Most vendors have their own software to update their system drivers. Here I am going to list for Dell, HP and Lenovo. I am sure other vendor may have their own too.
Dell
It’s called Dell Command Update you can download it from Dell website https://www.dell.com
or You can also do via the website: https://www.dell.com You will need to know your system service tag, then go to drivers Then let the “Let us analyze your system to find the latest updates.” For you
Many small companies have a small network and they have limited IT staff or manage IT services to take care of their network. I have seen old network devices, application, plan for cleaning up but it’s been forgotten which creates a problem in the future. The worse part is when the company doesn’t have a strict policy, budget or just don’t want to change, so things just build up until it reaches to a dead end. The domain controller is very important part of the network, if it keeps up to date and removed the old controller, then it could cause major issues. Here is how to clean up an old domain controller. Make sure you have a good backup and primary domain controller is a good healthy state.
Open Active Directory Users and Computers
Select domain>Domain Controllers>on right side it will list your domain controllers on the right side panel. You will see DC Type GC (Global Catalog) and Read-Only, GC Domain Controller.
Right click on the domain controller you want to delete, select delete. You will see confirmation screen select Yes
Select the options to clean up when your old domain controller deletes
Then it’s going to have confirmation and list of operations, based on your selection, once check then click OK
If your domain controller is part of GC, you will see: “This Active Directory Domain Controller is a global catalog“, before you click Yes, make sure you have at least one Global Catalog domain controller.
That will remove your old domain controller, then clean up any other metadata left around. If you have multi sites, open Active Directory Sites and Services: Sites>Delete old site
You will get Confirm Subtree Deletion message, click yes if nothing else is on that site
Then check your primary domain controller health and logs, to make sure everything is fine. Keep your eyes open on any application/services that may have any issues, it should not, but just in case. That’s it
If you are using Let’s Encrypt certification and have received an email to take action on renewal of your certificate. That’s because lets Encrypt had announced last October 2018, that they will end support for TLS-SNI-01 validation method on February 13, 2019. You need to update your ACME client to use an alternative validation method alternative validation method: HTTP-01, DNS-01 or TLS-ALPN-01. If no action taken you may have out-dated certificate for your domain.
To check your certbot version:
certbot –version
If have your server up to update, then the version should be 0.28. If not you can upgrade your Certbot at https://certbot.eff.org/. It will ask you to pick your software and system and it will give you detail documentation on how to upgrade, baased on your version of software/system.
To install for Apache, you can run this command:
sudo apt-get install python-certbot-apache
To
test do a renewal dry run:
sudo certbot renew –dry-run
If everything goes well you should see Congratulation, all renewals succeeded, if it fails then you need to fix it. Take a look at log, firewall to make sure it’s not been blocked and try again.
In case you have deleted mailbox my mistake, you may still be able to recover if your backup has not run yet. You can recover mailbox as the same user or attach to a new user. If you have deleted the Active Directory account when you had delete Mailbox, you need to re-create it first then you will be able to attach the disconnected mailbox to a user. If you don’t see anything under Disconnected mailbox, then you will not be able to reconnect without restoring from your backup first. If you want to remove mailbox check post How to remove Mailbox only on exchange 2010
Reconnect disconnected Mailbox
Open Exchange Management Console Expand Recipient Configuration>Disconnected Mailbox On the right side select user mailbox, you want to reconnect.
You will need to choose mailbox type, if it’s User Mailbox, Room Mailbox, Equipment Mailbox or Linked Mailbox, based on your selection you will see different options to choose from, here I am selecting User Mailbox
You will have option to choose Matching user or Existing
User
Matching: you will not get option to select user, it will automatically connect Matching user
Existing user: Then you will get option to search same or another user, if user does not exist, create it first then try reconnecting.
How to Remove Mailbox via Power shell
Open Exchange Management Shell
Remove-Mailbox –Identity “NameOfUser”
Then it will give you message “Are you sure you want to perform this action?” once you are sure type y and press Enter
Exchange 2010 is very old and its extended supports ends in 2020, so you should have already migrated over to a newer version of Exchange or to cloud Microsoft office 365. In case you have not and wanting to do clean up, before your migration, there are cases that mailbox no longer needed but Windows login needed. Here is how to remove mailbox only, without removing Active Directory login for the user. You can see Microsft Lifecycle at https://support.microsoft.com/en-us/lifecycle
How to Disable Mailbox
Open Exchange Management Console
Expand Recipient Configuration>Mailbox
On the right side select the user mailbox you want to remove
Right Click on the user and select Disable
You will get a message to confirm, that you want to Disable, which will remove the Exchange properties from the Windows user object and mark the mailbox in the database for removal. Select Yes
Then that mailbox goes in Disconnected Mailbox and will be kept based on setting set for settings under:
Organization Configuration>Database Management>
Look at properties of mailbox then click on Limits tab
You will see “Deletion settings“
Keep deleted items for (days): x
Keep deleted mailboxes for (days): x
Also, if you have checked the box “Don’t permanently delete items until the database has been backed up.” then it will not delete until it’s been backed up. This way if you deleted by mistake wrong user mailbox you can re-connected.
How to Disable Mailbox via Power shell
Open Exchange Management Shell: Disable-Mailbox –Identity “NameOfUser” Then it will give you message “Are you sure you want to perform this action?” once you are sure type y and press Enter
Or
If you don’t want to get confirmation: Disable-Mailbox –Identity “NameOfUser” -Confirm:$false
That’s it, if the name does not match it will give you error
As you can see Exchange 2010 Service Pack 3 is ending it’s extended support by 1/14/2020
