All Questions
Tagged with linux-kernel security
5
questions
0
votes
0
answers
553
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High CPU load on SYN flood
When being under SYN flood attack, my CPU reach to 100% in no time by the kernel proccess named ksoftirqd,
I tried so many mitigations but none solve the problem.
This is my sysctl configurations ...
- 103
3
votes
1
answer
475
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How to isolate a drive?
Question
At Linux boot, is there an option I can add to the “vmlinuz…” line that will prevent the OS from ever (at least in that session) being able to see or access NVMe SSDs - while keeping all ...
- 33
2
votes
1
answer
10k
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How to Turn Off KPTI to Improve Performance in Fedora
Following the outbreak of KPTI news, I recently updated my kernel to 4.14.11-300. In addition to a quite sufficient RAM (8 GB) and fast IO (SSD disk), I have started to feel remarkable slowdown in my ...
- 6,897
1
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1
answer
680
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How does encrypting /home partition with ecryptfs on linux stop malicious modification of /boot or /(root)?
This is a page where a developer of ecryptfs explains the difference between ecryptfs and dm-crypt: https://stackoverflow.com/questions/18230784/what-is-difference-between-linux-kernel-subsystem-dm-...
- 71.4k
1
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1
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Linux - Whitelist hardware devices
For security purposes, is it possible to have the operating system enforce a whitelist of hardware devices?
This means that plugged in devices that are not in the whitelist will be ignored at an as ...
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