I have the same enviroment. Authenticating using LDAP users works fine
using nss_ldap in nsswitch.conf, but sudo and su does not work.
I've made this small C program as a test case:
#include <unistd.h>
#include <stdio.h>
#include <sys/types.h>
void main(void) {
setreuid(0, getuid());
printf("ID: %d\n", getuid());
execv("/bin/sh", NULL);
}
Compiled is as root, run chmod +s on it and copied to /usr/bin.
Running it with an LDAP user gives me a shell as root. So I believe the
problem really is sudo. I have no idea what nscd does that makes sudo
work.
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