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  • Madchatthewundefined

    Linux Certification

    Linux
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    phenomlabundefined

    @Madchatthew You might be sorry you asked 🙂 This is the mentoring category below. Presently, it’s unused, but we have a dedicated area for it.

    https://sudonix.org/category/8/mentoring

    Other services

    https://sudonix.org/services

  • Pandaundefined

    Is nginx necessary to use?

    Moved Solved Hosting
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    phenomlabundefined

    @Panda said in Cloudflare bot fight mode and Google search:

    Basic question again, is nginx necessary to use?

    No, but you’d need something at least to handle the inbound requests, so you could use Apache, NGINX, Caddy… (there are plenty of them, but I tend to prefer NGINX)

    @Panda said in Cloudflare bot fight mode and Google search:

    Do these two sites need to be attached to different ports, and the ports put in the DNS record?

    No. They will both use ports 80 (HTTP) and 443 (HTTPS) by default.

    @Panda said in Cloudflare bot fight mode and Google search:

    Its not currently working, but how would the domain name know which of the two sites to resolve to without more info?
    Currently it only says the IP of the whole server.

    Yes, that’s correct. Domain routing is handled (for example) at the NGINX level, so whatever you have in DNS will be presented as the hostname, and NGINX will expect a match which once received, will then be forwarded onto the relevant destination.

    As an example, in your NGINX config, you could have (at a basic level used in reverse proxy mode - obviously, the IP addresses here are redacted and replaced with fakes). We assume you have created an A record in your DNS called “proxy” which resolves to 192.206.28.1, so fully qualified, will be proxy.sudonix.org in this case.

    The web browser requests this site, which is in turn received by NGINX and matches the below config

    server { server_name proxy.sudonix.org; listen 192.206.28.1; root /home/sudonix.org/domains/proxy.sudonix.org/ogproxy; index index.php index.htm index.html; access_log /var/log/virtualmin/proxy.sudonix.org_access_log; error_log /var/log/virtualmin/proxy.sudonix.org_error_log; location / { proxy_set_header Access-Control-Allow-Origin *; proxy_set_header Host $host; proxy_pass http://localhost:2000; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_set_header X-Api-Key $http_x_api_key; } location /images { index index.php index.htm index.html; root /home/sudonix.org/domains/proxy.sudonix.org/ogproxy; } fastcgi_split_path_info "^(.+\.php)(/.+)$"; listen 192.206.28.1:443 ssl http2; ssl_certificate /home/sudonix.org/domains/proxy.sudonix.org/ssl.combined; ssl_certificate_key /home/sudonix.org/ssl.key; }

    The important part here is server_name proxy.sudonix.org; as this is used to “map” the request to the actual domain name, which you can see in the root section as root /home/sudonix.org/domains/proxy.sudonix.org/ogproxy;

    As the DNS record you specified matches this hostname, NGINX then knows what to do with the request when it receives it.

  • Hariundefined

    how to use CF tunnels with Virtualmin?

    Solved Configure
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    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

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    Hariundefined

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

  • Hariundefined

    how to configure DNS records virtualmin?

    Solved Linux
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    11 Votes
    26 Posts
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    Hariundefined

    i think we can mark this discussion as solved

    learned how to install virtualmin with NGINX We can easily point the DNS by mentioning server IP at CF a name record learned how to install SSL
  • justoverclockundefined

    VirtualMin create virtual server

    Solved Configure
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    2 Votes
    4 Posts
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    phenomlabundefined

    @justoverclock correct. You only need to keep an eye on the resources of the droplet itself

  • JACundefined

    Email issue (virturalmin)

    Solved Hosting
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    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.

  • Ash3Tundefined

    SASL LOGIN authentication failed: generic failure

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    phenomlabundefined

    @Ash3T I’m going to mark this post as solved as I’ve not heard from you in a while. Let me know if this isn’t the case and you need more help.