In most out-of-band management applications, a console server is connected to a secondary network, cellular router or wireless router and deployed at a remote site in order to allow remote access to console port command functions when primary network communication is not available. This works well in most cases, but if out-of-band access via both Ethernet and console port is required, a console server that supports reverse SSH connections can be used in place of a basic console server.
Archive for the ‘reverse SSH’ Category
A Console Server with Reverse SSH Capabilities Provides Additional Options for Out-of-Band CommunicationFriday, May 1st, 2015
Isolated LANs are often found in applications where either the remote nature of the site makes contact via outside network impractical and in applications where an outside network connection to the LAN might jeopardize network security. In cases like this, one of the few options for outside maintenance access to devices on the isolated LAN is often a console server that supports both dial-up access and the ability to create reverse SSH connections.
In addition to providing a secure, encrypted alternative to Telnet communication, SSH (or Secure Shell Protocol,) can also be used for communication with remote devices located at distant network equipment facilities. Reverse SSH commands can simplify the process of communicating with devices protected by firewalls and also allow communication with isolated LAN segments that are normally only accessible via dial-up or local command port.