While cleaning up I found a stack of old chipcards and got curious. Here’s the full, honest log of getting a Proxmark3 built, flashed, and reading/writing Mifare Classic cards — segfaults, all-zero dumps, and every gotcha in between.
Tag: Linux
Update 11.12.2021: Finally got a new test machine and started re-evaluating the current situation. The tests were done on a Quad-Core i5 system, using a 24 GB RAM disk (32 GB RAM total). System is Ubuntu 20.04 (x86_64). Basic test were done using fio with variations of this command: The different benchmark scenarios are these: […]
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NFS version 3 and 4 compared
There have been quite some changes between versions 3 and 4 of the NFS protocol. From an administrator’s perspective, the following changes were introduced: User / group id mapping:Version 3 and below used a numeric user / group id based mapping: so a user with user id 1000 on the client was mapped to a […]