Skip to content
Sudonix

sudonix

how to prevent DDoS attacks ?

Solved Vulnerability
Log in to reply

21/34

17 Nov 2023, 17:54

Threaded Replies

Related Topics
  • Pandaundefined

    Nodebb and emails

    Solved Configure
    34 21 Dec 2024, 20:45
    21 Dec 2024, 20:45
    5 Votes
    27 Posts
    899 Views
    phenomlabundefined
    @Panda it will use SMTP. In all cases, I never use any plugin to send email. I’ll always send it raw.
  • phenomlabundefined

    Threaded post support for NodeBB

    Let's Build It
    34 4 Sept 2023, 13:26
    4 Sept 2023, 13:26
    3
    50 Votes
    146 Posts
    23k 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
    34 2 Aug 2023, 13:41
    2 Aug 2023, 13:41
    0 Votes
    4 Posts
    822 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
    34 16 Jun 2023, 11:36
    16 Jun 2023, 11:36
    1 Votes
    3 Posts
    292 Views
    Pandaundefined
    @phenomlab Thanks, have DMed you
  • phenomlabundefined

    NodeBB v3 and Harmony Theme

    Discussion
    34 16 Dec 2022, 14:59
    16 Dec 2022, 14:59
    13 Votes
    22 Posts
    2k Views
    phenomlabundefined
    Been playing with the user profile page this afternoon. Thought I’d post a video as I’m really pleased with how this came out profile-screen-capture.webm
  • cagatayundefined

    Top Ranked Forums

    Chitchat
    34 28 Oct 2022, 14:29
    28 Oct 2022, 14:29
    1
    3 Votes
    9 Posts
    771 Views
    phenomlabundefined
    The real issue here is that most people consider forums to be “dead” in the sense that nobody uses them anymore, and social media groups have taken their place. Their once dominant stance in the 90’s and early 00’s will never be experienced again, but having said that, there are a number of forums that did in fact survive the social media onslaught, and still enjoy a large user base. Forums tend to be niche. One that immediately sticks out is Reddit - despite looking like it was designed in the 80s, it still has an enormous user base. Another is Stack Overflow, which needs no introduction. The key to any forum is the content it offers, and the more people whom contribute in terms of posting , the more popular and widely respected it becomes as a reliable source of information. Forums are still intensely popular with gamers, alongside those that offer tips on hacking etc.
  • pwsincdundefined

    Fontawesome 5

    Unsolved Customisation
    34 27 Mar 2022, 16:22
    27 Mar 2022, 16:22
    1 Votes
    14 Posts
    1k Views
    phenomlabundefined
    @pwsincd hi. Just following up on this thread (I know it’s old) but was curious to understand if it’s still an issue or not ?
  • crazycellsundefined

    is "night mode" shifting the forum several pixels up?

    Solved Configure
    34 4 Mar 2022, 20:16
    4 Mar 2022, 20:16
    4 Votes
    8 Posts
    750 Views
    phenomlabundefined
    @crazycells hmm. Good point. I actually use my own version of the dark mode plugin, so not entirely sure. However, I think the CSS is probably the same. I’m not at my PC currently but can check and advise later.