From 2a26a582b5217524a82bb47646f470fb82e8a419 Mon Sep 17 00:00:00 2001 From: Silvio Rhatto Date: Tue, 18 Apr 2017 20:28:48 -0300 Subject: Adds research/hardened --- research/hardened.mdwn | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 research/hardened.mdwn (limited to 'research') diff --git a/research/hardened.mdwn b/research/hardened.mdwn new file mode 100644 index 0000000..15acd17 --- /dev/null +++ b/research/hardened.mdwn @@ -0,0 +1,28 @@ +[[!meta title="Hardened OS"]] + +grsecurity +---------- + +Basic install: + + sudo apt-get -t jessie-backports install linux-image-4.9.0-2-grsec-amd64 linux-image-grsec-amd64 + sudo apt-get install paxtest + sudo usermod -aG grsec-tpe `whoami` + +As root: + + echo "kernel.grsecurity.rwxmap_logging = 0" > /etc/sysctl.d/kernel.grsecurity.rwxmap_logging.conf + echo "kernel.grsecurity.grsec_lock = 1" > /etc/sysctl.d/kernel.grsecurity.grsec_lock.conf + +As regular user, after reboot: + + paxctl -cm /usr/bin/git-annex + paxctl -cm /usr/bin/qemu-img + paxctl -cm /usr/bin/qemu-system-x86_64 + +References +---------- + +* https://micahflee.com/2016/01/debian-grsecurity/ +* https://nixaid.com/grsec-in-docker/ +* https://hardenedlinux.github.io/ -- cgit v1.2.3