Bulk Senders Guidelines

We’ve received inquiries from bulk senders who’d like more information on best practices to ensure that their mail is delivered to Gmail users. The way Gmail classifies spam depends heavily on reports from our users. Gmail users can mark and unmark any message as spam, at any time. To increase the inbox delivery rate of …

Change the default SSH port

The Secure Shell (SSH) Protocol by default uses port 22. Accepting this value does not make your system insecure, nor will changing the port provide a significant variance in security. However, changing the default SSH port will stop many automated attacks and a bit harder to guess which port SSH is accessible from. In other …