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Fun with VMware on a 64 GB Mac

I’m having a lot of fun with VMware on this 64 GB Mac: My main OS, obviously, is macOS running work-related stuff.Then, I have Ubuntu Linux for development.I have Kali Linux for doing security work.I have Windows 10 for practicing exploit development.And, finally, I have macOS running in a VM for my personal stuff.I could probably get Android and iOS ...

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Compute MD5 Checksum Hash on Windows and Linux

Use the following commands to print out the MD5 hash for a file. On Windows: 1 2 3 4 > CertUtil -hashfile myfile.txt MD5 MD5 hash of file myfile.txt: 76383c2c0bfca944b57a63830c163ad2 CertUtil: -hashfile command completed successfully. On Linux/Unix: 1 2 $ md5sum.exe myfile.txt 76383c2c0bfca944b57a63830c163ad2 *myfile.txt Published on System Code Geeks with permission by Fahd Shariff, partner at our SCG program. See ...

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Docker | Windows 10/ Mac OS | unauthorized: incorrect username or password when trying to pull images

It happens because the docker client (on macOS or Windos 10) allows you to sign in with your email address and password. If you sign out and sign in with your Docker Username and password everything will work. So here’s a better description of the issue Description When trying to pull images from the Docker registry docker: Error response from daemon: ...

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Running Ansible on a Windows System

On my last conference talk (it was about Ansible and Docker at DevOpsCon in Berlin), I was asked what is the best way to run Ansible on a Windows system. Ansible itself requires a Linux-based system as the control machine. When I have to develop on a Windows machine, I install a Linux-based virtual machine to run the Ansible’s playbooks ...

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Managing Windows Services from CLI

In this short guide, I’ll be reviewing the necessary information for how to manage services from the command line on Windows workstations and servers. It should also go without saying that “services” are an integral part of pretty much all computer systems. You should also be aware that “services” are sometimes referred to as daemons (pronounced “demons”), especially in various ...

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