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• elementary OS Luna Wallpaper Pack Available for Download

  - by Asian Angel

  Are you looking for some fresh wallpapers for your desktop? Prefer to avoid looking for those wallpapers individually? Then you may want to have a look at the wallpaper pack for the upcoming Luna release of elementary OS. These wallpapers provide a nice variety in look and feel…just keep the ones you like and enjoy a fresh looking desktop! Note: The wallpaper pack comes in a .tar.gz file format (which can be unzipped in the same way as a .zip file format). Wallpaper pack is ~45 MB in size. Luna Wallpapers Officially Revealed [elementary OS Blog] How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• Internet key not always detected by the operating system

  - by Carlo Gisonni

  I've over the time, tried and installed several versions of Ubuntu. Those versions I like more than others are: Lubuntu and Kubuntu. Everything seems to work properly but the Internet key. I do not know if it may depends on the weather, the moonphase or the tides but the Internet key is not always detected by the system and is sometimes very difficult to establish a connection when I do need to connect to internet. Without applyng any change sometimes works sometimes not. I've so far not found the solution and I think is a quite strange behaviour of the operating system as if the settings are wrong, should never work Awaiting a kind answer from those of you willing to help.

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• Update pizza orders list [on hold]

  - by tirengarfio

  I have to create a website to order pizzas using PHP, MySQL, javascript, etc. I have to create also an android app for the owner of the restaurant, so when someone order a pizza, the android app show the new order on the list of the orders. Hwo to do this? Should I use push notifications? If yes, what happens when the connection su**s and the device is not connected at the moment of the push? Or should I use pull requests from the android device like every 10 seconds?

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• NX/SSH remote access with Remmina

  - by Niklas

  After many days and a lot of frustration, I managed to get freenx to work on my home server. I can connect to it with nomachine's linux client, but I want to use Remmina for this purpose. The problem is that I don't exactly know how to connect to a NX-server with the program. In the connection dialog, I've chosen SSH as the protocol, and I've correctly added the IP and port. Under "SSH Authentication" I've added my user name on the server, and I choose "identity file" and selected the ssh-key I generated (which works with nxclient). (When am I supposed to provide my password for the user on the server?) When I try to connect I get the message: SSH public key authentication failed: Public key file doesn't exist Why do I get this message? How shall I proceed correctly to get the authentication working? Thank you for your time!

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• Can't log to mySQL

  - by Reza

  Even after I reset root password with following command I can not log to mySQL: (other command listed to provide additional info) # sudo dpkg-reconfigure mysql-server-5.1 # mysql -u root -p Enter password: ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES) # telnet 127.0.0.1 3306 Trying 127.0.0.1... telnet: Unable to connect to remote host: Connection refused # ps -Aw |grep mysql 26522 ? 00:00:00 mysqld # /etc/init.d/mysql start Rather than invoking init scripts through /etc/init.d, use the service(8) utility, e.g. service mysql start Since the script you are attempting to invoke has been converted to an Upstart job, you may also use the start(8) utility, e.g. start mysql update: # sudo mysqladmin -u root password 123 mysqladmin: connect to server at 'localhost' failed it seems mysql is not ruining properly

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• Error 255 samba share simple file share Ubuntu 14.04

  - by Rose Offthorns

  I have been using simple file share on Ubuntu 12.04 for several years not a problem now I have up graded to 14.04 all the problems error 255, tried all sights to fix the problem nothing works even went back to 12.04 still the same problem error 255 'net usershare' returned error 255: net usershare add: cannot convert name "Everyone" to a SID. The connection was refused. Maybe smbd is not running. There appears to be a bug with the new upgrade or has there been a new upgrade. Thanks for any help would be appreciated.

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• How to set wifi driver settings to prefer 5 GHz channel above 2.4 GHz

  - by Wouter

  Currently I'm in a new building of my university. In this building my wifi often breaks down and then restores connection again. This is really irritating since it happens a lot. Now as a coincidence there were some tech guys running around here and where asking everyone if the wifi was doing fine. I told them that my wifi tears down all the time and then reconnects. They figured out that my wifi is switching all the time between the 2.4 GHz channel and 5 GHz channel. They asked me if I could acces the driver settings of my wireless card. Unfortunately I don't know how to do this is in either Linux or Windows. And unfortunately again they only knew the windows solution xD. So I hope somebody can tell me how I tell my wifi that it should stay on the 5 GHz network and not disconnect and switch to the 2.4 GHz channel?

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• The Best Websites for Downloading Cool Wallpapers

  - by Lori Kaufman

  Getting bored with your desktop wallpaper or the wallpaper on your mobile device? Because we use our PCs and mobile devices so much, it’s nice to have a choice of cool backgrounds to look at. We’ve collected links to some sites where you can download wallpapers for your PC or your phone. Not all the wallpapers are free, but there are plenty of free ones to provide a variety of cool backgrounds. HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems

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• Securely sending data from shared hosted PHP script to local MSSQL

  - by user329488

  I'm trying to add data from a webhook (from a web cart) to a local Microsoft SQL Server. It seems like the best route for me is to use a PHP script to listen for new data (POST as json), parse it, then query to add to MSSQL. I'm not familiar with security concerning the connection between the PHP script (which would sit on a shared-host website) and the local MSSQL database. I would just keep the PHP script running on the same localhost (have Apache running on Windows), but the URI for the webhook needs to be publicly accessible. Alternately, I assume that I could just schedule a script from the localhost to check periodically for updates through the web carts API, though the webhooks seem to be more fool-proof for an amateur programmer like myself. What steps can I take to ensure security when using a PHP on a remote, shared-host to connect to MSSQL on my local machine?

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• Wifi won't enter working net after hard reboot

  - by Terry Smith

  I rebooted the hard way after my system jammed again because FF eats all the ram. (that's a different problem) I've always gotten away with it, but not this time. The system came up ok BUT it absolutely refuses to log onto the local house wifi net. I know the net is ok as the Windows box I'm writing this on is on it right now. I deleted the connection and rentered the password but it will not go on. /var/lib/NetworkManager/NetworkManager.state says everything is turned on. I know this is my fault but I'd really like to get back on the net. The machine is a Toshiba Satellite. Any suggestions?

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• Fork bomb protection not working : Amount of processes not limited

  - by d_inevitable

  I just came to realize that my system is not limiting the amount of processes per user properly thus not preventing a user from dring a fork-bomb and crashing the entire system: user@thebe:~$ cat /etc/security/limits.conf | grep user user hard nproc 512 user@thebe:~$ ulimit -u 1024 user@thebe:~$ :(){ :|:& };: [1] 2559 user@thebe:~$ ht-bash: fork: Cannot allocate memory -bash: fork: Cannot allocate memory -bash: fork: Cannot allocate memory -bash: fork: Cannot allocate memory -bash: fork: Cannot allocate memory -bash: fork: Cannot allocate memory -bash: fork: Cannot allocate memory -bash: fork: Cannot allocate memory ... Connection to thebe closed by remote host. Is this a bug or why is it ignoring the limit in limits.conf and why is not applying the limit that ulimit -n claims it to be? PS: I really don't think the memory limit is hit before the process limit. This machine has 8GB ram and it was using only 4% of it at the time when I dropped the fork bomb.

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• How to Install KVM and Create Virtual Machines on Ubuntu

  - by Chris Hoffman

  If you’re using Linux, you don’t need VirtualBox or VMware to create virtual machines. You can use KVM – the kernel-based virtual machine – to run both Windows and Linux in virtual machines. You can use KVM directly or with other command-line tools, but the graphical Virtual Machine Manager (Virt-Manager) application will feel most familiar to people that have used other virtual machine programs. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• Prototype Fanless Heatsink Is Silent and Dust-Immune

  - by Jason Fitzpatrick

  What does this chip cooler do that your’s doesn’t? Run 30 times more efficiently, nearly silently, and repel any dust that settles on it, for starters. Check out the video to see it in action. Although the video is a bit dry the heatsink in action is pretty impressive–nearly silent? repels dust? radically more efficient? Our only complaint is we can’t slap one on a test machine right this minute. [via Extreme Tech] How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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• Bluetooth refuses to connect since update to Ubuntu Gnome 13.10

  - by Niklas Berg

  I can no longer connect to my bluetooth speakers since since upgrading to Ubuntu Gnome 13.10 and then Gnome shell to 3.10, which never were a problem with Ubuntu Gnome 13.04. My bluetooth-dongle seems to working fine and I can even detect and add the speakers (Creative D100) but when I try to slide the button from off to on in the bluetooth settings it just slides back to off. The "bluetooth-B" in the upper right corner is also gone. I actually managed to connect after I added "Enable=Socket" under "[general]" /etc/bluetooth/audio.conf and the indicator on the speakers confirms the connection, but I cannot find the speakers in the audio settings even then. I've tried to solve this for several days, reading tons of other possibly related questions here on ask ubuntu and elsewhere but am unable to find a solution. Any ideas?

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• links for 2010-04-07

  - by Bob Rhubart

  James McGovern: Enterprise Architecture and Social CRM "With a few exceptions, the vast majority of enterprise architects I know spend an awful lot of time focused on internal issues whether it is rationalization, the cloud, storage governance, data center consolidation, creation of reference architectures, portfolio management and other considerations that aren’t even visible to customers. One should ask whether IT can be truly successful if we are busy listening to the business but otherwise are blissfully ignorant towards the customers they serve." -- James McGovern (tags: enterprisearchitecture crm socialcomputing) WRF Benchmark: X6275 Beats Power6 - BestPerf "Oracle's Sun Blade X6275 cluster is 28% faster than the IBM POWER6 cluster on Weather Research and Forecasting (WRF) continental United Status (CONUS) benchmark datasets. The Sun Blade X6275 cluster used a Quad Data Rate (QDR) InfiniBand connection along with Intel compilers and MPI." (tags: oracle sun x6275 benchmarks)

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• svn checkout through proxy doesn't work

  - by Hoghweed

  I'm on an ubuntu 11.04 x64 I'm trying to svn checkout trough a proxy, I edited the servers file to correctly set the http proxy informations to correctly establish a connection, but I'm still having errors and the checkout it's not possible. this is the error: svn checkout http://75.101.130.236/svn/mspdd/ svn: OPTIONS of 'http://75.101.130.236/svn/mspdd': Could not authenticate to proxy server: ignored Kerberos challenge, ignored NTLM challenge, GSSAPI authentication error: Unspecified GSS failure. Minor code may provide more information: Credentials cache file '/tmp/krb5cc_1000' not found (http://75.101.130.236) Trying to access through browser works well but not from terminal.. any idea? thanks a lot

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• Ubuntu / FileZilla FTP Set Up

  - by Dean Mark Anthony

  I have successfully installed VSFTPD and I have configured it to allow FTP connection from my Windows laptop running FileZilla. FileZilla is pointing at the directory srv/ftp on my server; the files that are stored in srv/ftp are showing in the Remote Site section of FileZilla. This indicates that it is connecting to my FTP server. What I need to do is point FileZilla toward the directory var/www so that all files that I transfer are visible on my self-hosted website. I cannot find out how to do this. Do I need to perform some updates to the vsftpd.conf file, and if so what do I change? Do I need to perform updates to my FileZilla console? I am comfortable in terms of changing .conf files, port forwarding and setting permissions etc. I just need to know what precisely needs to be changed. Much love...

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• What You Said: How You Keep Your Email SPAM Free and Tidy

  - by Jason Fitzpatrick

  Earlier this week we asked you to share your favorite tips and tricks for keeping your inbox tidy. Now we’re back to share your–rather aggressive–SPAM dodging tricks. HTG readers are serious about beating back SPAM. While some readers such as TechGeek01 took a fairly laid back approach to junk mail: I usually just read emails, and delete them when my inbox gets kinda full. As for spam, I mark it as such, and the automated spam filter usually catches it the next time. It’s a fairly simple method, I know, but it’s efficient, and takes almost no effort, other than a monthly cleaning. For other readers it was outright war. ArchersCall uses a system of layers and whitelists: I have a triple system and rarely see spam. How to Banish Duplicate Photos with VisiPic How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It?

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• Cheap, Awesome, Programmer-friendly City in Europe for 1 year Study Hiatus?

  - by Gonjasufi

  Next year I'll be 21. I'll have 3 years of professional experience under my belt (with a one year break as a soldier). I'm planning to take 2 to 3 years off. Instead of going to a university I'm planning to work on personal projects and learn on my own. I'm looking for suggestions of great, cheap, programmer-friendly (e.g. lots of cafes, ordered food, parks, blazing fast internet connection, wifi, lots of people that speak English) cities around the world, (and specifically in Europe as I also have european citizenship). If you can supply with an estimate cost of living for that city, or a site for comparisons that will also be great. edit: I'm living in Tel Aviv, ~20 highest cost of living city in the world, so statistically speaking almost all the cities are cheaper.

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• libssh2 and simultaneous connections

  - by Florian Margaine

  I'm writing a node.js C++ module using the C library libssh2. The module is supposed to be a bridge to connect to SSH over HTTPS. Right now, I'm still in the design/learning phase of v8 API and C++, and I have a design question: libssh2 is a C library, all its methods are global. From what I see in the examples, libssh2 can only handle one connection at a time. If I want to allow simultaneous connections to different SSH servers, do I have to fork a process to completely separate the libssh2 "instances", or is forking a thread enough? I don't know enough of the separation limit used there. Any idea on how to handle this is appreciated.

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• Tears of Steel [Short Movie]

  - by Asian Angel

  In the future a young couple reach a parting of the ways because the young man can not handle the fact that she has a robotic arm. The bitterness of the break-up and bad treatment from her fellow humans lead to a dark future 40 years later where robots are relentlessly hunting and killing humans. Can the man who started her down this dark path redeem himself and save her or will it all end in ruin? TEARS OF STEEL – DOWNLOAD & WATCH [Original Blog Post & Download Links] Tears of Steel – Blender Foundation’s fourth short Open Movie [via I Love Ubuntu] HTG Explains: What is the Windows Page File and Should You Disable It? How To Get a Better Wireless Signal and Reduce Wireless Network Interference How To Troubleshoot Internet Connection Problems

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• mp3 codecs cannot be installed no software is actually installing

  - by joseph michore

  My Rythm box player cannot play mp3 and iget this error "GStreamer extra plugins cannot be installed on your computer type (i386) Either the application requires special hardware features or the vendor decided to not support your computer type" if i go to software center i get this error The repository may no longer be available or could not be contacted because of network problems. If available an older version of the failed index will be used. Otherwise the repository will be ignored. Check your network connection and ensure the repository address in the preferences is correct. in shot i have tried to dowload deb softs i still get the error above .so i have downloaded tar.gz and i have installed using terminal but i get another error of gcc c++ insanity check failure! i ask my self what i am supposed to do nothing is working nothing at all yet i have to run my bussiness help urgently before i collapse and choose to die!

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• Sterci today announced it has earned Oracle Exadata and Oracle Exalogic Optimized status

  - by Javier Puerta

  Sterci has announced it has earned Oracle Exadata and Oracle Exalogic Optimized status. (Read full announcement here) "GTExchange from Sterci is a high-performance multi-network and multi-standard financial messaging solution that provides a comprehensive connection hub to SWIFT and other networks, as well as handling internal message transfer. It supports high volume and complex message flows from multiple counterparties, delivering control, transparency and proven efficiencies. By achieving Oracle Exadata Optimized and Oracle Exalogic Optimized status, Sterci has shown that its GTExchange solution has achieved a 3.8 x greater throughput (nearly 4 million messages an hour), than any previous tests on comparable x86 systems." 

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• WiFi not working on Dell Inspiron 1564

  - by Zack Warren

  hope you can offer some help! I'm new to Ubuntu (and Linux for that matter), but I managed to install Ubuntu 12.04 yesterday on an old Dell Inspiron 1564 Laptop. Everything works fine, with the exception of the wireless connection. Using my wired ethernet, I was able to look up several solutions which seemed as if they would work, but I've had no luck. Currently, wireless does show as enabled, but all wireless networks are disconnected, in fact, none of the networks are even listed (and I can see them on other devices in the home). Let me know what you need to help me! Thanks in advance!

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• Database .NET

  - by Guilherme Cardoso

  Database .NET is an awesome tool that allow us manage several database in simultaneous (SQL Server, MySQL, Oracle, etc). What lead me to install this tool was an problem that must be shared by must developers. Tools like SQL Server Management Studio consume to many resources, and if you don't have a decent computer you'll get problems in performance, and that's my case! With Database .NET we can access an SQL Server for example, and make several actions to database (crud operations, manage procedures, etc).Of course that this tool can replace the use of SQL Server Management Studio for example!  But it's really usefull if  you just need to perform small operations because it consumes many fewer resources. This tool don't need to be installed (it can be used as an portable application). One tip: if you are using SQL Server Express for example, don't forget to check the server name in Database .NET connection. In my case i've to change from GUILHERM-196634 to GUILHERM-196634\SQLExpress. Project: http://fishcodelib.com/Database.htm Download: http://fishcodelib.com/files/DatabaseNet3.zip

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