Tuesday, November 19, 2019
Adding Full Mailbox permissions to on prem shared mailboxes for O365 Migrated user in Hybrid environment
Tuesday, January 8, 2019
- Copy new certificate to first Web Apps Server C:\temp drive
- Log onto first Web Apps Server via RDP
- Open MMC console and add certificates snap-in, on the certificates Local computer | Personal | Certificates, delete expired certificate and import new one.
- Take a note of certificate name (Issued to)
- Close MMC.
- Open following directory (\ProgramData\Microsoft\OfficeWebApps\Data\FarmState\settings.xml)
- Open Setting.xm file with notepad
- Locate following line and make sure Certificate name matches the imported certificate name.
- Close XML file
- Restart Office Web Apps Service (Service name: WACSM)
Wednesday, December 26, 2018
The common cause of Lync FE servers service to hang is related to non self-assigned certificates found on the Trusted Root Certificate store. Lync servers does use HTTP/s to communicate each other and the issue mentioned will break this behavior. Until such certs removed, FE service wont come back to its health state.
Step # 1
Identify the certs causing this issue, run below PS from problem Lync FE Server.
Step # 2
Delete the problem certificates from Trusted root store, it is easy to identify these certificates as
"Issued From" and "Issues To" wont match. Check to make sure these certs are not getting pushed via GPO if so, you will need to make sure such GPO is cleared out.
Step # 3
Reboot FE server and make sure FE service comes up. Check event logs to make sure related event logs are cleared.
Tuesday, July 17, 2018
After installing Windows security updates KB4338823 and KB4338818, Transport service on Exchange 2010 Sp3 servers will stop processing mail. When this article is written MS has confirm this as an issue (bug) and confirmed the patch is on its way. Both updates seem to be causing issues with TCP/IP stack which then affects Exchange application, transport issues.
As of now you should uninstall both updates and wait for MS to come up with another KB which KB4338823 and KB4338818 broke at the first time.
Oz Casey, Dedeal
Principal Systems Engineer