What are the ISP providers filtering?
Many public wifi only allow 80, 443,53, and some secure mail ports/protocols as outgoing ports.(eg blocking port 25 and all high ports >1024).
What is your local ISP filtering , as incoming ports?
Try to access with e.g. Telnet, with software like "Putty" that allows to select a port for interactive connection.
security: "shodan.io" will catalog and reveal your open ports to anyone who asks (including hackers).
Many public wifi only allow 80, 443,53, and some secure mail ports/protocols as outgoing ports.(eg blocking port 25 and all high ports >1024).
What is your local ISP filtering , as incoming ports?
Try to access with e.g. Telnet, with software like "Putty" that allows to select a port for interactive connection.
security: "shodan.io" will catalog and reveal your open ports to anyone who asks (including hackers).
Statistics: Posted by bpwl — Tue Jan 16, 2024 11:49 pm