Getting a lot of spam from .tk domains – kill it with spamassassin

Seems they are cheap to set up, spammers set up domainkeys / SPF too! Here’s a spamassassin rule (don’t use it if you get valid mail from .tk): header      NAUGHTY_FROM_TLD  From   =~ /@[a-z0-9\-\.]+\.(tk)/i describe    NAUGHTY_FROM_TLD  From address is from a naughty TLD (eg .tk) score       NAUGHTY_FROM_TLD  2.8 UPDATE: Looks like the spammers get a free …

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Systemd programming, 30 months later [LWN.net]

Some time ago, we published a pair of articles about systemd programming that extolled the value of providing high-quality unit files in upstream packages. The hope was that all distributions would use them and that problems could be fixed centrally rather than each distribution fixing its own problems independently. Now, 30 months later, it seems …

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Google introduce a new TCP congestion control algorithm

This commit implements a new TCP congestion control algorithm: BBR (Bottleneck Bandwidth and RTT). A detailed description of BBR will be published in ACM Queue, Vol. 14 No. 5, September-October 2016, as “BBR: Congestion-Based Congestion Control”. BBR has significantly increased throughput and reduced latency for connections on Google’s internal backbone networks and google.com and YouTube …

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