![Chapter 6. Ports required for communication between IdM and AD Red Hat Enterprise Linux 9 | Red Hat Customer Portal Chapter 6. Ports required for communication between IdM and AD Red Hat Enterprise Linux 9 | Red Hat Customer Portal](https://access.redhat.com/webassets/avalon/d/Red_Hat_Enterprise_Linux-9-Installing_trust_between_IdM_and_AD-en-US/images/fc93488580ceb829bd9e8bf2379ea978/231_RHEL_troubleshooting_cross-forest_0422_firewall.png)
Chapter 6. Ports required for communication between IdM and AD Red Hat Enterprise Linux 9 | Red Hat Customer Portal
![Question About Active Directory authentication port. - Discussions - Sophos Firewall - Sophos Community Question About Active Directory authentication port. - Discussions - Sophos Firewall - Sophos Community](https://community.sophos.com/resized-image/__size/320x240/__key/communityserver-discussions-components-files/126/1447.pastedimage1554458418998v2.png)
Question About Active Directory authentication port. - Discussions - Sophos Firewall - Sophos Community
Query against port 389 of Microsoft Active Directory gets flummoxed by referrals · Issue #4 · proftpd/mod_ldap · GitHub
![From the Field: The case of the unreachable forest on a domain-joined Azure AD Connect installation - The things that are better left unspoken From the Field: The case of the unreachable forest on a domain-joined Azure AD Connect installation - The things that are better left unspoken](https://dirteam.com/sander/wp-content/uploads/sites/2/2019/10/CaseAzureADConnectForest2.jpg)