Shell Control Box
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Shell Control Box (SCB) is a device for controling and monitoring administrative protocols used for remote access or management in computer technology. SCB is a Linux based device developed by Balabit IT Security and based on Zorp technology. SCB inspects remote access protocols such as SSH, RDP, Telnet, or Vnc protocols. It can act as a transparent device (as a Router or a Network switch) an also in different non-transparent ways (jumpserver).
Functions
SCB controls only administrative protocols with the embedded application layer gateway (proxy) technology.
Access control at the connection layer
Enforced policy controls classical network access control mechanisms: source IP, destination IP/port and protocol enforcement by layer 7 protocol analysis. It also controls user IDs (eg. root or Administrator is prohibited) by classical
Advanced authentication and authorization
SCB supports gateway authentication, which is a two faktor authentication serverd by SCB: users initiate connections and they also have to login to SCB and enable their own connections.
SCB also supports four eyes priciple, when users who log in must differ from enabler user. It makes sure the user cannot log in without permission.
Channel Control
RDP and SSH protcols implements channels on the top of connection layer. Each SSH and RDP functions are performed in dedicated channels such as Shell is in Session shell channel or Drawing is the channel of Desktop forward in RDP. SCB impemets an advanced control function of
Audit and forensics tool
Inspected protocol content can be stored in Audit trail and replayed by the Audit Player tool.