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About Tux Machines

Friday, 24 Feb 17 - Tux Machines is a community-driven public service/news site which has been around for over a decade and primarily focuses on GNU/LinuxSubscribe now Syndicate content

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Quick Roundup

Type Title Author Replies Last Postsort icon
Story some leftovers: srlinuxx 14/05/2013 - 6:03pm
Story How Mighty Mint became one of the most popular Linux distros srlinuxx 14/05/2013 - 2:58am
Story Linux Kernel 3.9 – The Kernel Column srlinuxx 14/05/2013 - 2:57am
Story Microsoft is lagging Linux srlinuxx 14/05/2013 - 2:55am
Story A little look at Debian 7.0 srlinuxx 14/05/2013 - 2:50am
Story Ubuntu.com update srlinuxx 14/05/2013 - 2:47am
Story DistroWatch Weekly, Issue 507 srlinuxx 13/05/2013 - 6:47pm
Story Debian Project News - May 13th srlinuxx 13/05/2013 - 6:45pm
Story Feature set of Linux 3.10 defined srlinuxx 13/05/2013 - 6:43pm
Story Firefox 21.0: Find out what is new srlinuxx 13/05/2013 - 6:41pm

RISC OS-on-Linux project prepares live CD

Filed under
OS

drobe.co.uk: An ambitious initiative to eventually run RISC OS desktop software on Linux-powered PCs took a step closer to reality this month. Issues with the user interface code have been addressed, and a bootable CD is being prepared to demonstrate the system's abilities.

Adventures in Linux go forth

Filed under
Linux

nashuatelegraph.com: So, we’ve installed Linux on an older Celeron laptop in an effort to breathe new life into the old boy. Here are our recommendations for Window users who, like us, are Linux newbies:

$150 Medison Laptop Bites The Dust

Filed under
Linux
Hardware

phoronix: It was less than a week ago when we last updated you on the status of the $150 Medison Celebrity laptop. At that time the insanely cheap laptop was still no where to be found. Over the weekend the Medison Celebrity website was shutdown.

Backup with Rsync under Linux

Filed under
HowTos

the inquirer: UNLESS YOU'VE GOT a couple of mirrored hard drives to ensure that a disk failure won't send all of your precious data to that great bit-bucket in the sky, you need to backup your data.

Linux powered TreCorder speeds up data collection at crime scenes

Filed under
Sci/Tech

daniweb: A new forensic computer from a UK based company promises to make the task of gathering evidence at the scene of a crime much easier. The dual booting Windows XP and Suse Linux TreCorder portable forensic lab is built into a rugged portable chassis and can simultaneously copy up to three hard drives at a speed of 2GB per minute per drive.

Ever seen Compiz/Beryl/XGL/AIGLX combined with Xinerama?

Filed under
Software

kdedevelopers.org: I've never seen Xinerama combined with Compiz/Beryl/XGL (or AIGLX) in action. This morning, when checking out a printing-related blog, I stumbled upon a little YouTube video showing exactly that. It does look amazing indeed.

Chrooted SSH/SFTP Tutorial (Debian Etch)

Filed under
HowTos

This tutorial describes two ways how to give users chrooted SSH access. With this setup, you can give your users shell access without having to fear that they can see your whole system. Your users will be jailed in a specific directory which they will not be able to break out of. The users will also be able to use SFTP in their chroot jails.

Your Fav PC

duplicity: Encrypted bandwidth-efficient backup using the rsync algorithm

Filed under
Software

DPotD: I’ve recently grown paranoid about my data, and I keep using rsync to keep backup of various files a bit everywhere. But it lacks fundamental things you would want from a real backup system. So I went looking for something else, and I found duplicity.

10 Reasons why you need an Open Source Strategy

Filed under
OSS

itToolbox blogs: Stop being dragged through constant product upgrades that you are forced to do to stay on a supported version of the product. Aren't you tired of telling your customers to wait because you have to spend a month or two upgrading to version 7.01G of Product X and following it up with an incremental hot fix?

Top 5 linux distro's

Filed under
Linux

pbreview.com: Well, I have been on a binge right now to test out the top 5 linux OS providers. I tried ubuntu, kubuntu, pclinuxOS2007, and fedora core 7 which I am running right now, and openSuSe10.2.

Filesystem Namespace Unification

Filed under
Linux

kernelTRAP: Bharata Rao posted a query to the Linux Kernel mailing list looking for ideas on how to best handle filesystem namespace unification with Union Mount, "typically this is done by reading the directory entries of all the union'ed layers (starting from the top and working downwards) and merging the result by eliminating the duplicate entries.

Also: Firewire Subsystems TODO Lists
And: Kernel Summit: customer panel and group photo

PC-BSD Day 4: Making a fresh start

Filed under
BSD

ruminations: The first few days I have been busy with installing and trying to install new software. Maybe I am weird and a software glutton, but I like my install base to be fat. The more software to play with, the better. Fooling around with the PBI’s, the commandline based install via pkg_add and testing out KPorts as a graphical frontend for the ports collection resulted in some mixed results.

Tagua Releases its First Alpha

Filed under
Software

dot.kde.org: Tagua, a generic boardgame for KDE, is approaching version 1.0, and the developers decided it's time to get the word out on this exceptionally cool application by releasing a first Alpha.

Zenwalk 4.6.1 on 450Mhz K6-2, 256Mb

Filed under
Linux

kmandla.wordpress.com: Ordinarily Zenwalk is mentioned in the same breath as distros like Xubuntu or Slax, as a full-featured alternative to something like Ubuntu, that generally has a quicker feel to it. I have suggested it to many people myself and for those same reasons, but this time my own advice turned out to be a disappointment.

The perfect start with Smoothwall Express 3.0

Filed under
Linux

Linux Tip: Smoothwall Express is an internet firewall, which allows you to protect your network, as well as providing NAT functionality. It is ease to use and configurable via a web-based GUI. This open source firewall distribution requires absolutely no knowledge of Linux to install or use. This workshop shows the installation and basic configuration of the current release Smoothwall Express 3.0.

Using justification in OOo Writer

Filed under
HowTos

Linux Journal: OpenOffice.org Writer is better at justification than most word processors and desktop publishing programs, but you need to be prepared to work at it. Before you set your paragraphs to full justification, you need to consider whether it's an appropriate choice for your layout. Then you need to set it up correctly, and be willing to tweak the results if you want results that are as professional as possible.

For Linux Lovers: The Penguin Mouse

Filed under
Hardware

softpedia: A computer mouse is no longer a simple object as nowadays it may come in a variety of shapes and sizes, colors and tones, bigger and smaller and sporting exotic or more common features. Among the shapes that a computer mouse can take these days is the shape of a little happy penguin, looking especially for those Linux lovers out there.

ASUS Eee PC expected to depress average selling prices for notebooks

Filed under
Hardware

arstechnica: For a system that hasn't even shipped yet, the ASUS Eee PC is certainly generating its share of hype. According to DigiTimes, the Eee could effectively decimate the UMPC market.

Fix a Frozen System with the Magic SysRq Keys

Filed under
HowTos

FOSSwire: You finally got your Linux environment to crash. Ctrl+Alt+Backspace does nothing, nor do the F-keys. You know you shouldn’t have installed that bad driver, but you did it anyway. So you reach for the power button. Stop.

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More in Tux Machines

Leftovers: BSD

Security Leftovers

  • Stop using SHA1 encryption: It’s now completely unsafe, Google proves
    Security researchers have achieved the first real-world collision attack against the SHA-1 hash function, producing two different PDF files with the same SHA-1 signature. This shows that the algorithm's use for security-sensitive functions should be discontinued as soon as possible. SHA-1 (Secure Hash Algorithm 1) dates back to 1995 and has been known to be vulnerable to theoretical attacks since 2005. The U.S. National Institute of Standards and Technology has banned the use of SHA-1 by U.S. federal agencies since 2010, and digital certificate authorities have not been allowed to issue SHA-1-signed certificates since Jan. 1, 2016, although some exemptions have been made. However, despite these efforts to phase out the use of SHA-1 in some areas, the algorithm is still fairly widely used to validate credit card transactions, electronic documents, email PGP/GPG signatures, open-source software repositories, backups and software updates.
  • on pgp
    First and foremost I have to pay respect to PGP, it was an important weapon in the first cryptowar. It has helped many whistleblowers and dissidents. It is software with quite interesting history, if all the cryptograms could tell... PGP is also deeply misunderstood, it is a highly successful political tool. It was essential in getting crypto out to the people. In my view PGP is not dead, it's just old and misunderstood and needs to be retired in honor. However the world has changed from the internet happy times of the '90s, from a passive adversary to many active ones - with cheap commercially available malware as turn-key-solutions, intrusive apps, malware, NSLs, gag orders, etc.
  • Cloudflare’s Cloudbleed is the worst privacy leak in recent Internet history
    Cloudflare revealed today that, for months, all of its protected websites were potentially leaking private information across the Internet. Specifically, Cloudflare’s reverse proxies were dumping uninitialized memory; that is to say, bleeding private data. The issue, termed Cloudbleed by some (but not its discoverer Tavis Ormandy of Google Project Zero), is the greatest privacy leak of 2017 and the year has just started. For months, since 2016-09-22 by their own admission, CloudFlare has been leaking private information through Cloudbleed. Basically, random data from random sites (again, it’s worth mentioning that every site that used CloudFlare in the last half year should be considered to having fallen victim to this) would be randomly distributed across the open Internet, and then indefinitely cached along the way.
  • Serious Cloudflare bug exposed a potpourri of secret customer data
    Cloudflare, a service that helps optimize the security and performance of more than 5.5 million websites, warned customers today that a recently fixed software bug exposed a range of sensitive information that could have included passwords and cookies and tokens used to authenticate users. A combination of factors made the bug particularly severe. First, the leakage may have been active since September 22, nearly five months before it was discovered, although the greatest period of impact was from February 13 and February 18. Second, some of the highly sensitive data that was leaked was cached by Google and other search engines. The result was that for the entire time the bug was active, hackers had the ability to access the data in real-time by making Web requests to affected websites and to access some of the leaked data later by crafting queries on search engines. "The bug was serious because the leaked memory could contain private information and because it had been cached by search engines," Cloudflare CTO John Graham-Cumming wrote in a blog post published Thursday. "We are disclosing this problem now as we are satisfied that search engine caches have now been cleared of sensitive information. We have also not discovered any evidence of malicious exploits of the bug or other reports of its existence."

Security Leftovers

  • Change all the passwords (again)
    Looks like it is time to change all the passwords again. There’s a tiny little flaw in a CDN used … everywhere, it seems.
  • Today's leading causes of DDoS attacks [Ed: The so-called 'Internet of things' (crappy devices with identical passwords) is a mess; programmers to blame, not Linux]
    Of the most recent mega 100Gbps attacks in the last quarter, most of them were directly attributed to the Mirai botnet. The Mirai botnet works by exploiting the weak security on many Internet of Things (IoT) devices. The program finds its victims by constantly scanning the internet for IoT devices, which use factory default or hard-coded usernames and passwords.
  • How to Set Up An SSL Certificate on Your Website [via "Steps To Secure Your Website With An SSL Certificate"]
  • SHA-1 is dead, long live SHA-1!
    Unless you’ve been living under a rock, you heard that some researchers managed to create a SHA-1 collision. The short story as to why this matters is the whole purpose of a hashing algorithm is to make it impossible to generate collisions on purpose. Unfortunately though impossible things are usually also impossible so in reality we just make sure it’s really really hard to generate a collision. Thanks to Moore’s Law, hard things don’t stay hard forever. This is why MD5 had to go live on a farm out in the country, and we’re not allowed to see it anymore … because it’s having too much fun. SHA-1 will get to join it soon.
  • SHA1 collision via ASCII art
    Happy SHA1 collision day everybody! If you extract the differences between the good.pdf and bad.pdf attached to the paper, you'll find it all comes down to a small ~128 byte chunk of random-looking binary data that varies between the files.
  • PayThink Knowledge is power in fighting new Android attack bot
    Android users and apps have become a major part of payments and financial services, carrying an increased risk for web crime. It is estimated that there are 107.7 million Android Smartphone users in the U.S. who have downloaded more than 65 million apps from the Google App Store, and each one of them represents a smorgasbord of opportunity for hackers to steal user credentials and other information.
  • Red Hat: 'use after free' vulnerability found in Linux kernel's DCCP protocol IPV6 implementation
    Red Hat Product Security has published details of an "important" security vulnerability in the Linux kernel. The IPv6 implementation of the DCCP protocol means that it is possible for a local, unprivileged user to alter kernel memory and escalate their privileges. Known as the "use-after-free" flaw, CVE-2017-6074 affects a number of Red Hat products including Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 and Red Hat Openshift Online v2. Mitigating factors include the requirement for a potential attacker to have access to a local account on a machine, and for IPV6 to be enabled, but it is still something that will be of concern to Linux users. Describing the vulnerability, Red Hat says: "This flaw allows an attacker with an account on the local system to potentially elevate privileges. This class of flaw is commonly referred to as UAF (Use After Free.) Flaws of this nature are generally exploited by exercising a code path that accesses memory via a pointer that no longer references an in use allocation due to an earlier free() operation. In this specific issue, the flaw exists in the DCCP networking code and can be reached by a malicious actor with sufficient access to initiate a DCCP network connection on any local interface. Successful exploitation may result in crashing of the host kernel, potential execution of code in the context of the host kernel or other escalation of privilege by modifying kernel memory structures."

Android Leftovers