A blog for all the virtualization and operating system troubleshooting

  1)For encrypt use below command: for the password" Ranjith"  echo Ranjith | openssl enc -aes-256-cbc -a -salt -pass pass:tecmint [root@ranjith]# echo Ranjith | openssl enc -aes-256-cbc -a -salt -pass pass:tecmint U2FsdGVkX1/lvI5yT7l7fPeg/thWbJN76DlM++FltEKqWUzJKGSjo 2)To decrypt the above encrypted string use: echo <> | openssl enc -aes-256-cbc -a -d -salt -pass pass:tecmint [root@ranjith]# echo U2FsdGVkX1/lvI5yT7l7fPeg/thWbJN76DlM++FltEKqWUzJKGSjo | openssl enc -aes-256-cbc -a -d -salt -pass pass:tecmint Ranjith

 In Linux we can stop firewalld service by below commands: $ systemctl status firewalld $ systemctl stop firewalld To Disable permanently: $ chkconfig firewalld off

  To Stop vCenter server service: service-control --stop --all To Start vCenter server service: service-control --start --all

 Steps to follow: 1.Check Existing config - w32tm /query /status C:\Users\Administrator>w32tm /query /status Leap Indicator: 0(no warning) Stratum: 1 (primary reference - syncd by radio clock) Precision: -23 (119.209ns per tick) Root Delay: 0.0000000s Root Dispersion: 10.0000000s ReferenceId: (source name:  "") Last Successful Sync Time: 11/11/2022  Source: Local CMOS Clock 2.Stop Windows Time service - net stop w32time C:\Users\Administrator>net stop w32time The Windows Time service is stopping. The Windows Time service was stopped successfully. 3.Sync with NTP server - w32tm /config /manualpeerlist:<NTP Server NAPE/IP> /syncfromflags:MANUAL C:\Users\Administrator>w32tm /config /manualpeerlist:ntp.test.net /syncfromflags:MANUAL The command completed successfully. 4.Start the windows Time service -  net start w32time C:\Users\Administrator>net start w32time The Windows Time service is starting. The Windows Time service was started successfully. 5.Re...

  Power Off VM Go to VM Advanced settings Add Parameter: snapshot.maxSnapshots  = "n"

 Commnd to verify TLS version on linux openssl ciphers -v | awk '{print $2}' | sort | uniq [root@ranjith2 ~]# openssl ciphers -v | awk '{print $2}' | sort | uniq SSLv3 TLSv1.2 [root@ranjith2 ~]#

 Error: connect-VIserver :         Connect-VIServer                Could not resolve the requested VC server. Additional Information: There was no endpoint listening at https: //<IP>/sdk that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details. At line:1 char:1 + connect-VIserver Solution: Disable the proxy setting and try connect. Set-PowerCLIConfiguration -ProxyPolicy NoProxy -Confirm

 Error: Install-Module VMware.PowerCLI -Scope CurrentUser PackageManagement\Install-Package : The module 'VMware.VimAutomation.Sdk' cannot be installed or updated because the authenticode signature of the file 'VMware.VimAutomation.Sdk.cat' is not valid. At C:\Program Files\WindowsPowerShell\Modules\PowerShellGet\1.0.0.1\PSModule.psm1:1809 char:21 + ...          $null = PackageManagement\Install-Package @PSBoundParameters +                      ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~     + CategoryInfo          : InvalidOperation: (Microsoft.Power....InstallPackage:InstallPackage) [Install-Package], Solution: Run below command to install module install-module vmware.powercli -scope AllUsers -force -SkipPublisherCheck -AllowClobber