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Disable parts of Outlook Autodiscover and Speed it up!

Posted by paris on Oct 20, 2017 in Research

It is possible to disable certain autodiscover steps by creating DWORD entries in the HKEY_CURRENT_USER\Software\Microsoft\Office\<version>\Outlook\AutoDiscover registry key.

Note. <version> can be 16.0 for Outlook 2016, 15.0 for Outlook 2013 and 14.0 for Outlook 2010.

The following DWORD entries can be created:

  • ExcludeHttpRedirect
  • ExcludeHttpsAutoDiscoverDomain
  • ExcludeHttpsRootDomain
  • ExcludeScpLookup
  • ExcludeSrvRecord
  • ExcludeLastKnownGoodURL (Outlook 2010 version 14.0.7140.5001 and later)
  • ExcludeExplicitO365Endpoint (Outlook 2016 version 16.0.6741.2017 and later)

Add the DWord of 1 to any of the above to skip the check

Per here https://support.microsoft.com/nl-nl/help/2212902/unexpected-autodiscover-behavior-when-you-have-registry-settings-under

 

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ATO ( Australian Tax Office ) Enables DKIM verification for received emails

Posted by paris on Oct 20, 2017 in Fixes

An email from this sender could not be delivered to your mailbox as it has failed DKIM verification. To comply with government security standards the ATO cannot accept emails that fail DKIM integrity checks because the email cannot be verified as genuine.

Currently there is an issue causing emails from organisations using Office 365 to fail DKIM verification.

Office 365 has implemented its own DKIM features and customers must ensure that outbound DKIM is correctly configured for their domain (DNS) and namespace (Office 356 Administration).

 

Resolution

How to enable DKIM on 365

You will need to enable DKIM outbound DNS Verification on either 365 

selector1._domainkey.domain.com
selector2._domainkey.domain.com

These need to point to 

selector1-domain-com._domainkey.onmicrosoftalias.onmicrosoft.com
selector2-domain-com._domainkey.onmicrosoftalias.onmicrosoft.com

Your onmicrosoftalias is the domain GUID and can be retrieved from the MX record for your domain

You then need to enable

View Powershell :  

New-DkimSigningConfig –DomainName domain.com –Enabled $true

Or through GUI : 

 

If you send out via another provider e.g. a spam filter you will need to check the method on the spam filter of enabling this

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How to add Secondary Office 365 or Exchange Account in Mac Mail / Thunderbird

Posted by paris on Oct 19, 2017 in Notes

Can be done via IMAP Settings below

 

Settings for IMAP Configuration:

  EMAIL ADDRESS: sharedmailbox@domain.com (shared mailbox)

  IMAP SERVER: outlook.office365.com Port 993 with SSL
  SMTP SERVER: smtp.office365.com Port 587 with TLS

  USERNAME: user@domain.com\sharedmailboxalias  (user\shared mailbox alias)
  PASSWORD: UserPassword (user’s password)

SMTP LOGIN IS DIFFERENT (!)

  USERNAME: user@domain.com (users email)
  PASSWORD: UserPassword (user’s password)

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VMware vSphere Web Client Shockwave Flash has Crashed – Chrome

Posted by paris on Oct 18, 2017 in Fixes

Google Chrome 61.0.3263 and 62.0.3202.62 are affected, since it also uses Adobe Shockwave Flash version 27.0.0.170

Adobe has released a Beta version, that contains security fix + Shockwave crash fix. http://labs.adobe.com/downloads/flashplayer.html

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Fortigate Web Page Blocked – Whitelisting Category not working

Posted by paris on Oct 18, 2017 in Networking

The Category blocked was Alcohol, however, I whitelisted this category. Disabling the filter based category allowed this.

Problem was the Fortigate GUI was not displaying the actual committed config on the firewall ( the profile was screwed )

solution

this way the “default” profile was visible

Also you might want tod DNS Filter

basically DNS filters work like webfilter but at DNS level

so let say you want to go to youporn

the firewall try to resolve the name of youporn.com but since it is a blocked category

it blocks the resolution of the name even before you get to browse itWe saved this conversation. You’ll see it soon in the Conversations tab in Skype for Business and in the Conversation History folder in Outlook.

 

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Things to Turn on in Office 365 Out the Box

Posted by paris on Oct 9, 2017 in Research

Disable Clutter Mode in Outlook

Notification

Billing

  • Office 365 subscriptions billing administrators goes to [email protected] email
  • Azure configured in subscriptions
  • Management
  • Azure using ea configured per department

Organisation Profile

  • Company Information
  • Technical contact
  • Azure AD Connect
  • Get-MsolCompanyInformation
  • Set-MsolCompanyContactInformation -TechnicalNotificationEmails “<email address>”
  • Technical contact should be set to generic IT email address for the client. If in doubt, use help@huonit.com.au
  • Message center preference – disable weekly digest

Azure AD Connect

Notification to generic email address

 

Security & Compliance

Region and industry settings – configure appropriately

Enable Auditing of admin user activities

  1. Visit https://protection.office.comas an Office 365 admin
  2. Click Search & investigation
  3. Click Audit log search
  4. If it’s not enabled you’ll see a link to Start recording user and admin activities. Click it to enable the Unified Audit Log.

User Accounts

Enforce MFA

Update wallpaper on domain controllers for clients we managed to notify administrator that MFA has been turned on for Office 365.

MFA activation issue

portal.office default to use SMS, update account to use mobile app

 

Enable Remember password for 14 days as a company wide settings

Disable user ability to change their password via Office 365 portal, if Azure AD Premium is not purchased.

https://blogs.technet.microsoft.com/ilvancri/2012/06/22/take-away-the-possibility-for-users-in-exchange-online-to-change-their-own-password/

Otherwise, password write back should be implemented for Azure Premium clients.

 

Exchange Online

Limit permission for outlook Groups – https://thoughtsofanidlemind.com/2016/06/07/controlling-the-creation-of-office-365-groups-using-an-azure-active-directory-policy/

Auditing of mailbox – audit owner activities

Legal hold or archiving?

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APC Transfer Limits for Input Voltage

Posted by paris on Oct 9, 2017 in Research

Per the user guide

http://www.apc.com/salestools/PMAR-8P9G2C/PMAR-8P9G2C_R2_EN.pdf

The below commands help you change the alerts on a UPS Network Management Card 2 using SSH , cannot be done via Web Interface 

cfgpower -all ( Show all applicable power parameters for this UPS. ) 

cfgpower -l ( 97–106 Set the low transfer point, in VAC. ) 

cfgpower -h (127–136 Set the high transfer point, in VAC.)

cfgpowerov (100 | 120 | 110 |) – Set the outlet voltage, in VAC.

cfgpower -s Normal | Reduced | Low ) – Set the sensitivity, using one of the three arguments.

cfgpower -bu (127 | 130 | 133 |136 | 139 | 142 |145 | 148 ) – Set the bypass upper voltage in VAC; when the voltage rises above this value, the device goes into bypass. )

cfgpower -bl (086 | 088 | 090 | 092 | 094 | 096 | 098 | 100 ) – Set the bypass lower voltage in VAC; when the voltage drops below this value, the device goes into bypass. )

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How to remove Reply Link on WordPress Comments

Posted by paris on Oct 6, 2017 in Wordpress

The Fucntion for this is :  http://codex.wordpress.org/Function_Reference/comment_reply_link

Howvever you can disable discussions in Comments via :

Enable nested comments in Admin > Settings > Discussion:

Enable threaded (nested) comments levels deep

 

Can also be personalised via 

Personalizing the WordPress Comment Reply Link

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Veeam Backup Failed : VSS_WS_FAILED_AT_PREPARE_SNAPSHOT

Posted by paris on Oct 6, 2017 in Fixes

 Error: Unfreeze error: [Backup job failed.
Cannot create a shadow copy of the volumes containing writer’s data.
A VSS critical writer has failed. Writer name: [SqlServerWriter]. Class ID: [{a65faa63-5ea8-4ebc-9dbd-a0c4db26912a}]. Instance ID: [{60e3e5dd-73fc-46d6-ab6b-6b8723df09e3}]. Writer’s state: [VSS_WS_FAILED_AT_PREPARE_SNAPSHOT]. Error code: [0x800423f4].]

I restarted the SQL Server VSS Writer ( Can be done during production as only used for backups ) and a retry still errored.

In the end I needed to reboot the server

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554 5.2.0 STOREDRV.Deliver.Exception:StoragePermanentException.MapiExceptionCallFailed; Failed to process message due to a permanent exception with message Cannot open mailbox

Posted by paris on Oct 5, 2017 in Random

Recently had an SBS2011 Server with Exchange 2010 bring up SMTP Errors of

554 5.2.0 STOREDRV.Deliver.Exception:StoragePermanentException.MapiExceptionCallFailed; Failed to process message due to a permanent exception with message Cannot open mailbox

The DB was mounted fine and I could create new users

Mapi would not connect via Outlook 

Opening the mailbox in OWA would bring : 

Exception
Exception type: Microsoft.Exchange.Data.Storage.StoragePermanentException
Exception message: Cannot query rows in a table.

This was for all users

In the end I had to 

Dismount DB

eseutil /p “C:\Program Files\Microsoft\Exchange Server\V14\Mailbox\Mailbox Database\Mailbox Database.edb”

You can try mounting the database. If it mounts, you are good to go, if it doesn’t you have to check the logs:

Check and Repair the database logs

2. Check the exchange logs (don’t forget to specify E00 – the starting sequence for the logs)

eseutil /ml “C:\Program Files\Microsoft\Exchange Server\V14\Mailbox\Mailbox Database\E00”

2.a There will be a list of logs and depending on their state, you may get an error. (They should all say OK, if the logs are clean) Errors vary, but most likely it is a file corruption and needs a chkdsk to run.

As a sidenote, if the database state is Clean Shutdown you can safely remove the logs.

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