Hi, Eliezer.
If you've locked yourself out of web UI, you can try to add a new admin user using [this guide])https://gluu.org/docs/gluu-server/4.2/operation/faq/#adding-admin-users). Then log in to web UI as new admin user and change your other admin's password.
To reset password on existin account, you can apply LDIF file like this:
```
dn: DN-OF-ADMIN-USER
changetype: modify
replace: userPassword
userPassword: SOMENEWPASSWORD
```
Save it to `reset_admin_pass.ldif`, then apply with this: `# /opt/opendj/bin/ldapmodify -h 127.0.0.1 -p 1636 -Z -X -D 'cn=directory manager' -w LDAP_ROOT_PASS -f reset_admin_pass.ldif`
You need to figure out DN of your admin record first, and learn your `LDAP_ROOT_PASS` (by default it's same as default admin pass right after install)