大家帮我看看我的snort启动是怎么回事?

再见理想

第一次安装snort,不知道怎么弄,请教高手!!!
帮我看看到底是怎么回事,谢谢.

[root@zjnx /]# /usr/local/bin/snort start -A fast

   ,,_     -*> Snort! <*-
  o"  )~   Version 2.8.0 (Build 67)  
   ''''    By Martin Roesch & The Snort Team: http://www.snort.org/team.html
           (C) Copyright 1998-2007 Sourcefire Inc., et al.
           Using PCRE version: 7.4 2007-09-21

USAGE: /usr/local/bin/snort [-options] <filter options>
Options:
        -A         Set alert mode: fast, full, console, test or none  (alert file alerts only)
                   "unsock" enables UNIX socket logging (experimental).
        -b         Log packets in tcpdump format (much faster!)
        -B <mask>  Obfuscated IP addresses in alerts and packet dumps using CIDR mask
        -c <rules> Use Rules File <rules>
        -C         Print out payloads with character data only (no hex)
        -d         Dump the Application Layer
        -D         Run Snort in background (daemon) mode
        -e         Display the second layer header info
        -f         Turn off fflush() calls after binary log writes
        -F <bpf>   Read BPF filters from file <bpf>
        -g <gname> Run snort gid as <gname> group (or gid) after initialization
        -G <0xid>  Log Identifier (to uniquely id events for multiple snorts)
        -h <hn>    Home network = <hn>
        -H         Make hash tables deterministic.
        -i <if>    Listen on interface <if>
        -I         Add Interface name to alert output
        -k <mode>  Checksum mode (all,noip,notcp,noudp,noicmp,none)
        -K <mode>  Logging mode (pcap[default],ascii,none)
        -l <ld>    Log to directory <ld>
        -L <file>  Log to this tcpdump file
        -M         Log messages to syslog (not alerts)
        -m <umask> Set umask = <umask>
        -n <cnt>   Exit after receiving <cnt> packets
        -N         Turn off logging (alerts still work)
        -o         Change the rule testing order to Pass|Alert|Log
        -O         Obfuscate the logged IP addresses
        -p         Disable promiscuous mode sniffing
        -P <snap>  Set explicit snaplen of packet (default: 1514)
        -q         Quiet. Don't show banner and status report
        -r <tf>    Read and process tcpdump file <tf>
        -R <id>    Include 'id' in snort_intf<id>.pid file name
        -s         Log alert messages to syslog
        -S <n=v>   Set rules file variable n equal to value v
        -t <dir>   Chroots process to <dir> after initialization
        -T         Test and report on the current Snort configuration
        -u <uname> Run snort uid as <uname> user (or uid) after initialization
        -U         Use UTC for timestamps
        -v         Be verbose
        -V         Show version number
        -w         Dump 802.11 management and control frames
        -X         Dump the raw packet data starting at the link layer
        -y         Include year in timestamp in the alert and log files
        -Z <file>  Set the performonitor preprocessor file path and name
        -?         Show this information
<Filter Options> are standard BPF options, as seen in TCPDump
Longname options and their corresponding single char version
   --logid <0xid>                  Same as -G
   --perfmon-file <file>           Same as -Z
   --pid-path <path>               Specify the path for the Snort PID file
   --snaplen <snap>                Same as -P
   --help                          Same as -?
   --version                       Same as -V
   --alert-before-pass             Process alert, drop, sdrop, or reject before pass, default is pass before alert, drop,...
   --treat-drop-as-alert           Converts drop, sdrop, and reject rules into alert rules during startup
   --process-all-events            Process all queued events (drop, alert,...), default stops after 1st action group
   --dynamic-engine-lib <file>     Load a dynamic detection engine
   --dynamic-engine-lib-dir <path> Load all dynamic engines from directory
   --dynamic-detection-lib <file>  Load a dynamic rules library
   --dynamic-detection-lib-dir <path> Load all dynamic rules libraries from directory
   --dump-dynamic-rules <path>     Creates stub rule files of all loaded rules libraries
   --dynamic-preprocessor-lib <file>  Load a dynamic preprocessor library
   --dynamic-preprocessor-lib-dir <path> Load all dynamic preprocessor libraries from directory
   --dump-dynamic-preproc-genmsg <path>  Creates gen-msg.map files of all loaded preprocessor libraries
   --create-pidfile                Create PID file, even when not in Daemon mode
   --nolock-pidfile                Do not try to lock Snort PID file
   --disable-inline-initialization Do not perform the IPTables initialization in inline mode.
   --loop <count>                  In combination with the -r <tf> option, this will read the tcpdump file continuously
                                   for <count> times.  A value of 0 will read the pcap until Snort is killed.
ERROR:

Uh, you need to tell me to do something...

Fatal Error, Quitting..
[root@zjnx /]#

再见理想

哦忘记告诉大家了我的snort是2.8版本的,但规则是2.4版本的,这有关系吗?????