SSH uses either DES or 3DES to encrypt the entire session to the PIX and as such, it was deemed safe to enable on the outside interface. Another feature that received less fanfare, SSH or Secure Shell, proved to be very important to Security Administrators who were tired of driving to the office to make changes to their PIX.
One of the most notable features of 5.2 was support for the new faster and more scalable PIX 525 Firewall. In 2000, Cisco introduced version 5.2 of the PIX OS. Although the PIX Firewall allows Telnet access to its CLI (command line interface), the PIX OS will not allow Telnet to hosts on the outside interface because of the threat of password interception. From 1995 until 2000, there was one feature missing that frustrated security administrators greatly: secure remote access.
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NTI’s flagship PIX firewall became the Cisco Secure PIX Firewall. began their first serious push into the Network Security market with the acquisition of NTI (Network Translation, Inc.).
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