# OS setup

**URL:** <https://community.zeek.org/t/os-setup/118>\
**Category:** Zeek\
**Created:** [February 1, 2001, 3:45pm UTC](https://community.zeek.org/t/os-setup/118 "2001-02-01T15:45:48Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Anderssen\_Magnus](https://avatars.discourse-cdn.com/v4/letter/a/977dab/32.png) [@Anderssen\_Magnus](https://community.zeek.org/u/Anderssen_Magnus)\
**Post date:** [February 1, 2001, 3:45pm UTC](https://community.zeek.org/t/os-setup/118/1 "2001-02-01T15:45:48Z")

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Hi,

&nbsp;&nbsp;I'm trying to configure Bro to run on my system (freeBSD4.2).

> From the alpha doc :

- BPF kernel support : I got it  
- /dev/bpf devices, permissions : 'MAKEDEV'ed the devices and set crw-r-----  
permissions  
- sysctl buffer sizes : which buffer sizes are revelant.  
- libpcap that doesn't limit buffer sizes : how to know ? I got the libcap  
(v0.5)provided with freeBSD 4.2

Thanks in advance.

Magnus Anderssen

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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/os-setup/118/2 "2022-05-06T15:36:14Z")

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