Lukas BeranMeltdown security issue (CVE-2017-5754) applies to all Intel processors since 1995, except for older Intel Atom processors and...
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Meltdown and Specter security issues in processors
Meltdown security issue (CVE-2017-5754) applies to all Intel processors since 1995, except for older Intel Atom processors and Itanium processors. This processor error causes ability to read privileged memory, which is a very significant security risk. Second security issue Specter (CVE-2017-5753 and CVE-2017-5715) applies to all Intel, [...]
Lukas Beran DMARC validation in Office 365
DMARC is together with SPF and DKIM another technology protecting you against phishing and spoofing. Implementing DMARC with SPF and DKIM provides additional layer of protection. This validation uses DNS records where are specified mail servers authorized for sending emails from your domain. Differences between SPF and DMARC The [...]
Lukas Beran How to allow Hyper-V live migrations
Live migrations allow to migrate running virtual servers from one Hyper-V host to another. Live migrations are not load balancing nor failover clustering, it’s just moving a VM from one host to another requested by admin for example when you buy another host and you want to distribute the load. How to allow Hyper-V live migrations [...]
Lukas Beran How to setup multifactor authentication in Office 365
Multifactor authentication (MFA) in Office 365 is an option how to dramatically improve security of the Office 365 tenant and therefore all users and data. Thanks to multifactor authentication in Office 365 it is not enough to only know user’s password, but each and every login attempt has to be verified via user’s phone [...]
Lukas Beran How to set modern authentication in Office 365
If you want to use multi-factor authentication (MFA) in Office 365, you need to prepare your tenant first. If you want to use the comfort of signing in using your login and password with no need for application passwords in Outlook and other Office applications, you need modern authentication method in Office 365. You can read more about [...]
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