Office 365 Groups are a shared workspace for email, conversations, files, and events where group members can collectively get stuff done. It compliments the introduction of Microsoft Teams. The main thing to keep in mind is that this feature is still evolving. Why is it important to control Office 365 Group creation? This feature is … Read moreCleaning up Office365 Groups Mess
Prerequisites: VM/ Physical – It is recommended to have the time server as a physical server, but VMs should be okay depending on your setup and requirement. My virtual lab environment is VMware based so here’s the guide for a VM. Once the CentOS Minimal is installed on the VM make sure to install open-vm-tools. … Read moreHow to Configure Time Server (NTP Server) on Centos 7?
If you are not unable to connect ESXi server to vCenter, or when you cannot connect to ESXi server from VI client it may be necessary to restart the management agents on ESX or ESXi host. To restart the management agents on ESXi 6.x This applies to ESX4/5.x/6.x For the restart of the management agents (mgmt-vmware … Read moreHow to restart management agents on ESX or ESXi host
Security Groups are great for managing large groups for permissions. Â A client requested that they needed to have Read-Only, Read-Write, and Ready-Modify (allow for deleting) for all their file shares for better management. Getting the Share Names In order for me to create the groups I needed the share names. PowerShell to the rescue! Type … Read moreCreating Security Groups for File Shares in Bulk using PowerShell
From time to time I come across this need; where I need to scrub a file where there are duplicates, there are blank lines, the sort order is all wack, and it just needs to be formatted to where it can be more readable and/or usable. This method just doesn’t apply to text, but also … Read moreRemove duplicates, blank lines, spaces, to get unique values and sort data in one operation
Admins need to understand some basic networking concepts like CIDR. These are needed when working with AntiSpam & Archiving providers. Here is a simple chart describing the CIDR subnets.
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32 = X-network-bits + Y-host-bits Addresses = 2 ^ Y-host-bits -------------------------------------------------------------- CIDR Total number Network Description: Notation: of addresses: Mask: -------------------------------------------------------------- /0 4,294,967,296 0.0.0.0 Every Address /1 2,147,483,648 128.0.0.0 128 /8 nets /2 1,073,741,824 192.0.0.0 64 /8 nets /3 536,870,912 224.0.0.0 32 /8 nets /4 268,435,456 240.0.0.0 16 /8 nets /5 134,217,728 248.0.0.0 8 /8 nets /6 67,108,864 252.0.0.0 4 /8 nets /7 33,554,432 254.0.0.0 2 /8 nets /8 16,777,214 255.0.0.0 1 /8 net -------------------------------------------------------------- /9 8,388,608 255.128.0.0 128 /16 nets /10 4,194,304 255.192.0.0 64 /16 nets /11 2,097,152 255.224.0.0 32 /16 nets /12 1,048,576 255.240.0.0 16 /16 nets /13 524,288 255.248.0.0 8 /16 nets /14 262,144 255.252.0.0 4 /16 nets /15 131.072 255.254.0.0 2 /16 nets /16 65,536 255.255.0.0 1 /16 -------------------------------------------------------------- /17 32,768 255.255.128.0 128 /24 nets /18 16,384 255.255.192.0 64 /24 nets /19 8,192 255.255.224.0 32 /24 nets /20 4,096 255.255.240.0 16 /24 nets /21 2,048 255.255.248.0 8 /24 nets /22 1,024 255.255.252.0 4 /24 nets /23 512 255.255.254.0 2 /24 nets /24 256 255.255.255.0 1 /24 -------------------------------------------------------------- /25 128 255.255.255.128 Half of a /24 /26 64 255.255.255.192 Fourth of a /24 /27 32 255.255.255.224 Eighth of a /24 /28 16 255.255.255.240 1/16th of a /24 /29 8 255.255.255.248 5 Usable addresses /30 4 255.255.255.252 1 Usable address /31 2 255.255.255.254 Unusable /32 1 255.255.255.255 Single host -------------------------------------------------------------- |
In networks larger than a /31, one address is used for the network number, another for the broadcast address, and generally another as the default … Read moreA chart describing CIDR subnets
Often times admin have to creates tasks like removing log files or some other files on a regular schedule. Here is an automated way of removing files / folders older than X days. Create a Batch file or Powershell script and add it to scheduled task. Batch File:
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@echo off :: set folder path set dump_path=c:\shares\dump :: set min age of files and folders to delete set max_days=7 :: remove files from %dump_path% forfiles -p %dump_path% -m *.* -d -%max_days% -c "cmd /c del /q @path" :: remove sub directories from %dump_path% forfiles -p %dump_path% -d -%max_days% -c "cmd /c IF @isdir == TRUE rd /S /Q @path" |
Powershell:
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# set folder path $dump_path = "C:\shares\dump" # set min age of files $max_days = "-7" # get the current date $curr_date = Get-Date # determine how far back we go based on current date $del_date = $curr_date.AddDays($max_days) # delete the files Get-ChildItem $dump_path -Recurse | Where-Object { $_.LastWriteTime -lt $del_date } | Remove-Item |
Let me start by saying that I don’t recommend doing this at all. Password Never Expires is bad security practice, but there are situations that might require it. I had a similar request on how this could be done. Setting it for multiple users:
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#Connect of Office365 Import-Module MSOnline $O365Cred = Get-Credential $O365Session = New-PSSession –ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell -Credential $O365Cred -Authentication Basic -AllowRedirection Import-PSSession $O365Session Connect-MsolService –Credential $O365Cred #Get a List of user that belong to the second domain $SDusers = Get-MsolUser -All -DomainName "yourseconddomain.com" #Setting the password never to expire ForEach($SDuser in $SDusers) { Set-MsolUser -UserPrincipalName $SDuser -PasswordNeverExpires $true } |
Setting it for a single user:
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Get-MSOLUser -UserPrincipalName user@domain.com | Select PasswordNeverExpires |
In Office365 if you have more than one domain in a subscription, there are times where you may want to get the password age for users of that domain. In my case to check which users are covered and meeting policy and get the users addressed.
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Get-MsolUser -All -DomainName "yourdomainname.com" | select DisplayName, LastPasswordChangeTimeStamp,@{Name=â€PasswordAgeâ€;Expression={(Get-Date)-$_.LastPasswordChangeTimeStamp}} |
The output will be similar to: