After implementing the desired socket activated responders I cannot login as users via SSH, but can su as them from a root session. User resolution and sssctl still work.
config_file_version = 2
# services = nss,pam,pac,ssh,autofs,sudo
domains =
dvc.darkvixen.com[nss]
filter_users = root,bin,daemon,adm,lp,sync,shutdown,halt,mail,operator,games,ftp,nobody,systemd-network,dbus,polkitd,sshd,postfix,chrony,sssd,apache,rpc,rpcuser,nfsnobody
filter_groups = root,bin,daemon,sys,adm,tty,disk,lp,mem,kmem,wheel,cdrom,mail,man,dialout,floppy,games,tape,video,ftp,lock,audio,nobody,users,utmp,utempter,input,systemd-journal,systemd-network,dbus,polkitd,ssh_keys,sshd,postdrop,postfix,chrony,printadmin,cgred,sssd,apache,rpc,rpcuser,nfsnobody
[pam]
pam_account_expired_message = "Account expired, please contact help desk."
pam_account_locked_message = "Account locked, please contact help desk."
pam_verbosity = 3
[pac]
[ssh]
[autofs]
[sudo]
[ifp]
[domain/
dvc.darkvixen.com]
id_provider = ad
access_provider = ad
cache_credentials = true
override_homedir = /home/%d/%u
override_shell = /bin/bash
override_gid = 1727401151
ad_access_filter = DOM:DVC.DARKVIXEN.COM:(|(memberOf=CN=DARKVIXEN241_G,OU=LDAP,OU=SVS,DC=dvc,DC=darkvixen,DC=com)(memberOf=CN=DARKVIXEN_HPC_ADMIN_G,OU=CLUSTERS,OU=SVS,DC=dvc,DC=darkvixen,DC=com))
Nothing remarkable shows up in the logs after issuing "sssctl debug-level 7" and curiously there are no sssd_pam or sssd_pac log files created.