SSH Reference Manual
•  If you added a DEFINE =TCPIP^PROCESS^NAME to the TACL environment you use to start SSH2, this 
setting will override the SUBNET parameter. 
•  If you use parallel library TCPIP and want to share identical ports across multiple instances of SSH2, you need 
to add an identical DEFINE to all instances sharing that port as in the following example: 
ADD DEFINE =PTCPIP^FILTER^KEY, class map, file A1234 
•  If parameter is set via PARAM and a comma separated list is defined, then the list must be enclosed in double 
quotes. 
See also 
INTERFACE, INTERFACEOUT
SUPPRESSCOMMENTINSSHVERSION 
Use this parameter to suppress the 'comments' field in SSH protocol version exchanged between ssh server and ssh 
client. The format of the ssh protocol version is defined in RFC 4253. The 'comments' field is defined as optional. 
Parameter Syntax 
SUPPRESSCOMMENTINSSHVERSION TRUE|FALSE 
Arguments 
 TRUE|FALSE 
Specifies whether comment part in the ssh protocol version is suppressed or not: 
o  TRUE: Comment part will be suppressed. 
o  FALSE: Comment part will not be suppressed. 
Default 
If omitted, the SSH2 process will include the comment part as done in the previous release, i.e. default value is FALSE.  
Considerations 
•  RFC 4253 defines that client and server ssh protocol version string must be exchanged in clear text. This could 
give away information about implementation details, which might be seen as a vulnerability. Using this 
parameter only the optional part of the protocol version string can be suppressed. 
•  On the other hand, the comments part may indicate specific capabilities of an implementation, i.e. can be 
helpful information for the remote system. 
TCPIPHOSTFILE 
Use this parameter as an alternative to setting a DEFINE =TCPIP^HOST^FILE. 
Parameter Syntax 
TCPIPHOSTFILE filename 
Arguments 
 filename 
Specifies the name of the TCPIP host file to be used by SSH2. The file name will override the value of the 
DEFINE =TCPIP^HOST^FILE parameter, which may have been passed to SSH2 at startup. 
* 
Indicates no host file will be set. However, any DEFINE =TCPIP^HOST^FILE passed to SSH2 at startup will 
remain in effect. 
HP NonStop SSH Reference Manual  Configuring and Running SSH2 • 123 










