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Tutorial for secure emailing with personal domain,Cloudflare, virtualmin and postfix

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  • Hariundefined

    Adjusting HSTS settings for public wifi's

    Solved Security
    4
    2 Votes
    4 Posts
    208 Views
    phenomlabundefined

    @Hari Ok, no issues. Keep me posted…

  • Hariundefined

    Setting up Ghost DIgitalOcean droplet with cloudflare

    General
    11
    4 Votes
    11 Posts
    392 Views
    phenomlabundefined

    @Hari Really? Can you elaborate a bit more here?

  • cagatayundefined

    MailGun Not Working NodeBB

    Solved Configure
    6
    1 Votes
    6 Posts
    251 Views
    cagatayundefined

    @phenomlab did it 🙂 i did not create smtp user on mailgun. everything is working now.

    6cc6061f-ed5d-41f6-8eb7-5d98f98b3706-image.png

  • Hariundefined

    how to use CF tunnels with Virtualmin?

    Solved Configure
    10
    3 Votes
    10 Posts
    781 Views
    phenomlabundefined

    @Hari DDoS protection is not just a switch, or one component. It’s a collection of different and often disparate technologies that when grouped together form the basis of a combined toolset that can be used in defence.

    Typically these consist of IDS (Instrusion Detection System) and IPS (Intrusion Prevention System) components that detect irregularities in network traffic, and will take decisive action based on predefined rulesets, or in the case of more modern systems, AI and ML.

    Traditional “traffic shaping” technology is also deployed, so if an attack cannot be easily identified as malicious, the bandwidth available to that connection is severely limited to nothing more than a trickle rather than a full flow.

    Years ago, ISP’s used traffic shaping (also called “policers”) as an effective means of stopping applications such as BearShare, eDonkey, Napster, and other P2P based sharing systems from functioning correctly - essentially reducing the “appeal” of distributing and seeding illegal downloads. This was essentially the ISP’s way of saying “stop what you are doing please” without actually pulling the plug.

    These days, DDoS attacks are designed to overwhelm - not assume control of - webservers and other public facing components. It’s rare for small entities to be attacked unless there is some form of political agenda driven by your site or product. A classic example is governmental institutions or lawmakers who effectively are classed as “enforcers” and those who disagree are effectively making a statement in the form of Denial of Service.

    DDoS protection is effectively the responsibility of the hosting provider, but you shouldn’t just assume that they will protect you or your site. Their responsibility stops at their infrastructure, so it’s then up to you too decide how you full the gap in between your host and the website.

    Typically, you’d leverage something like Imunify360 which you can get for Plesk (and something I’d strongly recommend) but it’s not free, and is a paid (not expensive per month) subscription. If you want to use VirtualMin then there are a variety of tools readily available out of the box such as firewalls and fail2ban.

  • Hariundefined

    speed up my DigitalOcean droplet - Virtualmin

    Solved Configure
    10
    4 Votes
    10 Posts
    602 Views
    Hariundefined

    @phenomlab thanks for sharing, after four or five months I will migrate to DO 2 or 4gb RAM droplet. 👍

  • Hariundefined

    Issues getting Flarum to work on new host

    Solved Configure
    65
    14 Votes
    65 Posts
    6k Views
    phenomlabundefined

    @crazycells huh. Thanks. Will need to check that as well.

  • Hariundefined

    Best Cloudflare settings for woo commerce

    Solved WordPress
    2
    1 Votes
    2 Posts
    266 Views
    phenomlabundefined

    @hari the cache level for woocommerce should always be bypass. Any caching of woocommerce will cause you serious issues and will result in the checkout process not functioning correctly.

    This does mean that the overall experience will be slower (depending on geographic location) although CF is known to cause significant issues hence the need to bypass.

    If you want to cache as much as possible, then set rules to bypass caching on the cart and account pages etc.

  • JACundefined

    Email issue (virturalmin)

    Solved Hosting
    5
    0 Votes
    5 Posts
    330 Views
    JACundefined

    @gotwf said in Email issue (virturalmin):

    @jac Typically you want your domain’s MX records to point to FQDN server name, e.g. foo.example.eg

    % drill stockportcounty.fans mx ;; ->>HEADER<<- opcode: QUERY, rcode: NOERROR, id: 63911 ;; flags: qr rd ra ; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;; stockportcounty.fans. IN MX ;; ANSWER SECTION: stockportcounty.fans. 600 IN MX 10 stockportcounty.fans.

    Yours do not. Although a bit more drillin’ and reverse lookup indicates thusly;

    % drill stockportcounty.fans ;; ->>HEADER<<- opcode: QUERY, rcode: NOERROR, id: 160 ;; flags: qr rd ra ; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;; stockportcounty.fans. IN A ;; ANSWER SECTION: stockportcounty.fans. 600 IN A 65.108.63.35 ;; AUTHORITY SECTION: ;; ADDITIONAL SECTION: ;; Query time: 127 msec ;; SERVER: 204.8.232.207 ;; WHEN: Sun Oct 10 19:37:02 2021 ;; MSG SIZE rcvd: 54 <kvg@loon:~>% drill -x 65.108.63.35 ;; ->>HEADER<<- opcode: QUERY, rcode: NOERROR, id: 57802 ;; flags: qr rd ra ; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;; 35.63.108.65.in-addr.arpa. IN PTR ;; ANSWER SECTION: 35.63.108.65.in-addr.arpa. 86400 IN PTR vps.stockportcounty.fans.

    I think you probably want your mx record to point to vps.stockportcountry.fans.

    It is important for forward and reverse lookups for MX records jive. Maybe you are looking like a spammer in that they do not?

    Edit: But at least you have a reverse record, many spammers do not, so that is a big red flag.

    Thanks for the advice, will look into it all later once back home.