Six things you should know about network endpoint
security
"We as IT technicians are going about network security
the wrong way," says Peter Green, director of IT at Neumont University in South
Jordan, Utah.
"We are trying to put a box around our networks, when
every night, a large portion of those networks leave the building, and in my
case, [during every college vacation], those pieces scatter across 42 states.
You can't put a box around that. Neumont's environment is an
extreme example for several reasons:
- The university offers only one undergraduate major -- a
bachelor of science degree in computer science -- so its staff and student
body are technically very sophisticated and can "circumvent any
controls or security we can put in place and install whatever they
want," Green says.
- Everybody carries laptops -- Lenovo ThinkPads. "We
are completely mobile and wireless," Green says. "During the
day, we have a huge network infrastructure, and at night, three-quarters
of that network walks out the door."
- Because of the focus on mobility and wireless
connectivity, the college has 80 Aruba A-band access points on two floors,
connecting 400 laptops to 35 servers, four of them Senforce Technologies
Inc. endpoint security and intelligent network access control (INAC)
servers, over two networks. "A band works well particularly for
classrooms because we can crank the power down to zero and pack a lot of
access points into a small area," Green says.
- Students and instructors spend large amounts of time away
from campus and take their ThinkPads with them. "If an instructor
spends three months in Ireland, who knows what happens to his
laptop?"
- The university has a constant stream of visitors, many of
them from companies in its enterprise partnership program, which gives
students experience working on real projects with professionals. These
visitors bring their own laptops on campus and need connectivity to their
companies and to the students in their workgroups.
- The university, however, has the same concerns as any
other large organization. It wants a standard image across all of its
laptops to facilitate maintenance, and "we are dealing with highly
sensitive information on our network -- grades, projects for enterprise
partners, personal information about students and staff," Green says.
"Our endpoint security discussion started when we got
an excited call from our Cisco rep about an acquisition," Green says.
"As a result, we had a conversation with Cisco about network access
controls that fascinated me. To me, this is the future of the network. It made
me realize that we have been looking at security from the wrong
perspective."
But, he says, "when we asked about different features,
the answer was always, 'We are working on that.' So when Senforce approached us
with a fully based solution, we didn't look much further. This is so new that
there isn't much out there, and Senforce has endpoint security and INAC
together, which is great."
However, as with any new technological approach, endpoint
security has its trade-offs, both in terms of money and changes in how IT
approaches issues.
Green says that users should consider the following before
committing to an endpoint security system:
- This approach requires a more intelligent network, which
usually means investment in extra hardware and software beyond the
security package itself. "Many companies would have a lot of question
marks. For us, the network is the center of our architecture, so we knew
it was the right way for us to go," says Green.
- "It fundamentally changes how you think about
security," he says. "You are thinking less about internal
routing and firewalling and more about individuals and clients, nodes and
endpoints."
- Visitor isolation is absolutely necessary and a big
benefit of endpoint security. "Before we installed Senforce,
wall-mounted plugs scared me. I didn't want a visitor coming in, plugging
into the network, and accessing everything," Green says. "With INAC,
who cares? If we cannot identify the user, then all we provide is a pipe
to the Internet and the ability to initialize a VPN to their company. We
find that this is the first thing visitors want in any case, and by the
time our industry partners are ready to work with students, they are
registered, and the network has ensured that they meet our standards for
virus control and security."
- A major danger of bleeding-edge technologies is that two
years later, they can strand you with a proprietary system from a small
vendor that lacks the resources to continue development, and ultimately
require an expensive forklift upgrade to whatever standard has evolved.
"One thing we like about Senforce is that its technology is already
installed at DARPA, the Department of Defense and other leading-edge
organizations," Green says. "That makes me feel pretty
comfortable with this technology."
- Leading-edge technology can challenge the IT staff's
ability to adapt and can require extra time and effort. "We spent a
year on this, but we believe the investment is worthwhile for our highly
mobile environment," Green says.
- Endpoint security requires active user involvement, at
least to the point of responding when a pop-up comes on the screen
informing the user that his laptop is quarantined until he upgrades his
virus definitions or turns on his laptop's personal firewall. "We
need to be sure our end users have that same emotional investment in the
security of the network that we do. If they don't, they will see meeting
security requirements as one more problem keeping them from their
data," Green says. So user education is important. "We do get
calls from people asking what these pop-ups are all about," he says.
Explaining what seems obvious to annoyed users sometimes takes patience,
so the help desk needs to be ready for those calls. "We also get
calls from users who say, 'This is great. I can see exactly what I need to
update to keep my system secure,'" Green says.
Overall, Green says, "We are in an enviable position in
that we have the best people in the industry working for us, who know
encryption and network access. This approach just makes sense for us."
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