nanog mailing list archives

Re: Access and Session Control System?


From: Bruce Pinsky <bep () whack org>
Date: Thu, 01 Sep 2011 22:29:38 -0700

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Jones, Barry wrote:

Hello all. I am looking at a variety of systems/methods to provide
(vendor, employee) access into my dmz's. I want to reduce the FW rule
sets and connections to as minimal as possible. And I want the accessing
party to only get to the destination I define (like a fw rule).

When I refer to access, I'm referring to the ability of a vendor or
employee to perform maintenance tasks on a server(s). The server(s) will
be running apps for doing different tasks - such as Shavlik, etc..,
(patching, reports, logging, etc..), so I am envisioning allowing an
outside vendor/employee (from the internet or corp. net) to RDP or SSH
to a given Windows or Unix based machines, then perform their
application work from that jumping off point - kind of like a terminal
server; but I'd like to control and audit the sessions as well.

Overall, I can allow a host/port through the FW to a single host, but I
wanted to be able to do the session management and endpoint controls.
FW's are ok, but you know as well as I that I now deal with lots of
rules sets. And I need to also authenticate the user.

We are a couple smaller facilities (150 hosts each) and I need to be
able to control and audit the sessions when requested. I have considered
doing a meetingplace server, then providing escorted access for them, or
doing just the FW and a "jump" host - but need the endpoint and session
solution, or just using VPN - but don't want to install a host on the
vendor machines. I also have looked at a product called EDMZ - wondered
if anyone had experience with it?

And did I say I wanted to keep it as simple as possible? :-) It's been a
few years since I've done hands-on networking work, so excuse the
long-winded letter. Feel free to email me directly too.


The Cisco ASA firewall/VPN appliance with SSLVPN can provide the kind of
control you are asking for.  You can customize for different connection
profiles that are based individuals and/or groups that specify where they
can connect to and what types of connection protocols can be used.

- -- 
=========
bep

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