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  • What is lazytime mount option in Linux?

    November 13, 2025
  • Teach me how to setup nfs to export /mnt/backup to my private local network

    November 13, 2025
  • Explain how is allowence limit for cpu in cgroups for Linux

    November 4, 2025
  • Compare incus and libvirt for virtualization

    Here’s a detailed comparison of **Incus** and **libvirt**, focusing on their architecture, use cases, feature sets, and management models.

    October 27, 2025
  • What are the technical requirements for storing personal data as a company in European Union?

    The EU does not give a single, prescriptive “tech checklist.” Under the GDPR you must implement appropriate technical and organizational measures proportional to the risks to people. Below is a practical, controller/processor-ready set of requirements and controls mapped to GDPR expectations. This is general guidance, not legal advice.

    October 24, 2025
  • Public-key algorithms used in ssh

    SSH uses public-key cryptography to authenticate clients and servers, and the key type determines how keys are generated, stored, and signed. The main types in use today are: – Ed25519 (ssh-ed25519): fast, small keys; widely recommended for new keys. – Ed448 (ssh-ed448): higher security margin; less common. – ECDSA (ecdsa-sha2-nistp256 / 384 / 521): on…

    October 18, 2025
  • Ready-to-use evidence checklist tailored for SAQ‑A to attach with submission?

    Having a ready‑to‑use evidence checklist will make your SAQ‑A submission clean and defensible if your acquirer or payment processor asks for supporting materials. Below is a practical, SAQ‑A‑specific evidence checklist, tailored for merchants who fully outsource payment processing (e.g., redirect or hosted payment page). ✅ SAQ‑A Evidence Checklist 1. Scope & Environment Documentation Evidence Type…

    October 8, 2025
  • What are the most common SAQ‑A mistakes newcomers make, and how can I avoid them in my submission?

    This is where many first‑time PCI DSS filers stumble. Even though SAQ‑A looks simple (just a few pages), it’s still a legal attestation of compliance, and a small mistake can cause delays, compliance holds, or even liability issues. Here’s a breakdown of the most common SAQ‑A mistakes beginners make — and, more importantly, how to…

    October 8, 2025
  • How can I prepare Self‑Assessment Questionnaire (SAQ‑A)?

    October 8, 2025
  • Do ecommerce websites that integrate card payment require PCI-DSS certification?

    October 8, 2025
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HTTP Expert

Your friend when you have 5xx http errors