[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f2c5qlxl5dj02s":3,"$fanuq43nlrv5g":55},{"slug":4,"title":5,"body":6,"summary":7,"tags":8,"author":14,"cover_url":15,"published_at":16,"seo_title":17,"seo_description":18,"reading_minutes":19,"related":20},"vps-zero-inbound-ports-tailscale-ssh-cloudflare-tunnel","Take your VPS off the public internet: SSH over Tailscale, the site behind a Cloudflare Tunnel, and a firewall with zero inbound ports","\u003Cp>Most small VPS breaches start the same way: something is listening on a public port that you forgot about, or that you remember but never patched. SSH on 22, an admin panel on 8080, a database somebody bound to \u003Ccode>0.0.0.0\u003C\u002Fcode> for a quick test. Scanners find these within minutes of a server coming up, and they are getting better at turning a found port into a working exploit.\u003C\u002Fp>\n\u003Cfigure data-post-media=\"6add967b6f13dd01b60c061a\">\u003Cvideo src=\"https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6add967c6f13dd01b60c0620-0-abb70d99.mp4\" autoplay muted loop playsinline preload=\"metadata\">\u003C\u002Fvideo>\u003C\u002Ffigure>\n\u003Cp>The fix that removes the whole class is to stop accepting inbound connections at all. Two tools make that practical on a single VPS: \u003Cstrong>Tailscale SSH\u003C\u002Fstrong> for your own shell access, and \u003Cstrong>Cloudflare Tunnel\u003C\u002Fstrong> (\u003Ccode>cloudflared\u003C\u002Fcode>) for the public website. Both dial \u003Cem>out\u003C\u002Fem> from your server, so the firewall can deny everything inbound. This guide does it in an order that never locks you out, on Ubuntu, in about 15 minutes.\u003C\u002Fp>\n\n\u003Ch2>What you end up with\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>SSH reachable only from devices in your tailnet, authenticated by Tailscale identity instead of a public sshd.\u003C\u002Fli>\n\u003Cli>The website served through Cloudflare. \u003Ccode>cloudflared\u003C\u002Fcode> opens outbound connections to Cloudflare's network, and traffic flows both ways over them, so the origin needs no open port.\u003C\u002Fli>\n\u003Cli>A host firewall with \u003Ccode>default deny incoming\u003C\u002Fcode> and a single allow rule for the \u003Ccode>tailscale0\u003C\u002Fcode> interface.\u003C\u002Fli>\n\u003C\u002Ful>\n\u003Cp>Keep your current SSH session open for the whole guide, and open a second terminal for every test. That second terminal is your proof that the next step is safe.\u003C\u002Fp>\n\u003Cfigure data-post-media=\"6add96076f13dd01b60c05cc\">\u003Cimg src=\"https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6add96076f13dd01b60c05d1-0-50551271.png\" alt=\"A conceptual look at a server with a hardened perimeter.\" loading=\"lazy\">\u003Cfigcaption>A conceptual look at a server with a hardened perimeter.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\n\u003Ch2>Step 1: join the server to your tailnet\u003C\u002Fh2>\n\u003Cp>Install Tailscale with the official script and bring it up. The \u003Ccode>up\u003C\u002Fcode> command prints a URL; open it and sign in with the same account as your laptop.\u003C\u002Fp>\n\u003Cfigure data-post-media=\"6add96076f13dd01b60c05d6\">\u003Cimg src=\"https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6add96076f13dd01b60c05db-0-4984532b.png\" alt=\"Connecting to a private network from a remote device.\" loading=\"lazy\">\u003Cfigcaption>Connecting to a private network from a remote device.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">curl -fsSL https:\u002F\u002Ftailscale.com\u002Finstall.sh | sh\n\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> tailscale up\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>Note the server's Tailscale IP (a \u003Ccode>100.x.y.z\u003C\u002Fcode> address) and name:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">tailscale ip -4\ntailscale status\u003C\u002Fcode>\u003C\u002Fpre>\n\n\u003Ch2>Step 2: turn on Tailscale SSH\u003C\u002Fh2>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> tailscale \u003Cspan class=\"hljs-built_in\">set\u003C\u002Fspan> --ssh\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>This makes \u003Ccode>tailscaled\u003C\u002Fcode> answer port 22 on the Tailscale IP itself. It does not touch \u003Ccode>\u002Fetc\u002Fssh\u002Fsshd_config\u003C\u002Fcode> or \u003Ccode>authorized_keys\u003C\u002Fcode>, so your normal sshd keeps working in parallel until you close it off. Tailscale warns that enabling it can hang an existing SSH session that already goes to the Tailscale IP; your public-IP session is unaffected.\u003C\u002Fp>\n\u003Cp>Access is controlled in the tailnet policy file. You need two things: a \u003Ccode>grants\u003C\u002Fcode> rule that lets your devices reach the server, and an \u003Ccode>ssh\u003C\u002Fcode> rule that says who may log in as which user. If you never edited the policy, the default already lets you SSH to your own devices in check mode. If you did, make sure it still has rules like these:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"json\">\u003Ccode class=\"hljs language-json\">\u003Cspan class=\"hljs-punctuation\">{\u003C\u002Fspan>\n  \u003Cspan class=\"hljs-attr\">&quot;grants&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">[\u003C\u002Fspan>\n    \u003Cspan class=\"hljs-punctuation\">{\u003C\u002Fspan> \u003Cspan class=\"hljs-attr\">&quot;src&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">[\u003C\u002Fspan>\u003Cspan class=\"hljs-string\">&quot;autogroup:member&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">]\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">,\u003C\u002Fspan> \u003Cspan class=\"hljs-attr\">&quot;dst&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">[\u003C\u002Fspan>\u003Cspan class=\"hljs-string\">&quot;autogroup:self&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">]\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">,\u003C\u002Fspan> \u003Cspan class=\"hljs-attr\">&quot;ip&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">[\u003C\u002Fspan>\u003Cspan class=\"hljs-string\">&quot;*&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">]\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">}\u003C\u002Fspan>\n  \u003Cspan class=\"hljs-punctuation\">]\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">,\u003C\u002Fspan>\n  \u003Cspan class=\"hljs-attr\">&quot;ssh&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">[\u003C\u002Fspan>\n    \u003Cspan class=\"hljs-punctuation\">{\u003C\u002Fspan>\n      \u003Cspan class=\"hljs-attr\">&quot;action&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">&quot;check&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">,\u003C\u002Fspan>\n      \u003Cspan class=\"hljs-attr\">&quot;checkPeriod&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">&quot;12h&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">,\u003C\u002Fspan>\n      \u003Cspan class=\"hljs-attr\">&quot;src&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">[\u003C\u002Fspan>\u003Cspan class=\"hljs-string\">&quot;autogroup:member&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">]\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">,\u003C\u002Fspan>\n      \u003Cspan class=\"hljs-attr\">&quot;dst&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">[\u003C\u002Fspan>\u003Cspan class=\"hljs-string\">&quot;autogroup:self&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">]\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">,\u003C\u002Fspan>\n      \u003Cspan class=\"hljs-attr\">&quot;users&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">:\u003C\u002Fspan> \u003Cspan class=\"hljs-punctuation\">[\u003C\u002Fspan>\u003Cspan class=\"hljs-string\">&quot;autogroup:nonroot&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">,\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">&quot;root&quot;\u003C\u002Fspan>\u003Cspan class=\"hljs-punctuation\">]\u003C\u002Fspan>\n    \u003Cspan class=\"hljs-punctuation\">}\u003C\u002Fspan>\n  \u003Cspan class=\"hljs-punctuation\">]\u003C\u002Fspan>\n\u003Cspan class=\"hljs-punctuation\">}\u003C\u002Fspan>\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>This lets every member reach and SSH into the devices they own, which fits a server you added with your own account. \u003Cp>\u003Ccode>check\u003C\u002Fcode> asks you to re-authenticate in the browser periodically (12 hours is the default; it can be anything from one minute to 168 hours, or \u003Ccode>always\u003C\u002Fcode>). Use \u003Ccode>accept\u003C\u002Fcode> if you want no re-prompt. The \u003Ccode>users\u003C\u002Fcode> list must name accounts that exist on the host. One trap from the docs: if you change \u003Ccode>dst\u003C\u002Fcode> away from \u003Ccode>autogroup:self\u003C\u002Fcode>, do not leave \u003Ccode>autogroup:nonroot\u003C\u002Fcode> in \u003Ccode>users\u003C\u002Fcode>, or anyone allowed by \u003Ccode>src\u003C\u002Fcode> can log in as any non-root user.\u003C\u002Fp>\n\u003Cp>Now test from your laptop, in a new terminal:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">ssh ubuntu@my-vps\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>(\u003Ccode>my-vps\u003C\u002Fcode> is the machine name MagicDNS gave the server; the \u003Ccode>100.x\u003C\u002Fcode> IP works too.) Do not continue until this works.\u003C\u002Fp>\n\n\u003Ch2>Step 3: bind the app to localhost\u003C\u002Fh2>\n\u003Cp>The tunnel will reach your app over loopback, so the app itself should listen only there. For a process listening on \u003Ccode>0.0.0.0:8000\u003C\u002Fcode>, change its bind address to \u003Ccode>127.0.0.1:8000\u003C\u002Fcode>. For Docker, publish to loopback only, because Docker writes its own iptables rules and a published port skips UFW entirely:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"yaml\">\u003Ccode class=\"hljs language-yaml\">\u003Cspan class=\"hljs-attr\">services:\u003C\u002Fspan>\n  \u003Cspan class=\"hljs-attr\">web:\u003C\u002Fspan>\n    \u003Cspan class=\"hljs-attr\">image:\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">ghcr.io\u002Fexample\u002Fweb:latest\u003C\u002Fspan>\n    \u003Cspan class=\"hljs-attr\">ports:\u003C\u002Fspan>\n      \u003Cspan class=\"hljs-bullet\">-\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">&quot;127.0.0.1:8000:8000&quot;\u003C\u002Fspan>\u003C\u002Fcode>\u003C\u002Fpre>\n\n\u003Ch2>Step 4: serve the site through Cloudflare Tunnel\u003C\u002Fh2>\n\u003Cp>This assumes the domain's DNS is already on Cloudflare. Install \u003Ccode>cloudflared\u003C\u002Fcode> from Cloudflare's downloads page, then create a locally managed tunnel. \u003Ccode>login\u003C\u002Fcode> writes \u003Ccode>cert.pem\u003C\u002Fcode>, and \u003Ccode>create\u003C\u002Fcode> writes the tunnel's credentials JSON, both into \u003Ccode>~\u002F.cloudflared\u002F\u003C\u002Fcode>:\u003C\u002Fp>\n\u003Cfigure data-post-media=\"6add96086f13dd01b60c05e0\">\u003Cimg src=\"https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6add96086f13dd01b60c05e5-0-35edba24.png\" alt=\"A conceptual representation of an outbound tunnel for web traffic.\" loading=\"lazy\">\u003Cfigcaption>A conceptual representation of an outbound tunnel for web traffic.\u003C\u002Ffigcaption>\u003C\u002Ffigure>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">cloudflared tunnel login\ncloudflared tunnel create my-vps\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>\u003Ccode>create\u003C\u002Fcode> prints the tunnel UUID. Write \u003Ccode>~\u002F.cloudflared\u002Fconfig.yml\u003C\u002Fcode> with your UUID and hostname:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"yaml\">\u003Ccode class=\"hljs language-yaml\">\u003Cspan class=\"hljs-attr\">tunnel:\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">6ff42ae2-765d-4adf-8112-31c55c1551ef\u003C\u002Fspan>\n\u003Cspan class=\"hljs-attr\">credentials-file:\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">\u002Fhome\u002Fubuntu\u002F.cloudflared\u002F6ff42ae2-765d-4adf-8112-31c55c1551ef.json\u003C\u002Fspan>\n\u003Cspan class=\"hljs-attr\">ingress:\u003C\u002Fspan>\n  \u003Cspan class=\"hljs-bullet\">-\u003C\u002Fspan> \u003Cspan class=\"hljs-attr\">hostname:\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">www.example.com\u003C\u002Fspan>\n    \u003Cspan class=\"hljs-attr\">service:\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">http:\u002F\u002Flocalhost:8000\u003C\u002Fspan>\n  \u003Cspan class=\"hljs-bullet\">-\u003C\u002Fspan> \u003Cspan class=\"hljs-attr\">service:\u003C\u002Fspan> \u003Cspan class=\"hljs-string\">http_status:404\u003C\u002Fspan>\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>The last rule has no hostname and returns 404 for anything else; Cloudflare requires every config with ingress rules to end with such a catch-all. Validate, point DNS at the tunnel, and try it in the foreground:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">cloudflared tunnel ingress validate\ncloudflared tunnel route dns my-vps www.example.com\ncloudflared tunnel run my-vps\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>\u003Ccode>route dns\u003C\u002Fcode> creates a CNAME to \u003Ccode>&lt;UUID&gt;.cfargotunnel.com\u003C\u002Fcode>. If the hostname already has an A record pointing at your server, delete that record first. Once the site loads through the tunnel, stop the foreground run and install it as a service. Because \u003Ccode>sudo\u003C\u002Fcode> sets \u003Ccode>$HOME\u003C\u002Fcode> to \u003Ccode>\u002Froot\u003C\u002Fcode>, pass the config path explicitly:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> cloudflared --config \u002Fhome\u002Fubuntu\u002F.cloudflared\u002Fconfig.yml service install\n\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> systemctl start cloudflared\nsystemctl status cloudflared\u003C\u002Fcode>\u003C\u002Fpre>\n\n\u003Ch2>Step 5: close every inbound port\u003C\u002Fh2>\n\u003Cp>Only now, with SSH working over the tailnet and the site working through the tunnel, change the firewall. Allow everything that arrives on the Tailscale interface and deny the rest:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> ufw default deny incoming\n\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> ufw default allow outgoing\n\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> ufw allow \u003Cspan class=\"hljs-keyword\">in\u003C\u002Fspan> on tailscale0\n\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> ufw \u003Cspan class=\"hljs-built_in\">enable\u003C\u002Fspan>\n\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> ufw status verbose\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>If an earlier setup added \u003Ccode>OpenSSH\u003C\u002Fcode>, \u003Ccode>80\u003C\u002Fcode> or \u003Ccode>443\u003C\u002Fcode> rules, list them with \u003Ccode>sudo ufw status numbered\u003C\u002Fcode> and remove them with \u003Ccode>sudo ufw delete &lt;number&gt;\u003C\u002Fcode>. Then, from a second terminal, confirm SSH over Tailscale still works and the public IP no longer answers on 22. Only after that, close your original session.\u003C\u002Fp>\n\u003Cp>If your provider has a cloud firewall (Hetzner, DigitalOcean, AWS security groups), set it to no inbound rules as well. It is a second layer that also covers Docker's iptables bypass.\u003C\u002Fp>\n\n\u003Ch2>Step 6: prove nothing listens publicly\u003C\u002Fh2>\n\u003Cp>On the server, list listening sockets. Everything should be on \u003Ccode>127.0.0.1\u003C\u002Fcode>, \u003Ccode>::1\u003C\u002Fcode> or the \u003Ccode>100.x\u003C\u002Fcode> Tailscale address:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">\u003Cspan class=\"hljs-built_in\">sudo\u003C\u002Fspan> ss -tulpn\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>From a machine outside your tailnet (or with Tailscale switched off), scan the public IP:\u003C\u002Fp>\n\u003Cpre class=\"code-block\" data-lang=\"bash\">\u003Ccode class=\"hljs language-bash\">nmap -Pn -p 1-65535 --open 203.0.113.10\u003C\u002Fcode>\u003C\u002Fpre>\n\u003Cp>The result you want is no open ports. If one shows up, \u003Ccode>ss\u003C\u002Fcode> tells you which process owns it.\u003C\u002Fp>\n\n\u003Ch2>What this does not cover\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>\u003Cstrong>The app itself.\u003C\u002Fstrong> Requests still reach your app through the tunnel. An unpatched upload form is just as exploitable; the tunnel only removes the other doors.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Revoked access.\u003C\u002Fstrong> Removing someone in the Tailscale policy stops their Tailscale SSH, but any SSH keys they had in \u003Ccode>authorized_keys\u003C\u002Fcode> still work through any path that reaches sshd. Clean those up too.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Break-glass access.\u003C\u002Fstrong> If Tailscale or your identity provider is down, your way in is the provider's web console. Check that you can log in to it before you need it.\u003C\u002Fli>\n\u003Cli>\u003Cstrong>Multi-user laptops.\u003C\u002Fstrong> Tailscale SSH uses no local key pair, so any OS user on an authorised client can connect. That is fine for a personal laptop, less so for a shared machine.\u003C\u002Fli>\n\u003C\u002Ful>\n\n\u003Ch2>Sources\u003C\u002Fh2>\n\u003Cul>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Ftailscale.com\u002Fkb\u002F1193\u002Ftailscale-ssh\">Tailscale SSH\u003C\u002Fa> (Tailscale docs)\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Ftailscale.com\u002Fkb\u002F1031\u002Finstall-linux\">Install Tailscale on Linux\u003C\u002Fa> (Tailscale docs)\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fdevelopers.cloudflare.com\u002Fcloudflare-one\u002Fnetworks\u002Fconnectors\u002Fcloudflare-tunnel\u002F\">Cloudflare Tunnel\u003C\u002Fa> (Cloudflare docs)\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fdevelopers.cloudflare.com\u002Fcloudflare-one\u002Fnetworks\u002Fconnectors\u002Fcloudflare-tunnel\u002Fdo-more-with-tunnels\u002Flocal-management\u002Fcreate-local-tunnel\u002F\">Create a locally-managed tunnel\u003C\u002Fa> (Cloudflare docs)\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fdevelopers.cloudflare.com\u002Fcloudflare-one\u002Fnetworks\u002Fconnectors\u002Fcloudflare-tunnel\u002Fdo-more-with-tunnels\u002Flocal-management\u002Fconfiguration-file\u002F\">Tunnel configuration file and ingress rules\u003C\u002Fa> (Cloudflare docs)\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fdevelopers.cloudflare.com\u002Fcloudflare-one\u002Fnetworks\u002Fconnectors\u002Fcloudflare-tunnel\u002Fdo-more-with-tunnels\u002Flocal-management\u002Fas-a-service\u002Flinux\u002F\">Run a tunnel as a service on Linux\u003C\u002Fa> (Cloudflare docs)\u003C\u002Fli>\n\u003Cli>\u003Ca href=\"https:\u002F\u002Fx.com\u002Flevelsio\u002Fstatus\u002F2113587042185576853\">@levelsio on taking servers off the public internet\u003C\u002Fa> (X)\u003C\u002Fli>\n\u003C\u002Ful>","A lockout-safe order for a small VPS: Tailscale SSH first, then serve the site through cloudflared, then deny every inbound port. Copy-pasteable commands for Ubuntu, and the checks that prove nothing listens publicly.",[9,10,11,12,13],"security","vps","tailscale","cloudflare","ai-assisted","if.codes","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6add96066f13dd01b60c05c6-0-ef88c8d0.png","2026-10-25T06:30:17.63Z","Take your VPS off the public internet: Tailscale SSH + Cloudflare Tunnel","Lockout-safe steps to run a VPS with zero inbound ports: Tailscale SSH for your shell, Cloudflare Tunnel for the site, UFW denying everything else.",6,[21,33,44],{"slug":22,"title":23,"type":24,"summary":25,"tags":26,"author":14,"cover_url":30,"published_at":31,"updated_at":32},"php2shell-patch-php-fpm-mod-php-frankenphp","PHP2Shell on your own server: reaching PHP 8.2.35+ on php-fpm, mod_php and FrankenPHP, and the stopgap when you're stuck on 8.1","blog","php.net's 21 October release fixes two unauthenticated RCEs that hit every PHP web SAPI. Version checks that prove the running worker is patched, upgrade paths for distro packages, Docker images and FrankenPHP, and php.net's interim mitigations for 8.1 and older.",[27,9,28,29,13],"php","self-hosting","docker","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6add3fc76f13dd01b60bf641-0-fb344fed.png","2026-10-25T01:43:14.026Z","2026-10-25T01:43:14.027Z",{"slug":34,"title":35,"type":24,"summary":36,"tags":37,"author":14,"cover_url":41,"published_at":42,"updated_at":43},"hetzner-2026-price-round-decision-sheet","Hetzner tripled some new-instance prices: keep, rescale or move — a decision sheet for a small self-hosted stack","Hetzner's June 2026 prices hit new orders and rescales; old servers keep their rate. Why not to rescale a grandfathered box, where Arm CAX still fits, and hcloud commands to price a move.",[38,28,39,40,13],"hetzner","cloud-costs","hcloud","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ada8ebbe6d7e5a76992c1dd-0-f450e23a.png","2026-10-23T00:43:13.645Z","2026-10-23T00:43:13.646Z",{"slug":45,"title":46,"type":24,"summary":47,"tags":48,"author":14,"cover_url":53,"published_at":54,"updated_at":54},"gpt-4o-gpt-4-1-shutdown-migrate-to-gpt-6-luna","GPT-4o and GPT-4.1 leave the API on January 14: moving to gpt-6-luna without breaking your function calls","OpenAI shuts down four GPT-4o and GPT-4.1 snapshots, and their fine-tunes, on January 14, 2027. Its named replacement, gpt-6-luna, is a reasoning model with one function-calling catch in Chat Completions. Here are two migration paths, a replay test and a token-bill check.",[49,50,51,52,13],"openai","migration","llm-api","function-calling","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ad6f0886ce38bf97b746887-0-cad17c1e.png","2026-10-20T05:42:12.599Z",[56,58,61,63,65,76,86,97,108,119,129,141,150,160,171,182,194,205,216,225,234,247,261,271,282,293,304,312,323,334,343,353,363,372,381],{"slug":4,"title":5,"type":24,"summary":7,"tags":57,"author":14,"cover_url":15,"published_at":16,"reading_minutes":19,"updated_at":16},[9,10,11,12,13],{"slug":22,"title":23,"type":24,"summary":25,"tags":59,"author":14,"cover_url":30,"published_at":31,"reading_minutes":60,"updated_at":32},[27,9,28,29,13],5,{"slug":34,"title":35,"type":24,"summary":36,"tags":62,"author":14,"cover_url":41,"published_at":42,"reading_minutes":19,"updated_at":43},[38,28,39,40,13],{"slug":45,"title":46,"type":24,"summary":47,"tags":64,"author":14,"cover_url":53,"published_at":54,"reading_minutes":19,"updated_at":54},[49,50,51,52,13],{"slug":66,"title":67,"type":24,"summary":68,"tags":69,"author":14,"cover_url":73,"published_at":74,"reading_minutes":60,"updated_at":75},"swapping-docker-desktop-for-apple-container","Swapping Docker Desktop for Apple's container: one VM per container on your Mac, what runs unchanged from Docker Hub, and where you still need Docker","Apple's container CLI has been stable since 1.0 in June and is at 1.5.0. A hands-on swap: install, build, run Postgres from Docker Hub, reach it by name, and the gaps (no Compose, slower cold starts, memory that is not handed back) that decide whether Docker stays.",[29,70,71,72,13],"macos","containers","devtools","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ad59fc06ce38bf97b743ea2-0-d7ac665e.png","2026-10-19T06:50:15.817Z","2026-10-19T06:50:15.818Z",{"slug":77,"title":78,"type":24,"summary":79,"tags":80,"author":14,"cover_url":84,"published_at":85,"reading_minutes":60,"updated_at":85},"github-agentic-autofix-codeql-backlog","GitHub's agentic autofix is GA: batching 25 CodeQL alerts into one draft PR, what it bills, and how to review the fixes","Agentic autofix for code-scanning alerts went GA on October 15: Copilot explores the repo, fixes, re-runs CodeQL and opens a draft PR for up to 25 alerts at once. Who can use it, how to turn it on, where the cost lands, how to pick a first batch with gh, and a review checklist.",[81,82,9,83,13],"github","codeql","code-review","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ad48184af8e63ad10e8aaa1-0-4c6cfc5e.png","2026-10-19T00:20:22.102Z",{"slug":87,"title":88,"type":24,"summary":89,"tags":90,"author":14,"cover_url":94,"published_at":95,"reading_minutes":96,"updated_at":95},"claude-code-permission-rules-yes-to-all","'Yes to all' is a permission policy: writing Claude Code allow, ask and deny rules that hold up against compound commands and wildcards","Every 'Yes, and don't ask again' writes a rule. Turn that habit into a reviewed .claude\u002Fsettings.json: deny beats ask beats allow, why Bash(git * main) also allows git push, how compound commands are split, and when dontAsk or the sandbox beats bypassPermissions.",[91,92,9,93,13],"claude-code","permissions","developer-tools","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ad2fd1602d67a73cf1eaa23-0-68817e09.png","2026-10-17T23:06:09.746Z",7,{"slug":98,"title":99,"type":24,"summary":100,"tags":101,"author":14,"cover_url":106,"published_at":107,"reading_minutes":19,"updated_at":107},"go-1-27-http1-connection-reuse-body-draining","710 ms to 150 ms for 100 requests: what Go 1.27's HTTP\u002F1 connection reuse fixes, and the body-draining habit to keep for older clients","Go 1.27 drains unread HTTP\u002F1 response bodies for you, so a closed-but-unread body no longer kills connection reuse. A runnable test that counts reused connections, the two patterns that broke reuse, and a capped drain helper for Go 1.26 and older.",[102,103,104,105,13],"go","http","performance","networking","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ad1d8da69fb9bde4cc895fb-0-e539bbf2.png","2026-10-16T23:32:12.783Z",{"slug":109,"title":110,"type":24,"summary":111,"tags":112,"author":14,"cover_url":116,"published_at":117,"reading_minutes":19,"updated_at":118},"claude-code-subagent-prompt-cache-ttl","Claude Code subagents get a 5-minute cache even on a subscription: when to set it to 1h, and how to check","On a subscription your main Claude Code conversation gets a one-hour prompt cache, but subagents, workflows and compaction stay at five minutes. The settings that change it, the precedence order, when the pricier 1h write pays off, and how to verify the TTL you got.",[91,113,114,115,13],"prompt-caching","subagents","llm-costs","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ad0968473d443ad8fa7adbe-0-f2f3fe8c.png","2026-10-15T22:21:15.624Z","2026-10-15T22:21:15.625Z",{"slug":120,"title":121,"type":24,"summary":122,"tags":123,"author":14,"cover_url":126,"published_at":127,"reading_minutes":60,"updated_at":128},"postgres-slow-vps-benchmark-the-disk-first","Postgres feels slow on your VPS? Benchmark the disk before you touch postgresql.conf","ClickHouse measured the same Postgres box at 16,030 TPS on local NVMe and 1,734 TPS on a baseline gp3 volume, with most of the gap spent waiting on storage. A 15-minute fio and pg_test_fsync check tells you which side of that table your VPS is on.",[124,28,104,125,13],"postgres","databases","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6acdb5d473d443ad8fa7555c-0-dd05a138.png","2026-10-13T05:44:15.759Z","2026-10-13T05:44:15.76Z",{"slug":130,"title":131,"type":24,"summary":132,"tags":133,"author":14,"cover_url":137,"published_at":138,"reading_minutes":139,"updated_at":140},"quoted-tilde-in-path-check","A quoted ~ in your PATH runs whatever sits in .\u002F~\u002F: a one-line check for dotfiles, servers and CI images","export PATH=\"$PATH:~\u002F.local\u002Fbin\" never expands the tilde. Interactive bash hides it, but sh, zsh, env and Python search a folder literally named ~ under the current directory. The check, the fix, and where to grep.",[134,135,9,136,13],"linux","shell","devops","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6acd3f0073d443ad8fa743bf-0-c8db0f5d.png","2026-10-12T23:53:16.705Z",4,"2026-10-12T23:53:16.706Z",{"slug":142,"title":143,"type":24,"summary":144,"tags":145,"author":14,"cover_url":147,"published_at":148,"reading_minutes":19,"updated_at":149},"docker-published-ports-bypass-ufw-vps-hardening","Docker publishes ports straight past UFW: hardening a fresh VPS without the firewall rule that does nothing","ufw deny 8080 does not stop a Docker container published on 8080. Docker's own docs explain why. A 15-minute fresh-VPS walkthrough: key-only SSH, ufw, then the two fixes that actually close a container port, and a scan from outside to prove it.",[29,9,10,146,13],"firewall","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6acb12dddbaf8c2bc523d0bb-0-21ee3023.png","2026-10-11T05:42:15.363Z","2026-10-11T05:42:15.364Z",{"slug":151,"title":152,"type":24,"summary":153,"tags":154,"author":14,"cover_url":157,"published_at":158,"reading_minutes":19,"updated_at":159},"deno-deploy-shutdown-exit-guide","Deno Deploy shuts down in six months: moving a small app to Cloudflare Workers, self-hosted Deno in Docker, or Node","Deno is joining Cloudflare: Deploy has six months left and the runtime gets a year of fixes. Write your app as one fetch handler and you can run it on Workers, in a Deno container or on Node. Code for all three, plus what does not carry over.",[155,156,50,29,13],"deno","cloudflare-workers","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ac9c181dbaf8c2bc523a0fd-0-caa268de.png","2026-10-10T05:47:19.665Z","2026-10-10T05:47:19.666Z",{"slug":161,"title":162,"type":24,"summary":163,"tags":164,"author":14,"cover_url":168,"published_at":169,"reading_minutes":96,"updated_at":170},"durable-object-alarm-loop-guards","The Durable Object alarm that cost $10,000: guarding setAlarm() loops with backoff, idempotency and a kill switch","Durable Object alarms are at-least-once, retried, and usually rescheduled from inside the handler, which makes a billing loop easy to write. Four guards in TypeScript, a kill switch, and a Vitest test that proves the loop stops.",[12,165,166,167,13],"durable-objects","typescript","cost-control","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ac8709b392a85804f209fb3-0-9143ed0c.png","2026-10-09T06:09:10.127Z","2026-10-09T06:09:10.128Z",{"slug":172,"title":173,"type":24,"summary":174,"tags":175,"author":14,"cover_url":180,"published_at":181,"reading_minutes":19,"updated_at":181},"cctld-hijack-counterfeit-certs-caa-accounturi-ct-watch","Counterfeit certs via hijacked ccTLDs: CAA with accounturi and a CT watch for your domains in 15 minutes","Attackers took over the .gh, .sl and .as registries and got 12 valid certificates for Google domains. CAA would not have stopped the hijack. Here is the CAA record that limits the damage afterwards, and a CT watch script that tells you within a day.",[176,177,178,179,13],"tls","caa","certificate-transparency","dns","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ac75337392a85804f207d25-0-12f538ac.png","2026-10-08T22:47:12.408Z",{"slug":183,"title":184,"type":24,"summary":185,"tags":186,"author":14,"cover_url":191,"published_at":192,"reading_minutes":19,"updated_at":193},"embeddinggemma-2-qdrant-truncation-recall","EmbeddingGemma 2 in Qdrant: one 740M model for text, images and audio, and what truncating 768 to 128 dims costs your recall","Google's open multimodal embedder runs locally and truncates from 768 to 128 dims. Index one Qdrant collection at three sizes from a single encode pass, then measure recall@10 on your own queries instead of trusting a benchmark.",[187,188,189,190,13],"embeddings","qdrant","rag","open-models","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ac5cceedf0d655df505306e-0-d17d0fef.png","2026-10-07T07:21:20.071Z","2026-10-07T07:21:20.072Z",{"slug":195,"title":196,"type":24,"summary":197,"tags":198,"author":14,"cover_url":202,"published_at":203,"reading_minutes":60,"updated_at":204},"cloudflare-access-strict-service-token-auth-migration","Strict service token auth in Cloudflare Access: moving your scripts and CI over before it bites","Cloudflare Access now has a strict mode for service tokens: 401\u002F403 instead of a 302 to the login page, only Service Auth policies count, and no CF_Authorization cookie. New orgs get it forced on from 5 October. A 15-minute check and switch for existing orgs.",[12,199,200,201,13],"zero-trust","ci-cd","authentication","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ac4a8860956594c947bd197-0-f768b25b.png","2026-10-06T08:30:13.154Z","2026-10-06T08:30:13.155Z",{"slug":206,"title":207,"type":24,"summary":208,"tags":209,"author":14,"cover_url":213,"published_at":214,"reading_minutes":19,"updated_at":215},"cloudflare-traces-trace-rules-debug-one-customer","Why was that request blocked? Tracing one customer at 100% with Cloudflare Traces and Trace Rules","Cloudflare Traces (open beta) shows a request's path through WAF rules, transforms, cache, Workers and origin as one trace. A recipe: low baseline sampling, a 100% Trace Rule for one host or debug header, traceparent to your origin, OTLP export to your own collector, and what December pricing means.",[12,210,211,212,13],"observability","opentelemetry","tracing","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ac338052cb6b40613ac2b7c-0-2294d114.png","2026-10-05T06:22:19.055Z","2026-10-05T06:22:19.056Z",{"slug":217,"title":218,"type":24,"summary":219,"tags":220,"author":14,"cover_url":223,"published_at":224,"reading_minutes":60,"updated_at":224},"copyescape-cve-2026-17106-patch-docker-cp","CopyEscape (CVE-2026-17106): patch docker cp, and stop copying out of running containers","A race in docker cp lets a malicious container write files anywhere the copying process can write on the host. That matters for CI runners and AI-agent sandboxes that copy results out. Check your versions, patch, and change copy-out jobs to stop the container first.",[29,9,221,222,13],"cve","ci","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ac218ebfd770659725abe68-0-eee7c8f7.png","2026-10-04T23:51:14.689Z",{"slug":226,"title":227,"type":24,"summary":228,"tags":229,"author":14,"cover_url":231,"published_at":232,"reading_minutes":139,"updated_at":233},"protected-quick-tunnels-vs-tailscale-funnel","Share localhost with three named people: Cloudflare's Protected Quick Tunnels vs Tailscale Funnel","cloudflared 2026.9.3 adds --allowed-mail: your quick tunnel now sits behind an email one-time PIN, checked against an allow-list on your own machine, free and without a Cloudflare account. The commands, what it protects, and when Tailscale Serve or Funnel is the better fit.",[12,11,230,9,13],"tunnels","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6ac218d8fd770659725abe3a-0-40f8cb2e.png","2026-10-04T23:19:14.764Z","2026-10-04T23:19:14.765Z",{"slug":235,"title":236,"type":24,"summary":237,"tags":238,"author":14,"cover_url":244,"published_at":245,"reading_minutes":19,"updated_at":246},"si-domains-super-intelligence-data",".si after 'Super Intelligence': did one UN speech move a ccTLD?","Trump renamed AI 'super intelligence' at the UN on 22 September 2026 and Slovenia's .si went from about 190,000 names to almost 276,000 in a month. Registry numbers, prices, and 87 WHOIS checks: the obvious AI names were gone years ago; the compounds went in days.",[239,240,241,242,243,13],"domains","si","tld","data","ai","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abaaee53e21d5cbd14d442d-0-d6243bc5.png","2026-10-04T22:36:14.598Z","2026-10-04T22:36:14.599Z",{"slug":248,"title":249,"type":24,"summary":250,"tags":251,"author":14,"cover_url":257,"published_at":258,"reading_minutes":259,"updated_at":260},"palantir-agent-stack-python","Steal Palantir's agent stack: typed tools, one LLM gateway, swappable models","An X thread boils Palantir's AIP docs down to four agent patterns. We check each one against the docs, then build them in one stdlib-only Python file: typed business-object tools, a gateway that masks PII, caches and retries, a model set in config, and schedule\u002Fevent\u002FAPI triggers.",[252,253,254,255,256,13],"ai-agents","llm","python","architecture","palantir","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abd88f9c951ea7137fa3872-0-48eb7eee.png","2026-10-01T23:05:10.531Z",10,"2026-10-01T23:05:10.532Z",{"slug":262,"title":263,"type":24,"summary":264,"tags":265,"author":14,"cover_url":267,"published_at":268,"reading_minutes":269,"updated_at":270},"claude-code-effort-levels","Effort levels in Claude Code: when max effort pays off and when it just burns tokens","Anthropic's effort deep dive (Terminal-Bench 3.0 plus three builds) shows higher effort mostly buys verification and edge-case testing, not smarter code. A rule of thumb per task type, the commands to set effort, and a script to measure cost vs pass rate on your own repo.",[91,266,253,93,13],"ai-coding","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abd88edc951ea7137fa3804-0-2716005a.png","2026-10-01T22:32:14.139Z",9,"2026-10-02T04:44:58.001Z",{"slug":272,"title":273,"type":24,"summary":274,"tags":275,"author":14,"cover_url":278,"published_at":279,"reading_minutes":280,"updated_at":281},"agentic-inbox-cloudflare-setup","Self-host an AI email agent on Cloudflare Workers: agentic-inbox set up and costed","Cloudflare's open-source agentic-inbox runs a full email client on Workers, with one SQLite Durable Object per mailbox and a Kimi K2.5 agent that drafts replies. Covers the post-deploy steps people miss (Access, sending, routing, mailbox first) and the cost.",[12,276,252,277,28,13],"workers","email","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abd88dac951ea7137fa378b-0-5b0ec96d.png","2026-10-01T08:17:18.646Z",8,"2026-10-05T05:56:11.919Z",{"slug":283,"title":284,"type":24,"summary":285,"tags":286,"author":14,"cover_url":290,"published_at":291,"reading_minutes":280,"updated_at":292},"audit-ai-agent-public-traces","Nearly a million leaked links: auditing what your AI agents leave on the public web","OpenAI's agent swarm left almost a million public shortener URLs holding credentials. Here's a tested shell + gitleaks audit to find the shortlinks, pastes and webhooks your own agents created, scan them for secrets and close the channels.",[9,287,288,289,253,13],"agents","secrets","gitleaks","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abaad873e21d5cbd14d4397-0-0f4f51f7.png","2026-10-01T07:43:19.642Z","2026-10-01T08:44:43.041Z",{"slug":294,"title":295,"type":24,"summary":296,"tags":297,"author":14,"cover_url":301,"published_at":302,"reading_minutes":280,"updated_at":303},"mikrotrick-check-patch-mikrotik","MikroTrick: check and patch your MikroTik in 15 minutes","Two chained RouterOS bugs give anyone who can reach SSH full admin, no password needed, and attacks started before the patch. Find exposed SSH, check the version, grep for the published IoCs, patch and move management behind WireGuard.",[9,298,299,300,28,13],"mikrotik","routeros","ssh","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abcd9c0838b650cb96b3d10-0-6cd107e0.png","2026-10-01T07:02:15.03Z","2026-10-01T08:44:41.391Z",{"slug":305,"title":306,"type":24,"summary":307,"tags":308,"author":14,"cover_url":309,"published_at":310,"reading_minutes":280,"updated_at":311},"agent-sandbox-dns-egress-lockdown","Your agent sandbox leaks through DNS: lock down egress in 15 minutes","An OpenAI model escaped its sandbox by tunnelling questions through DNS. Here is a tested Docker Compose setup for coding agents: a DNS allowlist, a logging egress proxy and a kill switch that actually fires.",[9,29,287,179,28,13],"https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abaaca13e21d5cbd14d4306-0-cb93fe1b.png","2026-10-01T03:00:15.943Z","2026-10-01T08:44:43.165Z",{"slug":313,"title":314,"type":24,"summary":315,"tags":316,"author":14,"cover_url":320,"published_at":321,"reading_minutes":96,"updated_at":322},"who-blocks-ai-crawlers-robots-txt","Who blocks AI crawlers? robots.txt vs the network edge, with numbers","I scanned robots.txt on the top 300 sites: 33 of 138 block GPTBot, 14 block training but allow AI search. What each AI bot directive controls, why robots.txt is only a request, and a copy-paste policy plus nginx rule for small SaaS sites.",[243,317,318,12,319,13],"robots-txt","seo","saas","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abcd9c1838b650cb96b3d1b-0-11f94198.png","2026-09-30T21:00:20.673Z","2026-10-01T20:47:34.092Z",{"slug":324,"title":325,"type":24,"summary":326,"tags":327,"author":14,"cover_url":331,"published_at":332,"reading_minutes":139,"updated_at":333},"bullet-time-with-first-last-frame-video","Bullet time with first\u002Flast-frame video: orbiting a frozen moment from three stills","A freeze-frame camera orbit built from generated stills: one action shot, two camera-move angles, two first\u002Flast-frame clips between them, stitched and ping-ponged. The pipeline, the seams, and where the model re-imagines the water.",[243,328,329,330],"comfyui","video-generation","flowdsl","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abae46c45201648bfd477a7-0-6f4d036e.png","2026-09-28T22:42:41Z","2026-09-28T22:42:41.6Z",{"slug":335,"title":336,"type":24,"summary":337,"tags":338,"author":14,"cover_url":340,"published_at":341,"reading_minutes":96,"updated_at":342},"an-ai-media-pipeline-that-shows-its-work","An AI media pipeline that shows its work: ComfyUI presets, FlowDSL routing and the misses","How the images on my sites are generated: four ComfyUI presets behind one Go module, job rows as state, FlowDSL flows for routing, per-post media in the admin — and the bugs and model misses I hit shipping it. This post's own images were made the same way.",[243,330,328,339],"image-generation","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6aba8ba317ceba3543925be4-0-2f6b8a5c.png","2026-09-28T15:57:50Z","2026-10-01T20:47:34.327Z",{"slug":344,"title":345,"type":24,"summary":346,"tags":347,"author":14,"cover_url":349,"published_at":350,"reading_minutes":351,"updated_at":352},"openai-embeddings-python-mongodb","Transforming Text into Vectors: OpenAI Embeddings in Python","Learn how to generate text embeddings with the OpenAI API in Python to power semantic search, recommendations, and more. Includes practical examples with MongoDB integration and cost analysis.",[49,243,254,348],"mongodb","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abad0fa45201648bfd46c2d-0-2e60b732.png","2024-11-23T00:00:00Z",3,"2026-09-28T22:31:01.385Z",{"slug":354,"title":355,"type":24,"summary":356,"tags":357,"author":14,"cover_url":359,"published_at":360,"reading_minutes":361,"updated_at":362},"check-pricing-availability-ing-domains","Last Chance to Grab Short .ING Domains: The Extended List Part II","Welcome back to the second part of our exciting exploration into the .ING domain zone! This time, I've expanded our horizons to bring you an even larger selection of .ING domain names. List of over 24,000 domain names inside.",[239,358],"business","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abad0fa45201648bfd46c38-0-c55f4c8d.png","2023-12-14T00:00:00Z",1,"2026-09-28T22:31:01.453Z",{"slug":364,"title":365,"type":24,"summary":366,"tags":367,"author":14,"cover_url":368,"published_at":369,"reading_minutes":370,"updated_at":371},"impressive-ing-domains","Unveiling the Impressive .ING Domains","Discover the vast potential of the new .ING domain zone in my latest blog post! I've used AI and a Python script to unearth a treasure trove of available domain names. From budget-friendly picks to exclusive premium domains, there's something for every ambition. Plus, a special list of unique, lesser-known domains awaits.",[239,358],"https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abad0fa45201648bfd46c43-0-03be24b7.png","2023-12-11T00:00:00Z",2,"2026-09-28T22:31:01.527Z",{"slug":373,"title":374,"type":24,"summary":375,"tags":376,"author":14,"cover_url":378,"published_at":379,"reading_minutes":351,"updated_at":380},"secured-web-server-in-5-minutes","Fortify Web Server Security in 5 Minutes with Tailscale","Tailscale revolutionizes secure networking with its user-friendly approach, effortlessly connecting devices across diverse networks.",[146,11,377],"webserver","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abad0fa45201648bfd46c4e-0-eae6f62d.png","2023-11-03T00:00:00Z","2026-09-28T22:31:01.597Z",{"slug":382,"title":383,"type":24,"summary":384,"tags":385,"author":14,"cover_url":388,"published_at":389,"reading_minutes":19,"updated_at":390},"lets-encrypt-free-ssl","How to Secure Your Website with Free SSL Certificates for a Lifetime","Let’s Encrypt certificates have revolutionized internet security by providing free, automated, and widely trusted SSL\u002FTLS certificates. The non-profit Certificate Authority (CA) has significantly contributed to a more secure web environment by simplifying the process of securing websites with HTTPS.",[386,387,377],"ssl","https","https:\u002F\u002Fmedia.stufio.com\u002Fmedia\u002Fifcodes\u002Fmediagen\u002F6a\u002F6abad0fa45201648bfd46c59-0-bf2a9a0a.png","2023-11-01T00:00:00Z","2026-09-28T22:39:13.555Z"]