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Hi, I’m Malcolm. While investigating a separate network issue at work, we observed unexpected Ethernet link behavior on an embedded ARM system.
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NFSv3: Open Says Me, No Sesame Required
NFSv3 with AUTH_SYS trusts whatever UID and GID the client claims. Where it serves home directories, an unprivileged user can become any other user: read their files, write to public SSH keys and shell rc files, and create SUID binaries owned by other use
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Stratum 1 PTP Grandmaster: CM4 + SR1723U10 (Part 1)
Building a GPS-disciplined PTP grandmaster from a Raspberry Pi CM4 and SR1723U10 GPS module. Part 1 of the homelab PTP series.
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