macOS Clear DNS cache

sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder
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macOS Get MD5/SHA checksum

$ md5 -r /sbin/md5 1b8448b7f10007bd1f9b2e1ee3f07912 /sbin/md5 $ shasum /sbin/md5 7de99f419b636f7ebd18b5c8fae67acba3aa668f /sbin/md5 $ shasum -a 256 /sbin/md5 f37ffa7cfb4e854479f8e1bae6e106342cb8dc5562d6259b8e4a858474f1704a /sbin/md5 $ shasum -a 512 /sbin/md5 16bf560de944216c79418fb9a38f3f7d3558226320eb51ce1ab1e33f553792018c9629a183390251f6321f7cd80a0df568e3d8926aeb98de7b0ef692f1388fcb /sbin/md5 $ shasum -a 512256 /sbin/md5 ad7541f42d72165af43a67c2e7bc6e2cfc36308e92b931befdc1d77e84f7d81c /sbin/md5
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macOS Get System Integrity Protection (SIP) status

$ csrutil status System Integrity Protection status: enabled.
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OpenWrt 18.06.0

The OpenWrt community is proud to announce the first release of the OpenWrt 18.
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WireGuard: Secure Network Tunnel

WireGuard is a secure network tunnel written especially for Linux, which has faced around three years of serious development, deployment, and scrutiny.
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The Road to QUIC

QUIC (Quick UDP Internet Connections) is a new encrypted-by-default Internet transport protocol, that provides a number of improvements designed to accelerate HTTP traffic as well as make it more secure, with the intended goal of eventually replacing TCP and TLS on the web.
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oomd is userspace Out-Of-Memory (OOM) killer for linux systems

We have developed oomd, a faster, more reliable solution to common out-of-memory (OOM) situations, which works in userspace rather than kernelspace.
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Light Raises 21 Million From SoftBank Vision Fund And Leica Camera AG

Light, the leader in advanced computational imaging, today announced a Series D funding round of $121 million, led by the SoftBank Vision Fund.
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Encrypted Server Name Indication for TLS 1.3

This document defines a simple mechanism for encrypting the Server Name Indication for TLS 1.
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An Invisible Tax on the Web: Video Codecs

Mozilla loves AV1 for two reasons: AV1 is royalty-free, so anyone can use it free of charge.
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