Like many Linux distributions, Windows, and macOS, Ubuntu has a firewall. This security feature can prevent connections from unwanted sources on your system. Sometimes, though, you might want to ...

During Redhat 9's install, i specifically said to disable the firewall. Now, i installed lmule and it tells me that it can't reach port 4662. How can i find out if the firewall is turned on or off? I ...

Security experts are advising that a networking feature known as Universal Plug and Play be disabled on routers, printers, and cameras, after finding it makes tens of millions of Internet-connected ...