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Joined 1 year ago
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Cake day: September 14th, 2023

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  • The problem with SELinux/nftables/cgroups is that they don’t come with a centralised log aggregator, and they don’t do much blocking beyond the defaults for 99% of deployments.

    You must not have heard of ®syslog.

    Also, SELinux is a massive pain to set up (even compared to AppArmor), and setting it up correctly is even worse.

    I beg to differ, I find SELinux easy to setup. But your mileage may vary, depending on one’s experience.

    CrowdStrike does a lot of what SELinux does but it’s easier to configure, works on every operating system, and comes with tools to roll out configuration across an organisation. There’s nothing close to that in the open source world. Even if you set up something yourself, you’ll need to continuously tweak your setup not to get in the way of employees and to prevent alert fatigue from all of the false positives. Apparently, recent events show it doesn’t work on every OS… 😜

    When talking about ease of use… Configuration is configuration. If you do not take the time to learn how to use your product, the product you know will always be better than the one you don’t. I’ve used Crowdstrike. I’ve battled them to get their kernel modules signing certificate to be signed by RedHat. I’ve battled them to have the possibility to have the auto update disabled. So no, I am not impressed by the quality of their product. I’ll bet any day a vanilla RHEL with the correct security related software and the latest updates outperforms and outclasses Crowdstrike.

    I think a preconfigured solution like Security Onion combined with tons of group policy and Ansible can form an open source alternative, but that only monitors, whereas CrowdStrike also blocks. To block behaviour, you’ll need to write code for most platforms, and that’s just as likely to take down your org as an auto update from CrowdStrike. I can’t speak of MS products, as I have not managed them for 20 years, but all of this is not needed on a decent Linux distro.











  • There is nothing more important than security patches on a system.

    I used to work at an FMI, which’s motto was “keep things stable”. Even the ciso department bought that crap. Until we hired a white hat hacker. The only thing given was the name of the company. He managed to get into the building, access an employee’s workstation and install a root kit on one of the most important financial message tracking systems (you know, the one that instructs other systems to transfer money), using a security bug, which would have been patched if they kept a regular (security) update cycle. After shit hit the fan, many people were fired and an update cycle was introduced.

    No system is important enough to not patch. And if you believe it is, you’re wrong.




  • You may also want to check up on regulations and laws of your country.

    In Belgium, for instance, I am responsible for any and all attacks originating from my PC. If you were hacked and said hackers used your computer to stage an attack, the burden of proof is upon you. So instead of hiring very expensive people to trace the real source of an attack originating from your own PC, enabling a firewall just makes sense, besides making it harder on hackers…






  • The question is not which tool should I use?

    The question is what is it that you want to achieve? That will drive your choice of tools.

    I want to mirror my drive can be achieved by a lot of tools. But I want to be able to restore a file I accidentally deleted up to 24 hours with a 1 hour interval is a totally different game.

    For backups I am very fond of restic as it does a lot of things in a simple way: encryption, (incremental) snapshots, mounting of said snapshots, support various storage backends, policy based purging, tagging, …

    Your tool may not be able to do all you need, like automated scheduled backups, so you will need to also learn cron (or whatever scheduler you may have)

    And finally, what about maintenance? What should happen to all those files you’ve synced? How long do you want to keep them?