how to run snort from different linux directories

[David Kingsly <davidkingsly () verizon net>]

I am running into some problems trying to activate snort.  I seem to be
able to run it fine from my Ubuntu's /usr/src/snort/snort-2.8.3.2
and /etc/snort directory, but when I try to run it from /usr/local/bin,
I get the fullowing error message:
@thunder:/usr/local/bin$ snort -v
Running in packet dump mode

        --== Initializing Snort ==--
Initializing Output Plugins!
Verifying Preprocessor Configurations!
ERROR: Failed to lookup for interface: no suitable device found. Please
specify one with -i switch
Fatal Error, Quitting..


Here is what it looks like when I run it successfully:
root@thunder:/etc/snort# snort -v
Running in packet dump mode

        --== Initializing Snort ==--
Initializing Output Plugins!
Verifying Preprocessor Configurations!
***
*** interface device lookup found: eth0
***

Initializing Network Interface eth0
Decoding Ethernet on interface eth0

        --== Initialization Complete ==--

   ,,_     -*> Snort! <*-
  o"  )~   Version 2.8.3.2 (Build 22)  
   ''''    By Martin Roesch & The Snort Team:
http://www.snort.org/team.html
           (C) Copyright 1998-2008 Sourcefire Inc., et al.
           Using PCRE version: 7.8 2008-09-05

Not Using PCAP_FRAMES




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