This specifies the LDAP host names to connect to. The default value is localhost. Special formatting characters are permitted. Multiple host names can be specified, and in this case Radiator tries connecting each configured host individually until it succeeds. If a Host name begins with ipv6: the subsequent host names are interpreted as IPv6 addresses where possible, and Net::LDAP uses IPv6 to connect to the LDAP server. IPv6 may require IO::Socket::INET6, Socket6 or other IPv6 specific Perl modules depending on your Perl version.

Here are examples of using Host:

Host ldaphost.example.com

Same as above, but resolve the name to individual addresses before connecting:

# May resolve to multiple addresses.
# Implicitly sets SSLExpectedServerName to ldaphost.example.com for each address.
Host ldaphost.example.com
ResolveHost

When there are multiple Host values, connect to the first server that works:

# Connect to first available server
Host ldaphost1.example.org
Host ldaphost2.example.org
Host ldaphost3.example.org

IPv4 and IPv6 address can also be used. When TLS is enabled, we need to tell TLS library what is the expected name in each Host's server certificate:

# Server 10.20.30.11 has name ldaphost1.example.org in its certificate.
# Server 10.20.30.22 is named ldaphost2.example.org, respectively.
Host 10.20.30.11
Host 10.20.30.22

SSLExpectedServerName ldaphost1.example.org
SSLExpectedServerName ldaphost2.example.org