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• Fetching e-mails into Redmine via IMAP

  - by Danilo Bargen

  I'm trying to fetch e-mails into Redmine via IMAP. The e-mails I'm generating look like this: FooBar Ltd 123456 http://example.com/Foobar-Ltd-123456.html Project: backend Tracker: Dataerror Beschreibung: This is the description =========================== CLIENT_IP: 192.168.1.215 HTTP_USER_AGENT: mozilla/asdfjköl I try to fetch them into Redmine via this command: rake -f /var/www/projects/redmine/Rakefile redmine:email:receive_imap \ RAILS_ENV="production" host=example.com port=993 ssl=true username=redmine \ password=1234 project=myproject tracker=other \ allow_override=project,tracker,category,priority \ move_on_success=read move_on_failure=failed But the e-mails get moved into the failed folder. I had this setup running some time ago with a different e-mail generator but pretty much the same template, and I can't figure out why it's not working. The permissions seem to be OK too. In order to further debug this issue, I need some logfiles. Are there any logfiles written by this command? Or are there any other suggestions to solve this issue? My environment: danilo@jabba:/var/www/projects/redmine$ RAILS_ENV=production script/about About your application's environment Ruby version 1.8.7 (i486-linux) RubyGems version 1.3.5 Rack version 1.0 Rails version 2.3.5 Active Record version 2.3.5 Active Resource version 2.3.5 Action Mailer version 2.3.5 Active Support version 2.3.5 Application root /var/www/projects/redmine Environment production Database adapter mysql Database schema version 20100819172912

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• Problem posting multipart form data using Apache with mod_proxy to a mongrel instance

  - by Ryan E

  I am attempting to simulate my site's production environment as closely as I can on my local machine. This is a rails site that uses Apache w/ mod_proxy to forward requests to a mongrel cluster. On my Mac OSX Leopard machine, I have the default install of apache running and have configured a vhost to use mod_proxy to to forward requests to a local running mongrel instance on port 3000. <Proxy balancer://mongrel_cluster-development> BalancerMember http://127.0.0.1:3000 </Proxy> For the most part, this is working fine. I can browse my development site using the ServerName of the vhost I configured and can confirm that requests are being properly forwarded to the mongrel instance. However, there is a page on the site that has a multipart form that is used to upload an image to the server. When I post this form, there is a delay of about 5 minutes and the browser ultimately returns a Bad Request Your browser sent a request that this server could not understand. In the error log for my vhost: [Tue Sep 22 09:47:57 2009] [error] (70007)The timeout specified has expired: proxy: prefetch request body failed to 127.0.0.1:3000 (127.0.0.1) from ::1 () This same form works fine if I browse directly to the mongrel instance (http://127.0.0.1:3000). Anybody have any idea what the problem might be and how to fix it? If there is any important information that I neglected to include, post a comment, and I can add to this question. Note: Upon further investigation, this appears to be a problem specific to Safari. The form works fine in Firefox.

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• Redmine subversion won't ignore certificate error even if told

  - by Pekka

  I have set up a copy of Redmine through the Bitnami Redmine Stack and am having trouble accessing a remote SVN repository through https. The trouble seems to be related to the fact that I don't have a signed certificate, and the certificate provided doesn't match the host name (I am accessing the same server through a number of host names). I am new to Ruby, Mongrel, Rails and Redmine. Following the advice in this forum thread, I changed the path Redmine uses to invoke the svn client in \apps\redmine\lib\ redmine\scm\adapters\subversion_adapter.rb from SVN_BIN = "svn" to SVN_BIN = "svn --trust-server-cert --non-interactive --config-dir c:/user/temp" I was hoping that the --trust-server-cert option would fix the certificate problem. However, I am still getting the following error message in mongrel.log: svn: OPTIONS of 'https://server.xyz:8443/svn/reponame': Server certificate verification failed: certificate issued for a different hostname, issuer is not trusted (https://server.xyz:8443) Does anybody know what to do about this? Additional info: I re-started the mongrel service after each change I am sure the configuration change has taken effect because subversion has created a full configuration directory in c:\user\temp I can access the remote repository using command line svn no problem The remote repository runs on a Windows box with VisualSVN

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• Improving Performance of RDP Over LAN

  - by Jared Brown

  Architecture: A deployment of 6 new HP thin clients (Windows XP Embedded) with TCP/IP access to several new HP servers (Windows 2003 Server). Each thin client is connected over fiber optic to a Gigabit Cisco switch, which the servers are connected to. There are 10/100 Ethernet to fiber converter boxes on each end of the fiber cables. Problem: Noticeable lag over RDP while using the Unigraphics CAD package. 3D models take .5 to 1 second to respond to mouse actions. Other Details: Network throughput on each thin client's RDP session is 7288 kbps. RDP connection settings - color setting: 15k, all themes, etc. turned off. Local and remote system performance stats are well within norms (CPU, Memory, and Network). Question: Are there newer versions of terminal services or RDP I can use on my existing OSes? Are there compression algorithms, etc. that are well suited for a high-bandwidth LAN? Are there valid alternatives that will yield higher performance (i.e. UltraVNC with drivers installed)? Are there TCP/IP tuning options I can exploit?

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• WDS updating raid drivers in an already existing image WIM

  - by Tim

  Here is my current setup. WDS installed on Server 2008 R2 for the new driverstore and multicast features. A Windows Server 2003 32bit Standard image built to support previous DL360 models. A new HP DL360 G6 which has a new raid controller in it. I need to add the driver for the raid controller into my Server 2003 32bit standard install image but I can't seem to figure out the correct method to do so. So far I've tried the following: Mounting the image and placing the drivers into the Sysprep drivers folder, adding the PCI device codes into the sysprep.inf file and committing the changes to the image. Pushing the image to a DL360 G4, ensuring the driver is in the correct locations and re-sysprepping the image. Hoping that the new driverstore feature would magically work with 2003 (a guy can dream cant he?) Is there some standard method that I can use to update this image with the new drivers or do I need to start from scratch with an entirely new build? Thanks in advance.

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• Can I change the user id of a user on one Linux server to match another server in /etc/passwd?

  - by user76177

  I have a Rails application that is on a virtual machine (RHEL 6) and it's database is on dedicated hardware (also RHEL 6). The app server has an NFS directory from the db server mounted and accessible. It needs to write images to that server that are uploaded via the app. Background processes on the db server need to read and write to the same directory, as they perform resizing operations on the uploaded files. Right now none of this is working, because the user ids are different between the two systems. I only need this to work for this one application, so it is way too much overhead to put an LDAP system in place. Can I simply change the user id of this one user in one of the systems, or will that cause mass chaos? UPDATE: The fix worked, at least on local devices. Unfortunately the device I have mounted to the main db server still thinks my user id is 502 instead of 506. Do I need to remount that device, or is there an NFS daemon I can stop and restart to refresh it?

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• Laptops with easy heat sink service?

  - by Niten

  Can you recommend a current laptop model with easy heat sink access – or better yet, a removable air intake filter – making it easy to periodically clean out the dust and lint that always packs up in these things? Every laptop I've owned has eventually overheated on account of a clogged heat sink. (I suppose it doesn't help that I have a cat who loves to hang out where I'm working, or that my laptop is almost always running.) One of the things I really love about my current system, a Dell Inspiron 1420n, is how easy it is to service its cooling system: whenever I notice the fan starting to work harder and the CPU temperature climbing higher than it should be, I merely have to unscrew a single panel from the bottom of the machine, clean out the heat sink, and then I'm good for another few months. Which current models of the "business laptop" variety offer similar easy cooling system service? I'm looking for something roughly along the lines of: 14- or 15-inch display Nehalem-based CPU Solid construction – magnesium chassis or better (like the Inspiron) TPM (for BitLocker) ideal, but not mandatory Docking adapter ideal, but not mandatory Good battery life For example, the ThinkPad T410 would have been my top choice, but it seems like it would be a serious chore to service its heat sink. For the current MacBook Pros it looks downright impossible. No matter how nice the laptop is in other respects, it'll be of no use to me when it's overheating. So, any suggestions? Thanks in advance... (I'm constantly surprised that customers and manufacturers don't pay more attention to this feature, at least in the business laptop subcategory. In the last couple months I've fixed two friends' laptops which were also overheating due to clogged cooling systems; clearly I'm not the only one affected by this.)

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• Apache directory structure with multiple hosted languages.

  - by anomareh

  I just got a new work machine up and running and I'm trying to decide on how to set everything up directory wise. I've done some digging around and really haven't been able to find anything conclusive. I know it's a question with a variety of answers but I'm hoping there's some sort of general guidelines or best practices to go by. With that said, here are a few things specific to my situation. I will be doing actual development and testing on the same machine as the server. It is a single user machine in the sense that I will be the only one working on the machine. There will be multiple hosted languages, specifically PHP and RoR while possibly expanding later. I'd like the setup to translate well to a production environment. With those 3 things in mind there are a couple of things I've had in the back of mind. Seeing as it's a single user machine I haven't been able to decide whether or not I should be working on things out of my home directory or if they should be located outside of it. I'm feeling that outside of a user directory would be better as it would translate better to a production environment, but I'm also not sure if that will come with any permission annoyances or concerns seeing as I'll be working on the same machine. Hosting multiple languages seems like it may be a bit quirky. With PHP I've found you're generally just dumping the project somewhere in the document root where as something like a Rails app you have the entire project and you only want the public directory in the document root. Thanks for any insight, opinion, or just personal preference from experience anyone can offer.

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• Conditionally changing MIME type in nginx

  - by Peter

  I'm using nginx as a frontend to Rails. All pages are cached as .html files on disk, and nginx serves these files if they exist. I want to send the correct MIME type for feeds (application/rss+xml), but the way I have so far is quite ugly, and I'm wondering if there is a cleaner way. Here is my config: location ~ /feed/$ { types {} default_type application/rss+xml; root /var/www/cache/; if (-f request_filename/index.html) { rewrite (.*) $1/index.html break; } if (-f request_filename.html) { rewrite (.*) $1.html break; } if (-f request_filename) { break; } if (!-f request_filename) { proxy_pass http://mongrel; break; } } location / { root /var/www/cache/; if (-f request_filename/index.html) { rewrite (.*) $1/index.html break; } if (-f request_filename.html) { rewrite (.*) $1.html break; } if (-f request_filename) { break; } if (!-f request_filename) { proxy_pass http://mongrel; break; } } My questions: Is there a better way to change the MIME type? All cached files have .html extensions and I cannot change this. Is there a way to factor out the if conditions in /feed/$ and /? I understand that I can use include, but I'm hoping for a better way. Putting part of the config in a different file is not that readable. Can you spot any bugs in the if conditions? I'm using nginx 0.6.32 (Debian Lenny). I prefer to use the version in APT. Thanks.

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• Monit unable to start sidekiq on Opsworks server

  - by webdevtom

  I have used AWS Opsworks to create some servers. I have Sidekiq running as part of my Rails application. When I deploy Sidekiq restarts nicely. I am configuring Monit to watch the pid and start and stop Sidekiq if there are any issues. However when Monit trys to start Sidekiq I see that the wrong Ruby looks to be used. Oct 17 13:52:43 daitengu sidekiq: /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundler/definition.rb:361:in `validate_ruby!': Your Ruby version is 1.8.7, but your Gemfile specified 1.9.3 (Bundler::RubyVersionMismatch) Oct 17 13:52:43 daitengu sidekiq: from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundler.rb:116:in `setup' Oct 17 13:52:43 daitengu sidekiq: from /usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.3.4/lib/bundler/setup.rb:17 When I run the command from the cli Sidekiq launches correctly. $> cd /srv/www/myapp/current && RAILS_ENV=production nohup /usr/local/bin/bundle exec sidekiq -C config/sidekiq.yml >> /srv/www/myapp/shared/log/sidekiq.log 2>&1 & $> ps -aef |grep sidekiq root 1236 1235 8 20:54 pts/0 00:00:50 sidekiq 2.11.0 myapp [0 of 25 busy] My sidekiq.monitrc file check process unicorn with pidfile /srv/www/myapp/shared/pids/unicorn.pid start program = "/bin/bash -c 'cd /srv/www/myapp/current && /usr/local/bin/bundle exec unicorn_rails --env production --daemonize -c /srv/www/myapp/shared/config/unicorn.conf'" stop program = "/bin/bash -c 'kill -QUIT `cat /srv/www/myapp/shared/pids/unicorn.pid`'"

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• Computer loses all installed programs and appears to return OS-only state

  - by Jake

  This is a story regarding 3 laptops of different brand and models. On separate occassions, I configured each of these Windows 7 / Vista computers with the necessary configuration and applications (which are supposedly the same actually), e.g. join office domain, same windows updates, microft office etc. These machinese were configure in our office in Singapore, and then they were taken to India for use. Someday in India, when booting up the laptop, all went fine except when it reach the log in screen, it was no longer possible to login with domain credentials. Logging into the laptop local admin account will lead to discover that the machine has returned to "OS-only state". All the configurations and applications were gone. The actual user profiles are still in the C: drive so files can still be retrieved, but under Control Panel Uninstall Programs it is evident that at least the registry is corrupted. The above scenario happen to the first 2 laptops. For the third, the system reports "Operating System Not Found" on boot up. I cannot think of any reason except to suspect a power fluctuation issue. Question is, will a power issue create this behaviour? What else can cause this issue?

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• Is there any way to detect when nginx has completed a graceful shutdown?

  - by Daniel Vandersluis

  I have a ruby on rails application which is running on passenger and nginx, with one main webserver and multiple application servers. I am trying to update my deployment process in order to minimize (or ideally, remove) any downtime caused by the deployment. The main roadblock right now is that passenger takes some time to restart (ie. reload the application), so in order to get around this, I want to stagger my restarts so that only one app server gets restart at a time. In order to do this without losing any long running passenger processes, I am thinking I need to gracefully shutdown the app server's nginx instance, which will cause it to no longer accept new connections but continue to process the existing ones; as well, HAProxy will detect that the app server is down and route new requests to the other server. However, assuming that there is a long-running process, I am not sure how to detect when the graceful shutdown has completed so that I can start it back up. Since the shutdown is caused by sending a signal (ie. kill -QUIT $( cat /var/run/nginx.pid )), and the kill command will return immediately, I cannot combine commands (ie. kill ... && touch restarted), as the touch command will execute immediately, even if nginx hasn't completed its shutdown. Is there any good way to do this?

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• emacs error: "Symbol's value as variable is void: hostname"

  - by Florian Pilz

  After I installed emacs this error occurs every time on startup. It prevents me from installing plugins, e.g. auctex via aptitude. I already tried to install a plugin by hand (rails for ruby), but doesn't work. The error doesn't contain the message "hostname", but the hostname of my PC is displayed ("bloodredangel-ubuntu"). I changed my hostname to "bloodredangel", but the error message stays the same. While I changed my hostname I saw that in /etc/hostname were two entries: 127.0.0.1 bloodredangel-ubuntu I already asked this question in an ubuntu forum but they couldn't help. They recognised an misconfigured /etc/hosts file, which I corrected, but from time to time these incorrect configurations get attached by something. I didn't add them by hand, maybe it has something to do with the issue. The misconfigurations looked like this: 127.0.0.1 127.0.0.1 bloodredangel-ubuntu localhost.localdomain localhost 127.0.0.1 127.0.0.1:8080 bloodredangel-ubuntu localhost.localdomain localhost I didn't found a solution on the internet, so I hope I will find help here finally.

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• Error installing pygraphviz on OSX

  - by Neil

  I'm trying to get the graph-models to work (from django-command extensions) on Snow Leopard. It requires pygraphviz, which I installed via macports. After successful install I am getting this error: >>> import pygrahphviz Traceback (most recent call last): File "<stdin>", line 1, in <module> ImportError: No module named pygrahphviz >>> import pygraphviz Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/__init__.py", line 54, in <module> from agraph import AGraph, Node, Edge, Attribute, ItemAttribute File "/Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/agraph.py", line 19, in <module> import graphviz as gv File "/Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/graphviz.py", line 7, in <module> import _graphviz ImportError: dlopen(/Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/_graphviz.so, 2): Symbol not found: _Agdirected Referenced from: /Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/_graphviz.so Expected in: flat namespace in /Library/Python/2.6/site-packages/pygraphviz-1.1-py2.6-macosx-10.6-universal.egg/pygraphviz/_graphviz.so >>> Any suggestions?

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• How do I deny access to everybody but me in Windows 7?

  - by GregH

  I am trying to set up a file server on my my Windows 7 Pro system at home. I set up one common "Share" folder that I have shared/published. Within the share folder I want to have individual folders for me and my wife...that is only I can read/write my folder and only my wife can read/write to her folder and neither of us can read the contents of the other person's folder. Then I want to have a "public" folder where we can both read/write to contents of the folder as well as any sub-folders created, but my "kids" account can only read from this folder and sub folders. It seems really confusing to set up something like this and it really shouldn't. I am really confused between the "allow", "deny", and dimmed check boxes in the security tab. It seems that if I "Deny" access to "Everyone" on my private folder, then I don't even have access to it. Windows security seems backwards from the rest of the world's security models. If I am in two groups and I deny access to one of the groups but allow access to the other group then Windows security denies me access as I am in one of the groups that has access disallowed. Very confusing.

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• Officially announced RAM support size doesn't apply to one of twin rigs with just one difference

  - by Deniz

  It'll take a little long to describe my situation but here goes the story : In January 2009 we bought (the OEM parts) two similar systems with just one difference. One of them had a Phenom X4 cpu and the other one (mine) a Phenom X3 cpu. At the beginning we had problems with both systems to power them on whilst having all of their ram slots being full. We decided to install the systems with just 2 slots populated and later try to install the rest of ram sticks. Both systems did succeed to support 3 sticks. We tried many different procedures to make the systems work with their fourth ram slots being populated. We waited for new bios updates and flashed the boards when they were available, we tried different ram sticks with different frequencies etc. One day while we were trying to install the fourth stick, the X4 machine did accept it. The other one did not. The most mind boggling thing was that after one of my trials the X3 system begun to not operate with the third slot populated. Our boards did have AMD 770 chipsets and we even tried to change the board of the X3 machine with another 770 chipset board. Now my questions are : Should we change the cpu ? What is causing the X3 system to not accept the fourth (or now the third) ram stick ? The manufacturers sites do claim that this boards do accept 4 ram sticks (but they only tested them with certain ram brands and models). What are the limitations for maximum ram configurations on motherboards ? Are there some "rules of thumb" except frequency, voltage, chip type considerations for which we did check our parts ? Our boards are : Gigabyte GA-MA770-DS3 Sapphire PC-AM2RX780 - PURE CrossFireX 770

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• New keyboard for linux: Adesso Tru-Form or MS Natural Keyboard 4000?

  - by Andrea

  Hi folks! I'm going to buy a new ergonomic keyboard for my laptop. In the following, keep in mind I live in Italy. I considered the following models: Adesso PCK-308UB - Adesso Tru-Form™ Pro - Contoured Ergonomic Keyboard with TouchPad-PS2 Pro: has a built-in touchpad in the same position of my laptop somewhat cheaper than the alternative below Cons: the surface doesn't seem to be bowl-shaped. keys seem to lay on a straight slightly-inclined surface. It seems an idea used extensively in other ergonomic keyboards according to a few comments on the net, new Adesso keyboards seem to lack robustness, they're likely to loose small parts after a few weeks or months. Other users, instead, seem to never had any problem in years and swear by their quality and comfortability. Those who had problems, however, lamented a lack of responsiveness from the manufacturer. I'm not sure whether the keyboard, at least the standard keys, and the touchpad will both be recognized correctly under linux distros (I mostly use FC btw) last time I checked, Adesso didn't have local resellers in my country Microsoft Natural Ergonomic Keyboard Pro: recognized as one of the most comfortable keyboards reliable customer service operating in my country AFAIK there are several documented ways to get extra buttons work with linux Cons: it doesn't have a builtin touchpad and has a numeric keypad wasting space to reach mouse But there could be other keyboards I haven't considered yet, so here follows my ideal keyboard wishlist, ordered by priority linux compatible basic ergonomic design, which entails split tilted keyboard and pads advanced ergonomic design, like true-ergonomic's or kinesis , where special keys (like enter, caps-lock...) are placed symmetrically in the middle to be used by thumbs a builtin touchpad/trackball placed under the keyboard. I just love this on my notebook. I think it's pretty effective, since it allows my hand to rest naturally everytime I use it. Any opinion on this? high-quality switches, like cherry's (unsure about this one) additional programmable keys placed near usual ones, to simplify typing shortcuts TIA Andrea

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• Alternate way to connect a vpn through a MIFI

  - by questor

  This has gotten to be a major problem at our company and depending on who I ask, the problem either does not really exist (mfr. and vendor) or is insoluble ( according to most users including techs who know how to prove their point). The problem involves getting a normal Windows 7 system to connect to a normal Server 2008 R2 Server over a cellular router (usually called a Mifi). A very few brands/models appear to work but the majority cannot make the connection. Since it is a cellular device, there are many variables that come into play and I wondered if anyone had ever found a consistent way to either make one work or else prove to the providers that their equipment was at fault. They all specifically state “VPN use” on the sales brochures. But few if any work. And those that do are not reliable. From a standpoint of pure knowledge, I just wondered if anyone knew the real reason why they fail? Pptp, L2tp, IPsec doesn’t matter. I have not tried Shrew or OpenVPN and am using strictly MS Windows protocols. Plenty of Google Searches back up my complaints but none seem to be any closer to knowing "why" they fail, just that they do. This is a "quest for knowledge"question. I don't expect a solution. Just a reason for the problem if anyone has any ideas.

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• Why have trackballs almost disappeared? [closed]

  - by Gary M. Mugford

  One of the movement sensors in my Microsoft Trackball Explorer has failed and right now I am using a mouse. Ugggh! I'll got steal one of the various Logitech trackballs spread around the house, but they all have issues. The Trackman has a horrible placement for the scroll wheel. Others have marbles for the thumb rather than a big ball for the fingers and at least one trackball is working around here without having a scroll wheel at all! (The one at the dinner table, for when I dine alone). My question is, why have trackballs fallen into disfavour? Seems to me that trackballs are great for crowded desktops (you know, the one with keyboards, notes, pens and coffee cups), and for laptops with those hated overly-sensitive touchpads. But right now, it seems to be a choice between that Logitech Trackman and some Kensington models that lack scroll wheels. All I want is a nice big ball to manipulate with the fingers and two buttons on the thumb side with the scroil wheel between them. Placement of other buttons is completely optional. Is that asking too much?

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• What determines what resolutions a laptop is willing to output over VGA?

  - by Joshua McKinnon

  I'm responsible for several conference rooms and have setup 1080p projectors and I provide both HDMI and VGA connectivity. HDMI for DisplayPort and Mini-DisplayPort, and VGA as a fallback, universal option. Contrary to what I expected, people seem to have much more trouble with the HDMI than VGA, so VGA gets used a lot more than you'd think (even as most workstation laptops made in the last 3-4 years have DisplayPort or Mini-DisplayPort...). Also to my surprise, VGA outputs over 1080p on a 50ft cable run with very minimal degradation on certain laptops - other laptops just don't offer 1080p as a resolution choice and top out at 1600x1200 or something else. Specific example: a ThinkPad W530 will do 1080p, a W520 won't, over VGA. (both do 1080p over displayport/mini-DP) What determines what resolutions a laptop is willing to output over VGA? I'm thinking this will come down to either a video driver that says it supports only certain resolutions for output, or limitations of the RAMDAC (which wouldn't be in play, at least DAC wise, on a digital output, but WOULD on VGA, an analog output). The basic reason for the question is that I noticed, say, a ThinkPad W520 with 1080p built in display, will output 1080p fine over DisplayPort to a 1080p projector, but will cap out at 1600x1200 (practically the same pixel count, just a little shy) on VGA. Now, this wouldn't be surprising at all except SOME laptops have no issue outputting 1080p over VGA, even with lower native resolutions. Why do I care? Well if there's some way I could enable it... for situations where my users end up using VGA anyway, it's preferable for display mirroring if they can output their laptop's native resolution, which, you guessed it, is very often 1080p on 15" models. DISCLAIMER: This is primarily a curiosity, I'm not claiming 1080p over VGA is ideal by any means, but hey, if it works. I've seen HDMI start artifacting more over same-length, same gauge cabling (up to 50' run in certain rooms). If you think this is better suited to SuperUser, please move it, but this is framed from an IT standpoint of something that affects a real pool of users in a multiple conference room, 50+ deployed laptop scenario.

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• How to set the VirtualDocumentRoot based on the files within

  - by Chuck Vose

  I'm trying to set up Apache to use the VirtualDocumentRoot directive but my sites aren't all exactly the same. Most of the sites have a drupal folder which should be the root but there are a few really old drupal sites, a few rails sites, some django sites, etc. that want the Document root to be / or some other folder. Is there a way to set up VirtualDocumentRoot based on a conditional or is there a way to use RewriteRule/Cond to detect that / is the incorrect folder if there is a drupal folder or a public folder? Here's what I have so far: <VirtualHost *:80> # Wildcard ServerAlias, this is the default vhost if no specific vhost matches first. ServerAlias *.unicorn.devserver.com # Automatic ServerName, based on the HTTP_HOST header. UseCanonicalName Off # Automatic DocumentRoot. This uses the 4th level domain name as the document root, # for example http://bar.foo.baz.com/ would respond with /Users/vosechu/Sites/bar/drupal. VirtualDocumentRoot /Users/vosechu/Sites/%-4/drupal </VirtualHost> Thanks in advance! -Chuck

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• emacs error: "Symbol's value as variable is void: hostname"

  - by Florian Pilz

  After I installed emacs this error occurs every time on startup. It prevents me from installing plugins, e.g. auctex via aptitude. I already tried to install a plugin by hand (rails for ruby), but doesn't work. The error doesn't contain the message "hostname", but the hostname of my PC is displayed ("bloodredangel-ubuntu"). I changed my hostname to "bloodredangel", but the error message stays the same. While I changed my hostname I saw that in /etc/hostname were two entries: 127.0.0.1 bloodredangel-ubuntu I already asked this question in an ubuntu forum but they couldn't help. They recognised an misconfigured /etc/hosts file, which I corrected, but from time to time these incorrect configurations get attached by something. I didn't add them by hand, maybe it has something to do with the issue. The misconfigurations looked like this: 127.0.0.1 127.0.0.1 bloodredangel-ubuntu localhost.localdomain localhost 127.0.0.1 127.0.0.1:8080 bloodredangel-ubuntu localhost.localdomain localhost I didn't found a solution on the internet, so I hope I will find help here finally.

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• Has anyone used tools like (Chef, Salt, Puppet, CfEngine) to configure a 2008 Win Server with Sql?

  - by Development 4.0

  I have been looking into tools to automate the creation of servers. For two different reasons: Production Development machines I love the idea of the immutable server. I have seen the tools demoed and used successfully on *nix boxes running Rails or Lamp etc. Has anyone found a good way to do this in the Microsoft stack? I would like to get in on the fun and create scripts that will install Windows, patch it according to specification, deploy Sql Server create scripts to build out a database and just for fun deploy SharePoint and configure it, and then deploy a SharePoint solution to it. I can get part of the way, install Windows manually, install Sql Server manually, use Powershell to do all the configuration and setup. Install SharePoint and configure part of it, then powershell for the rest of the configuration and deploying a solution. I would love to have the ability to run one script though, or at least one unified process. I can, and have mostly used VM template images and then instantiated them, but the creation of the template is usually a manual step.

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• Problem posting multipart form data using Apache with mod_proxy to a mongrel instance

  - by Ryan E

  I am attempting to simulate my site's production environment as closely as I can on my local machine. This is a rails site that uses Apache w/ mod_proxy to forward requests to a mongrel cluster. On my Mac OSX Leopard machine, I have the default install of apache running and have configured a vhost to use mod_proxy to to forward requests to a local running mongrel instance on port 3000. <Proxy balancer://mongrel_cluster-development> BalancerMember http://127.0.0.1:3000 </Proxy> For the most part, this is working fine. I can browse my development site using the ServerName of the vhost I configured and can confirm that requests are being properly forwarded to the mongrel instance. However, there is a page on the site that has a multipart form that is used to upload an image to the server. When I post this form, there is a delay of about 5 minutes and the browser ultimately returns a Bad Request Your browser sent a request that this server could not understand. In the error log for my vhost: [Tue Sep 22 09:47:57 2009] [error] (70007)The timeout specified has expired: proxy: prefetch request body failed to 127.0.0.1:3000 (127.0.0.1) from ::1 () This same form works fine if I browse directly to the mongrel instance (http://127.0.0.1:3000). Anybody have any idea what the problem might be and how to fix it? If there is any important information that I neglected to include, post a comment, and I can add to this question. Note: Upon further investigation, this appears to be a problem specific to Safari. The form works fine in Firefox.

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• CMS/Wiki to use for a HTML5 video site

  - by Clinton Blackmore

  Greetings. I want to put up a website with instructive screencasts, and allow for people to add comments to them. I would like use the Video for Everybody technique, partly because I dislike Flash and because it helps in a small way to move the web forward [while being backwards compatable]. I recognize that HTML5 is still in draft, and that support for it varies. I do have some hosting space, and can run Perl, PHP, and Ruby on Rails applications, with a MySQL backend. I should mention that part of my working job involves running some web servers, and that I am a programmer by training (with only a limited familiarity with Perl and PHP, and none with Ruby). I should mention why I don't particularly want to go with a video hosting site (like YouTube or Vimeo): Flash Video Resolution and Quality [I'd like to put up 800x600 videos] Videos promote a club that is not stricly non-profit [ie. may fall afoul of Terms of Service] I'm already paying for web hosting, and free video hosting comes with time and bandwidth limits I don't want there to be two locations where you can comment on the video Now, having said all that, I'd be quite comfortable putting up my own HTML pages, except: that's so web 1.0! :) [ie. it does not allow for comments] I also want to do some blogging and possibly put up a wiki; the site will not be entirely screencasts So, can anyone recommend a CMS (or Wiki, or similar application) that I can customise for this purpose?

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