in reply to Re^2: Net::LDAP giving I/O Error
in thread Net::LDAP giving I/O Error

I'm not familiar with GSSAPI, but Tim Bishop's Blog has a discussion, and supposedly working code for this.

        ...it is unhealthy to remain near things that are in the process of blowing up.     man page for WARP, by Larry Wall

Replies are listed 'Best First'.
Re^4: Net::LDAP giving I/O Error
by dvl (Initiate) on Oct 11, 2016 at 20:37 UTC
    Thank you. My coworker found the fix, by looking at other scripts. 
    18c18
< my $ldap = Net::LDAP->new($dc, port => 636, scheme => 'ldaps') or di
+e "$@";
---
> my $ldap = Net::LDAP->new($dc) or die "$@";

    [download]
    i.e. reduce the parameters to the LDAP constructor. *shrug*
[reply]
[d/l]

In Section Seekers of Perl Wisdom