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Check for valid SSL Cert on an SSL/TLS Email Server

Method 1 - openssl #!/bin/bash SERVERNAME=mail.example.com printf 'quit\n' | openssl s_client -connect $SERVERNAME:25 -starttls smtp | openssl x509 -enddate -noout Method 2 - Google Chrome Run Google Chrome and bypass the ERR_UNSAFE_PORT error by specifying the...

Azure VPN Gateway P2S For Windows and Mac

In the Virtual Network Gateway configuration enable "IKEv2 and SSTP" as the Point-to-site configuration Tunnel Type To use EasyRSA certs on Windows. Assuming you have already initialized your EasyRSA ca.crt then you need to create a client cert ./easy-rsa...

Mobile area code – sort of

Just had to enter my mobile number into a Microsoft Certification Website that has an old style phone entry field with a "required" area code. So it prompted the question. Do mobile phones have an area code if so what is it? Sort of...

EasyRSA for IKEv2 VPN on Azure

Just getting my mac to connect to an Azure IKEv2 VPN P2S connection using certs generated by EasyRSA Assuming you have already init'd and created your ca.crt using EasyRSA. See my previous post regarding this. Format the ca.crt to copy into the the Root Certificate...