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how to prevent DDoS attacks ?

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  • crazycellsundefined

    CSS codes to prevent votes to disappear

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    crazycellsundefined
    @phenomlab yes, it is thanks a lot…
  • DownPWundefined

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

    Security security server kernel ddos iptables
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    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

    Following the API docs but its not clear ...

    Solved Customisation api nodebb
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    phenomlabundefined
    @Panda you’d be surprised. If you consider that you’d need to use the API to be able to populate a WordPress widget for example (which in turn would of course be PHP), taking this route is still immensely popular.
  • dave1904undefined

    Collapsing blockquotes on Harmony

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    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?
  • crazycellsundefined

    Custom badges

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    DownPWundefined
    Perfect
  • cagatayundefined

    who is read NodeBB

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    phenomlabundefined
    @cagatay You should ask in the NodeBB forums. Perhaps reference this post https://discuss.flarum.org/d/23066-who-read
  • crazycellsundefined

    CSS codes for fa-info icon

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    crazycellsundefined
    I have just figured it out… it can be targeted with text-decoration-color: I was mistakenly using color
  • DownPWundefined

    [NODEBB] Welcome Message

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    phenomlabundefined
    @DownPW the ‘js’ code for the banner takes the time from the client, so what it displays really depends on the regional settings for the operating system. I’ve not seen this issue myself but would like to see some examples of screenshots if possible.