Security

Ways to Protect yourself from Ransomware Attack

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Ransomware – is a sophisticated piece of malware/virus that blocks the access to his/her files, and the only way to regain access to the files is to pay a ransom. WannaCry – used a vulnerability in Windows that allowed it to infect victims PC’s without them taking any action. Petya Ransomware – Firstly, infecting the […]

Exchange Server

Remove Disconnected/Soft Deleted Mailboxes from Exchange 2010/2013 Database

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When moving mailboxes between Exchange databases the move complete with a warning. This is because Exchange server sometimes does not fully delete the mailboxes from the source database immediately upon completion of the move the source mailbox database is switched to a “soft-deleted” state. To resolve this you need to remove the disconnected or soft deleted […]

Exchange Server

Exchange 2016: A version mismatch error occurred while moving mailboxes

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When migrating mailboxes from Exchange 2013 to Exchange 2016, the following error (A version mismatch) may occur: “A version mismatch was detected (Actual: 6, Expected: 5)”   The following message appears in the Exchange 2013 server log:   2017-04-23T20: 37: 21.432Z, 6, Default, Error, “,,”, “Register migration batch failed, at exception Microsoft.Exchange.Migration.MigrationServiceHelper.SafeInvokeImplMethod (Action method, MigrationServiceRpcMethodCode […]

Active Directory

How to force all users to change their Active Directory password at next logon

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You need to open Active Directory Users and Computers MMC snap-in (DSA.MSC) by selecting Start -> Administrative Tools -> Active Directory Users and Computers, and then locate your desired AD user. Right-click on the account and select Properties. To force the user account to change the password, just tick the “User must change password at next logon” […]