I had already rebooted before posting. Didn’t fix things.
To answer to your suggestion, this is the output of the 3 commands:
$ systemctl status slapd
? slapd.service - LSB: OpenLDAP standalone server (Lightweight Directory Access Protocol)
Loaded: loaded (/etc/init.d/slapd; generated)
Active: active (running) since Wed 2019-08-14 18:13:25 CEST; 2h 38min ago
Docs: man:systemd-sysv-generator(8)
Process: 736 ExecStart=/etc/init.d/slapd start (code=exited, status=0/SUCCESS)
Tasks: 6 (limit: 2304)
Memory: 11.5M
CGroup: /system.slice/slapd.service
└─839 /usr/sbin/slapd -h ldap:/// ldapi:/// -g openldap -u openldap -F /etc/ldap/slapd.d
? nslcd.service - LSB: LDAP connection daemon
Loaded: loaded (/etc/init.d/nslcd; generated)
Active: active (running) since Wed 2019-08-14 18:35:19 CEST; 2h 16min ago
Docs: man:systemd-sysv-generator(8)
Process: 854 ExecStart=/etc/init.d/nslcd start (code=exited, status=0/SUCCESS)
Tasks: 6 (limit: 2304)
Memory: 2.0M
CGroup: /system.slice/nslcd.service
└─932 /usr/sbin/nslcd
$ systemctl status nscd
? nscd.service - Name Service Cache Daemon
Loaded: loaded (/lib/systemd/system/nscd.service; enabled; vendor preset: enabled)
Active: active (running) since Wed 2019-08-14 18:12:57 CEST; 2h 39min ago
Process: 297 ExecStart=/usr/sbin/nscd (code=exited, status=0/SUCCESS)
Main PID: 305 (nscd)
Tasks: 11 (limit: 2304)
Memory: 1.3M
CGroup: /system.slice/nscd.service
└─305 /usr/sbin/nscd
The ‘?’ character instead of the usual colored dot in the beginning of systemctl’s output is weird though.