Hashcat vast.ai and hashcat.

[StillBlue]

Due to having yet again hardware issues, I was considering enlisting vast.ai services during my downtime.

I have used vast.ai a while ago for something else, and there were some cheap services to be had. I was wondering if anybody else here uses it for Hashcat and if so what docker images they may use and any advice.

Also I have a half way done recovery sitting on my laptop at the moment and guess I can just move the .restore file across to a cloud based machine and continue from where mine left off?

Any advice/knowledge around this would be gratefully received.

 

[StillBlue]

Actually, I think I am sorted. It's a bit of an eye opener using some of the servers available compared to my own hardware.

 

[Cyclone]

Glad you got it sorted out.
To answer your original question, here's the basic settings to get you started:

• vast.ai setup for hashcat:
  • Docker image
    • nvidia/cuda
  • Launch Mode
    • Run interactive shell server, SSH
  • On-start script
    • none (customize to fit your needs)
  • Disk space to allocate
    • 10gb+ (customize to fit your needs)
  • FYI
    • higher TFLOPS = faster GPU performance
    • scripting your setup will save you time and money since you're paying $$ / hour
      • ex: create a script to prep the system (download hashcat, wordlist, etc...)

 

[StillBlue]

Thank you. Yes, managed to get myself worked out mostly.

I watering a couple of my test runs earlier. Finished before I had drank my tea.

 

[StillBlue]

Actually, for anyone else thinking of doing this, the one thing I would say, is I did try anything I wasn't sure of on the cheapest server first, and then if it looked like it was working properly, I swapped over to a fast one. In my head this cost me less to experiment with some of the docker images, which I found some better than others.

 

[rsj123]

An addition on cyclone's reply.
I suggest u to use the tag including everything of cuda imagine or u might get in some errors.

 

[Alcanjp]

Hello

I am unable to upload a file to an instance on VAST.ai
scp -P 19691 /home/coper/Documents/My_File.001 root@ssh5.vast.ai:/home
ssh: connect to host ssh5.vast.ai port 19691: Connection refused

Is this issue from the public key?

 

[Cyclone]

Sounds like your public key may be the issue.

From your linux box, copy your id_rsa.pub

cat ~/.ssh/id_rsa.pub

then paste that into "Change SSH Key" on vast.ai / console / account.

Your key will start with "ssh-rsa" and end with "user@hostname".

example:

ssh-rsa AAAAB3Nza...blah...blah...blah...blah...blah...blah...blah...blah...blah...blah... user@hostname

 

[Alcanjp]

Sounds like your public key may be the issue.

From your linux box, copy your id_rsa.pub

cat ~/.ssh/id_rsa.pub

then paste that into "Change SSH Key" on vast.ai / console / account.

Your key will start with "ssh-rsa" and end with "user@hostname".

example:

ssh-rsa AAAAB3Nza...blah...blah...blah...blah...blah...blah...blah...blah...blah...blah... user@hostname

I actually got stupid. I managed to get it working. How ever is vast.ai the cheapest?

 

[cablecable]

For those who are still wondering, use the docker "dizcza/docker-hashcat/" much easier setup, everything preinstalled.

 

[Alcanjp]

I used bnzm5270/hashcat