A blog for all the virtualization and operating system troubleshooting

  1.Install the speedtest-cli tool sudo apt install speedtest-cli 2.Run the speedtest-cli Server1:~$ speedtest-cli Retrieving speedtest.net configuration... Testing from Cellcom (192.1.1.1)... Retrieving speedtest.net server list... Selecting best server based on ping... Hosted by Partner Communications (abc) [13.62 km]: 3.437 ms Testing download speed................................................................................ Download: 671.98 Mbit/s Testing upload speed...................................................................................................... Upload: 689.19 Mbit/s server1:~$

  Issue: Unable to type anything on VMware VM console using keyboard Solution: Make sure your keyboards "Scroll Lock" is enabled Now try typing in the console.

  Error: In the vCenter while checking the Storage policy profiles not showing any IOfilter profiles of thrid party. Solution: Verify the Storage provider status from vCenter->Config ->Security ->Storage Providers      here the third party installed Providers should list. if not listing :   a)run " Synchronize Storage Providers " If it's offline : Open PowerCLI and connect  the vCenter Server: # Connect-VIServer --server <vCenter-FQDN> Remove offline IOfilters: # Get-VasaProvider | Where-Object {$_.Namespace -eq 'IOFILTERS' -and $_.Status -like 'offline'} | Remove-VasaProvider In vSphere Client, go to vCenter > Configure > Storage Providers. Click on “Synchronize Storage Providers”.

 Error When you try sudo for root permision you will get below error: This account is currently not available Solution 1.Remove nologin from the /etc/passwd file     sudo nano /etc/passwd     Change the "/usr/sbin/nologin" to /bin/bash 2.edit /etc/ssh/sshd_config      PermitRootLogin yes 3. Restart SSH service     systemctl restart ssh

  Issue: Create a Storage LUN/Volume Share or export this to multiple ESXi hosts Create Datastore from one of the ESXi host\ When you rescan the storage from other ESXi hosts, the existing VMFS datastore not listing. Solution: Login to the ESXi host and list the volumes:  >>esxcfg-volume -l Mount the volume in the ESXi host: >>esxcfg-volume -m "DatastoreName"

  First step is to create an NFS server using an Ubuntu server 1.Install Ubuntu Server 2.Install NFS server package :  apt install nfs-kernel-server 3.Create a NFS Share Folder: mkdir /nfsshareshare chown -R nobody:nogroup /nfsshareshare chmod 777 /nfsshareshare 4.Create exports config file vi /etc/exports  and add below details: /nfsshareshare *(rw,sync,no_root_squash,no_subtree_check,insecure) 5.Apply exports config using   exportfs -a  6. verify the share details using:   showmount -e 7.Now From vCenter server create Datastore and provide share path and NFS server name: