"Error: LDAP extension is not installed".
"Error: LDAP extension is not installed" while clicking ldap tab
This error occurs if php-ldap extension is missing in your server. Make sure you get it installed by following the steps given below
centos
root@gateway:~# yum install php-ldap
ubuntu
root@gateway:~# apt-get install php5-ldap/php7-ldap
Debian
root@gateway:~# apt-get install php7.4-ldap