Msfconsole Commands  The msfconsole has many different command options to chose from.           back  Once you have finished working with a particular module, or if you  inadvertently select the wrong module, you can issue the 'back' command  to move out of the current context. This, however is not required. Just  as you can in commercial routers, you can switch modules from within  other modules. As a reminder, variables will only carry over if they are  set globally.    msf auxiliary( ms09_001_write ) > back  msf >        check  There aren't many exploits that support it, but there is also a  'check' option that will check to see if a target is vulnerable to a  particular exploit instead of actually exploiting it.    msf exploit( ms08_067_netapi ) > show options   Module options (exploit/windows/smb/ms08_067_netapi):     Name     Current Setting  Required  Description    ----     ---------------  --------  -----------    RHOST    172.16.194.134   yes   ...