Today my manager asked me to check which all ports are opened & which all are closed. Ports which are opened is been used by what. He wants the list i.e. ports- using application name . Do i need to check in each & every server or is it sufficient if i check in Domain server only or if i check in any one of the client computers.
I did run the command netstat -an in one of the client computer. I have attached the image of that. What is this Foreign address (*:*) & [::]:0 . Some local address it shows 0.0.0.0:135 & some other shows 127.0.0.1 . or is there any free tool which can give me all the details.
Note:- I am new to this server world. thats why asking such type of questions
Help Needed urgently.