SSH Reference Manual

• LOGFILE, LOGLEVELFILE, LOGFILERETENTION
• "Log Messages" in the "Monitoring and Auditing" chapter.
LOGMEMORY
Use this parameter to include SSH2 memory usage statistics in the log output at regular intervals.
Parameter Syntax
LOGMEMORY number_of_ios
Arguments
number_of_ios
A number that represents how many I/O operations are to be conducted before SSH2 includes its memory usage
in the log output
Default
The default is 0, meaning that memory usage will not be logged.
Considerations
• Provides an easy way to correlate between memory usage of SSH2 and events in the log output. Do not use if
memory usage of SSH2 is not of interest to you.
MACS
Use this parameter to specify which message authentication codes (MAC) are admissible for the SSH2 server.
Parameter Syntax
MACS mac [, mac, ...]
Arguments
mac
Specifies a MAC. Currently the following MACs are supported by SSH2:
o hmac-sha1: HMAC-SHA1 (digest length=key length=20 bytes=160 bits)
o hmac-md5: HMAC-MD5 (digest length=key length=16 bytes=128 bits)
o hmac-sha1-96: first 96 bits of HMAC-SHA1 (digest length=12 bytes=96 bits, key length=20 bytes=160
bits)
o hmac-md5-96: first 96 bits of HMAC-MD5 (digest length=12 bytes=96 bits, key length=16 bytes=128 bits)
Considerations
For details about the MACs listed above, please refer to standard SSH documentation, such as the available RFCs.
Default
If this parameter is omitted, SSH2 will accept all MACs listed above.
Example
MACS hmac-sha1-96
This will enforce the use of the hmac-sha1-96 MAC algorithm.
100 • Configuring and Running SSH2 HP NonStop SSH Reference Manual