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• How do you redirect pages from a directory to a subdirectory?

  - by kezzman11

  I had recently moved all the content on my website from being in the www.mysite.com/shop directory to being in the root directory. This means that I needed to redirect any request to visit a page with the /shop directory back to the same page in the root directory eg. www.mysite.com/shop/categories/washroom to www.mysite.com/categories/washroom This needed to happen with all pages in my site that were previously using the /shop directory. I was given a solution on here which was: RedirectMatch (^/shop/)(.*) http://www.mysite.com/$2 and it works perfectly however now I have had to switch back to using our old version of our software which is located at the /shop directory so I need the complete opposite redirect now eg. www.mysite.com/categories/washroom to www.mysite.com/shop/categories/washroom Can anyone help me please?

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• How does MySQL 5.5 and InnoDB on Linux use RAM?

  - by Loren

  Does MySQL 5.5 InnoDB keep indexes in memory and tables on disk? Does it ever do it's own in-memory caching of part or whole tables? Or does it completely rely on the OS page cache (I'm guessing that it does since Facebook's SSD cache that was built for MySQL was done at the OS-level: https://github.com/facebook/flashcache/)? Does Linux by default use all of the available RAM for the page cache? So if RAM size exceeds table size + memory used by processes, then when MySQL server starts and reads the whole table for the first time it will be from disk, and from that point on the whole table is in RAM? So using Alchemy Database (SQL on top of Redis, everything always in RAM: http://code.google.com/p/alchemydatabase/) shouldn't be much faster than MySQL, given the same size RAM and database?

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• Keeping rackspace vserver alive

  - by mit

  It appears to me that rackspace somehow freezes cloud VMs after some idle time. This means the first page request to a php page takes much longer to respond than the subsequent requests. I am actually querying a machine with wget from a different host now to keep it "alive". But I wonder what frequency would be necessary. Does anyone know the time period after which they send a VM to "sleep"? I guess it would be some minutes. EDIT: There is no caching involved on the php site. It just recently moved from another vhost and there was never such latency on the first request.

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• New Session Failed

  - by PhilPursglove

  We've started to see instances on our Intranet server where for any page the server just responds with the error page 'HTTP/1.1 New Session Failed'. It seems we can fix it by running IISRESET but this feels like we're only treating the symptom. The server is a virtualised server running IIS6 on Windows Server 2003 with 0.5Gb of RAM. Our Intranet is written in ASP, but we also have ASP.NET 2.0 applications running on the web site. The site is set up for Anonymous and Integrated Authentication. What causes IIS to get into this error state? Could the server be saturated with requests i.e. we need to scale out and move some applications onto another server? I've seen KB210842 but I'm not sure it applies as that is applicable to IIS 4

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• Laptop connects to other network but not to my home wireless

  - by Nilesh

  My home network's wireless SSID is say "XYZ" I also have an ethernet wire from the same router. I have two laptops A and B Earlier both A and B were able to connect to my home internet through the ethernet and wireless. Suddenly, the laptop B can no longer connect to XYZ or through ethernet. When I do plug the wire, i get the connection icon all green but when I try to access any web page it errors out (page not found) But strangely laptop B connects to my neighbours wireless SSID "ABC". I have also tested laptop B with other networks and it connects fine. Laptop A and many other devices still connect fine with my home wireless "XYZ" Strange thing is when my laptop B connects wireless through XYz, it gets the IP address but then none of the browsers (chrome,firefox, IE) can show any web pages. What settings should I be checking on laptop B that is preventing it to connect to my home internet. Thank you

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• My Tablet PC has a jog dial (typically used for scrolling up and down) but it does not work by defau

  - by techtechmo

  I have an HP Compaq TC4400 and I recently was able to make most of the Tablet PC functions work in Ubuntu 9.10. (The step-by-step guide can be found in my blog.) Unfortunately I have yet to make the jog dial work. This would be particularly useful for scrolling up and down websites and documents when the TC4400 is in slate mode (with no access to the keyboard). I would be much obliged if anybody could tell me: How to find out the input button/key assignment that Ubuntu 9.10 has for jog-up and jog-down; How to assign jog-up to scroll up (D-pad key UP, or PAGE UP) and jog-down to scroll down (D-Pad key DOWN, or PAGE DOWN). I am using xbindkeys to assign different shortcuts to the quick launch buttons, perhaps I could use the same program for the jog dial? I would have done that, except I do not know how to find the proper button/key assignment for xbindkeys to use. Thanks in advance!

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• Automatically mount a remote folder on boot

  - by Andrew

  I'm trying to mount a Windows folder on my Ubuntu machine on start up. I've tried following this page here, modifying /etc/fstab and appending sshfs#my_user@remote_host:/path/to/directory <local_mount_point> fuse user 0 0 to it, but it fails; on start up, I get an error saying that the mounting failed, and I can press S to skip or M to recover manually. I also tried following this page here, appending /usr/bin/sshfs -o idmap=user my_user@remote_host:/path/to/directory <local_mount_point> to the /etc/rc.local file, but this doesn't help either; Ubuntu just boots up normally without mounting. I have Cygwin installed on my Windows machine, and I can run everything smoothly, such as sshing without passwords, and mounting it manually. I've also tried to run the modified rc.local file $ /etc/rc.local, and it works perfectly, but I just can't seem to get the folder mounted on start up. Can someone help me?

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• Running Multiple sites with multiple domains apache

  - by PsychoData

  I am having a rough time running apache and using multiple domain names here is a snippet of my config file. I keep getting a error saying that NameVirtualHost has no VirtualHosts. I want them both running on the same IP and I'm not sure why this doesn't work. I've been digging through the documentation for VirtualHosts, NameVirtualHost, and apache's page about name based virtual hosting. That example in the name based page is almost exactly my config! What am I doing wrong? Listen *:80 NameVirtualHost *:80 <VirtualHost *:80> ServerName www.sample1.net DocumentRoot /var/www/sample1-net </VirtualHost> <VirtualHost *:80> ServerName www.example2.net DocumentRoot /var/www/example2-net </VirtualHost>

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• My site was recently attacked. What do I do?

  - by ChrisH

  This is a first for me. One of the sites I run was recently attacked. Not at all an intelligent attack - pure brute force - hit every page and every non-page with every extension possible. Posted with garbage data to every form and tried to post to some random urls too. All tod, 16000 requests in one hour. What should I do to prevent/alert this kind of behavior? Is there a way to limit the request/hr for a given ip/client? Is there a place I should be reporting the user to? They appear to be from China and did leave what seems like a valid e-mail.

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• convert serveral image files to a single djvu file

  - by user62046

  Suppose I have serveral BMP image file, say 001.bmp, 002.bmp,..., 100.bmp. I want to convert these files to a single djvu file, whose first page is the content of 001.bmp, the second page is the content of 002.bmp...etc. What is the best way (software) to do this task? I don't want to upload those image file to a server, since it takes too much time. On the other hand, I am not restricted to use BMP files, I can also work with PNG or JPG files.

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• iis7 .net webservice 404 error

  - by agilenoob

  I have a webservice /test/Service1.asmx in the same folder as a page /test/test.aspx. The page works fine but I get the message bellow for the services in the same location. I know the file is there and the url is correct, and I have added the script module and managed handler as well. If anyone knows what I'm missing here I'd appreciate it Server Error in '/' Application. The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. Requested URL: /test/Service1.asmx Version Information: Microsoft .NET Framework Version:2.0.50727.4200; ASP.NET Version:2.0.50727.4016 FAILED REQUEST LOG: ModuleName ManagedPipelineHandler Notification 128 HttpStatus 404 HttpReason Not Found HttpSubStatus 0 ErrorCode 0 ConfigExceptionInfo Notification EXECUTE_REQUEST_HANDLER ErrorCode The operation completed successfully. (0x0)

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• Bugzilla random lag and CPU usage

  - by Serty Oan

  Here is the configuration : Bugzilla (3.4.2) application running on a Ubuntu server 8.04 with Perl 5.8.8. Here is the problem : Sometimes (randomly), pages take very long to load. It can be any of the login page or query.cgi page or buglist.cgi... etc... Using top on the server, I tried to see what was wrong, and saw that sometimes a bugzilla script would use 30% memory and last pretty long (1 to 5 seconds) and sometimes not even show in the list because it responded too quickly or just use 2%. The mysqld process does not seems to be the problem.

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• Sonicwall NSA 3500, public ip for SSL VPN clients is not visible

  - by SlyMcFly

  I have a Sonciwall NSA 3500 and I'm setting up the SSL VPN according to this guide. I get through setting up the Sonicwall router, but then to test it says "Users can now go to the public IP of the sonicwall. Notice the new “click here for SSL login” hyper link". However, when I go to the public ip of the Sonicwall I don't get a web page, it just times out. Is there some other setting that I'm missing in order to make the SSL VPN login page public?

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• Wget site mirror, links with rel="<content>" not followed

  - by Pacifika

  Whilst creating a site mirror using wget 1.12 on Ubuntu links with a rel attribute set are not downloaded: <a href="link" rel="tag">text</a> Rel="tag" is a microformat (By adding rel="tag" to a hyperlink, a page indicates that the destination of that hyperlink is an author-designated "tag" (or keyword/subject) for the current page). My WordPress theme uses this for link to tags, so 99% of the site is ignored. Edit: it turns out all my permalinks use rel="bookmark" and are skipped as well. I'm using the following wget command (this ignores robots.txt and also follows nofollow links): wget -mkp -e robots=off http://site How do I make wget follow links with rel set?

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• Clean URLS with mod rewrite and URL Encoded characters causes 404?

  - by Richard JP Le Guen

  I have a web site using mod_rewrite to get some clean urls and custom 404 pages. My .htaccess file looks like this: <IfModule mod_rewrite.c> RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ index.php?clean_url=$1 [QSA,L] </IfModule> What puzzles me is that if the URL contains a %2F (url-encoded /) the server seems to force a 404. As an example, http://example.com/category/article would be a normal article, but then http://example.com/category%2farticle gives a server-generated 404 page. (not the custom 404 page) I wouldn't have expected this... why this is happening? Is there a way around it?

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• Hiding a HTTP Auth-Realm by sending 404 to non-known IPs?

  - by zhenech

  I have an Apache (2.2) serving a web-app on example.com. That web-app has a debug-page reachable via example.com/debug. /debug is currently protected with a HTTP basic auth. As there is only a very small user-base who has access to the debug-page, I would like to hide it based on IP address and return 404 to clients not accessing from our VPN. Serving a 404 based on IP-address only is easy and is described in http://serverfault.com/a/13071. But as soon I add authentication, the users see a 401 instead of a 404. Basically, what I need is: if ($REMOTE_ADDR ~ 10.11.12.*): do_basic_auth (aka return 401) else: return 404

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• Isopropyl okay to use on MacBook screen?

  - by Archagon

  I've always used a mixture of isopropyl alcohol and distilled water to clean my computer screens (50% water and 50% * 70% isopropyl). From what I understand, these are exactly the same ingredients used in most commercial screen cleaners, perhaps even more diluted. I recently used this solution to wipe off my 2010 MacBook Pro screen, and there don't seem to be any problems, but this support page explicitly says not to use isopropyl. Now I'm worried that I might have inadvertently damaged something. I'm also concerned because I once managed to dissolve the surface rubber lining of one of my mice with the isopropyl solution, and the MacBook Pro display has a thin rubber bezel keeping the glass in place. Why would Apple single out isopropyl on their support page? Should I be concerned?

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• Having Troubles Getting My Apache Server Online(NodeJS and Apache)

  - by Jeff Armingol

  I am new here. This is my situation. I am using nodejs modules, serialport2 and socket.io, because I am trying to forward the data from my arduino hardware through serialports. In my server side script, I read the data then forward it to the client side. Now I am using Apache to serve the html page,which is the client side. I am running Nodejs on port 8000 and Apache on port 80. It is running OKAY when I view it in my browser typing localhost:80. The data is appearing and seems fine. Now when I tried to get my Apache server online using a Free DDNS provider(http://www.noip.com/) and my port80, it loaded the webpage but there are no data appearing on the page. What seems to be the problem here? Really need your expertise and advice. Thanks in advanced!

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• PHP Script causing high CPU

  - by user20996

  I have a website which is causing me a major headache. There is one PHP script which is using far to much CPU, this only seem to happen when bots hit the site, I dont want to block all the bots because we need them. I have the the process manager output: Pid Owner Priority CPU % Memory % Command 16943 (Trace) (Kill) specialone 0 99.4 1.0 /usr/bin/php /var/www/specialone/page.php I ran strace -p 16943 on the process but it comes up with nothing. We have 2GB of RAM and the php memory_limit is set to 128M which should be enough. The trouble I have is the PHP code is a Framework and the culprit page.php pulls in a lot of other PHP files so I cant debug the PHP. Is there any way of finding out what the script is doing when its using so much CPU which will help me solve it?

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• show/hide specific scripts from browsers (adblock)

  - by user143822

  i'm using AdBlock Plus and Element Hiding Helper to show/hide dom element. But i don't understand how can i show/hide a specific javascript script from page. For example look this page: http://downloadzoneforum.net We have different div, class: maintitle. Every div maintitle have a spoiler. If click on - minus picture i can close the container. Default div maintitle have spoilers opened. But i want hide some spoilers using a filter. When i open Firefox, i want see hidden this spoilers from Extra Forum and Discussioni Varie Like this: How Can i Do this using Adblock or Element Hiding Helper or Another Solution?

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• 504 Gateway Time-out after php fatal error

  - by tiagojsag

  I'm using nginx and php-fpm to develop a symfony2 based website, under ubuntu 12.10 (yes, I know I'm using a beta OS). Everything was working out fine until, due to an error on my code, I called an unexisting function, and got the following: Fatal error: Call to a member function (....) This isn't a problem (it's a bug in my code, easily fixable), but after this, no other page loads. My browser just keeps trying to load the page from the webserver, until nginx timeouts (after +- 30s, which should be some default timeout) and returns: 504 Gateway Time-out Restarting php-fpm solves the issue. Nginx logs show a timeout message, and nothing appears on php-fpm logs, even if I set them to debug level. I tried switching from fpm to fastcgi, and the same thing happens. I've looked around, but all similar error are related to big requests/file handling, which isn't the case. All the pages on my website load in a few seconds, even under development conditions (no caching, etc).

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• How to understand cpu family/model/stepping fields in /proc/cpuinfo

  - by Victor Sorokin

  I have following in cpuinfo: processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 107 model name : AMD Athlon(tm) 64 X2 Dual Core Processor 5600+ stepping : 2 According to Wikipedia page there are two kinds of 5600+ -- one of 90nm technology, another of 65nm. How can I understand which one I have? There seem to be no direct correspondence between contents of cpuinfo and info on Wikipedia page. AMD site seems to use some other naming scheme for processors too. How can I map values of family, model and stepping from cpuinfo to the data available on Wikipedia/AMD?

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• How to print 4 index cards on a single A4 sheet in Word 2003

  - by Anna

  I have an index card designed in Word. It's fairly complicated with graphics, borders and background. The page layout has been set to landscape and with size set to 4x6. How can I print this, 4x per A4 landscape sheet? I cannot for the life of me work it out. The printer always seems to do a single card per A4 sheet, wasting 3/4 of the page. "Pages 1,1,1,1" will result in 4 sheets being printed. What am I doing wrong?

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• Windows 2008 additional disk going offline with reboots on Amazon EC2

  - by Ernest Mueller

  OK, so I took the stock Windows 2008 64-bit Amazon AMI and wanted to add a D: drive for page file space and crash dumps. I launched the instance with a second EBS volume attached as xvdf and went into Disk Management set it online, and added the page file and crash dump settings and all that works. But when I reboot, the box comes back up with that second drive as "Offline." How do I get that disk to automatically come online on reboot (or most notably, when I turn this into an AMI and launch more instances off it - I've tried that too and same deal with the D:).

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• What is the most relevant statistic information from Google Analytics for website optimalisation? [c

  - by Paulo

  I was wondering, what is considered the best statistic information from Google Analytics for website optimalisation? Example 1: Alot of visitors leave the website on a specific page, this could be because there aren't enough forwards / links on that page so that the visitors don't see a reason to continue their travel on the website. Example 2: Your traffic sources are 70% direct visits, 28% redirects from other websites and 2% by search engine. You could say that your website is not easily findable in search engines which could be interpreted as a sign that your keywords and/or meta description aren't good enough to be found. I'd like to hear some from other people!

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