Most of the time, I’m searching for new products and software which makes life easier but has no lack of security. One of this product (in my personal opinion) is YubiKey from Yubico. In this article I’m describing some basic settings and also some use cases for additional authentication with the YubiKey. First we need …
Read more “Multifactor Auth like a boss using YubiKey Part 1”
In september 2021 another big announcement was published by Microsoft. Azure AD Connect Version 1x is retired and will not work anymore in August 2022. So please update your Azure AD Connect Version! On August 31 2022 all old versions of Azure AD Connect Ver. 1.x won’t work. Resulting this announcement there are some consequences. …
Today a new exchange update KB5008631 for all supported versions of exchange was released. See the original link to Exchange Team blog:https://techcommunity.microsoft.com/t5/exchange-team-blog/released-january-2022-exchange-server-security-updates/ba-p/3050699 Here are the links to download manually: Exchange Server 2013 CU23 Exchange Server 2016 CU21 and CU22 Exchange Server 2019 CU10 and CU11 They say there are some vulnerabilities but no exploit, so there is not that much pressure to …
Read more “New Exchange Security Update January 2022 KB5008631”
Some days ago Microsoft announced the final ending of basic authentication in Exchange Online. Today, we are announcing that, effective October 1, 2022, we will begin to permanently disable Basic Auth in all tenants, regardless of usage, with the exception of SMTP Auth. https://techcommunity.microsoft.com/t5/exchange-team-blog/basic-authentication-and-exchange-online-september-2021-update/ba-p/2772210 So why disabling Basic Auth? It works like a charm! Basic …
Read more “Exchange Online and disabling Basic Authentication by Microsoft”
After some years (8 years more precisely) the moment arrived that Blog IT koehler renewed its coporate logo on turn of year 2022. This change has been in mind about some time and was implemented these days. Because I’m not a great talent in designing, I told a friend of mine to create a new …
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