with a firewall, I see blocked attempts from someone using a UDP protocol... what exactly is that?

Answer 1

You can't really tell much from that. There's only two base protocols in networking: UDP and TCP. A bunch of UDP packets came to your computer and your firewall rejected them.

That's about as meaningful as it gets from your description. Depending on the firewall, and any other packet inspection tools on your computer like a logging router, packet sniffer, IDS, whatever, you can take a better look.

If you aren't a programming or capable of analyzing packets, then you might as well ignore that. I wouldn't fret about "hackers" or the like either.

Answer 2

Here is a link that will give you a full description of "UDP Protocol". Your firewall blocked an attempt from a rogue packet trying to gain access to your pc.

http://www.tech-faq.com/udp.shtml

Don't worry, your firewall is doing a really good job.

Minddoctor, France

Answer 3

A firewall is a dedicated equipment, or software operating on yet another computer, which inspects community site visitors passing with the help of it, and denies or helps passage per a algorithm. A firewall's person-friendly pastime is to regulate different flow of site visitors between computer networks of different have self assurance ranges. common examples are the web it extremely is a zone with out have self assurance and an inner community it extremely is a zone of more advantageous have self assurance. A zone with an intermediate have self assurance element, positioned between the web and a depended on inner community, is often called a "perimeter community" or Demilitarized zone (DMZ). A firewall's function interior a community is such as firewalls with fireplace door in progression structure. In former case, it really is used to stay away from community intrusion to the non-public community. In latter case, it really is meant to contain and put off structural fireplace from spreading to adjoining structures. with out proper configuration, a firewall can typically grow to be worthless. popular safe practices practices dictate a "default-deny" firewall ruleset, in which the in basic terms community connections that are allowed are those that were explicitly allowed. regrettably, the type of configuration calls for specific information of the community applications and endpoints required for the corporate's day by day operation. Many agencies lack such information, and consequently implement a "default-enable" ruleset, in which all site visitors is authorized till this is been specifically blocked. This configuration makes inadvertent community connections and gadget compromise a lot more advantageous in all danger.