Bypass Exchange Room Mailbox Delegation for specific Users
You can enable in Exchange delegation for booking requests against room mailboxes as follows. In this case each time a…
pfSense Boot Loop after Power Outage
A few weeks ago I installed pfSense 2.5.2 on a kettop Mi4005L Mini PC. This Mini PC uses an Aptio…
SSH Session Timeout – TCP Keepalive
In case your ssh connection is permanently disconnected in idle state, you can enable TCP-Keepalive either on the ssh server…
Azure Stack Hub, HCI and Edge
In this post I want to summarize some information about the Azure Stack family. This is well documented from Microsoft….
How SAML 2.0 works
SAML 2.0 works similar like OAuth 2.0 with OpenID Connect (OIDC) on top as described in my following post. SAML…
Microsoft SQL Server – FCB::Open failed: Could not open file mastlog.ldf for file number 2. OS error: 5(Access is denied.)
In case you couldn’t start your SQL Server Instance and getting the following error message in your windows application logs,…
PetitPotam NTLM Relay Attack – Mitigating NTLM Relay Attacks on Active Directory Certificate Services (AD CS)
On actual occasion, I want to share some information about the newly uncovered security flaw in Windows operating systems named…
Task Scheduler Task returns 0x1 for Batch File
In case you run a batch script by using a scheduled task in windows and the script itself returns an…
Longest Prefix Match aka Maximum prefix length match
In case a router (or host) wants to forward an IP packet to its destination IP address and this address…
Exchange/Outlook Download Offline Address Book Error 0x80190194
In case you will get during an attempt to download the offline address book from Exchange Server the following error…
