# Off-line analysis

**URL:** <https://community.zeek.org/t/off-line-analysis/645>\
**Category:** Zeek\
**Created:** [December 5, 2004, 11:13pm UTC](https://community.zeek.org/t/off-line-analysis/645 "2004-12-05T23:13:38Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![shonx001](https://avatars.discourse-cdn.com/v4/letter/s/e19b73/32.png) [@shonx001](https://community.zeek.org/u/shonx001)\
**Post date:** [December 5, 2004, 11:13pm UTC](https://community.zeek.org/t/off-line-analysis/645/1 "2004-12-05T23:13:38Z")

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If so,  
I first have to make "my own".bro, and then add the "my own.bro" file to  
policy setting in bro.cfg?

What I'm wondering is to set up for general IDS OFF-Line test.  
In my thought, it is not easy to test in Off-line in comparison with Snort,  
although Bro performance is better than snort. 🙂

I really appreciate if you tell me know more specific method to use Bro in  
off-line test.

Best Regards,  
Taeshik

> \> When I try to off-line analysis with -r option, how can I use all Bro  
> \> rules?
> 
> The notion of "all Bro rules" is not that well defined. There are a

large

> number (100+) of policy files in policy/\*.bro, some of which are

incompatible

> with others (for example, print-filter.bro prints the BPF filter being

used

> and then exits).
> 
> That said, here's what we use when to run against our internal test

suite:

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**Author:** ![system](https://canada1.discourse-cdn.com/flex011/uploads/zeek/original/1X/f09d732bc2cc7c7cc7e35db67cf4e1d5233ce7a7.png) [@system](https://community.zeek.org/u/system)\
**Post date:** [May 6, 2022, 3:37pm UTC](https://community.zeek.org/t/off-line-analysis/645/2 "2022-05-06T15:37:16Z")

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