Results for “team chat”
- How to run Syncthing on a Linux server as an always-on sync peer …two devices are online at the same time. A Linux server that is always on fixes that: your laptop, desktop and phone each sync with the server whenever they are online, and… Beginner 25 min
- Locked out after a firewall change: how to get back in …firewalls safely. Before you start You need a way in that does not depend on the network rule you broke: Web console: if your service page shows a Web console button (in… Intermediate 10 min
- Docker Compose basics: run multi-container apps on a Linux server …Stops with message if VAR is unset or empty $$ A literal $ that Compose passes through to the container Variables exported in your shell override .env, and --env-file replaces it… Beginner 35 min
- SSH hardening: lock down OpenSSH on Ubuntu and Debian …session open throughout and test every change in a second terminal. Step 1: Write a drop-in configuration OpenSSH uses the first value it reads for each option, and Ubuntu and… Intermediate 20 min
- Fix SSH connection problems: refused, timed out, denied …start ssh. sudo sshd -t prints configuration errors that stop it from starting. If it listens on another port, connect to that port. Ubuntu: SSH is started by ssh.socket.… Beginner 12 min
- Automatic security updates on Linux, Windows and macOS servers …in a maintenance window. Most successful attacks use flaws that were fixed months ago. Automatic security updates close that window without daily work. This guide configures them… Beginner 15 min
- Configure and test IPv6 on your server …use the values of your service. Before you start Check that your service has IPv6. Look at Assigned IPs on the service page and in your welcome email. Dedicated servers in… Intermediate 15 min
- Fix 502 Bad Gateway, 503 and 504 errors on your website …open the error log in cPanel or Plesk instead. Check that the disk is not full (df -h) and memory is available (free -h); both cause these errors. See disk full and high… Intermediate 15 min
- Fix Remote Desktop connection problems on Windows servers …the password without leading or trailing spaces. Remember that the password from the welcome email no longer works if you changed it. Several failed attempts can lock the… Beginner 10 min
- Server unreachable? A step-by-step diagnosis …server, a suspended service, a firewall rule, or a server that has crashed or run out of resources. This guide works from the outside in. Replace 203.0.113.10 with your server's… Beginner 10 min