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ipa-adtrust-install - Online in the Cloud

Run ipa-adtrust-install in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command ipa-adtrust-install that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


ipa-adtrust-install - Prepare an IPA server to be able to establish trust relationships
with AD domains

SYNOPSIS


ipa-adtrust-install [OPTION]...

DESCRIPTION


Adds all necessary objects and configuration to allow an IPA server to create a trust to
an Active Directory domain. This requires that the IPA server is already installed and
configured.

Please note you will not be able to estabilish an trust to an Active Directory domain
unless the realm name of the IPA server matches its domain name.

ipa-adtrust-install can be run multiple times to reinstall deleted objects or broken
configuration files. E.g. a fresh samba configuration (smb.conf file and registry based
configuration can be created. Other items like e.g. the configuration of the local range
cannot be changed by running ipa-adtrust-install a second time because with changes here
other objects might be affected as well.

Firewall Requirements
In addition to the IPA server firewall requirements, ipa-adtrust-install requires the
following ports to be open to allow IPA and Active Directory to communicate together:

TCP Ports

· 135/tcp EPMAP

· 138/tcp NetBIOS-DGM

· 139/tcp NetBIOS-SSN

· 445/tcp Microsoft-DS

· 1024/tcp through 1300/tcp to allow EPMAP on port 135/tcp to create a TCP listener
based on an incoming request.

UDP Ports

· 138/udp NetBIOS-DGM

· 139/udp NetBIOS-SSN

· 389/udp LDAP

OPTIONS


-d, --debug
Enable debug logging when more verbose output is needed

--netbios-name=NETBIOS_NAME
The NetBIOS name for the IPA domain. If not provided then this is determined based
on the leading component of the DNS domain name. Running ipa-adtrust-install for a
second time with a different NetBIOS name will change the name. Please note that
changing the NetBIOS name might break existing trust relationships to other
domains.

--no-msdcs
Do not create DNS service records for Windows in managed DNS server. Since those
DNS service records are the only way to discover domain controllers of other
domains they must be added manually to a different DNS server to allow trust
realationships work properly. All needed service records are listed when
ipa-adtrust-install finishes and either --no-msdcs was given or no IPA DNS service
is configured. Typically service records for the following service names are needed
for the IPA domain which should point to all IPA servers:

· _ldap._tcp

· _kerberos._tcp

· _kerberos._udp

· _ldap._tcp.dc._msdcs

· _kerberos._tcp.dc._msdcs

· _kerberos._udp.dc._msdcs

· _ldap._tcp.Default-First-Site-Name._sites.dc._msdcs

· _kerberos._tcp.Default-First-Site-Name._sites.dc._msdcs

· _kerberos._udp.Default-First-Site-Name._sites.dc._msdcs

--add-sids
Add SIDs to existing users and groups as on of final steps of the
ipa-adtrust-install run. If there a many existing users and groups and a couple of
replicas in the environment this operation might lead to a high replication traffic
and a performance degradation of all IPA servers in the environment. To avoid this
the SID generation can be run after ipa-adtrust-install is run and scheduled
independently. To start this task you have to load an edited version of ipa-sidgen-
task-run.ldif with the ldapmodify command info the directory server.

--add-agents
Add IPA masters to the list that allows to serve information about users from
trusted forests. Starting with FreeIPA 4.2, a regular IPA master can provide this
information to SSSD clients. IPA masters aren't added to the list automatically as
restart of the LDAP service on each of them is required. The host where
ipa-adtrust-install is being run is added automatically.

Note that IPA masters where ipa-adtrust-install wasn't run, can serve information
about users from trusted forests only if they are enabled via ipa-adtrust-install
run on any other IPA master. At least SSSD version 1.13 on IPA master is required
to be able to perform as a trust agent.

-U, --unattended
An unattended installation that will never prompt for user input

-U, --rid-base=RID_BASE
First RID value of the local domain. The first Posix ID of the local domain will be
assigned to this RID, the second to RID+1 etc. See the online help of the idrange
CLI for details.

-U, --secondary-rid-base=SECONDARY_RID_BASE
Start value of the secondary RID range, which is only used in the case a user and a
group share numerically the same Posix ID. See the online help of the idrange CLI
for details.

-A, --admin-name=ADMIN_NAME
The name of the user with administrative privileges for this IPA server. Defaults
to 'admin'.

-a, --admin-password=password
The password of the user with administrative privileges for this IPA server. Will
be asked interactively if -U is not specified.

The credentials of the admin user will be used to obtain Kerberos ticket before
configuring cross-realm trusts support and afterwards, to ensure that the ticket contains
MS-PAC information required to actually add a trust with Active Directory domain via 'ipa
trust-add --type=ad' command.

--enable-compat
Enables support for trusted domains users for old clients through Schema
Compatibility plugin. SSSD supports trusted domains natively starting with version
1.9. For platforms that lack SSSD or run older SSSD version one needs to use this
option. When enabled, slapi-nis package needs to be installed and
schema-compat-plugin will be configured to provide lookup of users and groups from
trusted domains via SSSD on IPA server. These users and groups will be available
under cn=users,cn=compat,$SUFFIX and cn=groups,cn=compat,$SUFFIX trees. SSSD will
normalize names of users and groups to lower case.

In addition to providing these users and groups through the compat tree, this
option enables authentication over LDAP for trusted domain users with DN under
compat tree, i.e. using bind DN
uid=[email protected],cn=users,cn=compat,$SUFFIX.

LDAP authentication performed by the compat tree is done via PAM 'system-auth'
service. This service exists by default on Linux systems and is provided by pam
package as /etc/pam.d/system-auth. If your IPA install does not have default HBAC
rule 'allow_all' enabled, then make sure to define in IPA special service called
'system-auth' and create an HBAC rule to allow access to anyone to this rule on IPA
masters.

As 'system-auth' PAM service is not used directly by any other application, it is
safe to use it for trusted domain users via compatibility path.

EXIT STATUS
0 if the installation was successful

1 if an error occurred

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