Macetes TI

Send Mail with Office365 Auth

Step-1

    mkdir ~/.certs

Step-2

    certutil -N -d ~/.certs
    Enter a password which will be used to encrypt your keys.
    The password should be at least 8 characters long,
    and should contain at least one non-alphabetic character.

    Enter new password:
    Re-enter password:

Step-3

    echo -n | openssl s_client -starttls smtp -crlf -connect smtp.office365.com:587| sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' > ~/.certs/365.crt
    certutil -A -n "Google Internet Authority" -t "C,," -d ~/.certs -i ~/.certs/365.crt

Step-4

    vim mail-office365.sh
    echo -e "Email content" | mailx -v -s "Email subject" \
     -S smtp-auth=login \
     -S smtp-use-starttls \
     -S nss-config-dir=~/.certs \
     -S smtp=smtp.office365.com:587 \
     -S from="user@office365.com" \
     -S smtp-auth-user=user@office365.com \
     -S smtp-auth-password="passwordxxxx" \
     -S ssl-verify=ignore \
    user@gmail.com

Rename windows computer command

Command Prompt:

netdom renamecomputer Thecomputernamehere /newname:newnamehere /force /userd:domain\username /passwordd:***** /reboot

Powershell:

Example 1: Rename the local computer

This command renames the local computer to Server044 and then restarts it to make the change effective.
PowerShell

Rename-Computer -NewName "Server044" -DomainCredential Domain01\Admin01 -Restart

Example 2: Rename a remote computer

This command renames the Srv01 computer to Server001. The computer is not restarted.

The DomainCredential parameter specifies the credentials of a user who has permission to rename computers in the domain.

The Force parameter suppresses the confirmation prompt.
PowerShell

Rename-Computer -ComputerName "Srv01" -NewName "Server001" -DomainCredential Domain01\Admin01 -Force

Fix Remote Desktop Connection "Internal Error has Occurred"

Step 1

Remove the expired RDP cert
Open Certificates (Local Computer)
Expand Remote Desktop --> Certificates
Delete the expired certificate
If there is no cert listed, that is fine.

Step 2

Fix the owner on the corrupt file.
Browse to C:\ProgramData\Microsoft\Crypto\RSA\MachineKeys
Locate the file starting with f686aace
Right click and select properties --> Security --> Advanced
Change the owner to "Administrators" or "SYSTEM"
Click OK
Backup the file (optional)
Rename or delete the file starting with f686aace

Open services
Restart "Remote Desktop Service"

source:
https://levitrares.com/host-https-social.technet.microsoft.com/Forums/ie/en-US/a9c734c1-4e68-4f45-be46-8cae44c95257/unable-to-remote-desktop-to-windows-server-2012-due-to-failed-to-create-self-signed-certificate?forum=winserverTS

Create DHCP scope with powershell

Create scope:

Add-DhcpServerv4Scope -Name "dhcp.contoso.com" -StartRange 10.110.0.10 -EndRange 10.110.0.250 -SubnetMask 255.255.255.0 -LeaseDuration 8.00:00:00

Set scope options:
Set-DhcpServerv4OptionValue -ComputerName "dhcp.contoso.com" -ScopeId 10.110.0.10 -DnsServer 10.110.0.2,10.110.0.3 -WinsServer 10.110.0.2 -DnsDomain "contoso.com" -Router 10.110.0.1

Check the hard drive integrity - firewall checkpoint 5800

To check the integrity of a hard drive in the Gaia/SecurePlatform OS:

    Connect to the machine over console (serial).

    Reboot the machine.

    Press a key on the "Press any key to see the boot menu" screen. The Check Point Boot Menu now opens.

    Select the "Start in maintenance mode".

    Enter the Expert mode credentials.

    Unmount the file system:

    # umount -a

    For the EXT3 file system, run the applicable 'fsck' commands (skip this step if you have a XFS file system):

        Check and update the bad block list, but do NOT repair:

        # fsck -f -n -c -v

        Repair automatically:

        # fsck -f -p -c -v

        Note: If you detect inconsistencies, 'fsck' may require the user to remove the '-p' flag from the syntax. In such a case, use the 'fsck -f -y' command instead to assume 'yes' to all questions.

        # fsck -f -c -v -y
        # sync
       # reboot

Get the modified date with powershell

To get the modified date on a single file try:

$lastModifiedDate = (Get-Item "C:\foo.tmp").LastWriteTime

To compare with another:

$dateA= $lastModifiedDate 
$dateB= (Get-Item "C:\other.tmp").LastWriteTime

if ($dateA -ge $dateB) {
  Write-Host("C:\foo.tmp was modified at the same time or after C:\other.tmp")
} else {
  Write-Host("C:\foo.tmp was modified before C:\other.tmp")
}

Get-ChildItem -Path D:\PowerShell\ActiveDirectoryGroupList.csv | select Name,CreationTime

Get file version information from the command line

PS> (Get-Command C:\Path\To\Thing.dll).FileVersionInfo.FileVersion
3.1.0.2

The version number parts of the FileVersionInfo are

Product Field	File Field	Meaning	Example
ProductVersion	FileVersion	String version	3.1.0.2 (alpha)
ProductMajorPart	FileMajorPart	First number	3
ProductMinorPart	FileMinorPart	Second number	1
ProductBuildPart	FileBuildPart	Third number	0
ProductPrivatePart	FilePrivatePart	Fourth number	2