IT System View

DHCP Failover In order to have secondary node to provide IP to clients, we are going to add failover node to   primary (10.211.0.25), we are adding partner Server (LABdc02-10.211.0.26), Configure a Failover relationship. Configuring the DHCP failover in your LAN is a simple operation to improve the reliability of the network. There are two main ways to provide DHCP failover: ·          Load balancing ·          Hot standby Load balancing allows to share the load between two or more DHCP servers while the Hot standby mode simply provide DHCP redundancy. In this guide we adopted the Hot standby mode. The DHCP servers are two Windows 2012 R2 machine in the same domain (mandatory requirement).   First, configure a failover relationship using (LABDC01) and (LABDC02)  TO CONFIGURE A F...

Exchange OWA Error (Something Went Wrong) Exchange 2016 Cu8 on Windows Server 2012 R2 gave error on OWA, ECP will work if administrator doesn’t have a mailbox. else even ecp will throw the same error. An unexpected error occurred and your request couldn't be handled. X-ClientId: 15BED63F62FB4FDB809703ED2534C19D request-id 1ac56275-a1ab-48cf-9f82-880c49767a19 X-OWA-Error Microsoft.Exchange.Diagnostics.ExAssertException X-OWA-Version 15.1.1415.4 X-DAGServer COMM X-DAGerver COMM Date:11/07/2018 3:30:06 PM Description: Unable to find the certificate with thumbprint [Thumb code] in the current computer or the certificate is missing private key. The certificate is needed to sign the outgoing token. or invalid or expired ' Microsoft Exchange Server Auth Certificate' Solution: Create new  Microsoft Exchange Server Auth Certificate  1.      Open Exchange admin Center ECP, then go to servers, certificates, find Microsof...

How to give permission to user to send email to mail group on Exchange Admin Center Login to Exchange Admin Center web link https://mailserver/ecp  Go to recipients , then groups then select a group that you want to give a user permission to send email to. Go to delivery management , here Click Plus sign to add a user to give permission to send email to this group. The default option is  ‘Only senders inside my organization’ .and  there is other option to make a group to receive external emails as well, 

How to create mail contacts of external users on exchange server Open Exchange admin center web link https://mailserver/ecp/ , navigate to Recipients > Contacts . Click New Add Icon > Mail contact . Complete the following boxes on the New mail contact page: First name : Use this box to type the contact's first name. Initials(Optional) :   Use this box to type the contact's initials. Last name : Use this box to type the contact's last name. Display name(Required *) : Use this box to type a display name of the contact. This is the name that's listed in the contacts list in the EAC and in your organization’s address book. By default, this box is populated with the names you enter in the First name, Initials, and Last name boxes. If you didn't use those boxes, you must still type a name in this box because it’s required. The name can't exceed 64 characters. Name (Required *) : Use this box to type a name for the contact. This is the nam...