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Tag: Linux
26 April 2022
Manually Create an AppArmor Profile for Nginx
As described in the previous post, access control on Unix-like systems is traditionally based on the principle of Discretionary Access Control (DAC). Applications and services run under a specific user and group ID and are granted the corresponding access rights to files and folders. AppArmor implements a Mandatory Access Control for Linux, based on the […]
15 March 2022
Introduction to AppArmor
Fundamentally, access control under Linux is a simple matter: Files specify their access rights (execute, write, read) separately for their owner, their group, and finally, other users. Every process (whether a user’s shell or a system service) running on the system operates under a user ID and group ID, which are used for access control. […]
04 January 2018
The Processor as a Security Vulnerability
At the beginning of 2018, issues with memory management and Intel processors became public. According to these reports, it is apparently possible to read arbitrary areas of the kernel and userspace memory regions and thus potentially gain access to sensitive areas. Over the past few days, there have been rumors and speculations about the direction […]
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