Results for “email marketing”
- How to install Node-RED with Docker and a secured editor Install Node-RED from the official Docker image, protect the editor and HTTP endpoints with hashed passwords, serve it over HTTPS with Caddy, install extra nodes and back up the… Beginner 30 min
- Windows Defender Firewall rules with PowerShell …-State Listen -LocalPort 443. Outgoing mail on port 25 fails although the firewall allows it. Outbound port 25 is closed by default on HyperDC VPS. For… Intermediate 15 min
- Set up a firewall with UFW on Ubuntu and Debian …sudo ss -tulpn. See ports and port forwarding. Outgoing mail on port 25 fails although UFW allows outgoing traffic. Outbound port 25 is closed by default on HyperDC VPS. For… Beginner 15 min
- Build a server firewall with nftables …its own rules. Check systemctl status nftables. Outgoing mail on port 25 fails although the output chain accepts it. Outbound port 25 is closed by default on HyperDC VPS. For… Intermediate 20 min
- Disk full: find what fills it and free space safely …fills up, databases stop writing, websites throw errors, mail queues stall and sometimes you cannot even log in. This guide finds what is using the space and frees it safely,… Beginner 12 min
- Server hacked? What to do, step by step …API keys and tokens stored on the server, such as payment, mail or cloud credentials. Passwords of control panels, FTP and mail accounts. Step 5: Close the hole and watch Fix the… Advanced 30 min
- How to install Strapi 5 with PostgreSQL, PM2 and HTTPS Create a Strapi 5 project on PostgreSQL, run it under PM2 as a dedicated user, publish it through Caddy with HTTPS, and learn the deploy, backup and upgrade routine. Strapi is an… Intermediate 45 min
- Automatic security updates on Linux, Windows and macOS servers …and Debian, or the update history in Windows Update. Mail notifications can be enabled as well. What about software outside the package manager? Applications installed by… Beginner 15 min
- DDoS protection basics: recognise, mitigate, report …Point every public record through the proxy, do not send mail from the same IP and allow web traffic only from the proxy's addresses. Step 3: Report it Open a ticket right away… Intermediate 15 min
- Block brute-force attacks with Fail2ban or CrowdSec …useful for services that still accept passwords, such as mail, FTP or web login pages. Fail2ban or CrowdSec: which should I choose? Fail2ban is small, local and easy to reason… Intermediate 20 min