A yearly scan of exposed ports has revealed that there are nearly 10 million devices with open Telnet ports connected to the Internet as we speak, opening themselves to brute-force attacks from IoT ...

Mirai took advantage of insecure IoT devices in a simple but clever way. It scanned big blocks of the internet for open Telnet ports, then attempted to log in default passwords. In this way, it was ...

I once new a way of checking for an open relay by telneting into port 25 on the smtp server. I have since forgotten. Can anyone reffresh my memory as I dont want to leave my mail server open to ...

Bad actor obtained passwords for servers, home routers, and smart devices by scanning internet for devices open to the Telnet port. A hacker has published a list of credentials for more than 515,000 ...

Port forwarding settings allow your router to "pass through" telnet traffic. Without port forwarding configurations, the router blocks telnet sessions to the hosted telnet server. Each router has its ...

I've acquired a Synaccess Netcommander, model NPC-22. It seems to have some sort of dynamic port blocking going on, that prevents me connecting to its telnet daemon. It works for a while but then ...