I have had luck with the following config for DHCP logs.

  <localfile>
    <location>%windir%/sysnative/Dhcp/DhcpSrvLog-%a.log</location>
    <log_format>syslog</log_format>
  </localfile>

On Tue, Sep 19, 2017 at 2:40 PM, <[email protected]> wrote:

> Hello OSSEC Team,
>
> I need your help to understand what the following error means.
>
> So I have added the following changes into the agent's config file to be
> able to read DHCP logs:
>
> <localfile>
>   <location>%windir%/System32/Dhcp/DhcpSrvLog-%a.log</location>
>   <log_format>syslog</log_format>
> </localfile>
>
>
> But I get the following related messages in the ossec log:
>
> 2017/09/19 13:06:13 ossec-logcollector(1952): INFO: Monitoring variable
> log file: 'C:\Windows/System32/dhcp/DhcpSrvLog-Tue.log'.
> 2017/09/19 13:06:13 ossec-logcollector(1103): ERROR: Could not open file
> 'C:\Windows/System32/dhcp/DhcpSrvLog-Tue.log' due to [(9)-(Bad file
> descriptor)].
> 2017/09/19 13:06:13 ossec-logcollector(1950): INFO: Analyzing file:
> 'C:\Windows/System32/dhcp/DhcpSrvLog-Tue.log'.
>
>
> I have tried changing the "/" to "\", but the same error ensues.
>
> Does anybody know what that "bad file descriptor" means? I am not sure
> what OSSEC is complaining about.
>
> Thanks!!
>
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