On Thu, 15 Jun 2023, lejeczek via FreeIPA-users wrote:
On 15/06/2023 15:33, Rob Crittenden wrote:
lejeczek via FreeIPA-users wrote:
Hi guys.
Are there any ports/services which clients do not need and which can be
exclusively allowed only to/between masters/replicas access?
This has been asked and answered many times on the list.
See
https://lists.fedoraproject.org/archives/list/[email protected]/thread/5OFGFDA2INO6GVNNHGCUHYQDALZMS4JO/#W3RMF2SSARWAASYW2KI64T2DDFGXBSXI
for example.
rob
Many thanks. Might I dare to suggest - there are not many as complex
as IPA programs(?) accompanied by documentation as good IPA is - an
addition? of something like ipa-firewall,
IPA is bit "stingy" on that front and a short & concise (with perhaps
a short highlight on: master <-- master VS <--client -- if there are
differences which I failed to find explained in those links) -- small
man-page will go a long way, I have no doubts.
Everybody knows that admins worth their souls go there first -
sroogling can't compare - and nobody can put a better manual than the
authors, obviously.
There are multiple places in the RHEL IdM documentation that talks about
protocols flow and firewalls/ports. For example, below are sections
related to integration with Active Directory:
Troubleshooting client access to services in the other forest:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/installing_identity_management/installing-trust-between-idm-and-ad_installing-identity-management#assembly_troubleshooting-client-access-to-services-in-the-other-forest_installing-trust-between-idm-and-ad
Ports required for communication between IdM and AD:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/installing_identity_management/installing-trust-between-idm-and-ad_installing-identity-management#ports-required-for-communication-between-idm-and-ad_installing-trust-between-idm-and-ad
There are also sections related to ports for normal installation:
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/installing_identity_management/preparing-the-system-for-ipa-server-installation_installing-identity-management#port-requirements-for-idm_preparing-the-system-for-ipa-server-installation
These all were taken from my original draft that I shared here multiple
times:
https://vda.li/drafts/firewall-considerations.txt
regards & thanks, L.
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/ Alexander Bokovoy
Sr. Principal Software Engineer
Security / Identity Management Engineering
Red Hat Limited, Finland
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