0 dynamic rule loaded in snort

[bz Os via Snort-sigs <snort-sigs () lists snort org>]

 hello every body i am using snort as ids and when i run snort as ids i
have WARNING: /home/olive/Desktop/rules/malware-cnc.rules(3174) GID 1 SID
34050 in rule duplicates previous rule. Ignoring old rule.

WARNING: /home/olive/Desktop/rules/malware-cnc.rules(3175) GID 1 SID 34049
in rule duplicates previous rule. Ignoring old rule.

WARNING: /home/olive/Desktop/rules/malware-cnc.rules(3176) GID 1 SID 34047
in rule duplicates previous rule. Ignoring old rule.

WARNING: /home/olive/Desktop/rules/malware-cnc.rules(3255) GID 1 SID 29616
in rule duplicates previous rule. Ignoring old rule.

WARNING: /home/olive/Desktop/rules/malware-cnc.rules(3256) GID 1 SID 29615
in rule duplicates previous rule. Ignoring old rule.

WARNING: /home/olive/Desktop/rules/malware-cnc.rules(3257) GID 1 SID 26264
in rule duplicates previous rule. Ignoring old rule.

WARNING: /home/olive/Desktop/rules/os-windows.rules(40) GID 1 SID 272 in
rule duplicates previous rule. Ignoring old rule.

WARNING: /home/olive/Desktop/rules/os-windows.rules(41) GID 1 SID 3442 in
rule duplicates previous rule. Ignoring old rule.

25867 Snort rules read
    23950 detection rules
    150 decoder rules
    268 preprocessor rules
24368 Option Chains linked into 923 Chain Headers
0 Dynamic rules


and the  directory dynamic rules libraries
dynamicdetection directory /usr/local/lib/snort_dynamicrules
is empty , all SO_rules how can i fix this problem

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