Retrieve an SSL Certificate from a Server With OpenSSL

I was setting up VMware vRealize Automation’s Active Directory connections the other day and I needed the public SSL certificate for the AD DCs to authenticate correctly. You can use OpenSSL to get that information. I used a Linux shell but this should be do-able from a Mac or with OpenSSL installed on Windows, too. If you wanted to read the SSL certificates off this blog you could issue the following command, all on one line: openssl s_client -showcerts -servername lonesysadmin.net -connect lonesysadmin.net:443 < /dev/null In this case you’ll get a whole bunch of stuff back: CONNECTED(00000003)depth=2 O = Digital Signature Trust Co., CN = DST Root CA X3verify return:1depth=1 C = US, O = Let’s Encrypt, CN = Let’s …

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You Cannot Use open-vm-tools to Customize VMs

Homer Simpson: Kids: there’s three ways to do things; the right way, the wrong way and the Max Power way! Bart: Isn’t that the wrong way? Homer Simpson: Yeah, but faster! My biggest pet peeve with open source is that projects¬†don’t ever solve whole problems. They get 60% of the way to solving a whole problem and then run off to chase¬†another squirrel. The most recent example of this is VMware’s recommendation to use the open-vm-tools packages that ship with modern distributions of Linux. Dumbest recommendation ever. Why? Because the project got to 60% of the solution and stopped, effectively solving no problems for anybody. From what appears to be a VMware employee on the open-vm-tools mailing list archives: > …

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