Hello Help! I'm trying to authenticate our customers to LDAP, but its not working. Everything has been installed properly. We keep getting the following error: Can't connect to (our_hostname): IO::Socket::INET: connect: Unknown error at E:/OTRS/otrs//Kernel/System/CustomerAuth/LDAP.pm line 149. This is our code: #Enable LDAP authentication for Customers / Users $Self->{'Customer::AuthModule'} = 'Kernel::System::CustomerAuth::LDAP'; $Self->{'Customer::AuthModule::LDAP::Host'} = 'our_hostname'; $Self->{'Customer::AuthModule::LDAP::BaseDN'} = 'ou=users,dc=xxxxx,dc=com'; where xxxxx=our_domain $Self->{'Customer::AuthModule::LDAP::UID'} = 'sAMAccountName'; #The following is valid but would only be necessary if the #anonymous user do NOT have permission to read from the LDAP tree $Self->{'Customer::AuthModule::LDAP::SearchUserDN'} = 'LDAP'; $Self->{'Customer::AuthModule::LDAP::SearchUserPw'} = 'Help_Password'; #CustomerUser #(customer user database backend and settings) $Self->{CustomerUser} = { Module => 'Kernel::System::CustomerUser::LDAP', Params => { Host => 'our_hostname', BaseDN => 'OU=users,DC=xxxxx,DC=com', where xxxxx=ourdomain SSCOPE => 'sub', UserDN =>'LDAP', UserPw => 'Help_Password', }, # customer unique id CustomerKey => 'sAMAccountName', # customer # CustomerID => 'mail', CustomerUserListFields => ['sAMAccountName', 'cn', 'mail'], CustomerUserSearchFields => ['sAMAccountName', 'cn', 'mail'], CustomerUserSearchPrefix => '', CustomerUserSearchSuffix => '*', CustomerUserSearchListLimit => 250, CustomerUserPostMasterSearchFields => ['mail'], CustomerUserNameFields => ['givenname', 'sn'], Map => [ # note: Login, Email and CustomerID needed! # var, frontend, storage, shown, required, storage-type #[ 'UserSalutation', 'Title', 'title', 1, 0, 'var' ], [ 'UserFirstname', 'Firstname', 'givenname', 1, 1, 'var' ], [ 'UserLastname', 'Lastname', 'sn', 1, 1, 'var' ], [ 'UserLogin', 'Login', 'sAMAccountName', 1, 1, 'var' ], [ 'UserEmail', 'Email', 'mail', 1, 1, 'var' ], [ 'UserCustomerID', 'CustomerID', 'mail', 0, 1, 'var' ], [ 'UserPhone', 'Phone', 'telephonenumber', 1, 0, 'var' ], #[ 'UserAddress', 'Address', 'postaladdress', 1, 0, 'var' ], #[ 'UserComment', 'Comment', 'description', 1, 0, 'var' ], ], }; Please Help! Thanks.