VMware: Replacing existing ESXi hosts with the new hosts/hardware
VMware infrastructure upgrade is one of the my 2019 first quarter goals. Upgrading vCSA and replace all the esxi hosts with the new hardwares. I am near completion. I am…
Home Network – pfSense,HP 1810-48G, UniFi UAP-AC-PRO
When I upgraded pfSense to the latest version, it failed to reboot and acted as if nothing was on the hard drive. It took me a while to reconfigure the…
Rebooting a server/workstation remotely
If you do not have RDP access to a server or workstation, use WMI to do the task. PS C:\WINDOWS\system32> $SRV = Get-WmiObject win32_operatingsystem -ComputerName 192.168.4.100 -Credential (Get-Credential) PS C:\WINDOWS\system32>…
Red Hat: Adding unused disk space to the existing volume group
If you have some unused disk space and want to add to the volume group.No data will be lost on existing volume. root@localhost ~]# df -h Filesystem Size Used Avail…
RED HAT : booting to rescue mode using DVD iso
Normally, I do not carry out major maintenance on Friday. If something goes wrong it will ruin your whole weekend. I've been enabling FIPS on all Red Hat servers to…
RED HAT: Extending Logical Volumes
Had a situation whereby /opt was running out of space. /Tmp had ample of space. Therefore, I decided to reduct /tmp and extend /opt volume. Following are the steps that…
Exchange 2013 – update CU 10 to CU 15 failed at 16 of 17 Steps
Exchange 2013 - update CU 10 to CU 15 failed at 16 of 17 Steps failed with the following error: Error: The following error was generated when “$error.Clear(); $dependentAssemblyGeneratorExePath =…
Upgrading vCenter Appliance (vCSA) and ESXi 6.5 to 6.7
This article is for upgrading vCenter Appliance and ESXi 6.5 to 6.7 on internet disconnected environment. Login to https://my.wmware.com/ and download the following two files: VMware-VCSA-all-6.7.0-8546234.iso VMware-ESXi-6.7.0-8169922-depot.zip Always upgrade the…
Copying a file from host OS to Hyper-V VM
To easily copy a file which is not an ISO from host OS to Hyper-V VM, do the following: 1. Right-click on the virtual machine, and choose the Settings command from…
Exchange 2013 fails to deliver mail to a DL
I have an application server auto-generating reports and emailed to a distribution list with external users. Earlier, application server was relaying directly to the customer mail server, but it was…
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