User guide
ManageEngine Firewall Analyzer :: User Guide 
271 
Zoho Corp. 
7.  My firewall is sending WELF logs, but the reports do not show any URL 
information?  
Firewall Analyzer checks for the entry "arg=your URL" in the firewall logs to 
populate and show URL in report data. If this entry is not present in the firewall 
logs then the reports wouldn't be showing any URL information. 
8.  In the Compliance Report field, the following message appears: 'Unable to 
generate compliance report. Reason: Failed to locate Nipper. Click here to enable 
it'. What should I do?  
Supported Platform: 
•  Ubuntu 9.1.10 
•  Fedora 12 
•  OpenSuSE 11.2 
•  CentOS 5.5 
Prerequisite:  
The GNU/Linux platform requires Qt 4.5 to be installed. Your package manager 
system should automatically install this for you.  
Steps: 
1.  Download Nipper libraries from 
http://www.manageengine.com/products/firewall/download-third-party-
utilities.html according to your platform  
2.  Install the rpm or deb according to your Operating System 
3.  Connect to Firewall Analyzer web client and type the following URL: 
'http://<host name>:8500/fw/userConfig.do' 
4.  In that, there is an option to provide the path in which you have installed 
'Nipper'. For ex: '/usr/bin/nipper'  
5.  Click on Save link 
After performing the above steps, go to Setting > Device Rule > Add Device 
Info, the option to generate compliance report for the device will be enabled. 










