[Bro] bro logs stopped
Daniel Thayer
dnthayer at illinois.edu
Thu Dec 7 11:48:30 PST 2017
Which OS are you using? Which version of Bro?
On 12/7/17 12:37 PM, Debary, Travis wrote:
> Good afternoon all,
>
> Hello all, I'm new to bro and am having to learn and manage an existing
> implementation, which means I have to make sense of everything as I
> troubleshoot. If this is not the best place to ask for help, I apologize
> and please feel free to correct me.
>
> I’m having an issue with a sensor that collects bro logs and then sends
> them to Splunk. On 11/17, it stopped sending logs and I've spent the
> last couple of weeks trying to figure this out.
>
> When I go to /nsm/bro/logs/ and /current, there are no log files at all
> in the directories. On another sensor that is working, when I go to
> these folders, I see log files that are named after the date (e.g.
> 2017-12-07).
>
> When I try to run broctl on the nonworking sensor, it gives me the below
> error:
>
> "Error: must run broctl on same machine as the standalone node. The
> standalone node has IP address 127.0.0.1 and this machine has IP
> addresses: 172.27.x.x (x are placeholders), fe80::1e98:ecff:fe15:d098"
>
> I get that same error whenever I try to do anything with broctl, even
> stop it. Since it's giving the loopback address, I'm not sure why it
> recognizes it as a different machine.
>
> When I go to the node.cfg file in /opt/bro, it displays this:
> [bro]
> type=standalone
> host=localhost
> interface=eth0
>
> However, when I look at that file on the other sensor that is working,
> it displays:
> [manager]
> type=manager
> host=localhost
>
> [proxy]
> type=proxy
> host=localhost
>
> [nsmsen04-eth1]
> type=worker
> host=localhost
> interface=eth1
> lb_method=pf_ring
> lb_procs=1
>
> Just an FYI, the working sensor also sends logs to SecurityOnion so not
> sure if that has anything to do with the difference in node.cfg. The
> nonworking sensor only sends logs to Splunk, which I have already
> verified the Splunk Forwarder is working properly.
>
> Is there anything I am missing that would fix this? I'm probably not
> giving you everything you need to help but please let me know what else
> I can provide that would assist.
>
> * Travis
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