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• Handling UTF-8 with BOM in HTTP

  - by Alois Mahdal

  Say I have a script which at some point serves a plain text file as a content (right after "\n\n"). These files are provided by users, but I can expect they will be UTF-8. So I hard-wire Content-Type: text/plain; charset=UTF-8. But while I can teach users to save everything in UTF-8, I can't be very sure that the files will be without BOM ("\xEE\xBB\xBF"), as at least on Windows, this is not very clearly distinguished in common plain text editors and not every one of them uses the same default. So what about these files created on Windows, where they may/may not start with BOM? Should/will server or UA get rid of this debris for me? Or is it my task to prepare clean UTF-8, i.e. open each file and check whether BOM needs to be removed?

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• Installing mod_xsendfile on MAMP

  - by mail4alberto

  Hello, I'm having trouble installing mod_xsendfile on MAMP. I've used some sources to try to help me install it: http://iprog.com/posting/2008/04/compiling_mod_xsendfile_for_mac_os_x http://groups.google.com/group/phusion-passenger/browse_thread/thread/e6dac9d5ea0de9c1 I ended up installing apache20 via macports and used apsx command to create the module and then copy it into MAMP's modules folder. I was able to seem to load the module at least. But then I get this error in my apache logs: [Thu May 27 19:08:28 2010] [notice] child pid 68606 exit signal Bus error (10) [Thu May 27 19:08:41 2010] [notice] child pid 68607 exit signal Bus error (10) Can anyone help me out? :S

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• Configuring favicon with expires header in htaccess

  - by thehuby

  I have implemented Expires headers via mod_expires on my Apache server and have successfully created expires headers for most file types, however I am having trouble with the favicon. I initially tried adding a set of instructions for the .ico files but when checking via YSlow it has no expiry set. When this didn't work I amended it to be a GIF, however this seems to have the same issue. Other gif's on the website have correctly set expires headers (accoridng to YSlow at least). Can anyone shed any light on this situation?

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• Windows command line built-in compression/extraction tool?

  - by Will Marcouiller

  I need to write a batch file to unzip files to their current folder from a given root folder. Folder 0 |----- Folder 1 | |----- File1.zip | |----- File2.zip | |----- File3.zip | |----- Folder 2 | |----- File4.zip | |----- Folder 3 |----- File5.zip |----- FileN.zip So, I wish that my batch file is launched like so: ocd.bat /d="Folder 0" Then, make it iterate from within the batch file through all of the subfolders to unzip the files exactly where the .zip files are located. So here's my question: Does the Windows (from XP at least) have a command line for its embedded zip tool? Otherwise, shall I stick to another third-party util?

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• How to change the amount of RAM displayed in System Properties

  - by Nicu Zecheru

  I have this product that requires at least 1 GB Physical Memory in order to be installed. On my XP Pro machine I have 1 GB of RAM but in System Properties only 0.99 GB of RAM is displayed. The problem is that the product installer checks the memory displayed in System Properties (just a guess, not sure) and cannot continue the setup because it sees only 0.99 GB. Is there any way to change the displayed memory in the System Properties? Or how can I trick the installer to skip the memory check? Thanks.

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• How do I reassemble a zip file that has been emailed in multiple parts?

  - by Guy

  I received 3 emails each containing part of a zip file. The extensions end in .z00, .z01 and .z02. (Emailed as such to get around the typical 10Mb attachment limit per email.) I have put all 3 files into one directory. I can use both 7-zip and WinZip to open the first file (the .z00 file) and it lists the contents of the zip but when trying to extract the files both programs are reporting errors. What is the least error prone way of reassembling this zip and getting to the files?

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• Keep lan connection alive while going to sleep

  - by user18151

  Is it possible to keep lan connection alive when going to sleep? Although I would like a laptop independent(in general) answer, my laptop is Thinkpad T500 and the power manager shows in PCI options, the following three option regarding saving link state power: Off, moderate, maximum. Also instant resume apparently does something different, so that isn't much help either. I'm on Windows-7. Here's why: I'm a student, and currently I keep my laptop on almost all the time, but sometimes I sleep it and then I require to check something, so I turn it on. But then internet starts in at least a minute. So I avoid even putting it to sleep. I want that the internet connection should persist, so that I can put it to sleep to avoid power consumption.

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• Changes to talk/ytalk or alternative chat in the Linux terminal

  - by cascaval

  While looking for a piece of software that provides chat between 2 Linux server users logged in the terminal, I tried talk/ytalk. Unfortuntaley it provides chat between users on separate walls (each user has its own wall) and the messages lack timestamps. Is it possible to set it up so that at least timestamps are provided? Alternatively, is there any other software that could provide one wall on which users write messages prepended with time? Simple chat with messages listed in the order of submission would be ideal: 13:05:48 [bridgekeeper@...]: What is the air-speed velocity of an unladen swallow? 13:06:28 [cascaval@...]: What do you mean? An African or European swallow? I already tried wall and write but they don't fit the bill. OS: Debian 6.0

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• Unable to boot Ubuntu 64-bit in Virtualbox on Mac OS X

  - by Aamir

  I have latest generation Macbook Pro 7.1 (Intel Core 2 Duo) running Mac OS X 10.6.6. I installed Virtuabox 4.0.2 and tried to boot Ubuntu 10.10 64-bit iso. The boot options screen from the live CD came up: However when I continued to load the live session, or installer for that matter, I encountered the following error: This kernel requires an x86-64 CPU, but only detected an i686 CPU. Unable to boot - please use a kernel appropriate for your CPU. I am not sure if VT-x is enabled or is supported in the Core 2 Duo of my Macbook Pro. But at least, I have both I/O APIC and VT-x enabled for hardware virtualization as told in the Virtualbox manual.

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• vps like [load] graphs

  - by foober

  I investigated a couple of tools but they were really annoying and not polished. kSar for exampe is supposed to graph sar output, but it doesn't work. There's a perl script around (sar2rrd) that's supposed to convert sar output in rrd format and generate graphs. Doesn't work. (at least it doesn't like the output of "atsar" as per debian/ubuntu package). Tried munin but it wants to mess with http servers, and for some reason it didn't really work, too. It displayed errors in the webpage generated by the http server it put on port 4949. So, is there a simple install and forget tool to generate daily load,cpu,memory,network graphs? It seems strange to me that this problem has not been solved, maybe I'm looking in the wrong places

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• Dell docking station / Windows 7 not detecting HannsG JC199D via DVI

  - by user27150

  I have a laptop running Win7 that I use with a Dell docking station. I'd used it with XP for a couple years running dual monitors from the docking station, one from the VGA and one from the DVI. After upgrading to Win7, the monitor that's on the DVI out is not detected, using "rigorous detection" or otherwise. I've switched the cables to verify that it's not the monitor at fault-- but I can't find any info on why the monitor wouldn't be detected. I've got the latest and greatest Nvidia drivers installed (at least, as far as Windows update is aware). Leaving the laptop lid partly open does allow Windows to detect the laptop's native screen as well as the VGA monitor, but never the DVI. The monitors are HannsG JC199Ds. Any ideas? Thanks!

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• How can I use fetchmail (or another email grabber) with OSX keychain for authentication?

  - by bias

  Every fetchmail tutorial I've read says putting your email account password clear-text in a config file is safe. However, I prefer security through layers (since, if my terminal is up and someone suspecting such email foolery slides over and simply types "grep -i pass ~/.*" then, oops, all my base are belong to them!). Now, with msmtp (as opposed to sendmail) I can authenticate using the OSX keychain. Is there an email 'grabber' that lets me use Keychains (specifically the OSX keychain) or at least, that lets me MD5 the password? This is a duplicate of my unanswered question on serverfault. I've put it on superuser because I'm doing this on a personal computer (viz. with OSX) so it's more of a superuser question.

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• Can dd-wrt or tomato keep track of GB usage per billing period per device?

  - by Sam Hasler

  I want to be able to track the usage of each device connecting to our router so we can split up the ISP bill by usage. Can dd-wrt or tomato provide the stats I'd need to do this? Update: After a bit of googling I'm aware of a much better answer than the current one. However I suspect there's probably more answers out there for other firmwares so in the interests of getting a more diverse set of answers—­and, I'll admit, because I'm getting tired of reading through obtuse firmware documentation—I've put up a bounty. If the only answer added is the one I've found I'll be happy to accept it for the bounty, otherwise I'll add it and accept it myself, but I'm hoping for an even better answer, or at least some options for other firmwares as from looking I've seen a few other people have asked for this and there doesn't appear to be a definitive answer, let's make this it! Go lazywebs! (Sorry. I've always wanted to say that.)

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• ASP.NET MVC hosting recommendations

  - by chris

  I'm looking for recommendations for hosting an asp.net MVC application. Obviously, we need to be able to have access to configure IIS directly - I'd prefer not to have to go thru a control panel. The web server needs to have a dedicated IP, since some clients will be accessing it via IP. We need at least a SQLServer 2005 database, ideally on the same box. Load and usage will be pretty low, so a virtual machine will probably be fine. Does any one have any recommendations that meet the above constraints?

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• How can I allow individual developers to have their own space to create git repositories?

  - by Jason Baker

  I have a server that is essentially a gitosis setup. I have a git user that has access to all the shared repositories. What I would like to do is have each developer be able to have their own "area" on this server to create their own repositories. I'd like these areas to be able to be viewable via gitweb. How can this be done that would require the least maintenance in terms of adding users and repositories? One obvious solution would be to just allow each developer to create repositories on the git login and have branches named something like <devname>-<reponame>. But I could see this getting unmanageable as the number of developers grows.

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• Best configuration and deployment strategies for Rails on EC2

  - by Micah

  I'm getting ready to deploy an application, and I'd like to make sure I'm using the latest and greatest tools. The plan is to host on EC2, as Heroku will be cost prohibitive for this application. In the recent past, I used Chef and the Opscode platform for building and managing the server infrastructure, then Capistrano for deploying. Is this still considered a best (or at least "good") practice? The Chef setup is great once done, but pretty laborious to set up. Likewise, Capistrano has been good to me over the past several years, but I thought I'd take some time to look around and seeing if there's been any landscape shifts that I missed.

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• Why didn't cable select work?

  - by jldugger

  I got roped into doing tech support for a friend of the family. Obviously I'd already failed to hide my powers, ala Penny Arcade. Anyways, the guy bought a DVD burner OEM from Microcenter, and asked me to install it. So I stopped by before and thought I'd be slick and use Cable Select on the jumpers. I didn't get a chance to test it before it I had to leave, and it seems that this didn't work. I came back this week to investigate, and he explains he's confused how none of the software he downloaded was able to burn. So on a whim I switch it to explicit master / slave, and it starts working fine. Whoops. Well, at least it's not the extra crap he found and downloaded for free from the internet. Why doesn't setting both jumpers to Cable Select solve this?

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• Alternative shell apps for OS X

  - by Joseph Silvashy

  This might sound ridiculous, but my eyes are tired of looking at the crappy font rendering in OS X's Terminal.app, is there anything you guys recommend? I know it's like one of those things that you can easily say, "It's shell! what more can you ask for!" but really, all these great methods for rendering fonts and anti-aliasing, and we developers haven't even integrated that into our most trusty tool... at least that I know of. Anyhow, let's discus shell alternatives, thoughts?

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• What is the maximum number of TCP connections I can have in Windows Server 2008?

  - by evilfred

  I would like to have as many connections (single connections from many different clients) as humanly possible in a server running on Windows Server 2008, in order to support a Comet-style application. The application is written in C#. The connections will not be chatty, they just need to be open (and stay open). Buying boatloads of memory and fast CPUs are not a problem. As far as I can tell, I will be limited to 65k simultaneous open connections per NIC - the maximum number of ports. Is this accurate? Or can I go beyond 65k connections / NIC somehow? It seems like there are server products for Linux at least that support hundreds of thousands of connections. How do they do this?

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• SonicWall HA "gotchas"?

  - by Mark Henderson

  We're looking to move away from PFSense and CARP to a pair of SonicWall NSA 24001 configured in Active/Passive for High Availability. I've never dealt with SonicWall before, so is there anything I should know that their sales guy won't tell me? I'm aware that they had an issue with a lot of their devices shutting down connectivity because of a licensing fault, and they have an overtly complex management GUI (on the older devices at least), but are there any other big "gotchas" that I need to be aware of before committing a not insubstantial amount of money towards these devices? 1If you're outside the US, the SonicWall global sites suck balls. Use the US site for all your product research, and then use your local site when you're after local information.

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• How to automatically resume php-fpm?

  - by alfish

  I am using nginx+php-fpm on Debian Squeeze for a busy server and have had great difficulty to deal with maximum connections being reached. Here the problem is that php processes sometimes just die randomly under high load and leave the server with no php process. Then I need to manually restart php5-fpm service to bring back the server to life. I am wondering how to avoid this to happen, or at least treat the symptoms by restarting the php5-fpm automatically whenever there is not php process left to listen to incoming requests. My relevant configs are: pm = dynamic pm.max_children = 1400 pm.start_servers = 10 pm.max_spare_servers = 20 pm.process_idle_timeout = 1s; #not sure it will be useful when pm=dynamic pm.max_requests = 100000 request_terminate_timeout = 30 I appreciate your suggestions to cope with this nasty problem.

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• Network-Backup-Software with file versioning and web-interface

  - by dlang

  Dear All! I would like to backup our business-data to a remote backup-server. We would like to set-up our own backup-server running on any operating system (windows appreciated) which comes with a web-interface, that enables to restore individual versions of one file. Because budget is limited, an open-source software or at least a cheap software is a must! Unfortunately I couldn't find even a single software, which fulfills the requirements of file versioning and web-interface for single file-restore. Do any of you have already set-up such a system? Best regards, Daniel Lang

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• Does LDAP fit the role of a user database for an application?

  - by Spredzy

  I (my company) run a webservice that integrates pieces of few entreprisey-level software. Most of them offer different type of authentication but all offers at least LDAP. I was wondering if storing my application users directly in an LDAP directory would be a good idea. This way all the application I am using could rely on it for authentication purpose. I am aware that LDAP is not a database per se, but it is a datastore. I am also aware that there is no kind of constraints thus deleting a user on the LDAP directory won't do anything on my actual data, but this case would be taken care of with an extra process. My main question here is : is there any reason why I shouldn't use LDAP as my users database ?

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• Installing ruby 1.9.1 on OS X with RVM, getting error I can't make sense of

  - by Pselus

  I'm trying to update my ruby install on Leopard to at least 1.9.1. I found a tutorial that tells me how to do it with RVM and I get as far as downloading, configuring and compiling the version I want, but during the compile I get errors. When checking the make.error.log file this is the message I get: [2010-11-07 13:43:44] make main.c: In function ‘objcdummyfunction’: main.c:19: warning: implicit declaration of function ‘objc_msgSend’ main.c: At top level: main.c:19: warning: ‘objcdummyfunction’ defined but not used eval.c: In function ‘ruby_cleanup’: eval.c:139: warning: passing argument 1 of ‘ruby_init_stack’ discards qualifiers from pointer target type gc.c: In function ‘garbage_collect_with_gvl’: gc.c:597: warning: cast from pointer to integer of different size w: illegal option -- L usage: w [hi] [user ...] make: [libruby.1.9.1.dylib] Error 1 (ignored) readline.c: In function ‘username_completion_proc_call’: readline.c:1159: error: ‘username_completion_function’ undeclared (first use in this function) readline.c:1159: error: (Each undeclared identifier is reported only once readline.c:1159: error: for each function it appears in.) make[1]: *** [readline.o] Error 1 make: *** [mkmain.sh] Error 1 I have no idea what any of that means. Help?

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• Thunderbird: change selected email highlight color (when no focus)

  - by Rabarberski

  Is it possible to change, in the message list of Thunderbird 3.0, the highlight color of the selected message when the list does not have the focus? The highlight color for the selected row is blue when the list has the focus, this is very clear. But when the list does not have the focus (e.g. after when you click in the message preview area), the highlight color is dark grey. However, this dark grey doesn't really stand out against the alternating row highlighting in the list (at least not on my laptop's LCD screen), making it difficult for me to quickly locate the message I've selected. So, any way to change this dark grey highlighting?

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