Unable to login with Domain users in the Suse linux Post: 302474606

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Operating Systems Linux Unable to login with Domain users in the Suse linux Post 302474606 by cjcox on Wednesday 24th of November 2010 07:05:04 PM

11-24-2010

Registered User

In all fairness, Windows DNS is fundamentally broken (and IMHO beyond repair) with regards to non-Windows DHCP clients. With that said, what is needed is the ability to send a GSSAPI signed update message to the Windows DNS server... otherwise you have to configure the Windows DNS server to allow insecure updates or updates by particular IP addresses (e.g. addresses you're likely to get via DHCP).

If you REALLY, REALLY want this to work well... rebuild your Windows DC/AD Server and tell it NOT to be a DNS or DHCP, let Linux handle DNS/DHCP via ISC DHCP and BIND and configure it so that it allows the DC/AD Servers to update ONLY the "_" SRV zones and secure that by IP address... the ISC DHCP server will make the DNS updates on behalf of the client using TSIG security (a published standard that Microsoft REFUSES to support).

The very latest versions of BIND support GSSAPI style updates... but there's just something evil about having EVERY client on the network update the DNS server... IMHO, it's smarter to give that task to the DHCP server. Even so, I'm not sure what client support there is for sending GSSAPI messages. With that said, you CAN manage your zones dynamically using BIND+Linux, you'd just want to secure that via TSIG or IP (even just the DNS server itself) for updates apart from the DHCP Server.

I guess it's somewhat complicated... but pretty easy if you know how DNS and DHCP work... difficult if you ASSUME that Microsoft's versions work.. because they DO NOT... at least not with non-Windows hosts.

cjcox

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LEARN ABOUT MOJAVE

net::dns::mailbox

Net::DNS::Mailbox(3)					User Contributed Perl Documentation				      Net::DNS::Mailbox(3)

NAME

       Net::DNS::Mailbox - DNS mailbox representation

SYNOPSIS

	   use Net::DNS::Mailbox;

	   $mailbox = new Net::DNS::Mailbox('user@example.com');
	   $address = $mailbox->address;

DESCRIPTION

       The Net::DNS::Mailbox module implements a subclass of DNS domain name objects representing the DNS coded form of RFC822 mailbox address.

METHODS

   new
	   $mailbox = new Net::DNS::Mailbox('John.Doe@example.com');
	   $mailbox = new Net::DNS::Mailbox('John Doe <j.doe@example.com>');

       Creates a mailbox object which represents the DNS domain encoded form of the mail address specified by the character string argument.

       The argument string consists of printable characters from the 7-bit ASCII repertoire.

   address
	   $address = $mailbox->address;

       Returns a character string containing the RFC822 mailbox address corresponding to the encoded domain name representation described in
       RFC1035 section 8.

DOMAIN NAME COMPRESSION AND CANONICALISATION

       The Net::DNS::Mailbox1035 and Net::DNS::Mailbox2535 subclass packages implement RFC1035 domain name compression and RFC2535
       canonicalisation.

COPYRIGHT

       Copyright (c)2009,2012 Dick Franks.

       All rights reserved.

       This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself.

SEE ALSO

       perl, Net::DNS, Net::DNS::DomainName, RFC822, RFC1035, RFC5322

perl v5.18.2							    2014-01-16						      Net::DNS::Mailbox(3)