A DNS server – short for Domain Name System server – helps your web browser connect to the internet and load websites ...

Is there a mechanism in place to authenticate an SMTP server as an authorized or legitimate sender of e-mail for a domain? Two mechanisms used to check if a mail-sending machine is legitimate for a ...

Using a simple Excel formula and some creative page previewing teamed up with the Link Counter add-on for Firefox can help check header response, server status codes on a list of URLs in no time.

When you are operating a business, you may want to restrict what websites your employees can visit to prevent them from being distracted while at work. You can do this by blocking access to these ...

Silent Push uncovered 45 domains used by Chinese APT groups for long-term cyber-espionage Domains were registered with fake identities and linked to low-density IPs for stealthy C2 operations ...