User guide

Chapter 3 - Additional Features
User Guide 125
Step 3: Create, save, and download the common configuration.
Create and save the common configuration file on the server, then download it
(probably using scp) to each unit. Make sure to put it in the directory set in the
pslave.conf file (/etc/portslave in the example).
Step 4: Execute the command signal_ras hup on each unit again.
Step 5: Test each unit.
If everything works, add the line /etc/portslave/TScommon.conf to the
/etc/config_files file.
Step 6: Save the file and close it.
Step 7: Execute the saveconf command.
Enhanced Clustering
With Enhanced Clustering, the CAS ports in the slave box can be configured as ssh or telnet
and can have any type of authentication available. Authentication is performed in the Slave
and not in the Master anymore. Additionally, the Master no longer needs to be the default
gateway for all Slave boxes.
Enhanced clustering is available on implementations running Linux 2.4.x versions or newer.
This new implementation is based on “iptables/nat” which is only available in these higher
versions of Linux.
Enhanced Clustering has improved performance and security. Performance is greatly
increased because only the NAT translation is performed on the Master box. The Master
doesn't open an intermediary TCP connection with the Slave box. Also if ssh encryption and
decryption is desired, it is performed on the Slave.
Note: The included file /etc/portslave/TScommon.conf cannot contain another
include file (i.e., the parameter conf.include must not be defined).
Also, <max ports of BLACK BOX ® Advanced Console Server> + N(+) is done
same way as serial port.