This is a simplification and the names have been changed to protect the innocent.
The assets:
Active Directory Domains
corp.lan
saas.lan
User accounts
[email protected]
[email protected]
Servers
dc.corp.lan (domain controller)
dc.
saas.lan (domain controller)
server.
saas.lan
A one way trust exists between the domains so user accounts in corp.lan and log into servers in
saas.lan
No firewall between dc.corp.lan and dc.
saas.lan
server.
saas.lan is in a firewalled zone and a set of rules exist so it can talk to dc.
saas.lan
I can log into server.
saas.lan with
[email protected] - But I don't understand how it works. If I watch firewall logs, I see a bunch of login chatter between server.
saas.lan and dc.
saas.lan
I also see a bunch of DROPPED chatter between server.
saas.lan and dc.corp.lan. Presumably, this is because server.
saas.lan is trying to authenticate
[email protected] But no firewall rule exists that allows communication between these hosts.
However,
[email protected] can log in successfully to server.
saas.lan - Once logged in, I can "echo %logonserver%" and get \dc.corp.lan.
So.... I am a little confused how the account actually gets authenticated. Does dc.
saas.lan eventually talk to dc.corp.lan after server.
saas.lan can't talk to dc.corp.lan?
Just trying to figure out what needs to be changed/fixed/altered.