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6
votes
1answer
219 views

How to have Linux wipe/randomize/sanitize RAM at shutdown?

For mysterious reasons I still double boot sometimes into Windows. My problem is that I fear that information may leak because the RAM memory is accessible to Windows. (the Linux partitions are ...
1
vote
0answers
102 views

Guide how to configure D-Bus safely?

Recently I have tried to improve the safety/security of my system by using Linux Security Modules LSM like (apparmor, grsecurity or NSA Selinux). In my case apparmor. Trying to limit untrusted ...
1
vote
3answers
113 views

Is it dangerous to remount a partition rw/ro frequently?

I'm developing an embedded linux system running on a SD card. To protect the SD against corruption I've used a read only root filesystem as well as an extra partition where I mount /home, also in ...
2
votes
1answer
50 views

Is it safe to `emerge -uavDN @world` while working?

In a related question, a few answers ("Yes", "...no problem", "typically... no problem") verify that it is safe to perform emerge -uavDN @world while working. Is it really so (for Funtoo/Gentoo)?
1
vote
2answers
723 views

installing/configuring and running sshguard on debian

I am trying to install/configure and run sshguard on debian, I want to check if brute force attacks happen on my server. I have installed it via apt-get, then I installed systemd and followed the ...
4
votes
3answers
410 views

When is it safe to disconnect my external HDD?

In Windows, there's an option to "safely remove hardware". Ignoring the fact that it almost always fails, and that most of the time I simply have to plug the device out, I get the initiative behind ...
4
votes
3answers
1k views

rm option to fail on nonexistent files

The man page of rm in GNU coreutils 8.12.197-032bb describes the -f or --force option as "ignore nonexistent files, never prompt". Without this option, it will remove any existing files, never prompt, ...