How to:
It is possible to set values in the UMC for computer accounts to make the differentiation and management more precise. If you want to create your own fields so that they can be used with additional values, you can do this using extended attributes.
Step 1: Create new custom attribute
You could create new custom attribute in the following path:
Domain/LDAP-Directory/univention/custom attributes
Step 2: Choose the Type
Choose the Type Settings: Extended attribute
Step 3: Add your settings for the attribute
You have to add your settings in the tab General. In my example i create a count attribute.
Step 4: Set the right Module
In my example i will create an attribute to set a value for IP-Client and i choose Computer:IP client.
Step 5: Set the LDAP mapping
You have to set the LDAP object class and attribute to univentionFreeAttributes and univentionFreeAttribute.
If necesarry, you could set the mark for Remove object class if the attribute is removed
Hint
It is possible to set up to 20 univentionFreeAttributes. Make sure that the selected attribute is not in use, otherwise there will be a conflict in the LDAP.
Step 6: Settings for UMC and ordering numbers
As we want to add a new field for the computer account, we need to define this in the Group layout and set the group name and group ordering number to group name=Computer account, because we want the new field in this tab.
Set both ordering number and group ordering number to the same value, so you can prevent possible errors.
It’s very important to translate the entries correctly, otherwise the attribute will not work as expected.
Step 7: Configure the data type
In my example i just want to set any value, so i used the syntax string.
I prefer to set the option Editable after creation to make this attribute more customizable.
Save everything and create the attribute with that.
Step 8: Check the new field
From now on you can use the new field and the extended attribute as you need.
UDM-CLI way
Of course, it is possible to create the entire extended attribute from the shell. UDM is best suited for this, and the object could then be created as follows.
udm settings/extended_attribute create --position "cn=custom attributes,cn=univention,$(ucr get ldap/base)" \
--set name=count \
--set CLIName=count \
--set shortDescription="Computer count" \
--set translationShortDescription='"de_DE" "Computer Zahl"' \
--set longDescription="This is a attribute to count the computer objects" \
--set translationLongDescription='"de_DE" "Das ist ein Attribute um die Anzahl der Computerobjekte zu bestimmen"' \
--set module="computers/ipmanagedclient" \
--set objectClass=univentionFreeAttributes \
--set ldapMapping=univentionFreeAttribute5 \
--set tabPosition=5 \
--set tabName=General \
--set translationTabName="de_DE Allgemein" \
--set groupName="Computer account" \
--set translationGroupName='"de_DE" "Rechnerkonto"' \
--set groupPosition=5 \
--set syntax=string \
--set valueRequired=0 \
--set mayChange=1 \
--set copyable=1 \
--set deleteObjectClass=1
Object created: cn=count,cn=custom attributes,cn=univention,dc=ucs5schoolhejne,dc=intranet
List the extended attribute with all settings.
udm settings/extended_attribute list --filter cn=count
cn=count
DN: cn=count,cn=custom attributes,cn=univention,dc=ucs5schoolhejne,dc=intranet
CLIName: count
copyable: 1
default: None
deleteObjectClass: 1
disableUDMWeb: None
doNotSearch: None
fullWidth: None
groupName: Computer account
groupPosition: 5
hook: None
ldapMapping: univentionFreeAttribute5
longDescription: This is a attribute to count the computer objects
mayChange: 1
module: computers/ipmanagedclient
multivalue: None
name: count
notEditable: 0
objectClass: univentionFreeAttributes
overwritePosition: None
overwriteTab: None
preventUmcDefaultPopup: None
shortDescription: Computer count
syntax: string
tabAdvanced: None
tabName: General
tabPosition: 5
translationGroupName: de_DE: Rechnerkonto
translationLongDescription: de_DE: Das ist ein Attribute um die Anzahl der Computerobjekte zu bestimmen
translationShortDescription: de_DE: Computer Zahl
translationTabName: de_DE: Allgemein
valueRequired: 0
version: 2