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 @hsoc: Merry Christmas @hellasdirect 🎅🎄 https://t.co/V7xxbjw9YS 5 months ago

RT @bad_packets: It's not DNS There's no way it's DNS It was DNS twitter.com/BleepinCompute… 10 months ago

RT @PowerDNS_Bert: Dear EU: Cyber security is important, but please don’t #RuinTheRoot by regulating the non-essential entities that run th… 1 year ago

RT @_argp: BugTraq Shutdown, end of an era: "At this time, resources for the BugTraq mailing list have not been prioritized, and this will… 1 year ago

RT @jpmens: IT WASN’T DNS twitter.com/atoonk/status/… 1 year ago

RT @fanf: “For the first time, nginx is in use by more web-facing computers than any other web server, including Apache” https://t.co/rscQy… 1 year ago

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

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Linux Weekly News

LWN is now on Mastodon

For readers who want to follow our article stream on Mastodon, LWN now (finally) has a presence in the Fosstodon community; you can find us at @LWN@fosstodon.org.

corbet

[$] Preserving guest memory across kexec

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[$] Fixing a race in hugetlbfs

As the memory-management track at the 2022 Linux Storage, Filesystem, Memory-management and BPF Summit (LSFMM) neared its conclusion, Mike Kravetz ran a session remotely to talk about page sharing with hugetlbfs, which is a special filesystem that provides access to huge pages. (See this article series for lots of information about hugetlbfs). Hugetlbfs can […]

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[$] get_user_pages() and COW, 2022 edition

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Security updates for Friday

Security updates have been issued by CentOS (kernel), Debian (ark, openldap, and thunderbird), Fedora (freetype and vim), Oracle (.NET 5.0, .NET 6.0, .NET Core 3.1, container-tools:3.0, glibc, kernel, rsync, and subversion:1.10), Scientific Linux (kernel), SUSE (dcraw, firefox, glib2, ImageMagick, kernel-firmware, libxml2, libyajl, php7, ucode-intel, and unr […]

jake

Rust 1.61.0 released

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[$] Cleaning up dying control groups, 2022 edition

Control groups are a useful system-management feature, but they can also consume a lot of resources, especially if they hang around on the system after they have been deleted. Roman Gushchin described the problems that can result at the 2019 Linux Storage, Filesystem, Memory-management and BPF Summit (LSFMM); he returned during the 2022 LSFMM to revisit the […]

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[$] CXL 2: Pooling, sharing, and I/O-memory resources

During the final day of the 2022 Linux Storage, Filesystem, Memory-management and BPF Summit (LSFMM), attention in the memory-management track turned once again to the challenges posed by the upcoming Compute Express Link (CXL) technology. Two sessions looked at different problems posed by CXL memory, which can come and go over the operation of the system. C […]

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Huang: Rust: A Critical Retrospective

Andrew 'bunnie' Huang has posted an extensive review of the Rust language derived from the experience of writing "over 100k lines" of code. Rust is a difficult language for authoring code because it makes these "cheats" hard – as long as you have the discipline of not using "unsafe" constructions to make cheats easy. H […]

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Security updates for Thursday

Security updates have been issued by Fedora (microcode_ctl, rubygem-nokogiri, and vim), Mageia (htmldoc, python-django, and python-oslo-utils), Red Hat (container-tools:2.0, kernel, kernel-rt, kpatch-patch, and pcs), SUSE (ardana-barbican, grafana, openstack-barbican, openstack-cinder, openstack-heat-gbp, openstack-horizon-plugin-gbp-ui, openstack-ironic, op […]

jake

	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