I am building 3 different forest on the same LAN. I am not going to build a forest and have parent and child trusts. NO.
Say I have forests A, B and C. Forest A/B are have a 2-way tree-root transitive trust and forests B/C also have a 2-way tree-root transitive trust.
Are users in Forest A able to access resource in forest C and vice versa? (considering the right security is provided)