# about class Dcitionary

**URL:** <https://community.zeek.org/t/about-class-dcitionary/299>\
**Category:** Zeek\
**Created:** [September 29, 2002, 3:42am UTC](https://community.zeek.org/t/about-class-dcitionary/299 "2002-09-29T03:42:21Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Vern](https://yyz1.discourse-cdn.com/flex011/user_avatar/community.zeek.org/vern/32/630_2.png) [@Vern](https://community.zeek.org/u/Vern)\
**Post date:** [September 29, 2002, 3:42am UTC](https://community.zeek.org/t/about-class-dcitionary/299/1 "2002-09-29T03:42:21Z")

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> As you kownn, snort works on packet data, while Bro works on connection  
> data.

Bro also has a signature engine that can read Snort rules, per the  
CHANGES file.

> I  
> want to know how to use Bro to save all the connection to dist file.

I don't quite know what you mean. Bro writes connection summaries to  
stdout if you load tcp.bro (or the usual load of mt.bro). It also can  
write a tcpdump packet trace file if you specify -w file.

&nbsp;&nbsp;&nbsp;&nbsp;Vern

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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, 3:36pm UTC](https://community.zeek.org/t/about-class-dcitionary/299/2 "2022-05-06T15:36:36Z")

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Closed on May 6, 2022, 3:36pm UTC