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how to prevent DDoS attacks ?

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  • DownPWundefined

    Block Domain

    Solved Let's Build It
    26
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    26 Posts
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    DownPWundefined

    Yes ogproxy too is functionnal on dev

  • DownPWundefined

    Setting for high load and prevent DDoS (sysctl, iptables, crowdsec or other)

    Security
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    4 Posts
    635 Views
    phenomlabundefined

    @DownPW 🙂 most of this really depends on your desired security model. In all cases with firewalls, less is always more, although it’s never as clear cut as that, and there are always bespoke ports you’ll need to open periodically.

    Heztner’s DDoS protection is superior, and I know they have invested a lot of time, effort, and money into making it extremely effective. However, if you consider that the largest ever DDoS attack hit Cloudflare at 71m rps (and they were able to deflect it), and each attack can last anywhere between 8-24 hours which really depends on how determined the attacker(s) is/are, you can never be fully prepared - nor can you trace it’s true origin.

    DDoS attacks by their nature (Distributed Denial of Service) are conducted by large numbers of devices whom have become part of a “bot army” - and in most cases, the owners of these devices are blissfully unaware that they have been attacked and are under command and control from a nefarious resource. Given that the attacks originate from multiple sources, this allows the real attacker to observe from a distance whilst concealing their own identity and origin in the process.

    If you consider the desired effect of DDoS, it is not an attempt to access ports that are typically closed, but to flood (and eventually overwhelm) the target (such as a website) with millions of requests per second in an attempt to force it offline. Victims of DDoS attacks are often financial services for example, with either extortion or financial gain being the primary objective - in other words, pay for the originator to stop the attack.

    It’s even possible to get DDoS as a service these days - with a credit card, a few clicks of a mouse and a target IP, you can have your own proxy campaign running in minutes which typically involves “booters” or “stressers” - see below for more

    https://heimdalsecurity.com/blog/ddos-as-a-service-attacks-what-are-they-and-how-do-they-work

    @DownPW said in Setting for high load and prevent DDoS (sysctl, iptables, crowdsec or other):

    in short if you have any advice to give to secure the best.

    It’s not just about DDos or firewalls. There are a number of vulnerabilities on all systems that if not patched, will expose that same system to exploit. One of my favourite online testers which does a lot more than most basic ones is below

    https://www.immuniweb.com/websec/

    I’d start with the findings reported here and use that to branch outwards.

  • Pandaundefined

    Upgrade to NodeBB v3? 2BB or not 2BB, that is the question!

    Solved Configure
    8
    4 Votes
    8 Posts
    447 Views
    phenomlabundefined

    @Panda said in Upgrade to NodeBB v3? 2BB or not 2BB, that is the question!:

    So although thats a plugin it has Widget like element and stopped working on the Theme change

    Which is normal based on the widgets being reset when you change themes.

  • Pandaundefined

    NodeBB inline videoplayer

    Solved Customisation
    12
    3 Votes
    12 Posts
    891 Views
    Pandaundefined

    @phenomlab
    YAY! It works
    Thanks so much

  • Pandaundefined

    Adding fileWrite to nodebb code

    Solved Configure
    16
    5 Votes
    16 Posts
    752 Views
    phenomlabundefined

    @eveh this might be a question for the NodeBB Devs themselves. In all honesty, I’m not entirely sure without having to research this myself.

  • DownPWundefined

    Blinking text Effect

    Customisation
    3
    5 Votes
    3 Posts
    449 Views
    DownPWundefined

    @phenomlab

    I love it too

    @phenomlab said in Blinking text Effect:

    Has that “broken neon light” look that you see in films.

    It’s exactly that, kind of old neon signs of bar or pubs a bit cyberpunk too 😉

  • JACundefined

    NodeBB templates

    Locked Chitchat
    12
    4 Votes
    12 Posts
    928 Views
    phenomlabundefined

    Placing this here for reference
    https://sudonix.com/topic/216/nodebb-js-script-css-theme-switcher

    Further information and posts can be found at this link

  • JACundefined

    Customising NodeBB

    Locked Customisation
    3
    0 Votes
    3 Posts
    737 Views
    phenomlabundefined

    Closing this thread as a duplicate of https://sudonix.com/topic/12/nodebb-customisation