Port 22

(a)  

Port 23

(a)  

Port 25

(a)  

Port 53

(a)  

Port 67

(a)  

Port 69

(a)  

Port 80

(a)  

Port 110

(a)  

Port 123

(a)  

Port 143

(a)  

Port 443

(a)  

Port 445

(a)  

Port 3389

(a)