# 'check_ftp' command definition define command{ command_name check_ftp command_line /usr/lib/nagios/plugins/check_ftp -H '$HOSTADDRESS$' '$ARG1$' } #### # use these checks, if you want to test IPv4 connectivity on IPv6 enabled systems #### # 'check_ftp_4' command definition define command{ command_name check_ftp_4 command_line /usr/lib/nagios/plugins/check_ftp -H '$HOSTADDRESS$' -4 '$ARG1$' }