Δεκέμβριος 2010 – Don't fear the penguin

Write a regular expression to match a MAC address. Go.

Take 1: ([0-9a-f]{2}:){5}[0-9a-f]{2}
Matches: 00:19:db:d0:8e:3c

Take 2: ([0-9a-fA-F]{1,2}[:-]){5}[0-9a-fA-F]{1,2}
Matches: 00-c-DB-a0-8E-f

RT @skaragiannis: In case you missed it https://t.co/X3FUqYZYqZ 2 months ago

RT @QuinnyPig: The best part about this question is that (aside from the third answer's "single digit millisecond latency") I can make it d… 4 months ago

RT @ripencc: Today, at 15:35, we made our final /22 IPv4 allocation from the last remaining addresses in our available pool. We have now ru… 6 months ago

RT @hellasdirect: Sotiris Tsimbonis, our infrastructure and automation lead, has been with us from day 1. Today, we are proud to see him ex… 7 months ago

#WWDC19 1 year ago

RT @RedHatSummit: Let’s keep the excitement going! 🎉Join us in the Ecosystem Expo Hall to celebrate the general release of #RHEL8 https://t… 1 year ago

RT @hellasdirect: Best Workplace για μία ακόμη φορά η @hellasdirect στα φετινά βραβεία @GPTW_GR 😃 #rethink #BestWorkplaces #proud https://t… 1 year ago

Woohoo! Our copy of Ship It: The Game of Product Management by @PostlightStudio has arrived! Time to play and… twitter.com/i/web/status/1… 1 year ago

@Fosscomm2018 Το stream της αίθουσας Α2 δεν έχει ήχο, please fix 1 year ago

Thank you @hellasdirect for the love and wonderful #SysAdminDay surprise this morning! <3 photos.app.goo.gl/TNaxg1ZXiB3WjP… 1 year ago

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Linux Weekly News

[$] DMA-BUF cache handling: Off the DMA API map (part 1)

Recently, the DMA-BUF heaps interface was added to the 5.6 kernel. This interface is similar to ION, which has been used for years by Android vendors. However, in trying to move vendors to use DMA-BUF heaps, we have begun to see how the DMA API model doesn't fit well for modern mobile devices. Additionally, the lack of clear guidance in how to handle ca […]

corbet

Security updates for Thursday

Security updates have been issued by Debian (firefox-esr), Fedora (firefox and prboom-plus), Oracle (bind), Red Hat (firefox), and SUSE (osc).

jake

[$] LWN.net Weekly Edition for June 4, 2020

The LWN.net Weekly Edition for June 4, 2020 is available.

corbet

[$] The history and evolution of PHP governance

The PHP language is widely used in solving some of the most interesting technical problems on the web. But for a language with widespread use, it is unique — or at least an outlier — in the way it's governed compared to other open-source projects. Unlike others, PHP governance has grown into something fairly democratic for a project its size, allowing a […]

coogle

FreeNAS is coming to Linux

The FreeNAS distribution implements network-attached storage on top of the ZFS filesystem; it was reviewed here back in 2015. FreeNAS has always been based on FreeBSD, but now iXsystems, the company behind this system, has announced a new version, called TrueNAS SCALE, that will be based on Debian. "Linux is a key requirement to achieve some of the SCAL […]

corbet

[$] Free user space for non-graphics drivers

In the kernel graphics world, there has been a longstanding "line in the sand" that disallows merging kernel drivers without a corresponding free-software user-space driver. The idea is that not having a way to test the full functionality means that the kernel developers cannot verify the proper functioning and security of the driver; changes to th […]

jake

Stable kernel updates

Stable kernels 5.6.16, 5.4.44, 4.19.126, 4.14.183, 4.9.226, and 4.4.226 have been released. They all contain important fixes and users should upgrade.

ris

Security updates for Wednesday

Security updates have been issued by Fedora (java-11-openjdk, perl-Email-MIME, perl-Email-MIME-ContentType, and slurm), openSUSE (imapfilter, mailman, and python-rpyc), Red Hat (bind and firefox), SUSE (evolution-data-server, python, qemu, and w3m), and Ubuntu (python-django).

ris

Devuan Beowulf 3.0.0 released

Devuan Beowulf 3.0.0 has been released. This version is based on Debian 10.4 Buster, with eudev and elogind to replace aspects of systemd. Optional alternatives runit and openrc are also available.

ris

[$] Development statistics for the 5.7 kernel

The 5.7 kernel was released on May 31. By all appearances this was a normal development cycle, unaffected by the troubles in the wider world. Still, there are things to be learned by looking at where the code came from this time around. Read on for LWN's traditional look at who contributed to 5.7, who supported that work, and the paths by which it got i […]

corbet

SANS Internet Storm Center

ISC Stormcast For Friday, June 5th 2020 https://isc.sans.edu/podcastdetail.html?id=7026, (Fri, Jun 5th) 5 Ιουνίου, 2020

Suspending Suspicious Domain Feed / Update to Researcher IP Feed, (Thu, Jun 4th) 4 Ιουνίου, 2020

Yesterday, Peter from DNSFilter send us a message noting that many of the domains in our "Suspicious Domain" feed no longer resolved, and some of the feeds we used as input were no longer maintained. After investigating, I have to agree with him. The remaining feeds don&#39;t make a valuable service at this point. The idea of the […]

Anti-Debugging Technique based on Memory Protection, (Thu, Jun 4th) 4 Ιουνίου, 2020

Many modern malware samples implement defensive techniques. First of all, we have to distinguish sandbox-evasion and anti-debugging techniques. Today, sandboxes are an easy and quick way to categorize samples based on their behavior. Malware developers have plenty of tests to perform to detect the environment running their code. There are plenty of them, som […]

ISC Stormcast For Thursday, June 4th 2020 https://isc.sans.edu/podcastdetail.html?id=7024, (Thu, Jun 4th) 4 Ιουνίου, 2020

ISC Stormcast For Wednesday, June 3rd 2020 https://isc.sans.edu/podcastdetail.html?id=7022, (Wed, Jun 3rd) 3 Ιουνίου, 2020

Polish malspam pushes ZLoader malware, (Thu, Jun 4th) 3 Ιουνίου, 2020

Introduction

ISC Stormcast For Tuesday, June 2nd 2020 https://isc.sans.edu/podcastdetail.html?id=7020, (Tue, Jun 2nd) 2 Ιουνίου, 2020

XLMMacroDeobfuscator: An Update, (Mon, Jun 1st) 1 Ιουνίου, 2020

XLMMacroDeobfuscator is an open-source tool to deobfuscate Excel 4 macros. I wrote diary entries about it here and here.

Windows 10 Built-in Packet Sniffer - PktMon, (Sun, May 31st) 1 Ιουνίου, 2020

Microsoft released with the October 2018 Update a built-in packet sniffer for Windows 10 located in C:\Windows\system32\PktMon.exe. At ISC we like packets and this is one of the multiple ways to capture packets and send us a copy for analysis. Rob previously published another way of capturing packets in Windows here. If Windows 10 was compromised, this appli […]

ISC Stormcast For Monday, June 1st 2020 https://isc.sans.edu/podcastdetail.html?id=7018, (Mon, Jun 1st) 1 Ιουνίου, 2020

	Michail στη Ελληνικά ή Αγγλικά;
	adamo στη Ελληνικά ή Αγγλικά;
	Michail στη Ελληνικά ή Αγγλικά;
	Michail στη Ελληνικά ή Αγγλικά;
	cvi going distribute… στη version control for important…
	bilias στη It’s a girl!
	Sotiris Tsimbonis στη It’s a girl!
	kioan στη It’s a girl!
	kzorba στη It’s a girl!
	Sotiris Tsimbonis στη It’s a girl!

Μήνας: Δεκέμβριος 2010

Now we know where sudo reports

A regular expression to match MAC Addresses

IPv6 Certified Sage