"When the right technology doesn't exist or isn't available at
the right price, many large companies get creative and build their
own custom systems, such as routers, firewalls or VPN gear.
"Linux and open source software is proving to be a valuable tool
for businesses that have taken the build-it-yourself approach when
it comes to some network systems. Many say the software included in
Linux and in some free software packages is as good or better than
commercial offerings and costs less to deploy.
"When Rochester Midland was looking to move frame relay to a
multisite IP Security (IPSec)-based VPN last year, Tony
Karakashina, then a network administrator for the company, was
charged with rolling out the network..."