NI unveiled a rugged 4-slot “CompactDAQ” system for data acquisition and control (DAQ), with real-time Linux, an Atom E3825, and optional sensor modules.
Usually, when you have a choice of Windows or Linux, the Windows version costs more. In the case of the National Instruments (NI) CompactDAQ cDAQ-9134 Controller, however, it’s the Linux version that costs $500 more, at $4,999. That’s because it’s a special real-time Linux variant called NI Linux Real-Time, also available on NI’s CompactRIO cRIO-9068 controller and sbRIO-9651 computer-on-module, both of which are based on the Xilinx Zynq-7020 system-on-chip. The cDAQ-9134 instead runs on a dual-core, 1.33GHz Intel Atom E3825 SoC.
I'm fairly new to Linux(started using it six months ago). In that time I still have no idea what the Linux kernel is or does. I was reading the Wikipedia article about that discusses the Linux kernel and I still am unsure what exactly it is. So what exactly is the Linux kernel and what is its purpose?submitted by Killerwhaler
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If, like me, you are a statistics freak you must install this small application on all your computers: WhatPulse
The software tracks a user’s pressed keys, mouse clicks and used bandwidth and the uptime of the system. Periodically, or by hand, the user can upload to the server the number of keystrokes made; this is called “pulsing”.
Users can see where they are in a leaderboard of people who have joined the program and compare themselves against people from their own countries. Users can also join teams, which enables them to compare themselves against people with similar interests (Go Linux Users !!).
There is a basic, and free, version where you can easily see and check all the basic statistics and a premium account where you can see some more stats.
The software is available for Linux, Windows and Mac.
As first step you have to register your account on the WhatPulse Website or as alternative when you first start the WhatPulse client there is a practical wizard through which each user has the option to create an account to upload their own statistics (you can also log in with Facebook).
You will be prompted to login, once you login, you have to search for your computers name, this is because you can login to several computers with this and they’ll all collectively go to the same statistic count. Once you’ve logged in, a small W will appear in your system tray, that’s it, your set up!Installation of WhatPulse on Linux
The official website offer on the download page a generic version distributed via a .tar.gz archive (available for 32 and 64 bit) and a debian package.
Personally I’ve installed the debian package on my Mint Qiana and the Aur Package on My Arch Linux, no problems at all.
If you want to go with the generic installation please keep in mind that WhatPulse requires several libraries to function. Mainly Qt, because WhatPulse is built on Qt. Here’s a list of requirements:
- openssl-devel (libssl-dev)
The client needs permissions to be allowed to read your keyboard/mouse input. Run the included interactive .sh script to set up these permissions.
To enable the network measurements, you also need the package libpcap to allow WhatPulse to hook into the network traffic. If WhatPulse does not find libpcap, it will run but it will not display any network statistics.
By default WhatPulse will start automatically at the login of your graphical session and clicking on the W on your systray you’ll go to the Overview tab that gives a birds-eye view of all the different information gathered about your machine, for instance, the Linux version installed on your PC, processor model, RAM, GPU, total click counts, keystrokes and bandwidth usage. Clicking ‘Pulse’ under these information will upload the gathered data to the main server.
It’s also possible to select when automatically ‘Pulse’ the data to the server, such as every 50.000 clicks or 1 GB downloaded.
For further details, you can switch to each category’s pertaining tab. For example, the Input tab shows you the amount of key strokes and clicks your PC has registered during a certain time period. The time period can be sorted on a daily, weekly, monthly, yearly and all-time basis. The ‘all’ setting will show stats since the program was installed.
Below the keystrokes, you’ll find the keyboard heat map, which basically uses light and warm colors to shows what keys were used more than others during the selected time period, as shown in the screenshot above. Below that, the app displays the total amount of clicks registered in the selected period.
Under the Network tab, it’s possible to view the daily Internet usage. The application can monitor bandwidth usage of all the network devices, and even shows you bandwidth usage by country. Once again, you can navigate between available data using the arrow buttons at the top-right.
On the website you’ll see the sum of all your computer statistics with the same information available on the client.
Disclaimer: The link above to the WhatPulse website contains my referral link, using it when you register will give me a premium account for some time.
I am looking into potentially starting a Linux User Group in Romeo, Michigan. While it's not a huge town, there aren't any other groups within 40 or 50 miles of there.
Do any of you fellow Linux users live near Romeo and would be interested in a User Group there? Comment below!submitted by mrderpicusthesecond
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So I was given a 20" iMac G5 ALS. It had no hard drive or memory originally, but I managed to track down 1GB of DDR400 and a 500GB SATA. Its got a Radeon 9600 graphics chip.
So, here's my problem: I cannot, for the life of me, get a damn OS on this computer. The many OS X discs I've tried will not install, in fact they don't even see the hard drive in the "Choose A Volume" window, however disk utility sees the drive and will even format it to HFS+. All first aid options fail with no error code.
Finally I gave up after a few days and tried to put a Linux Distro on it. All *buntu flavors hang at the same spot, a solid black screen that has so cursor immediately following the yaboot prompt. I've tried nosplash, PowerPC 64 (w and w/o nosplash) and all the radeon video options, (modeset=0, forcing a resolution, agpmode=-1, etc) on both Alternate and Live discs. No Dice.
Finally I tried to install MintPPC 11, I get the farthest on this one. It lets me choose keyboard layout, language, it downloads additional files, let's me choose a server, but hangs at 0% on the "Detecting Disks and Other Hardware."
My next plan after I get off work was to try plain Debian, since it actively supports PPC, I hesitated on this one at first because it not as user friendly as I'd like it to be, but whatever, I know how to read.
I know a lot of your are gonna say RTFM, but I have. Countless hours of reading documentation and forum searches. Has ANYBODY had success getting Linux on an iMac G5, and if so what the heck am I doing wrong.
Note: NO hotkeys work on this Mac. I've been booting from CD/DL-DVD using the OpenFirmware command "boot CD:,\:tbxi"
Help me, r/Linux, you're my only hope.submitted by mdof1337
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The developers have identified some security issues with the GNU C Library and an update has been pushed into the repositories.
“Stephane Chazelas discovered that the GNU C Library incorrectly handled locale environment variables. An attacker could use this issue to possibly bypass certain restrictions such as the ForceCommand restrictions in,” reads the security notice.
The Radeon DRM driver changes have been published for queuing into drm-next before hitting the mainline Linux 3.17 kernel tree.
Among the exciting work to be found for the AMD Radeon graphics kernel driver in Linux 3.17 include:
- Good Hawaii support for the AMD Radeon R9 290 series. The R9 290/290X should now work with the open-source driver at long last, but besides Linux 3.17 you'll need newer microcode files and also the latest Gallium3D code. Once 3.17-rc1 has been tagged, I'll move ahead with my open-source Radeon Hawaii benchmarks on the R9 290.
- Support for a new firmware format to make updates easier to manage.
Let me start by saying this is absolutely not a Docker bashing article. I actually love Docker, and I think it is an outstanding piece of software that will have great success. But I have to confess, I’m not sure that it deserves the virtualization moniker that so many in the industry are hanging on it.
I'm not sure if this is the best place to ask and if not then if there's a better place please let me know.
We setup a Linux box with SSH and SFTP and I went through the process to setup SFTP only users. My sshd_config file has the following:Subsystem sftp internal-sftp AllowGroups ssh-users sftponly root sftpadmins Match Group sftponly ChrootDirectory /home/%u ForceCommand internal-sftp AllowTcpForwarding no
This part so far is good. I then use the following script to setup users:useradd -g sftponly -s /sbin/nologin -M $user; mkdir /home/$user; echo $password | passwd --stdin $user; chown root:root /home/$user; chmod 755 /home/$user; mkdir /home/$user/upload; chown $user:sftponly /home/$user/upload; chmod ugo+rwX /home/$user/upload;
So this is great and it allows users to login with SFTP and be stuck in their own directory. The problem is that I would like to grant rxw to our sftpadmins group on the user's home folder. If I do this:chown root:sftpadmins /home/$user
when the user attempts to SFTP in, they get an access denied error. My reasoning for this is that I want the user to only be allowed to upload to their /home/$user/upload folder but I want any of the SFTP admins to be able to upload files directly to /home/$user.
Any thoughts?submitted by mitzman
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softpedia: The Steam for Linux rate of adoption has dropped somewhat in comparison with the previous month, but it still holds around 1.1%.