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PostgreSQL Error code 23505 - Fix it Now ?


This article covers methods to fix PostgreSQL Error code 23505 for our customers. This issue happens when you are trying to insert a value in a column that already exists there. If you have a sequencer on the field (like with a serial column type), it is likely out of sync with the table because you have done an insert and supplied a value (rather than letting the "default" mechanism handle it by getting the nextval from the sequencer). If this is the case, reset the sequencer with a setval statement to the max value of the field.

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VMware error, Missing credentials for vCenter server - Fix it Now ?


This article covers methods to fix VMware errors for our customers. Basically, this guide provides information on troubleshooting common issues with logging in to the vSphere Web Client when using the Use Windows Session Credentials feature.

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Monitoring VMware with Nagios XI


This article will guide you on the steps to Monitor VMware with #Nagios.
To Monitor the VMware host
i. Enter the Address, Username and Password of your #ESX / #ESXi host.
ii. Select Monitor the #VMware #Host.
iii. Click Next to go to Step 2.
iv. On step 2 you will configure all of the options for #monitoring.

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vCenter installation on ESXi Host


This article will guide you on how to install vCenter Server on a physical server or a virtual machine running Windows.

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Vmware operation failed to upload to datastore


This guide will help you to fix errors ecountered while trying to upload or copy files to the VMFS Datastore in VMware vSphere (6.7) using the “Upload Files” button in the vSphere Client interface.

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