SSH Reference Manual
•  hmac-sha1: HMAC-SHA1 (digest length=key length=20 bytes=160 bits) 
•  hmac-md5: HMAC-MD5 (digest length=key length=16 bytes=128 bits) 
•  hmac-sha1-96: first 96 bits of HMAC-SHA1 (digest length=12 bytes=96 bits, key length=20 bytes=160 bits) 
•  hmac-md5-96: first 96 bits of HMAC-MD5 (digest length=12 bytes=96 bits, key length=16 bytes=128 bits) 
If this option is not specified, the client will negotiate a cipher from list configured for the SSH2 server using the MACS 
parameter. 
-p port 
The port to connect to on the remote host. 
-C 
Requests compression of all data (including stdin, stdout, stderr, and data for forwarded connections). The compression 
algorithm is the same used by gzip. Compression is desirable on slow connections, but will only slow down things on 
fast networks. 
-o option 
Set a configuration option for the SSH client 
The following options are supported: 
•  BINDADDRESS=address 
The local address used for outgoing connections. Useful if the SSH2 process is configured with the unspecified 
address (0.0.0.0 or 0::0) for parameter INTERFACEOUT or multiple IP addresses are configured in 
INTERFACEOUT, the TCP/IP process is configured with more than one subnet and a specific local address 
needs to be used (e.g. due to firewall configuration restrictions). 
•  IDENTITY=keyname 
Use this option to select a specific KEY for authentication to the remote system. By default all KEYs that you 
have generated using the SSHCOM GENERATE KEY command will be presented to the remote host for 
publickey authentication. However, some servers will deny authentication after a maximum number of 
inacceptable keys are presented, which can create a problem if you have many keys. To overcome this problem, 
use the IDENTITY option to present only the key that has been advertised as authorized key to the target server. 
•  PORT=port 
The port to connect to on the remote host. This option has the same effect as the –p command line option. 
•  COMPRESSION=TRUE|FALSE 
Specify weather data compression should be enabled on the SSH session. This option has the same effect as the 
–C command line option. 
•  CIPHERS=ciphers 
Specify a comma-separated list of ciphers for encrypting the session. This option has the same effect as the –c 
command line option. 
•  MACS=macs 
Specify a comma-separated list of MAC algorithms. This option has the same effect as the –m command line 
option. 
•  USER=user 
Specify the user to log in as on the remote machine. This option has the same effect as the –l command line 
option or the user runtime parameter. 
•  AllowedAuthentications=methods 
222 • SSH and SFTP Client Reference  HP NonStop SSH Reference Manual 










