SSH Reference Manual
SSHAUTOKEXBYTES 
Use this parameter to control the frequency of automatic key re-exchange in SSH sessions. 
Parameter Syntax 
SSHAUTOKEXBYTES bytes 
Arguments 
 bytes 
Provides a number representing the amount of bytes after which a key re-exchange should be initiated. A value 
of 0 disables key re-exchange based on data volume. 
Default 
The default is 1073741824 (1GB). This is the value recommended in RFC 4253. 
See also 
SSHAUTOKEXTIME
SSHAUTOKEXTIME 
Use this parameter to control the frequency of automatic key re-exchange in SSH sessions. 
Parameter Syntax 
SSHAUTOKEXTIME seconds 
Arguments 
 seconds 
Specifies the intervals between key re-exchanges in seconds. A value of 0 disables key re-exchange based on 
time intervals. 
Default 
The default is 3600 (1 hour). This is the value recommended in RFC 4253. 
See also 
SSHAUTOKEXBYTES
SSHCTL 
Use this parameter to specify the filename of the user database file.  
Parameter Syntax 
SSHCTL filename 
Arguments 
 filename 
Specifies the name of the user database file. 
Considerations 
•  The user data base stores information about remote users accessing the NonStop system. The user database is 
stored in a single ENSCRIBE file and maintained through the SSHCOM command interpreter. For more details 
of the user database, please see the "The SSH User Database" chapter. 
HP NonStop SSH Reference Manual  Configuring and Running SSH2 • 119 










