# Messages in Bro **URL:** \ **Category:** Zeek\ **Created:** [March 25, 2000, 3:33am UTC](https://community.zeek.org/t/messages-in-bro/80 "2000-03-25T03:33:02Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Matt\_Schnaider](https://avatars.discourse-cdn.com/v4/letter/m/58956e/32.png) [@Matt\_Schnaider](https://community.zeek.org/u/Matt_Schnaider)\ **Post date:** [March 25, 2000, 3:33am UTC](https://community.zeek.org/t/messages-in-bro/80/1 "2000-03-25T03:33:02Z")
Hi, Has anyone built a list of the possible messages that bro can generate (and possibly some interpretations?)? If so please let me know. Also, if anyone could explain what "telnet ack above a hole" means, I'd appreciate it. Thanks. -Matt \_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_ Matthew J. Schnaider East 121 Harvey Mudd College x72006 340 E. Foothill Blvd. Class of 2001 Claremont, CA 91711 Computer Science Department Staff "For starters, what is an echo and what does it do? The echo program reads a string and repeats it; think of the program as an automated liberal arts undergraduate student."         -- Stephen Northcutt \_Network Intrusion: An Analyst's Handbook\_ .\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_.\_. ---
**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/messages-in-bro/80/2 "2022-05-06T15:36:10Z")