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• IPv6 scope id issue with IE

  - by eych

  I have an ASP.NET website that works with Firefox because FF doesn't need the % in the scope-id to be encoded (%25). The website also works on the same machine using IE because I can leave out the scope-id. However, to access the website from another machine in the network, I need to add the scope-id to the IPv6 address. For some reason, using the scope-id doesn't allow an authentication cookie to be created, and the website keeps going back to the login page. Anyone using IE7+ to access an ASP.NET website on a network using IPv6 with an encoded %?

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• How to make variable range of cells?

  - by Ertai

  In A column I have a set of numbers (over 1 000). I want to get average of ten of them (a1:a10) and wrtite into next column (B). Now I want to get next ten numbers and get average of them (a11:a20). And so on... How to get this if in C1 i would have number which is range (i.e 10 = a1:a10/a11:a20 ; i.e 25 a1:a25/a26:a50) of the cells? When I change C1 value I want to column B to update automaticaly? Is this possible?

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• Why hasn't anyone made a way for TimeMachine to wirelessly backup to Amazon S3?

  - by Jordan

  Seriously. I'm looking at you, Apple. If TimeMachine is supposed to be 'simple backup that just works' why is it impossible to backup into my S3 filespace? Why hasn't some 3rd party developer (JungleDrive???) made it so that TimeMachine will be OK with backing up to amazon s3 storage? It just seems like the most convenient, robust answer. I'd gladly pay the $20-25 a month for complete, unlosable backups that I can sync with wirelessly on a proper scheme.

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• IIS 7 Application Pools using a different amount of memory on multiple servers behind a load balancer

  - by Jim March

  We have 6 servers in a web farm behind an F5. There are approximately 25 AppPools on each of these servers. On servers 1 - 5 the apppools are consuming approx 500MB Private Bytes, and 5GB Virtual Bytes. On server 6 the apppools are consuming approx 800MB Private Bytes, and 8GB Virtual Bytes. I can not seem to figure out why we have this difference. The code is the exact same on each box. We replicate the apphost.config between the boxes, so the Appplication Configs are identical. The only difference seems to be that this box consumes more RAM, and in turn ends up using a lot more CPU. During Black Friday we observed the CPU on server 6 spiking to 100% and noticed that the % Memory Commit was also near 100%, while the rest of the farm was at closer to 50% utilization. Pulling the 6th server from the load balancer dropped CPU/Memory on the 6th server back to normal, and did not cause a noticeable strain on the other servers.

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• Excel - Dynamic row reference based on the row I paste a formula into?

  - by michaelmichael

  I have a simple, oft-used formula that I paste as plain text into spreadsheets I receive. It looks something like this: =IF(D8="FOO", "BAR", "BAZ") It looks in D8 for the word "FOO". If it finds it it will show "BAR". If it doesn't it will show "BAZ" It works great. The problem is I have to paste this formula as plain text into many spreadsheets. It should ALWAYS look in column D for "FOO", however I don't always want it to look in row 8. I'd like it to look at whatever row I'm pasting it into. For example, if I pasted the above formula into row 25, say, I would like it to automatically change to this: =IF(D25="FOO", "BAR", "BAZ") Is there any way to achieve this?

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• How can I use Android as a remote control for streaming?

  - by michael

  I would like to know if I can use Android to remote control streaming on my laptop? I would like to use my laptop as my streaming server and use my HDTV to view the stream. And I need some way to remote control my streaming server. I have read about http://maketecheasier.com/install-vlc-shares-in-Ubuntu-and-stream-videos-to-Android/2011/02/25 and http://code.google.com/p/android-vlc-remote/ but those are streaming to Android phone itself. I am just need something to remote control streaming to my TV. Is that possible?

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• Recommendations for SSD for server and database use?

  - by Tony_Henrich

  SSDs are a new technology and they are constantly improving. A lot of the posts here were posted in 2009 when SSDs where less mature and not as fast. What was recommend back then is probably out of date today because of better options. The SSD is used to hold SQL Server databases. Size is probably 128G. The database is used with a CMS and web server so web pages need to get their data and render as fast as possible. Which modern SSD is recommended for such a use? Is there an SSD better than Intel X-25 E/M in terms of performance/cost? (I am also evaluating cost between : RAM + UPS (semi persistent) vs SSD for same amount of gigabytes. No RAID is involved)

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• XDCAM HD 422 frame setting

  - by sebastian

  I have a question that you can hopefully answer me. I am trying to write a ffmpeg script that transcodes my clips in XDCAM HD 422 1080p24, and it works fine as long as the original file has 24 fps, but is there a way that I can set an option which says "even if the original file has 25 fps I will transcode it in 24 fps". I have tried it, like I said it works fine as long as the original clip has 24 frames, but as soon as the original clip has another framerate, he can not convert it to 24 frames. I have tried using -r 24 which normally settles the framerate, but here it doesn't work. I am using the -vtag xd5c

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• Computer connects to lan, but not the internet

  - by Jay

  I have a computer with Vista Home that can connect to the router, but it cannot get on the internet. I cannot ping google.com, the request times out. I've tried this on two separate networks and have no trouble with other computers connecting. I've renewed ipconfig, reset winsock, updated the wireless adapter, and the hosts file looks fine. I've tried disabling the firewall as well as a direct wired connection. I did a scan with Norton and it didn't find anything. Is there anything else I can try before resorting to a system restore? Update (Copied from Answer) Windows Update was able to find updates and install them (though, they could have already been downloaded previously). When I pinged Google by using their IP 66.102.9.103, it said it lost 25 percent of the packets. I successfully flushed the DNS but it didn't help. Also, I found safe mode with networking works fine.

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• 1K incoming http post requests per second, each with a 10-50K file

  - by Blankman

  I'm trying to figure out what kind of server setup I will need to support: 1K http post requests per second each post will contain a xml file between 5-50K (average of 25 kilobytes) Even if I get a 100 Mb/s connection with my dedicated box (they usually give 10 Mb/s but you can upgrade), from my calculations that is about 12K kb/s which means about 480 25kb files per second. So this means I need around 3 servers then, each with 100 Mb/s connection. Would a single server running HAProxy be able to redirect the requests to other servers or does this mean I need to get something else that can handle more than 100 Mb/s to proxy things out to the other servers? If my math is off I'd appreciate any corrections you may have.

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• Cannot send email from EC2 instance on port 587

  - by Tahsin Mostafiz

  I have written a mail service for our flask application that uses Celery and RabbitMQ to send emails (using gmail). I have got the celery consumer and producer communicating okay but I cannot get to send send emails. I am getting a socket.error: [Errno 101] Network is unreachable. I think this means that AWS is blocking port 587 - even though in my security group I opened both ports 587 and 25 (inbound and outbound). Any reason why this is happening? Any help will be highly appreciated.

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• VMWare Lab Manager: What's the best way to build Library Configurations?

  - by mcohen75

  We're using Lab Manager within our QA group. We use it to quickly deliver environments we need for testing. We have 25 Templates, 14 Library Configurations and counting. To build up our templates we: Create a base template that is a bare bones version of Server 2008 + basic configuration (Windows Update, Firewall exceptions) Create a linked clone for each Server template we need (SQL Server 08, 05, etc) Repeat for other OS's, like Windows 7 and Windows XP Then we create configurations: Create a workspace configuration with multiple images in it (Say Server 08 w/SQL Server and Windows 7) Deploy the configuration and make some minor configuration changes Undeploy and Capture to Library How do we keep this manageable? When I need to update a configuration, should I: Rebuild it from templates Clone it to a workspace, make changes, recapture it to the library keep the configuration in my workspace (don't delete it after capturing it to library), deploy it to make changes and then re-capture to library

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• How to compile gcc-4.0 on Mountain Lion

  - by Frizlab

  So far I've successfully launched the configure, but when I type make, I get the following error, after some time (there's a lot which compile successfully): ld: unknown/unsupported architecture name for: -arch i686 /usr/bin/libtool: internal link edit command failed make[2]: *** [libgcc_s.dylib] Error 1 make[1]: *** [libgcc.a] Error 2 make: *** [all-gcc] Error 2 Is there a way to tell gcc not to compile itself for the i686 architecture? Here's my uname -a if it can help: Darwin Frizlabs-Computer.local 12.2.0 Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 2012; root:xnu-2050.18.24~1/RELEASE_X86_64 x86_64 PS: I know gcc-4.0 is ancient, but I do need it.

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• Can I install fresh Linux accross partitions (LUKS & LVM) and preserve/use existing home user?

  - by xtian

  With an existing LUKS encrypted logical volume partitioned hard disk dual boot to Windoz and Linux (Fedora 15), is it necessary to "start over" with the LUKS setup when upgrading the system? I recall some note about dividing the Linux installation over different partitions would help to preserve the home data in future update (I can't find this now) Before I try it, is this possible and intended use case for partitioning a Linux installation? # lsblk -fa NAME FSTYPE LABEL MOUNTPOINT sda [80G] +-sda1 [system W95 FAT 32] vfat +-sda2 ext4 /boot +-sda3 [52.4G] crypto_LUKS +-luks-de25ac97-6a32-4b79-a6a0-296a39376b3b (dm-0) LVM2_member +-cryptVG-root (dm-1) [21.5G] ext4 / +-cryptVG-swap (dm-2) [5.4MB] swap [SWAP] +-cryptVG-data (dm-3) [25.6G] ext4 /home

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• Problem with the hosts file under windows 7

  - by martani_net

  I updated some entries in the hosts file "C:\WINDOWS\System32\drivers\etc" to make google for example point to 127.0.0.1 # Additionally, comments (such as these) may be inserted on individual # lines or following the machine name denoted by a '#' symbol. # # For example: # # 102.54.94.97 rhino.acme.com # source server # 38.25.63.10 x.acme.com # x client host 127.0.0.1 localhost ::1 localhost 127.0.0.1 google.com This works fine under windows Vista, but not under Widows 7. When I type google, it goes directly to Google's website. For info, I am not using a proxy server. I think there are some temporary DNS settings that must be flushed, but I don't know how, anyone knows how to fix this? Thank you.

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• Calculate the number of ways to roll a certain number

  - by helloworld

  I'm a high school Computer Science student, and today I was given a problem to: Program Description: There is a belief among dice players that in throwing three dice a ten is easier to get than a nine. Can you write a program that proves or disproves this belief? Have the computer compute all the possible ways three dice can be thrown: 1 + 1 + 1, 1 + 1 + 2, 1 + 1 + 3, etc. Add up each of these possibilities and see how many give nine as the result and how many give ten. If more give ten, then the belief is proven. I quickly worked out a brute force solution, as such int sum,tens,nines; tens=nines=0; for(int i=1;i<=6;i++){ for(int j=1;j<=6;j++){ for(int k=1;k<=6;k++){ sum=i+j+k; //Ternary operators are fun! tens+=((sum==10)?1:0); nines+=((sum==9)?1:0); } } } System.out.println("There are "+tens+" ways to roll a 10"); System.out.println("There are "+nines+" ways to roll a 9"); Which works just fine, and a brute force solution is what the teacher wanted us to do. However, it doesn't scale, and I am trying to find a way to make an algorithm that can calculate the number of ways to roll n dice to get a specific number. Therefore, I started generating the number of ways to get each sum with n dice. With 1 die, there is obviously 1 solution for each. I then calculated, through brute force, the combinations with 2 and 3 dice. These are for two: There are 1 ways to roll a 2 There are 2 ways to roll a 3 There are 3 ways to roll a 4 There are 4 ways to roll a 5 There are 5 ways to roll a 6 There are 6 ways to roll a 7 There are 5 ways to roll a 8 There are 4 ways to roll a 9 There are 3 ways to roll a 10 There are 2 ways to roll a 11 There are 1 ways to roll a 12 Which looks straightforward enough; it can be calculated with a simple linear absolute value function. But then things start getting trickier. With 3: There are 1 ways to roll a 3 There are 3 ways to roll a 4 There are 6 ways to roll a 5 There are 10 ways to roll a 6 There are 15 ways to roll a 7 There are 21 ways to roll a 8 There are 25 ways to roll a 9 There are 27 ways to roll a 10 There are 27 ways to roll a 11 There are 25 ways to roll a 12 There are 21 ways to roll a 13 There are 15 ways to roll a 14 There are 10 ways to roll a 15 There are 6 ways to roll a 16 There are 3 ways to roll a 17 There are 1 ways to roll a 18 So I look at that, and I think: Cool, Triangular numbers! However, then I notice those pesky 25s and 27s. So it's obviously not triangular numbers, but still some polynomial expansion, since it's symmetric. So I take to Google, and I come across this page that goes into some detail about how to do this with math. It is fairly easy(albeit long) to find this using repeated derivatives or expansion, but it would be much harder to program that for me. I didn't quite understand the second and third answers, since I have never encountered that notation or those concepts in my math studies before. Could someone please explain how I could write a program to do this, or explain the solutions given on that page, for my own understanding of combinatorics? EDIT: I'm looking for a mathematical way to solve this, that gives an exact theoretical number, not by simulating dice

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• Running a script on startup before X starts in Ubuntu 9.10

  - by Epcylon

  I have a script that I want to run at startup to switch X-configs depending on location, but I can't seem to find out where to put it in order to get it to run before X is started. This results in me having to restart X to get it to run the correct config. Currently, my script is located in /etc/init.d/whereami, with symlinks in /etc/rc[2-5].d/S25whereami. I was trying to find out when X is started, in case the problem is simply the 25, but I can't seem to find the answer... Any help is appreciated.

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• Excel - Dynamic reference based on the row I paste into?

  - by michaelmichael

  I have a simple, oft-used formula that I paste into spreadsheets I receive. It looks like this: =IF(AND(D8="COMPLETE",E8=""),A8,"") It looks in D8 for the word "COMPLETE" and checks that E8 is blank. If both conditions are fulfilled it grabs the contents of A8. It works fine. The only problem with this is that I don't always paste it into row 8. Every spreadsheet is different. I usually end up spending a few seconds making the formula fit the current spreadsheet I'm working on by dragging the cell references to the appropriate row. Hence, my question: Is there a way to make an absolute row reference based on whatever row I paste into? For example, if I paste the above formula into a cell in row 25, the formula would automatically look like this: =IF(AND(D25="COMPLETE", E25=""), A25, "")

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• How can I sync Access databases and keep them up-to-date?

  - by user327472

  I have an Access database on my server. We split it up and use the front-end database for search data and adding new records or reports in local computer. If we update or add a new record, that writes to the back-end of database. I want to use this database in the other building with other servers. Also, those servers have no direct connection. How can I sync both back-end databases to keep the database data up to date? These details may be useful: It's a big amount of data - about 25,750 client records. I guess there are more than 25 tables at 80 MB.

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• let CRON send emails through SMTP ( debian squeeze )

  - by supernova

  i would like to send emails whenever a cronjob has completed, i read that this is possible with exim4. in /etc/alias i added the line myuser: [email protected] in /etc/exim4/update-exim4.conf.conf i set dc_smarthost='smtp.myserver.ip::25 and in /etc/exim4/passwd.client i set smtp.myserver.ip:[email protected]:mypassword my problem is that i can't see any login at my mailserver, and in the exim logs i saw a few lines with 2012-10-13 09:17:01 1TMvy1-0001fp-F2 ** [email protected] R=nonlocal: Mailing to remote domains not supported 2012-10-13 09:17:01 1TMvy1-0001fr-JE <= <> R=1TMvy1-0001fp-F2 U=Debian-exim P=local S=17426 are there any additional config settings i have to set? edit : i solved the prev. error by running dpkg-reconfigure, but now i'm facing the following error <root@debian> R=dnslookup T=remote_smtp defer (-53): retry time not reached for any host

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• Setup database for Unit tests with Spring, Hibernate and Spring Transaction Support

  - by Michael Bulla

  I want to test integration of dao-layer with my service-layer in a unit-test. So I need to setup some data in my database (hsql). For this setup I need an own transaction at the begining of my testcase to ensure that all my setup is really commited to database before starting my testcase. So here's what I want to achieve: // NotTranactional public void doTest { // transaction begins setup database // commit transaction service.doStuff() // doStuff is annotated @Transactional(propagation=Propagation.REQUIRED) } Here is my not working code: @RunWith(SpringJUnit4ClassRunner.class) @ContextConfiguration(locations={"/asynchUnit.xml"}) @DirtiesContext(classMode=ClassMode.AFTER_EACH_TEST_METHOD) public class ReceiptServiceTest implements ApplicationContextAware { @Autowired(required=true) private UserHome userHome; private ApplicationContext context; @Before @Transactional(propagation=Propagation.REQUIRED) public void init() throws Exception { User user = InitialCreator.createUser(); userHome.persist(user); } @Test public void testDoSomething() { ... } } Leading to this exception: org.hibernate.HibernateException: No Hibernate Session bound to thread, and configuration does not allow creation of non-transactional one here at org.springframework.orm.hibernate3.SpringSessionContext.currentSession(SpringSessionContext.java:63) at org.hibernate.impl.SessionFactoryImpl.getCurrentSession(SessionFactoryImpl.java:687) at de.diandan.asynch.modell.GenericHome.getSession(GenericHome.java:40) at de.diandan.asynch.modell.GenericHome.persist(GenericHome.java:53) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:318) at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:196) at $Proxy28.persist(Unknown Source) at de.diandan.asynch.service.ReceiptServiceTest.init(ReceiptServiceTest.java:63) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:27) at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74) at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83) at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61) at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) I dont know whats the right way to get the transaction around setup database. What I tried: @Before @Transactional(propagation=Propagation.REQUIRED) public void setup() { setup database } - Spring seems not to start transaction in @Before-annotated methods. Beyond that, thats not what I really want, cause there are a lot merhods in my testclass which needs a slightly differnt setup, so I need several of that init-methods. @Transactional(propagation=Propagation.REQUIRED) public void setup() { setup database } public void doTest { init(); service.doStuff() // doStuff is annotated @Transactional(propagation=Propagation.REQUIRED) } -- init seems not to get started in transaction What I dont want to do: public void doTest { // doing my own transaction-handling setup database // doing my own transaction-handling service.doStuff() // doStuff is annotated @Transactional(propagation=Propagation.REQUIRED) } -- start mixing springs transaction-handling and my own seems to get pain in the ass. @Transactional(propagation=Propagation.REQUIRED) public void doTest { setup database service.doStuff() } -- I want to test as real as possible situation, so my service should start with a clean session and no transaction opened So whats the right way to setup database for my testcase?

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• Mac terminal: Resource temporarily unavailable

  - by user167108

  I'm getting an error message in the Mac Terminal when I try to run several different processes. I did some googling and looking on this site, and found out that it might be related to having too many processes running at one time. However, I'm getting these error messages when I only have a few windows open (much fewer than I was accustomed to having). Looking in activity Monitor, my %User number is at around 25%, and the %System number is around 15%. In the past, I have had both much much higher (until the people at the Apple store told me to keep an eye on it). So with these numbers lower now, what explains the Resource temporarily unavailable error message? heroku (cloud hosting) console -bash: fork: Resource temporarily unavailable -bash-3.2$ upon opening new window in the terminal sh: fork: Resource temporarily unavailable sh: fork: Resource temporarily unavailable trying to run -bash: fork: Resource temporarily unavailable

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• List files recursively and sort by modification time

  - by Problemaniac

  How do I list all files under a directory recursively and sort the output by modification time? I normally use ls -lhtc but it doesn't find all files recursively. I am using Linux and Mac. ls -l on Mac OS X can give -rw-r--r-- 1 fsr user 1928 Mar 1 2011 foo.c -rwx------ 1 fsr user 3509 Feb 25 14:34 bar.c where the date part isn't consistent or aligned, so a solution have to take this into account. Partial solution stat -f "%m%t%Sm %N" ./* | sort -rn | head -3 | cut -f2- works, but not recursively.

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• Running a script on startup before X starts in Ubuntu 9.10

  - by Epcylon

  I have a script that I want to run at startup to switch X-configs depending on location, but I can't seem to find out where to put it in order to get it to run before X is started. This results in me having to restart X to get it to run the correct config. Currently, my script is located in /etc/init.d/whereami, with symlinks in /etc/rc[2-5].d/S25whereami. I was trying to find out when X is started, in case the problem is simply the 25, but I can't seem to find the answer... Any help is appreciated.

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• PHP's page generation time takes 0.01s. 1/0.01 = 100; however i'm having problems reaching that number of request per seconds. Why?

  - by cedivad

  On average, my PHP page generation time is 10ms. So i should be able to execute 100 requests one after the other one (using a single core on the server, since that php is not multithreaded). However, i'm having problems reaching 50 pages per seconds. As of now i do 25 on avg., with a medium load. The application is really light, it consist in a read (<5KB) from a pool of SSDs, some read queries solved by indexes. Where should i look to solve this bottleneck?

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