Ubuntu runs on Hyper-V perfectly fine, so you may want to run many Ubuntu Virtual Machines (VMs) on Hyper-V Server 2012. R2 This article will show you how to clone or duplicate a single Ubuntu server on Hyper-V with different network interfaces and host names. Cloning Linux servers on Hyper-V is easy and quick when you have the right knowledge and tools.
Read my full article here:
https://4sysops.com/archives/clone-a-ubuntu-server-in-hyper-v-2012-r2/
Sometimes you need to find all the computers on a domain that are running a certain particular service. By using Active Directory, supplying your canonical domain name, and define an output file, you can easily create a list of computers running a service.
First, start PowerShell as administrator, and import active-directory powershell components with the following command:
Import-Module ActiveDirectory
Then, open PowerShell ISE and copy in the following into a new .ps1 script:
$ou = "OU=Computers,OU=finance,DC=east,DC=contoso,DC=com"
$servers = Get-ADComputer -Filter * -SearchBase $ou | select-object
-expandproperty name
Foreach ($server in $servers){
$Data = Get-Service -ServiceName *SAVService* -ComputerName $server |
select machinename,name | sort machinename | format-table -AutoSize
Write($Data) | Out-File .\machinesrunningSAVService.txt -Append
}
Run the script, and your output file will look similar to the following:
MachineName Name ----------- ---- hostname1 SAVService MachineName Name ----------- ---- hostname2 SAVService MachineName Name ----------- ---- hostname3 SAVService
If a computer is powered up on your network, but RDP is not enabled, you can create a group policy to enable RDP, and then restart the computer. Or instead, you can use psexec to remotely enable RDP.
Below are a couple one-line scripts to enable RDP on a remote computer from a different computer on the same domain. Keep in mind you need to be an administrator and you will only enable RDP for yourself, not an entire security group.
psexec64 -u domain\administrator -p "P@ssw0rd" \\remotecomputername.domain.com reg add "hklm\system\currentcontrolset\control\terminal server" /f /v fDenyTSConnections /t REG_DWORD /d 0
4. Run another command to open the required ports in the firewall on the remote machine
psexec64 -u domain\administrator -p "P@ssw0rd" \\remotecomputername.domain.com netsh firewall set service remoteadmin enable
5. RDP into the remote machine with mstsc.exe successfully, and that’s it!
PowerShell – copy a list of files to a list of multiple computers
Here is a simple PowerShell script I found (linked below) that can easily copy a list of files to a list of computers. If you want to copy more than one file to a lot of computers on your network, this simple script should work ok. It’s better to use a network share and use a UNC path to denote where the file source and destinations.
$a = Get-Content "C:\computerlist.txt"
foreach ($i in $a)
{$files= get-content "C:\fileslist.txt"
foreach ($file in $files)
{Copy-Item $file -Destination \\$i\C$\admin\ -force}
}
Here is a sample of what the computerlist.txt will look like:
hostname1.contoso.com hostname2.contoso.com hostname3.contoso.com
And here is a sample of what the fileslist.txt will look like:
\\fileserver\share\IT\myscript.ps1 \\fileserver\share\IT\Readme.txt \\fileserver\share\IT\uninstall.bat
https://social.technet.microsoft.com/Forums/office/en-US/09575f93-7b17-4621-804d-4b018df34771/powershell-copy-a-list-of-files-to-multiple-servers-and-backup-exisiting-files?forum=winserverpowershell
PowerShell – copy a list of files to a list of multiple computers
Here is a simple PowerShell script I found (linked below) that can easily copy a list of files to a list of computers. If you want to copy more than one file to a lot of computers on your network, this simple script should work ok. It’s better to use a network share and use a UNC path to denote where the file source and destinations.
$a = Get-Content "C:\computerlist.txt"
foreach ($i in $a)
{$files= get-content "C:\fileslist.txt"
foreach ($file in $files)
{Copy-Item $file -Destination \\$i\C$\admin\ -force}
}
Here is a sample of what the computerlist.txt will look like:
hostname1.contoso.com hostname2.contoso.com hostname3.contoso.com
And here is a sample of what the fileslist.txt will look like:
\\fileserver\share\IT\myscript.ps1 \\fileserver\share\IT\Readme.txt \\fileserver\share\IT\uninstall.bat
https://social.technet.microsoft.com/Forums/office/en-US/09575f93-7b17-4621-804d-4b018df34771/powershell-copy-a-list-of-files-to-multiple-servers-and-backup-exisiting-files?forum=winserverpowershell
Here’s a good quote for other important features regarding GUID (GPT stands for GUID Partition Table).
“On an MBR disk, the partitioning and boot data is stored in one place. If this data is overwritten or corrupted, you’re in trouble. In contrast, GPT stores multiple copies of this data across the disk, so it’s much more robust and can recover if the data is corrupted. GPT also stores cyclic redundancy check (CRC) values to check that its data is intact — if the data is corrupted, GPT can notice the problem and attempt to recover the damaged data from another location on the disk. MBR had no way of knowing if its data was corrupted — you’d only see there was a problem when the boot process failed or your drive’s partitions vanished.”
exFAT was released in 2006 as well, but Microsoft added backwards-compatibility to previous Windows versions from before Vista. The main benefit to it is that it doesn’t have the file size restrictions of FAT32, so individual files with exFAT can be larger than 4GB each. It probably isn’t super important for smaller files, but it could be a necessity for people working on larger files like videos or disk images.
Below is a step-by-step procedure for formatting a large External USB drive which can be used by both a Mac and a PC. This setup will utilize the newest, most fault-tolerant partition tables, and allows for the largest volume and file size capabilities. In my case I am formatting an 8TB Seagate Backup Plus+ USB 3.0 external HDD hard drive.
First, plug a new USB drive into a Mac:
So my first Raspberry Pi 3 Model B 32GB just arrived which is part of a “Canakit” on Amazon which can be found here. Below is a general setup and config step by step guide to get you started with your own Pi. I may follow up this post with the progress of my pie-in-the-sky project to build a miniature hyperloop “pod” and track, controlled by a stand-alone Raspberry Pi. But before I get into powering my Pi with an electrified rail, we need to get the Pi setup and configured.
sudo chmod u+s /bin/ping
With that command I can now ping out and about.
tvservice -d edid edidparser edid
and then seeing that I do have a DMT monitor (group 2) and an hdmi mode 82, I edited /boot/config.txt with the new editor named Geany. I started geany with sudo so I could edit the protected file with the command:
sudo geany
Which brings up the Geany file editor running as sudo, and then I could open and browse to the File System > /boot/ directory where I could edit the file config.txt to include the following lines:
hdmi_group=2 hdmi_mode=82
After a restart my monitor’s resolution is correct.
Linux raspberrypi 4.4.9-v7+ #884 SMP Fri May 6 17:28:59 BST 2016 armv7l GNU/Linux
So it is time to run an update. It’s so nice that the distro is debian-based and the familiar apt package management system is installed. No dist-upgrade necessary.
sudo apt-get update sudo apt-get upgrade
If you’ve been tasked with the domain migration of a number of OS X El Capitan and Mavericks iMacs or MacBook Pro or Mac Air workstations, you may need to retain the user profiles. Normally, when unbinding, and then binding to a new domain, your user’s settings will be lost. You may be tempted to use Migration Assistant, but this usually requires copying the entire profile somewhere else which can take a long time and use a lot of disk space.
With this list of steps, you can use commands, scripting, and setting permissions and ownership of the user directories to perform the domain migration in-place.
Below is the sequence of commands and workflow step by step to migrate an OS X mac to a different domain. The key is to delete the sqlindex files, and prepare the user account for it’s new permissions. Please note the guide may not make sense at first while reading, but it will allow you to migrate your macs so that the users keep their same profile. Let me know if this guide helps you in your domain migration and if you find any better solutions.
| Tasks | Commands | |
| 1 | Login as admin user and list users | Terminal -> ls -alh /Users/ |
| 2 | move domain User folders to .old | sudo mv /Users/johndoe /Users/johndoe.old |
| 3 | Unbind Machine | Preferences->Accounts->Login Options->Network account server -> Directory utility ->Active directory->Unbind |
| 4 | Delete sqlindex files found in ls /var/db/dslocal/nodes/Default/ | sudo rm -f /var/db/dslocal/nodes/Default/ |
| sudo rm -f /var/db/dslocal/nodes/Default/ |
||
| sudo rm -f /var/db/dslocal/nodes/Default/ |
||
| 5 | reboot | sudo reboot |
| 6 | Bind to new domain | Preferences->Accounts->Login Options->Network account server -> Directory utility ->Active directory->Unbind |
| 7 | reboot | |
| 8 | login as user | |
| 9 | Logout and login as admin | |
| 10 | move User folder .new | After you have logged in as the user under the new domain you need to move the newly created User home folder to johndoe.new and move the .old User folder to /Users/johndoe with the command: |
| sudo mv /Users/johndoe /Users/johndoe.new | ||
| 11 | move .old to new username | sudo mv /Users/johndoe.old /Users/johndoe |
| 12 | Change ownership of user home folder | sudo chown -R johndoe:”Domain\Domain Users” /Users/johndoe |
| 13 | logout as admin | |
| 14 | Reboot | |
| 15 | login as that user (johndoe) | |
| 16 | Click on “Create a new keychain” much easier in El Capitan and Yosemite | If “Create new Keychain” fails then goto Keychain Access –> Preferences –> Reset Default Keychain |
This video demonstrates how to use Open Broadcaster Software for capturing your desktop into a record-able video. OBS is free software that you can also use to record your gaming sessions to never miss that moment during your computer game. Here is a good post on Reddit.com describing how to set up OBS for capturing your game with a 20 second “buffer” so you can show your frags on youtube or convert them to a gif. But for now, below I put together a tutorial on how to setup OBS to record your desktop screen and audio to make videos like the one here:
This video shows you how to setup a user account for your kid/child without creating an email address. Windows 10 wants you to use an email address to create a user account. When you try to setup an account, it asks you to use an existing email and if not, it tries to force you to sign up for an outlook.com account. This video shows you how to bypass the Windows User account setup and use Computer Management to create a normal/local user account on Windows 10 Pro version for your kids.
