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• Compiling GCC or Clang for thumb drive on OSX

  - by user105524

  I have a mac book that I don't have admin rights to which I would like to be able to use either GCC or clang. Since I lack admin right I can't install binutils or a compiler to /usr directory. My plan is to install both of these (using an old macbook that I do have admin rights for) to a flash drive and then run the compiler off of there. How would one go building gcc or clang so that it could run just off of a thumb drive? I've tried both but haven't had any success. I've tried doing it defining as many of the directories as possible through configure, but haven't been able to successfully build. My current configure script for gcc-4.8.1 is (where USB20D is the thumb drive): ../gcc-4.8.1/configure --prefix=/Volumes/USB20FD/usr \ --with-local-prefix=/Volumes/USB20FD/usr/local \ --with-native-system-header-dir=/Volumes/USB20FD/usr/include \ --with-as=/Volumes/USB20FD/usr/bin/as \ --enable-languages=c,c++,fortran\ --with-ld=/Volumes/USB20FD/usr/bin/ld \ --with-build-time-tools=/Volumes/USB20FD/usr/bin \ AR=/Volumes/USB20FD/usr/bin/ar \ AS=/Volumes/USB20FD/usr/bin/as \ RANLIB=/Volumes/USB20FD/usr/bin/ranlib \ LD=/Volumes/USB20FD/usr/bin/ld \ NM=/Volumes/USB20FD/usr/bin/nm \ LIPO=/Volumes/USB20FD/usr/bin/lipo \ AR_FOR_TARGET=/Volumes/USB20FD/usr/bin/ar \ AS_FOR_TARGET=/Volumes/USB20FD/usr/bin/as \ RANLIB_FOR_TARGET=/Volumes/USB20FD/usr/bin/ranlib \ LD_FOR_TARGET=/Volumes/USB20FD/usr/bin/ld \ NM_FOR_TARGET=/Volumes/USB20FD/usr/bin/nm \ LIPO_FOR_TARGET=/Volumes/USB20FD/usr/bin/lipo CFLAGS=" -nodefaultlibs -nostdlib -B/Volumes/USB20FD/bin -isystem/Volumes/USB20FD/usr/include -static-libgcc -v -L/Volumes/USB20FD/usr/lib " \ LDFLAGS=" -Z -lc -nodefaultlibs -nostdlib -L/Volumes/USB20FD/usr/lib -lgcc -syslibroot /Volumes/USB20FD/usr/lib/crt1.10.6.o " Any obvious ideas of which of these options need to be turned on to install the appropriate files on the thumb drive during installation? What other magic occurs during xcode installation which isn't occurring here? Thanks for any suggestions

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• How do you get past the Analysis to Paralysis when working on a new project?

  - by Cape Cod Gunny

  I've been struggling with how to get my project going. I've got an old software package that is in need of desparate rewrite. I haven't compiled the source code since 2004. It still sells, it's stable but does require the “Run this program in compatibility mode for:” on a lot of the newer windows systems. It's also one of those hard coded 640 X 480 screen resolution programs. Yuck! I can't seem to get started with this rewrite. I'm constantly fiddling around with different things. I'll play around with different fluid layouts for a while. Then I start looking around at how the main menu should work/look. I quickly find out that there's this thing called "Cool Bars" and I'll spend hours playing with that. Then I start thinking about stuff like "Oh I need to make sure that the screen sizes are preserved so when the application gets relaunched it remebers how the screens were positioned." Which leads to what happens if they have two monitors? Which leads to what happens if they have a quad screen? Yikes it's got to stop. I have always been a slow starter. I think about stuff long and hard up front. This has always plagued me. Once I get my mind made up then bam... I'm off and running. I'm looking for advice from some other one-person software companies that can help someone like me get off to a quicker start?

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• port redirection on solaris 11

  - by mo3lyana

  I'm trying port forwarding on solaris 11. I have a mechine behind a server that use solaris 11. I try to access that mechine from the external port, and forwarded by solaris 11 mechine to that machine using the ip filter. I give ipnat.conf configuration like this: rdr net0 0.0.0.0/0 port 1428 -> 10.1.18.178 port 22 but the response appeared when I tried to remote is connection time out, but if I redirect to a solaris 11 machine itself, the configuration is running well. I've enabled IP forwarding on the system root@solaris11:/etc/ipf# ndd -get /dev/ip ip_forwarding 1 root@solaris11:/etc/ipf# routeadm Configuration Current Current Option Configuration System State --------------------------------------------------------------- IPv4 routing enabled enabled IPv6 routing disabled disabled IPv4 forwarding enabled enabled IPv6 forwarding disabled disabled root@solaris11:/etc/ipf# ipadm show-prop PROTO PROPERTY PERM CURRENT PERSISTENT DEFAULT POSSIBLE ipv4 forwarding rw on on off on,off is there any configuration that I missed?

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• What is the lease irriating printer manufacturer?

  - by aireq

  Currently I have a Lexmark all in one printer/scanner which has some of the worse drivers I've seen for a printer. The installation takes forever. Then once it's installed the printer will only work if I keep the "Lexmark Productivity Studio" running in my system tray. Then later after I've scanned something 99% of the time the "Save to PDF" button doesn't do anything when I click it. It is also a wireless printer, but of course the only way to set any of the wireless settings is during the driver setup. So if my WEP key changes then I have to go off and reinstall the entire printer driver. Lately I tried refilling one of the ink cartridges with a key I bought off amazon, and now both the printer and the drivers keep complaining about being out of "Official Lexmark Ink" This comic from The Oatmeal pretty much sums up my feelings about consumer printers and their drivers. This question is, of course, pretty subjective but I'd like to know what (if any) consumer printer brands actual provide quality drivers and software with their printers.

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• Linksys WiFi usb dongle and linux woes

  - by MrStatic

  I have a Linksys WUSB54GC usb dongle and I have exhausted every thing I know about making this thing work in linux. I am using Fedora 13. Since it is not ready I can not view any networks. Any ideas would be great. tail of the system log Jun 2 20:14:35 localhost kernel: usb 1-7: new high speed USB device using ehci_hcd and address 8 Jun 2 20:14:35 localhost kernel: usb 1-7: New USB device found, idVendor=1737, idProduct=0077 Jun 2 20:14:35 localhost kernel: usb 1-7: New USB device strings: Mfr=1, Product=2, SerialNumber=3 Jun 2 20:14:35 localhost kernel: usb 1-7: Product: 802.11 g WLAN Jun 2 20:14:35 localhost kernel: usb 1-7: Manufacturer: Ralink Jun 2 20:14:35 localhost kernel: usb 1-7: SerialNumber: 1.0 Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::radio Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::assoc Jun 2 20:14:35 localhost kernel: Registered led device: rt2800usb-phy3::quality Jun 2 20:14:35 localhost NetworkManager[1367]: <info> found WiFi radio killswitch rfkill3 (at /sys/devices/pci0000:00/0000:00:1d.7/usb1/1-7/1-7:1.0/ieee80211/phy3/rfkill3) (driver <unknown>) Jun 2 20:14:35 localhost kernel: rt2800usb 1-7:1.0: firmware: requesting rt2870.bin Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): driver supports SSID scans (scan_capa 0x01). Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): new 802.11 WiFi device (driver: 'rt2800usb' ifindex: 6) Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): exported as /org/freedesktop/NetworkManager/Devices/4 Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): now managed Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): device state change: 1 -> 2 (reason 2) Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): bringing up device. Jun 2 20:14:35 localhost kernel: ADDRCONF(NETDEV_UP): wlan0: link is not ready Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): preparing device. Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): deactivating device (reason: 2). Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): supplicant interface state: starting -> ready Jun 2 20:14:35 localhost NetworkManager[1367]: <info> (wlan0): device state change: 2 -> 3 (reason 42) [root@localhost log]# iwconfig lo no wireless extensions. eth0 no wireless extensions. wlan0 IEEE 802.11bg Mode:Managed Access Point: Not-Associated Tx-Power=8 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:on

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• Cannot activate num pad at all

  - by ubuntico

  I have two accounts on the same machine. Num pad on one account it working normally e.g. I can turn it ON/OFF via NumLock button. The num pad on the other account on this machine stopped working. I cannot turn it on and the buttons work as the NumLock is turned off. This happened without me touching any setting or all. It just happened and now I cannot turn them on no matter what I try. I tried via console command numlockx on - did not help. Tried via UI setting - did not help either. Updated the system from 11.10 to 12.04, did not help either. I really do not know what to do except I make a clean reinstallation of the system which would take 2 days away from me. It's obviously the problem in this account only, as num pad works in the other account. Anyone with a good suggestion?

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• Transient network dropout for Xen DomU's

  - by Stephen C

  We've got a CentOS server running a cluster of virtuals. Occasionally the cluster's internal network drops out for a minute or so ... and then comes back. The problem is somehow related to the actual network traffic, but it is not a simple load issue. (The system is generally lightly loaded, and the problem occurs irrespective of actual load.) The setup: CentOS 5.6 on Dom0, various CentOS on the DomU's Hardware - a Dell R710 with a BroadCom NextXpress 2 NIC (sigh) using the latest drivers for the NIC from BroadCom Xen configured to use network-bridge and vif-bridge Some iptable tweaks to route an unrelated port to one of the virtuals. The system has one externally visible IP address, and Dom0 runs an Apache httpd configured with a number of virtual hosts each of which reverse proxies to web servers running on the virtuals. (The virtuals have to be NAT'ed, primarily because we don't have enough allocated public IP addresses.) The symptoms: Works fine most of the time. When someone tries to UPLOAD a large file to one virtuals, the internal network drops out ... for all virtuals: The Dom0 httpd sees a network timeout talking to the backend server on the virtual and reports a 502. A previously established ssh connection from Dom0 to any of the DomU's freezes. Our monitoring shows ping failures for traffic between virtuals. The Xen consoles to the DomU's do not freeze. No log messages in any log files that I can see, on either Dom0 or the DomU's ... apart from the Dom0 httpd logs. After a minute or so, the problem clears by itself. This is 100% reproducible. What we've tried: Downloading, building and installing the latest BNX2 driver on Dom0 Turning off MSI on the NIC - adding "options bnx2 disable_msi=1" to /etc/modprobe.conf Turning off tcp segmentation offload - "ethtool -K eth0 tso off". Sacrificing a black rooster at midnight. I've exhausted all my options apart from switching to KVM ... or slaughtering more roosters. Any suggestions?

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• Ubuntu 12.04 Precise on Dell Inspirion Duo

  - by Roman M. Kos

  I installed 12.04 version of Ubuntu on my Dell Inspiron Duo. After installing with help of program like UNetBootIn or smth like that. ( Besides i have no problem with kernel panic on chargin on/off like in 11.10. ) After that i followed with steps from here, in the first post here: http://ubuntuforums.org/showthread.php?t=1658635 There left one big problem with touchscreen: When i whant to drag with touchscreen like i`m doing it with mouse (for ex. selecting multile files with mouse) the selectable rectangular doesnot shows while im dragging, when dragging was finished (i put my finger off) it shows the rectangular and hides it. This thing disables all my tries to drag a window or smth else.... Also some time after using touchscreen such things are disabeling: - Often - click from a mouse (after keyboard using functinality restores) - less often - mouse movement disables (sometimes restores sometimes not) - lesser than other - keyboards works but no sygnals accepting (keyoards has indicator, so thay react, mouse of course not) The test from eTouchU utility passes perfeclty. Any idia for solving this problem? P.S.: Im from Ukraine, so sorry if my possible grammar mistakes. P.P.S.: Besides how to know the physicall position of my tabled mode? For automaticall rotating. Like on each rotation do some script.

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• Tree Surgeon 2.0 - The future on the T4 Express

  - by Malcolm Anderson

  If you've never been a fan of TreeSurgeon (http://treesurgeon.codeplex.com/) then skip this post.However, if have been there have been some interesting developments over the last couple of years.The biggest one is T4Recently Bill Simser wrote a detailed post about the potential future of tree surgeon, called "Tree Surgeon - Alive and Kicking or Dead and Buried" He raised the question:Times have changed. Since that last release in 2008 so much has changed for .NET developers. The question is, today is the project still viable? Do we still need a tool to generate a project tree given that we have things like scaffolding systems, NuGet, and T4 templates. Or should we just give the project its rightful and respectful send off as its had a good life and has outlived its usefulness.For myself, the answer is, keep it.I've spent the last couple of years doing agile engineering coaching and architecture and from my experience, I can tell you, there are a lot of shops out there that would benefit from having Tree Surgeon as a viable product.  Many would benefit simply from having the software engineering information that is embedded in the tree surgeon site be floating around their conversation.Little things like, keep all of your software needed to run the build, with the build in the version control system.Have your developers and the build system using the same build.Have a one-touch buildSeparate your code from your interfacePut unit tests in first, not lastI've seen companies with great developers suffer from the problems that naturally come from builds taking 3 and 4 hours to run.  It takes work to get that build down to 10 minutes, but the benefits are always worth it.  Tree Surgeon gives you a leg up, by starting you off with a project that you can drop into your Continuous Integration system, right out of the box.Well, it used to be right out of the box.  Today, you have to play with the project to make it work for you, but even with the issues (it hasn't been updated since 2008) it still gives you a framework, with logical separations that you can build from.If you have used Tree Surgeon in the past, take a few minutes and drop a comment about what difference it made in your development style, and what you are doing differently today because of it.

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• Nginx & Apache Cannot get try_files to work with permalinks

  - by tcherokee

  I have been working on this for the past two weeks not and for some reason I cannot seem to get nginx's try_files to work with my wordpress permalinks. I am hoping someone will be able to tell me where I am going wrong and also hopefully tell me if I made any major errors with my configurations as well (I am an nginx newbie... but learning :) ). Here are my Configuration files nginx.conf user www-data; worker_processes 4; pid /var/run/nginx.pid; events { worker_connections 768; # multi_accept on; } http { ## # Basic Settings ## sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; # server_tokens off; # server_names_hash_bucket_size 64; # server_name_in_redirect off; include /etc/nginx/mime.types; default_type application/octet-stream; ## # Logging Settings ## # Defines the cache log format, cache log location # and the main access log location. log_format cache '***$time_local ' '$upstream_cache_status ' 'Cache-Control: $upstream_http_cache_control ' 'Expires: $upstream_http_expires ' '$host ' '"$request" ($status) ' '"$http_user_agent" ' ; access_log /var/log/nginx/access.log; error_log /var/log/nginx/error.log; include /etc/nginx/conf.d/*.conf; include /etc/nginx/sites-enabled/*; } mydomain.com.conf server { listen 123.456.78.901:80; # IP goes here. server_name www.mydomain.com mydomain.com; #root /var/www/mydomain.com/prod; index index.php; ## mydomain.com -> www.mydomain.com (301 - Permanent) if ($host !~* ^(www|dev)) { rewrite ^/(.*)$ $scheme://www.$host/$1 permanent; } # Add trailing slash to */wp-admin requests. rewrite /wp-admin$ $scheme://$host$uri/ permanent; # All media (including uploaded) is under wp-content/ so # instead of caching the response from apache, we're just # going to use nginx to serve directly from there. location ~* ^/(wp-content|wp-includes)/(.*)\.(jpg|png|gif|jpeg|css|js|m$ root /var/www/mydomain.com/prod; } # Don't cache these pages. location ~* ^/(wp-admin|wp-login.php) { proxy_pass http://backend; } location / { if ($http_cookie ~* "wordpress_logged_in_[^=]*=([^%]+)%7C") { set $do_not_cache 1; } proxy_cache_key "$scheme://$host$request_uri $do_not_cache"; proxy_cache main; proxy_pass http://backend; proxy_cache_valid 30m; # 200, 301 and 302 will be cached. # Fallback to stale cache on certain errors. # 503 is deliberately missing, if we're down for maintenance # we want the page to display. #try_files $uri $uri/ /index.php?q=$uri$args; #try_files $uri =404; proxy_cache_use_stale error timeout invalid_header http_500 http_502 http_504 http_404; } # Cache purge URL - works in tandem with WP plugin. # location ~ /purge(/.*) { # proxy_cache_purge main "$scheme://$host$1"; # } # No access to .htaccess files. location ~ /\.ht { deny all; } } # End server gzip.conf # Gzip Configuration. gzip on; gzip_disable msie6; gzip_static on; gzip_comp_level 4; gzip_proxied any; gzip_types text/plain text/css application/x-javascript text/xml application/xml application/xml+rss text/javascript; proxy.conf # Set proxy headers for the passthrough proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_max_temp_file_size 0; client_max_body_size 10m; client_body_buffer_size 128k; proxy_connect_timeout 90; proxy_send_timeout 90; proxy_read_timeout 90; proxy_buffer_size 4k; proxy_buffers 4 32k; proxy_busy_buffers_size 64k; proxy_temp_file_write_size 64k; add_header X-Cache-Status $upstream_cache_status; backend.conf upstream backend { # Defines backends. # Extracting here makes it easier to load balance # in the future. Needs to be specific IP as Plesk # doesn't have Apache listening on localhost. ip_hash; server 127.0.0.1:8001; # IP goes here. } cache.conf # Proxy cache and temp configuration. proxy_cache_path /var/www/nginx_cache levels=1:2 keys_zone=main:10m max_size=1g inactive=30m; proxy_temp_path /var/www/nginx_temp; proxy_cache_key "$scheme://$host$request_uri"; proxy_redirect off; # Cache different return codes for different lengths of time # We cached normal pages for 10 minutes proxy_cache_valid 200 302 10m; proxy_cache_valid 404 1m; The two commented out try_files in location \ of the mydomain config files are the ones I tried. This error I found in the error log can be found below. ...rewrite or internal redirection cycle while internally redirecting to "/index.php" Thanks in advance

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• Impossible to enable bluetooth under Ubuntu

  - by PCh

  I just installed Ubuntu 12.04 (dual boot, kept Windows just in case) on my new Acer Aspire One 756-877. As soon as I installed it I also installed the Broadcom driver, since wifi wasn't working, and that solved it right away. But when I tried Bluetooth, I had a problem that I see is quite recurring: -The hardware is on (and working fine under Windows) -The icon shows up on the menu, giving me the options of turning Bluetooth on or off, and then just "Bluetooth preferences". -I can apparently turn it on that way, which only lights up the icon but makes no difference at all (and doesn't give any other options in the Bluetooth menu) -When I open "Bluetooth preferences" (whether Bluetooth is apparently on or off, it makes no difference), it says it's disabled and will not let me slide the button to enable it. I've rebooted, but nothing happens. -The material is Broadcom and the port (if it's relevant at all) is Port_#0001.Hub_#0003 I tried the following commands suggested in other similar questions, with no result at all: sudo dmesg | grep blue and sudo service bluetooth start and sudo /etc/init.d/bluetooth start Any other clues on what I can do? Thanks for your time!

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• Xdebug 2.0.5 with Zend Server CE PHP5.2.12 possible?

  - by notbrain

  I'm using Zend Server CE with PHP 5.2.12 on OSX Snow Leopard and want to use Xdebug. I've turned off Zend Data Cache, Zend Optimizer+, and Zend Debugger in the console. When I run $ cd ~/Downloads/xdebug-2.0.5 $ /usr/local/zend/bin/phpize I get Configuring for: PHP Api Version: 20041225 Zend Module Api No: 20060613 Zend Extension Api No: 220060519 The PHP API Version, 20041225, seems to be off from the documentation (aka wrong). When I continue installation with $ ./configure ---with-php-config=/usr/local/zend/bin/php-config $ make $ sudo make install The installed xdebug.so seems to be the wrong one. Which version of xdebug do I need for this PHP API version? The Zend API numbers are ok. I'm just confused at why the PHP API Version doesn't match. PHP Warning: PHP Startup: Unable to load dynamic library '/usr/local/zend/lib/php_extensions/xdebug.so' - (null) in Unknown on line 0 PHP 5.2.12 (cli) (built: Feb 17 2010 13:39:36)

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• Windows 7 Bootcamp to see data doubler SATA SSD in Optical Bay Connector

  - by bumble_bee_tuna

  Hi I purchased a OWC data doubler http://eshop.macsales.com/item/OWC/DDAMBS0GB/ ... Long story short it lets you add a second HD to your macbook pro in place of the cd/dvd drive (which is useless anyway, impossible to get stuff out when stuck). My current setup is 600gb intel SSD bootdrive 100gb partition for OSX / 500gb for Windows 7 Prof from Bootcamp (use 99 % of time). My desire is to have a second 300gb SSD to run disk intensive VM's off of. So I added a second 300gb intel SSD (again, NO desire to boot off of) on the sata optical port. I can see the drive no problem if I boot in to OSX, however, can't see it in disk management on Win7 ??? Any ideas similar experience ... Funny thing is I can see it in "Device Manager Disk Drivers" but not Disk Management ??? Also no I don't want to use Fusion/Parallels this is a waste of resources for me.

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• Dell M4600 with nVidia Quadro 2000M hangs on boot when external monitor is connected

  - by vladeta

  I have a problem with my fresh installed Ubuntu 12.04 LTS on my Dell M4600: nVidia quadro 2000M i7-2860 16GB ram 128GB SSD Dell/Samsung 750GB HDD IPS RGB laptop display When it is connected via DP++ to the external Dell U2311H monitor, it hangs on boot or when wakening from suspend. If I detach the DP cable it boots normally. I have tried all combinations that I have found, as adding to grub: "no splash", "boot=pci", "acpi=off", etc... I have also changed in nVidia X settings that external monitor is the primary one and also tried to delete monitor.xml file. There is no change it hangs each time after grub. It starts to load daemons then both screens are blank and then completely hangs with beep sound. What I discovered is if I detach the cable and wait for about 2 sec after grub starts booting and then physically connect DP cable while the Ubuntu is still booting everything works normally and I have a picture on my external screen while the laptop screen is off, just as I wanted. Do you maybe know how to solve this issue? Thank You.

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• Disable or sleep secondary HDD in Macbook

  - by cpak

  I've done some quick Googling but didn't find an answer. I've put an SSD in my Macbook, and at the same time moved the original HDD to the optical drive bay. I'm running the OS and most of my daily apps off the SDD so the HDD is really just for storing stuff I need now and then. Now I'd like to disable (as in power off or "force sleep") the HDD when I don't need it. Tried unmounting the disk using diskutil unmountDisk but it kept spinning for like 10 minutes. Maybe that's to be expected, but I'd imagined it would stop instantly on unmount. Also, it would be nice to have it disabled by default, and only mount it (= power on) when I need it. Grateful for any input on this!

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• Bluetooth not detecting any devices in Windows 7

  - by underDog

  My Lenovo ThinkPad E320 Laptop running Windows 7 64bit has recently been refusing to detect any Bluetooth devices. I have tried to connect, using 'Add devices' under 'devices and printers' to two different Bluetooth mice and my HTC Wildfire android (2.2.1) phone and none of them are detected in the 'Add a device' dialog. History - Bluetooth initially seemed OK when I first got this laptop. I was able to connect to and use my android phone as a remote with no issues. I got my first Bluetooth mouse, it paired, but after each restart, or even after sleeping, it would not 're-connect' (even though it was listed under Bluetooth devices and supposedly 'working'), and I would need to remove the device and add it again. A week or two ago it stopped working all together. It is not detected at all. I gave up on the mouse and bought another (Lenovo ThinkPad brand) only to find that it was not detected either. I subsequently tested my Android phone and discovered it would not detect either. One thing of note is under 'Devices and Printers' there is listed a 'HID Keyboard Device' which under properties is listed as a 'Bluetooth HID Device'. This was not previously there before this problem started. Each time I remove it, or uninstall it from Device Manager it will quickly re-install itself, even with all my Bluetooth devices switched off. My (Google and searching this site) research of this issue has not yielded any definitive answers. I have changed the setting under Device Manager - Bluetooth - Properties - Power Management - 'Allow the computer to turn off this device to save power' to off. I have attempted to un-install and re-install the Bluetooth hardware, including the 'remove drivers' option and downloading and running the Lenovo Bluetooth installer package (found @ http://support.lenovo.com/en_US/downloads/detail.page?DocID=DS014997). Bluetooth is turned on. All items under Bluetooth properties (Discovery and Connections) are checked. I have tried changing the batteries. I'm not sure what else I can try, apart from perhaps doing a fresh install of Windows. Any suggestions?

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• Problems set-up Single Sign-On using Kerberos authentication

  - by user1124133

  I need for Ruby on Rail application set authentication via Active Directory using Kerberos authentication. Some technical information: I are using Apache installed mod_auth_kerb In httpd.conf I added LoadModule auth_kerb_module modules/mod_auth_kerb.so In /etc/krb5.conf I added following configuration [logging] default = FILE:/var/log/krb5libs.log kdc = FILE:/var/log/krb5kdc.log admin_server = FILE:/var/log/kadmind.log [libdefaults] default_realm = EU.ORG.COM dns_lookup_realm = false dns_lookup_kdc = false ticket_lifetime = 24h forwardable = yes [realms] EU.ORG.COM = { kdc = eudc05.eu.org.com:88 admin_server = eudc05.eu.org.com:749 default_domain = eu.org.com } [domain_realm] .eu.org.com = EU.ORG.COM eu.org.com = EU.ORG.COM [appdefaults] pam = { debug = true ticket_lifetime = 36000 renew_lifetime = 36000 forwardable = true krb4_convert = false } When I test kinit validuser and enter password then authentication is successful. klist returns: Ticket cache: FILE:/tmp/krb5cc_600 Default principal: [email protected] Valid starting Expires Service principal 02/08/13 13:46:40 02/08/13 23:46:47 krbtgt/[email protected] renew until 02/09/13 13:46:40 Kerberos 4 ticket cache: /tmp/tkt600 klist: You have no tickets cached In application Apache configuration I added IfModule mod_auth_kerb.c> Location /winlogin> AuthType Kerberos AuthName "Kerberos Loginsss" KrbMethodNegotiate off KrbAuthoritative on KrbVerifyKDC off KrbAuthRealms EU.ORG.COM Krb5Keytab /home/crmdata/httpd/apache.keytab KrbSaveCredentials off Require valid-user </Location> </IfModule> I restarted apache Now some tests: When I try to access application from Win7, I got pop-up message box, with text: Warning: This server is requesting that your username and password be sent in an insecure manner (basic authentification without a secure connection) When I enter valid credentials then my application opens successfully, and all works fine. Questions: Is ok that for user pop-ups such windows? If I use NTLM authentication then there no such pop-up. I checked IE Internet Options and there 'Enable Integrated Windows Authentication' is checked. Why IE try to send username and password to application apache? If I correct to understand then Windows self must make authentication via Active Directory using Kerberos protocol. When I try to access application from Win7 and I enter incorrect credentials to pop-up message box Application say Authentication failed (this is OK) In apache error log I see: [error] [client 192.168.56.1] krb5_get_init_creds_password() failed: Client not found in Kerberos database But now I cannot get possibility to enter valid credentials, only when I restart IE I can get again pop-up box. What could be incorrect or missing in my Kerberos setup? I read in some blog post that probably something is needed to be done in Active Directory side. What exactly?

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• Scaling along an arbitrary axis (Dealing with non-uniform scale)

  - by Jon

  I'm trying to build my own little engine to get more familiar with the concepts of 3D programming. I have a transform class that on each frame it creates a Scaling Matrix (S), a Rotation Matrix from a Quaternion (R) and concatenates them together (S*R). Once i have SR, I insert the translation values into the bottom of the three columns. So i end up with a transformation matrix that looks like: [SR SR SR 0] [SR SR SR 0] [SR SR SR 0] [tx ty tz 1] This works perfectly in all cases except when rotating an object that has a non-uniform scale. For example a unit cube with ScaleX = 4, ScaleY = 2, ScaleZ = 1 will give me a rectangular box that is 4 times as wide as the depth and twice as high as the depth. If i then translate this around, the box stays the same and looks normal. The problem happens whenever I try to rotate this scaled box. The shape itself becomes distorted and it appears as though the Scale factors are affecting the object on the World X,Y,Z axis rather than the local X,Y,Z axis of the object. I've done some pretty extensive research through a variety of textbooks (Eberly, Moller/Hoffman, Phar etc) and there isn't a ton there to go off of. Online, most of the answers say to avoid non-uniform scaling which I understand the desire to avoid it, but I'd still like to figure out how to support it. The only thing I can think off is that when constructing a Scale Matrix: [sx 0 0 0] [0 sy 0 0] [0 0 sz 0] [0 0 0 1] This is scaling along the World Axis instead of the object's local Direction, Up and Right vectors or it's local Z, Y, X axis. Does anyone have any tips or ideas on how to handle construction a transformation matrix that allows for non-uniform scaling and rotation? Thanks!

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• Dropped Dell XPS has hard-drive trouble

  - by Alex B.

  Yesterday, my mom dropped her laptop to the floor and got the blue screen of death after trying to boot the system. I was able to start a Fedora live CD and get some of her stuff off the hard drive, but I cannot seem to be able to install Windows on it. The installation starts loading files and then the computer turns off. I am thinking that she might need a new hard drive. Any ideas? Edit: I actually was able to boot the Windows XP installation but it is saying that no hard disk is detected. How can this be possible if I was able to mount the drive on fedora yesterday?

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• Development environment for embedded system

  - by Howard Lee Harkness

  I need to develop software in C/C++ for an embedded system. I have Debian 6 running off of a USB hard drive. I would like to be able to generate a stripped-down kernel with modules, and install them either on a CF card or a USB 'thumb' drive. I succeeded in building a Linux 3.6 kernel and running it in Debian off of the USB hard drive, but I am having trouble figuring out how to install it on the thumb drive. I would like a build cycle that looks like this: 1) Build module or kernel with desired software 2) Install it on thumb drive 3) Boot and test I would like to use the same system for both development and testing, if that is feasible. I am looking for resources and tutorials that would help me understand how to do this.

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• Slap the App on the VM for every private cloud solution! Really ?

  - by Anand Akela

  One of the key attractions of the general session "Managing Enterprise Private Cloud" at Oracle OpenWorld 2012 was an interactive role play depicting how to address some of the key challenges of planning, deploying and managing an enterprise private cloud. It was a face-off between Don DeVM, IT manager at a fictitious enterprise 'Vulcan' and Ed Muntz, the Enterprise Manager hero .   Don DeVM is really excited about the efficiency and cost savings from virtualization. The success he enjoyed from the infrastructure virtualization made him believe that for all cloud service delivery models ( database, testing or applications as-a-service ), he has a single solution - slap the app on the VM and here you go . However, Ed Muntz believes in delivering cloud services that allows the business units and enterprise users to manage the complete lifecycle of the cloud services they are providing, for example, setting up cloud, provisioning it to users through a self-service portal ,  managing and tuning the performance, monitoring and applying patches for database or applications. Watch the video of the face-off , see how Don and Ed address some of the key challenges of planning, deploying and managing an enterprise private cloud and be the judge ! ?

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• GLSL Normals not transforming propertly

  - by instancedName

  I've been stuck on this problem for two days. I've read many articles about transforming normals, but I'm just totaly stuck. I understand choping off W component for "turning off" translation, and doing inverse/traspose transformation for non-uniform scaling problem, but my bug seems to be from a different source. So, I've imported a simple ball into OpenGL. Only transformation that I'm applying is rotation over time. But when my ball rotates, the illuminated part of the ball moves around just as it would if direction light direction was changing. I just can't figure out what is the problem. Can anyone help me with this? Here's the GLSL code: Vertex Shader: #version 440 core uniform mat4 World, View, Projection; layout(location = 0) in vec3 VertexPosition; layout(location = 1) in vec3 VertexColor; layout(location = 2) in vec3 VertexNormal; out vec4 Color; out vec3 Normal; void main() { Color = vec4(VertexColor, 1.0); vec4 n = World * vec4(VertexNormal, 0.0f); Normal = n.xyz; gl_Position = Projection * View * World * vec4(VertexPosition, 1.0); } Fragment Shader: #version 440 core uniform vec3 LightDirection = vec3(0.0, 0.0, -1.0); uniform vec3 LightColor = vec3(1f); in vec4 Color; in vec3 Normal; out vec4 FragColor; void main() { diffuse = max(0.0, dot(normalize(-LightDirection), normalize(Normal))); vec4 scatteredLight = vec4(LightColor * diffuse, 1.0f); FragColor = min(Color * scatteredLight, vec4(1.0)); }

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• AC/battery laptop issues(not a simple charging fix)

  - by Deric Hatchett

  Is it possible to run a laptop off the battery while the AC is plugged in? I can play games no problem while just the battery is plugged in, but obviously that means I have to let it charge after every hour or so. But, when I plug it in to charge, it can't handle any video games anymore. I thought it was the brick in the power cord going out, but I just bought a new one and it still doesn't work. The specs are actually better than the old cord. I think the problem is an over heating problem in the AC outlet, but if it charges the battery while I play, it would work just fine running solely off the battery.

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• Why does working processors harder use more electrical power?

  - by GazTheDestroyer

  Back in the mists of time when I started coding, at least as far as I'm aware, processors all used a fixed amount of power. There was no such thing as a processor being "idle". These days there are all sorts of technologies for reducing power usage when the processor is not very busy, mostly by dynamically reducing the clock rate. My question is why does running at a lower clock rate use less power? My mental picture of a processor is of a reference voltage (say 5V) representing a binary 1, and 0V representing 0. Therefore I tend to think of of a constant 5V being applied across the entire chip, with the various logic gates disconnecting this voltage when "off", meaning a constant amount of power is being used. The rate at which these gates are turned on and off seems to have no relation to the power used. I have no doubt this is a hopelessly naive picture, but I am no electrical engineer. Can someone explain what's really going on with frequency scaling, and how it saves power. Are there any other ways that a processor uses more or less power depending on state? eg Does it use more power if more gates are open? How are mobile / low power processors different from their desktop cousins? Are they just simpler (less transistors?), or is there some other fundamental design difference?

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• Auto switching between wired and wireless connections

  - by Joe

  How about this situation. Our business deals a lot with medical information. And some of our clients have demands based off HIPPA, etc. There is one now where they do not want an employee to have both wired and wireless on at same time. If the wireless is on the wired needs to be turned off automatically and vice versa. However, this can not be up to the end user to manage! I have looked for third party applications and only have found http://www.wirelessautoswitch.com Does anyone know of anything else that is out there? Or possible something that can be done via group policy, etc.?

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