Using apache benchmark, I ran the exact same php application at my root domain and a subdomain. Even with multiple tests and high request numbers, the requests per second perform extremely differently. I mean something like this: example.com - 1200 requests per second bench.example.com - 50 requests per second What could be affecting this? These aren't using databases or anything, just mainly getting a simple page displaying. But it's the same app for both of them, and I'm wondering why they perform so differently. Ideas?

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• Is it safe to use consumer MLC SSDs in a server?

  - by Zypher

  We (and by we I mean Jeff) are looking into the possibility of using Consumer MLC SSD disks in our backup data center. We want to try to keep costs down and usable space up - so the Intel X25-E's are pretty much out at about 700$ each and 64GB of capacity. What we are thinking of doing is to buy some of the lower end SSD's that offer more capacity at a lower price point. My boss doesn't think spending about 5k for disks in servers running out of the backup data center is worth the investment. Just how dangerous of an approach is this and what can be done to mitigate these dangers?

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• Why it's not possible to compile on a different OS than end-user OS [closed]

  - by sameold

  I was trying to compile a php extension on Windows and ran into some trouble. I then thought it was possible to do the compilation for Windows on Linux, but turned out that wasn't possible. Can someone explain to me why compiling has to be done on the same OS? I'm trying to understand this topic, specifically because if I want to distribute something, does that mean I have to compile it on all these OSs (Windows 7, Windows Vista, Windows XP, Linux, Mac, etc. etc. etc.) So what makes it not possible to compile for one OS on another? Is it the kernel or what?

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• harddrive problem (usb external)

  - by masfenix

  Hey guys I am using a Maxtor One Touch 3 given to my by my uncle. It is connected through USB2.0 When I plug it in, XP installs it and says "the device is ready to use". But it dosnt show up on my computer. It dosn't even show up in disk mangement. I then install Acronis Disk Director (which detects it) but marks it as offline. if i try to change it to online, nothing happens. (actually the lights on the HD blink - meaning communication and goes back into offline mode). The lights on the HD return to a solid which mean "working properly". Here is a screenshot: Is there any way to extract the data off the drive? is the drive corrupt? sitll useable? edit: DISKPART screenshot: edit2: I ran Seagate diagnostic tool and this came up: Long Generic - Started 9/10/2010 6:44:36 PM Bad LBA: 0 Unable to repair Long Generic - FAIL 9/10/2010 6:46:41 PM SeaTools Test Code: 4

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• HP DL160 G6 memory PC3-10600R vs PC3-10600E

  - by Jeremy Hajek

  I am using a HP DL 160 G6 server that according to specs takes PC3 Registered or Unbuffered. When I combine the two types of memory below the system will not POST. When I use just the first type of memory listed the system will POST. I have two pieces of HP memory that came with the server labeled PC3-10600E-9-10-E0 and then I have some Crucial memory labeled PC3-10600R-9-10-B0 I wager that the R means Registered memory and the E means ECC - then shouldn't the crucial memory boot with the system according to the HP specs? Or does the E mean it is Unbuffered and therefore I shouldn't mix and match as according to this HP memory config doc?

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• Not enough storage is available to process this command

  - by Mohit

  I am getting this error on almost all of the operations on a Windows 7 pro 32 bit machine. By operations I mean anything I do. Update a repo from subversion. Access a local IIS Site. Copy a big folder. Run an installer.and sometime if I try again. It get solved. I think there is something wrong wit windows7 . I searched around and found posts suggesting to increase IRPStackSize value in registry I did that no Luck. I am using Microsoft Security Essentials Version: 1.0.1961.0 as my antivirus package Once this errors starts popping up. I have to restart and then in after some random time. It starts showing up again. Any help is appreciated. I am losing lot of my time in restarting my system or retrying again and again.

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• Chef cookbooks marked as executed

  - by Gonzalo Alvarez

  I have setup a Chef server in our network that I use to manage several nodes. These nodes have a chef-client installed executing as a daemon every X minutes. The problem is that every time the client runs, it executes the recipes for all the cookbooks, even those previously executed, so it consumes resources and sometimes it even breaks thinks (with services restarts, for example). I know that I can avoid executing a piece of code or a recipe I create as detailed here: Prevent chef recipe from executing previously executed action? but, would this mean that I should modify any cookbook that I download from the opscode repository. In other words, is it possible to make the chef server (or the clients) to mark the cookbooks as 'executed' as soon as they are executed the first time?

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• What tool can I use to definitely kill a process on Windows?

  - by Moak

  Can anyone recommend an application (preferably usb-portable that doesn't require setup) That really kills a process immediately in windows XP? I ask this because often when I need to use the XP task manager it seems to want to go about it "the polite way" and sometimes crashed programs don't quit or take a minute to shut down. I need a real stone cold killer, not a pushover-could-you-please-quit-now-no?-ok-sorry-program Edit I'm sorry if it wasn't clear previously but I did mean the situation when even the "End process" command in Process tab of the task manager doesn't kill a program, however one of the answers did point me to the "End Process Tree" command which I've never noticed (when right clicking on the process)

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• Is it possible to FORMAT an external hard disk that has been encrypted using Storagecrypt?

  - by Pandian John

  Basically the big problem is that about 680 GB of data from my Seagate 2 TB Ext HD is lost because I was experimenting with a software called storagecrypt. I used it a few months ago and today I tried it again but i didn't know that the old password is already set in the hard disk when I pressed the encrypt button. I forgot the password which is disappointing. Not to mention that software uses 128 bit AES encryption so there is no way iam going to recover that data. My question is that is it possible to Format my Hard disk which has been encrypted? What i mean is that is it possible to completely wipe the data just like it is newly bought so that I can use my External Hard disk?( I tried to format by right click-- Format. But the size of the disk is shown as 1 MB. Answers would be very much appreciated. Thanks.

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• Mail server for Windows 2008

  - by waldev

  I'm going to get a Windows 2008 dedicated server sometime soon. I'm going to have my website hosted on it, so, I also want to run a mail server on the same machine to receive any mail sent to the website (I use the SMTP Server in IIS for sending mail, but this about receiving not sending) Does Windows 2008 have a built-in POP3 OR IMAP server? If so, can it be accessed through a webmail interface? I mean does it also have a webmail interface similar to OWA for example? If not, do you have suggestions for a good mail server with a webmail interface, preferably free or open source? MS Exchange is above my budget and my needs are so simple anyway. I heard good things about hMailServer but I checked and it doesn't have a webmail interface. I know I can outsource this to a third party for a little monthly fee, but I prefer to host my own server. Thanks for any suggestions

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• decrypting a dvd and testing that it is decrypted and playing it locally with its menu?

  - by barlop

  I have a DVD , it may be decrypted. How do I get it to hard drive decrypt it and see if it is decrypted? I have got it to hard drive... I can get VOB files to play(does that mean it is not encrypted?) but I can't get it to play with the menu. I can get the DVD itself to play with a menu. I'd like to get the local copy to. Also, I can play the first VOB file in VLC and MPC but not in mplayer. But that's a secondary thing. I will use whatever player you suggest. I have tried VLC, and mplayer, and media player classic.

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• Running a webserver behind a firewall, is it secure?

  - by i.am.intern

  Currently we have a Linux-based firewall which NAT-ing our public IP address to give internet access to our staff's PCs and a Windows Server 2003 for internal filesharing. I want to host Redmine/SVN (a bugtracker) internally behind this firewall using a Linux server. This webserver will be accessed by our clients externally so they can post bug reports. This means that I have to open port 80 & 22 at the firewall to give access to the webserver and me to SSH it from home. However, let's say I'm using password-based SSH for the webserver and somebody cracked it. Does that mean the cracker could ping and access other servers and PCs in the network?

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• install filezilla error, Depends: libatk1.0-0 (>= 1.29.3) but 1.28.0-0ubuntu1 is to be installed

  - by solomongaby

  Hello, I am trying to install filezilla from this repo: https://launchpad.net/~yofel/+archive/ppa and after sudo apt-get update i tried to install it but i get the error: Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: filezilla: Depends: libatk1.0-0 (>= 1.29.3) but 1.28.0-0ubuntu1 is to be installed Do you have any ideea what is happening ?

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• long table in excel - how to produce stats for subtables?

  - by joe_shmoe

  Hi, (new to excel - ) say I have a table with columns A = {1..5}, B = {a..e} and Score = Number. I want to produce a new table that would display statistics for each A,B combination, e.g. A B Mean SD 1 a .. .. 1 b .. .. ... 2 a .. .. What's the best way of doing this? (i'm on office 2010 beta) Thanks a lot

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• Error on error log

  - by Ryan Murphy

  I am trying to use zend framework 2, i follow these instructions on centos6 via ssh. http://framework.zend.com/manual/2.0/en/user-guide/skeleton-application.html and when trying to start my website up, it gives an error, i go to the error log and i get this. [Sun Jun 30 16:02:17 2013] [error] [client 109.217.190.75] SoftException in Application.cpp:357: UID of script "/home/mydomain/public_html/public/index.php" is smaller than min_uid [Sun Jun 30 16:02:17 2013] [error] [client 109.217.190.75] Premature end of script headers: index.php What do they mean, how I fix them?

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• alternatives to roboform

  - by ldigas

  Yes, I know there is already a few similar questions. Is there an alternative to RoboForm (which for some reason makes my FF very slow, because of some other extensions) which has the same way of working. What I mean, you click on ... and it opens a new tab with the page in question, and logs on to it (so no databases, and such ...). One other advantage would be if it kept passwords locally. Basically, I'm looking for RoboForm other than RoboForm. Anyone knows of any ?

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• headings numbering not updating

  - by Marwen Hizaoui

  I'm writing a report and I have some problems with headings. I have this structure: Chapter 1(heading1) 1.1(heading2) 1.1.1(heading3) 1.2(heading2) Chapter2(heading1) 2.1 2.2 The problem is that when I choose heading 1 word writes a number before chapter - 1 chapter 1 I want numbers to appear only from heading 2. I managed to change it using multilevel lists but it doesn't update appropriately. I mean I removed the number before chapter 1 for example but it did not update chapter 2 subheadings that became numbering from 1 (not 2). Please help me out. thanks.

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• Windows 7 upgrade advisor issue

  - by Groo

  I am preparing to migrate a pretty old XP machine to Windows 7. I ran the Windows 7 Upgrade Advisor and got a couple of smaller issues (low 512Mb RAM complaints and similar stuff). Apart from that, everything else was shown as compatible, including my old ATI Radeon 9550/X1050 card: ATI Radeon 9550/X1550 Series: This device is compatible with Windows 7. The thing that concerns me is that people around the web seem to be unable to actually find a Windows 7 driver for this card. Even the ATI web page states that this is a legacy device: If the user chooses to, they can install the ATI Catalyst Windows Vista graphics driver under Windows 7. [...] Using the ATI Catalyst Windows Vista driver under Windows 7 is not officially supported by AMD [...] Should I trust the Advisor and continue with the update? Does this mean Microsoft will provide at least a generic driver which will allow hardware acceleration with this card?

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• No internet on some devices, still on WiFi

  - by Joost

  Ok, here's the situation. I live with 3 friends, and we often sit in the living room with laptops out. There's a WiFi router in the kitchen, and we have quite a stable connection. The issue, however, is this: sometimes, all of a sudden one of my friends loses internet connection. Even disconnecting/reconnecting to the WiFi network does not help. When we restart the router, though, it works like a charm again. The odd thing is, it happens just for this one Windows 7 laptop. We've switched routers (for a different reason) in the mean time, but the issue remained. This makes me suspect the laptop even more. I realise I've given little details, but I don't really know what to try/do. Any suggestions what it might be?

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• XCache permission issue

  - by Guilhem Soulas

  I successfully installed XCache on a Linux server where WHM/cPanel is installed too. However when I go to the admin interface it shows me only the cache for the owner of the folder (= a cPanel account). So I copied the admin interface on another cPanel account of the same server and I'm surprised about the memory allocation because it seems to use the memory I set in php.ini for EACH user. So if set the memory size to 64M and I have 10 users, doesn't it mean that XCache can take up to 640M? It's not the behaviour I want because I can't control the memory in that case! I would like to set 64M only for the entire server.

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• ESXi 5.1 - Unable to register host

  - by deanvz

  I download and successfully installed ESXi 5.1. I am however unable to get the licence key I received installed. An error occurred when assigning the specified licence key: The system Memory is not satisfied with the 32 GB of Maximum memory limit. Current with 80.00 GB of Memory. Is there now way around this? A quick google revealed that this is a global problem with no real answer or resolution. The only workaround is to remove the physical RAM chips, but as this is in going to be in production I dont want to do that as it would mean down time when I have to reinsert the memory

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• Has anyone tried the "Secret LCD Monitor" hack? [closed]

  - by cornjuliox

  I'm genuinely curious to know, has anyone tried this hack? I can get LCD monitors for cheap at a place near where I live, and I'd like to try it myself, but I'd like to get more info on it before I do so to increase my chances of success. I'm looking for more info on the entire process, especially about any solvents I can use should I run into any glue problems. Questions for anyone that HAS tried it: Does it actually work, or is this some gag? If it works, is there any decrease in image quality or viewing angles? Since the polarization filters are essentially stuck to glasses, does that mean you're going to have to sit directly in front of the monitor at all times, and any shift in your position means that you won't be able to see the image? Does it improve/worsen ghosting or other LCD artifacts? Are there any problems with eye strain?

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• Logging full network connection like in browser

  - by pokemarine

  Can I set my browser or download a special application to log/download everything that is going through network while browsing a site? When I open a website in Firefox, it downloads the files to temporary folders, but I need everything, and by everything I mean full Ajax request logging, image downloading...etc Every file that is downloaded while browsing sites (and not temporary, I need them later, so It should log and categorize it somehow). Otherwise: I want to automatically save everything you can see in the browser's network tab (after pressing F12) and not just the response, also need the information about what it sent and what it got back.

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• Macbook Drivers for Windows 7

  - by Kaan

  I have a hard drive which I removed from my HP Laptop and plugged into my Macbook. Windows 7 started well and then installed graphic driver but the others (sound, touchpad) were not recognized by the operating system. What should I do? Edit from OP Sorry for writing here. I don't know why but my account is not associated with this post. First, I have Tiger CD but problem is neigher my Macbook, nor my Desktop PC can read the CD. I have downloaded Driver's from Apple (http://support.apple.com/kb/DL74) but it's not working. I mean, when I double click the exe file, It gets listed in process list int task manager but after 5 seconds, I disappears. But somehow, Windows recognized my audio device and installed its driver. Microphone is ok but red light is on.

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