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Updated: 46 min 26 sec ago

Reddit: Linux Process Management Simplified

Wednesday 1st of March 2017 04:52:05 PM

In server administration it is very important to understand how the running processes work in detail, from high load to slow response time processes, there comes a time when your server may start to become so slow or fail to respond sometimes, and as a consequence, it will require immediate attention, and here it comes the process management or Linux process management specifically in place.

When it is the time to kill a process or renice it and how to monitor the currently running processes and how these processes affect the system load. Let’s see how Linux process management will help us tuning the system

Our main points are:

Process types

Tuning performance with memory management

Managing memory with vmstat

Checking the system load with the top command

Monitoring disk I/O with iotop

Checking processes with the ps command

Checking performance with iostat and lsof

Calculating the system load

Discovering process IDs using pgrep and systemctl

Discussing systemd

Nice and renice processes

Sending the kill signal

I hope you like it.

Thank you

submitted by /u/likegeeks
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Reddit: Moreutils For Your Linux Shell Tool Set

Wednesday 1st of March 2017 04:35:57 PM

Reddit: Ext4 and reserved blocks

Wednesday 1st of March 2017 03:58:05 PM

Currently I have a 6TB harddrive with a single EXT4 partition used to store all my media files, while my root is on a 32GB flashdrive. I understand that reserved blocks are needed for defragmentation but even setting at 1% of the total disk space, it is 60GB reserved blocks. I wonder how much space is actually needed for EXT4 defragmentation and whether I can set reserved blocks to 1Gb or 500Mb for example?

submitted by /u/akanosora
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LXer: Linux Security Fundamentals Part 6: Introduction to nmap

Wednesday 1st of March 2017 03:44:28 PM
In last week’s tutorial, we tried out tcpdump and wireshark, two of the most useful tools for troubleshooting what is happening as network traffic is transmitted and received on the system. nmap is another essential tool for troubleshooting and discovering information about the network...

Reddit: Rspamd 1.5 has been released

Wednesday 1st of March 2017 03:34:58 PM

Reddit: Wireless Driver Issues with kali

Wednesday 1st of March 2017 03:12:18 PM

Hello Friends , Question : I cant seem to get my kali linux Virtual Machine to use my wirelless driver . When i put it on monitor mode , it gives nothing ... I have the host connected via cable , and wanted to use my wirelless card for my VM . Does anyone know why ? This is my Xth attempt of trying to learn Kali on a VM but it always gives me networking issues . Details : Thanks Guys

submitted by /u/azniks
[link] [comments] Faster Data Center Transfers with InfiniBand Network Block Device

Wednesday 1st of March 2017 03:00:30 PM

The storage team of ProfitBricks has been looking for a way to speed transfers between VMs on compute nodes and physical devices on storage servers, connected via InfiniBand, in their data centers. As a solution, they developed the IBNBD driver, which presents itself as a block device on the client side and transmits the block requests to the server side, according to Danil Kipnis, Software Developer at ProfitBricks GmbH.

“Any application requiring block IO transfer over InfiniBand network can benefit from the IBNBD driver,” says Kipnis. 4 Security Steps to Take Before You Install Linux

Wednesday 1st of March 2017 02:54:29 PM

Learn how to work from anywhere and keep your data, identity, and sanityDOWNLOAD NOW

Systems administrators who use a Linux workstation to access and manage IT infrastructure -- whether from home or at work --  are at risk of becoming attack vectors against the rest of the infrastructure.

Phoronix: NVIDIA 375.27.13 Linux Driver Released To Fix SteamVR

Wednesday 1st of March 2017 02:40:01 PM
NVIDIA released their new Vulkan beta driver on Monday to support the new Vulkan 1.0.42 extensions but that ended up breaking the SteamVR Linux support, which relies upon Vulkan. NVIDIA has now corrected this support...

LXer: Raspberry Pi Zero W: The smart person's guide

Wednesday 1st of March 2017 02:35:50 PM
This comprehensive guide covers everything you need to know about the tiny $10 computer, the latest from the Raspberry Pi Foundation. As the Software Supply Chain Shifts, Enterprise Open Source Programs Ramp Up

Wednesday 1st of March 2017 02:30:00 PM

Today’s software supply chain is fundamentally different than it was only a few years ago, and open source programs at large enterprises are helping to drive that trend. According to Sonatype’s 2016 State of the Software Supply Chain enterprises are both turning to existing open source projects to decrease the amount of code they have to write, and increasingly creating their own open source tools.

LXer: How to Securely Transfer Files Between Servers with scp

Wednesday 1st of March 2017 01:27:13 PM
If you run a live or home server, moving files between local machines or two remote machines is a basic requirement. There are many ways to achieve that. In this article, we talk about scp (secure copy command) that encrypts the transferred file and password so no one can snoop. With scp you don’t have to start an FTP session or log into the system.

TuxMachines: Red Hat News

Wednesday 1st of March 2017 12:19:12 PM

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LXer: Why a Chrome OS and Android merger isn't what we really need

Wednesday 1st of March 2017 12:18:36 PM
If you're a Chromebook user, you might have momentarily longed for an Android app or two for ChromeOS. Here's why this might not be such a good idea.

Phoronix: Initial Open-Source Accelerated Support Comes To Nouveau For GTX 1050/1060/1070/1080

Wednesday 1st of March 2017 12:16:57 PM
The patches are now out there for having initial accelerated support in the Nouveau DRM driver for the GeForce GTX 1050/1060/1070/1080 series "Pascal" graphics cards. The signed firmware is being released and will allow these consumer graphics cards to now have hardware-accelerated support via the open-source driver...

TuxMachines: F2FS Feature Work For The Linux 4.11 Kernel

Wednesday 1st of March 2017 12:08:38 PM

The Flash-Friendly File-System (F2FS) will see new features introduced with the Linux 4.11 kernel.

F2FS for Linux 4.11 is making use of a separate thread for discards to avoid latency problems during checkpoints and fstrim, some prep work for open-channel SSD support, on-disk bitmaps are being introduced, and various other changes.

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TuxMachines: Q4OS 1.8.3, Orion

Wednesday 1st of March 2017 12:05:56 PM

New update of stable Q4OS 'Orion' desktop is available. Bunch of important packages updates and security patches has been delivered, as well as improvements of the native Q4OS update manager application. All the changes are available for existing Q4OS users via the automatic update process.

Work on the next major version, Q4OS 2.3 'Scorpion' continues as the Debian Project also nears end of development cycle for the Debian GNU/Linux 9 'Strech' operating system, upon which Q4OS 2.3 will be based. The release date is preliminarily scheduled at about the turn of April and May 2017. Q4OS 'Scorpion' will be supported at least five years from the official release date.

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More in Tux Machines

Linux Devices, Tizen, and Android

Leftovers: OSS

  • SAP buys into blockchain, joins Hyperledger Project
  • foss-north speaker line-up
    I am extremely pleased to have confirmed the entire speaker line-up for foss north 2017. This will be a really good year!
  • Chromium/Chrome Browser Adds A glTF Parser
    Google's Chrome / Chromium web-browser has added a native glTF 1.0 parser. The GL Transmission Format, of course, being Khronos' "3D asset delivery format" for dealing with compressed scenes and assets by WebGL, OpenGL ES, and other APIs. There are glTF utility libraries in JavaScript and other web-focused languages, but Google adding a native glTF 1.0 parser appears to be related to their VR push with supporting VR content on the web. Their glTF parser was added to Chromium Git on Friday.
  • Sex and Gor and open source
    A few weeks ago, Dries Buytaert, founder of the popular open-source CMS Drupal, asked Larry Garfield, a prominent Drupal contributor and long-time member of the Drupal community, “to leave the Drupal project.” Why did he do this? He refuses to say. A huge furor has erupted in response — not least because the reason clearly has much to do with Garfield’s unconventional sex life. [...] I’ll unpack the first: open-source communities/projects are crucially important to many people’s careers and professional lives — cf “the cornerstone of my career” — so who they allow and deny membership to, and how their codes of conduct are constructed and followed, is highly consequential.
  • Hazelcast Releases 3.8 – The Fastest Open Source In-Memory Data Grid
  • SecureDrop and Alexandre Oliva are 2016 Free Software Awards winners
  • MRRF 17: Lulzbot and IC3D Release Line Of Open Source Filament
    Today at the Midwest RepRap Festival, Lulzbot and IC3D announced the creation of an Open Source filament. While the RepRap project is the best example we have for what can be done with Open Source hardware, the stuff that makes 3D printers work – filament, motors, and to some extent the electronics – are tied up in trade secrets and proprietary processes. As you would expect from most industrial processes, there is an art and a science to making filament and now these secrets will be revealed.
  • RApiDatetime 0.0.2

Security Leftovers

  • NSA: We Disclose 90% of the Flaws We Find
    In the wake of the release of thousands of documents describing CIA hacking tools and techniques earlier this month, there has been a renewed discussion in the security and government communities about whether government agencies should disclose any vulnerabilities they discover. While raw numbers on vulnerability discovery are hard to come by, the NSA, which does much of the country’s offensive security operations, discloses more than nine of every 10 flaws it finds, the agency’s deputy director said.
  • EFF Launches Community Security Training Series
    EFF is pleased to announce a series of community security trainings in partnership with the San Francisco Public Library. High-profile data breaches and hard-fought battles against unlawful mass surveillance programs underscore that the public needs practical information about online security. We know more about potential threats each day, but we also know that encryption works and can help thwart digital spying. Lack of knowledge about best practices puts individuals at risk, so EFF will bring lessons from its comprehensive Surveillance Self-Defense guide to the SFPL. [...] With the Surveillance Self-Defense project and these local events, EFF strives to help make information about online security accessible to beginners as well as seasoned techno-activists and journalists. We hope you will consider our tips on how to protect your digital privacy, but we also hope you will encourage those around you to learn more and make better choices with technology. After all, privacy is a team sport and everyone wins.
  • NextCloud, a security analysis
    First, I would like to scare everyone a little bit in order to have people appreciate the extent of this statement. As the figure that opens the post indicates, there are thousands of vulnerable Owncloud/NextCloud instances out there. It will surprise many just how easy is to detect those by trying out common URL paths during an IP sweep.
  • FedEx will deliver you $5.00 just to install Flash
    Bribes on offer as courier's custom printing service needs Adobe's security sinkhole

GNOME Extensions Website Has A New Look

Every GNOME Shell user will visit the official GNOME Shell Extensions website at least once. And if those users do so this weekend they’ll notice a small difference as the GNOME Shell Extensions website is sporting a minor redesign. This online repo plays host to a stack of terrific add-ons that add additional features and tweak existing ones. Read more