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    Understanding how keystores or secrets manager work for softwares running on linux

    Many software platforms on Linux have a "Secrets" manager, like Ansible Vault, Hashicorp Vault Provider, Elasticsearch keystore etc... I'm trying to better understand if they offer the security I think it offers. Here's what I'm trying to understand: Many softwares will let you create a .env...
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    Making CA certificates with `-subj` vs. `openssl-ca.cnf`?

    I tried to ask this question yesterday but still didn't get a reply yet, so will ask here as well. I read through the answers from this question here: https://stackoverflow.com/questions/21297139/how-do-you-sign-a-certificate-signing-request-with-your-certification-authority But my...
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    Creating Practical Examples of SIEM for Linux Systems?

    Hello Everyone I am mostly a web developer and most of my applications are hosted on linux servers. I am looking to improve my knowledge of two things: 1) Improve my knowledge of overall system security 2) Improve my knowledge of a platform called Elasticsearch With regards to Elasticsearch...
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    Suggest useful graphs for a DMARC Visualizer? Will make it free

    Hey Everyone I've been exploring a platform called Elasticsearch+Kibana. And recently, I just became aware of DMARC aggregation reports. As a way to learn more Elasticsearch+Kibana, I figure I make a DMARC Visualizer. Once I finish, I want to share this for free with everyone and make a...
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    Emails queued up and then a long delay before receiving

    I am trying to troubleshoot a situation where it takes several hours to half a day before an email from my customer arrives in my inbox. Let's say my email address is [email protected]. I am using Google Workspace Gmail. My DNS is hosted with GoDaddy and I set up mx records to use Gmail...
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    DMARC shows a lot of source_ips sending emails on my behalf - is that a concern?

    I told a friend who owns a small math tutoring business that I want to learn more about how to improve email deliverability. He said I could use his google workspace to practice my knowledge. Let's say for now his domain is friendbusiness.com The business send emails only from their google...
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    Why don't enterprise versions of linux support docker?

    I'm looking for insight into something I've noticed. I was told that Docker is very popular. So I built some software that uses Docker as the container system and Docker Swarm as the orchestration system. Ive been using Ubuntu Server LTS on x86 architecture machines and everything works great...
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