When you install your VMware ESXi hypervisor, the 1st console to which you have access is called DCUI (Direct Console User Interface).
As you will see in the presentation below, this console will allow you to perform some basic operations, as well as consult the various logs of your hypervisor.
To configure some settings of your VMware ESXi hypervisor and access its logs, press the F2 key (as shown at the bottom left of the screen).
Then, log in as requested by VMware ESXi.
To change the account password (root, in our case), go to : Configure Password.
Then, enter the current password, then 2 times the new password and press Enter.
By default, the "Configure Lockdown Mode" option is grayed out, because it's used to prevent users from directly connecting to the VMware ESXi server.
Once the lockout is enabled, you will only be able to manage it from VMware vCenter Server.
To configure the network access used to manage your VMware ESXi hypervisor, go to : Configure Management Network.
When you select this option, VMware ESXi shows :
In this "Configure Management Network" section, you will be able to :
In "Network Adapters", you will be able to choose which network adapter(s) should be used to manage your VMware ESXi hypervisor.
Using multiple network adapters provides fault tolerance and distributes the use of bandwidth across them for outgoing traffic.
If you select a network adapter and press the "D" key (View Details), you will be able to know :
On large corporate networks, the use of VLANs allows a physical network to be virtually segmented into multiple network segments.
To place your VMware ESXi hypervisor on a specific VLAN, go to : VLAN (optional).
Enter the desired ID (VLAN number) if you are using VLANs on your company network.
Otherwise, leave this box empty so as not to use this notion of VLAN.
By selecting the "IPv4 Configuration" option, you will be able to see :
As you can see, in "IPv4 Configuration", you will have the possibility to :
If you want to define a static IPv4 address for your VMware ESXi server, you will need to specify :
Important : if you define a static IP address, then make sure to specify the correct DNS servers in the "DNS Configuration" section available in this "Configure Management Network" section.
By selecting the "IPv6 Configuration" option, you will be able to see :
As you can see, in "IPv6 Configuration", you will have the possibility to :
If you want to set an IPv6 address on your VMware ESXi hypervisor, the only information needed will be :
If you select the "DNS Configuration" option, you will be able to find out :
As you can see, in "DNS Configuration", you will have the possibility to :
If you have defined a static IP address on your VMware ESXi hypervisor, you will therefore have to manually specify the IP address of the DNS server(s) you want to use.
In corporate networks, it often happens that a domain system is used (either through an Active Directory infrastructure or with only a DNS server).
However, as each server and/or client workstation are generally part of the same domain, the automatic addition of a suffix to short names will automatically convert short names (unqualified names) into fully qualified domain names (FQDN).
For example, if we have an Active Directory infrastructure in our company network and the domain name of our Active Directory domain controller is "dc.informatiweb.lan", the DNS suffix that we will specify here will be : informatiweb.lan.
If there is a network problem with your VMware ESXi hypervisor or with one of your network devices, restarting the network services of your VMware ESXi hypervisor may resolve the problem.
However, this will cause a short interruption in the network connection of it, as well as of the virtual machines (which would be running right now, if any).
If your VMware ESXi hypervisor is configured to automatically obtain an IP address from your network's DHCP server, its IP address may change when you restart these network services.
If you are connected to this DCUI console remotely (via SSH, for example), you will therefore be disconnected.
Confirm restarting network services by pressing F11.
The management network shuts down, restarts, and then your network's new IP address is displayed.
So, if it has changed, you have it in front of you (unless you were remotely connected to this console).
The "Test Management Network" option of this DCUI console allows you to perform network tests using the "ping" command.
As shown in this "Test Management Network" window, by default, VMware ESXi will test the connection with :
He will also try to resolve his own domain name.
In our case, we have specified the IP address of our router (10.0.0.1), that of our 10 Gb/s switch (10.0.0.2) and the current host name of our VMware ESXi hypervisor (localhost).
Then, press Enter.
VMware ESXi attempts to ping each IP address one at a time.
Once the test is complete, the status will be OK for each line if it's successful.
Warning : if you try to test the connection to servers running Windows Server, be aware that ping may be disabled by default on them.
Allows you to restore the network configuration, even if VMware ESXi is connected to a Switch or a Distributed Switch (vDS).
The "Restore Network Settings" option restores the network configuration of VMware ESXi to the default settings.
Warning : restoring these network settings will shutdown all virtual machines on your VMware ESXi hypervisor.
Confirm Restore Network Factory Settings by pressing F11.
When you select the "Configure Keyboard" option, VMware will tell you which keyboard layout is currently in use.
Select the keyboard layout that matches yours.
For example, "French" for the "French (France)" keyboard or "Belgian" for "French (Belgium)".
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