Learning hashcat

[n0ss]

Hello to all of you,

For the past week I have been able to :

• Learn that The-Distribution-Which-Does-Not-Handle-OpenCL-Well (Kali) is actually rubbish
  
• Install proper CUDA driver in Parrot Security
  
• Verify that "clinfo" and "hashcat -I" correctly use CUDA
  
• Take my hands on aircrack-ng suite to capture multiple 4way-Handshake successfully
  

So, as of today, I do not have any hardware issues, which is great actually.
SETUP : i7 6700k ; 32GB RAM ; 970 GTX STRIX ; SAMSUNG SSD

I have a few general questions about hashcat which do not to seem so obvious reading docs :

1. Can we use i7 4GhZ Intel with OpenCL, how "good" is it ?
   
2. How does it compare to GTX dedicated graphics in general ?
   
3. Should you recommend using both in parallel ?
   

Also, I have some questions about hashcat specifically, since I've read so many things :

1. Regarding 4way-handshake, is it useful to capture the same handshake multiple times in the same capture file ?
   
2. I'm trying to learn about dictionnaries, rules, I've found many things, how could I start simple ?
   
3. What do you recommend, big dicos, smalls rules, ... ?
   
4. How can I gather information about the AP/router ? (manufacturer, version, password generation algorythm, etc)