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how to prevent DDoS attacks ?

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  • crazycellsundefined

    CSS code customization for the link preview plugin

    Solved Customisation
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    4 Posts
    191 Views
    phenomlabundefined

    @crazycells said in CSS code customization for the link preview plugin:

    does OGProxy show the pdf previews as well?

    Not yet, but it could with a bit of additional code.

  • phenomlabundefined

    Threaded post support for NodeBB

    Let's Build It
    146
    50 Votes
    146 Posts
    18k Views
    phenomlabundefined

    Updated git for above change

    https://github.com/phenomlab/nodebb-harmony-threading/commit/14a4e277521d83d219065ffb14154fd5f5cfac69

  • DownPWundefined

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

    Security
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    0 Votes
    4 Posts
    397 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

    Where are widgets stored?

    Solved Configure
    3
    1 Votes
    3 Posts
    171 Views
    Pandaundefined

    @phenomlab Thanks, have DMed you

  • dave1904undefined

    Collapsing blockquotes on Harmony

    General
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    2 Votes
    2 Posts
    122 Views
    phenomlabundefined

    @dave1904 that’s a really good point actually. I know it was there previously on Persona, but you’re right - no such function exists on harmony.

    However, putting something in place to mimick the behaviour of Persona won’t be hard from the js standpoint, although I wonder if perhaps we should ask the NodeBB developers is this feature was overlooked?

  • Pandaundefined

    restarting nodebb on boot

    Unsolved Configure
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    1 Votes
    3 Posts
    220 Views
    phenomlabundefined

    @eeeee said in restarting nodebb on boot:

    can I just run nodebb under nodemon for auto restarts?

    It’s a better method. Nodemon just looks for file system changes and would effectively die if the server was rebooted meaning you’d have to start it again anyway. Systemd is the defacto standard which is how the operating system interacts in terms of services, scheduled tasks etc.

  • elhana fineundefined

    Editing a reputation for a user in a nodeBB based forum

    Solved Customisation
    9
    5 Votes
    9 Posts
    935 Views
    crazycellsundefined

    is there any way to see whose reputation is changed by this plugin?

  • JACundefined

    RSS parser script [NodeBB]

    Customisation
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    9 Votes
    47 Posts
    4k Views
    JACundefined

    @phenomlab said in RSS parser script [NodeBB]:

    @jac Not yet. Sorry. Have some other work commitments I need to prioritise. Hoping to get to this over the weekend.

    No worries at all mate, thanks 👍🏻