Stream

Hi, have anyone successfully deployed Cribl on RHEL based host that comes with SELinux enabled?While I have managed to get Cribl manually run, I've hit into issues when trying to enable Cribl on boot as a service. Looking at the entries from "journal -xe", it's throwing up errors to do with SELinux denying the processs because of cribl.pid file unlinking permission.After running the suggested actions as interim fix for SELinux, systemd were able to launch Cribl process but only to see that it fail right after, with slightly different message about "protocol failure" which doesn't give much of a clue what went wrong.

Hi, I am currently exploring a way to collect event data and looking to save it into a temporary staging storage (GCS Bucket) before transferring the data downstream for further processing.I am having difficulty to get a working configuration on Stream no matter what I tried. Stream worker is always throwing the following error: "failed to close file" where the detailed message is saying "Invalid argument." without much details except that the file that Stream worker is having issue to close is at this location: /opt/cribl/state/outputs/staging/prefix/Bucket_yyyymmdd_hhmm/yyyy/mm/dd/CriblOut-<random>.0.json.tmpI have checked that the credentials for accessing the bucket is valid and the permissions for the given credentials are alright for upload files into the bucket.Does anyone have any idea how I might be able to get around this problem?Thanks.

Hello,Here I have a small picture of how the environment is structured:Red arrow -> Source Splunk TCP (Cribl Stream) I'm trying to forward the journald data from the Splunk Universal Forwarder to the Cribl Worker (Black to blue box).I have configured the forwarding of the journald data using the instructions from Splunk.(Get data with the Journald input - Splunk Documentation) I can forward the journald data and it also arrives at the cribl worker.Problem: the cribl worker cannot distinguish the individual events from the journald data or does not know when a single event is over and thus combines several individual events into one large one.The Cribl Worker always merges about 5-8 journald events.(I have marked the individual events here. However, they arrive as such a block, sometimes more together, sometimes less.)Event 1:Invalid user test from 111.222.333.444port 1111pam_unix(sshd:auth):check pass; userunknownpam_unix(sshd:auth):authentication failure; logname= uid=0 euid=0 tty=

I recently set up our SQS amazon queue in cribl. Events are forwarding to splunk, however when compared to the pre existing aws logs in Splunk from the Heavyforwarder TA, I noticed we are only pulling in events from only one region via cribl oppose to the 20 actually sending events and being received through the Splunk TA. Any advice on how to troubleshoot an solve this issue?

Hi,I have a very basic setup which has: Cribl stream leader node, 2 cribl workers, 1 admin nodesource: syslog tcp port 1514destination:filesystemroute filter:__inputId.startsWith('syslog:')route pipeline: mainroute output: filesystempipeline: main and CriblSyslog routes attachedI have a test machine that has it's rsyslog sending to remote location (a worker node) and also a script that randomly generates syslog data and sends to the same worker node every 1 second.I can see the data come in using tcpdump, I can see the received messages coming into the worker in the Sources → Syslog → Status menu but nothing is being processed. Outside of the status menu, none of the metrics show the incoming messages and no files are being written to the filesystem. I've confirmed the connection between the test host and worker node is open with telnet and netcat.Tried tailing Cribl log files, system log files, anything to find why it's showing as receiving the messages but not processing in the pipel

Which Azure Sentinel tables does Cribl Stream natively support? And does it also support sending data to custom tables?

Hi All, Posted this in the Slack channel but no bites.We are trying to filter out data from an WAF log to decrease the log size ingested. I created a parser in the existing WAF pipeline using the “Extract” Operation Mode but I cant seem to get it to function correctly.  I was told by support the "Mask Function" would work best, they said "Within that function you can specify the regex and replace it with "". " Not sure how to go about that route. I'm essentially trying to drop data in the log using the following regex but like i said it doesnt seem to function when I test with sample log. The regex is the following -> nContent-Security-Policy-Report-Only.*?DFCspReportFunction\+blob:.*

A which version of the Cribl support integration with the BigPanda?

Hi community,I'm trying to route log data to a self-hosted minio cluster that uses certificates generated using a custom certificate authority. Other destinations allow me to set the path to my CA - the MinIO destination does not seem to have that option.Is there a way to configure a CA so that this works?I have also already tried to disable the "reject invalid ssl cert" option, but the events are still not routed to the destination. It always gives the error "self-signed certificate in chain".Thanks in advance,Hannes

Hello,I am re-factoring a lot of our code + workflow and trying to simplify stuff. I ran into this issue and I wanted to check with the community + cribl folks if they could give some guidance.We have a few groups, some groups have an rsyslogd input configured. This is configured as "networkrsyslogd". As you can imagine we have networking gear sending out its events over. I stood up a new "Pre-Processing-Pack" and I tried to use create a route filtering via the cribl internal field __inputId but alas this did not work, I further configured the above input to include a new field inputName="networkingsyslog" and further when I used this as as a filter in routes, things work. That said, other than fields that are emitted by the source, what cribl internal fields can I use for filtering purposes? I thought logically this should have been stamped on the events as soon as it hits stream or edge, but doesn't look like it does.Thank you!g

i am using Syslog-ng to send logs to Cribl (distributed deployment ).In this setup, A cribl leader and one single worker is configured.in the syslog-ng , i configured it to send to Cribl leader IP using port 5514.but i got an error that syslog connection failed:but when i set the Cribl worker as destination in syslog-ng it works!I asssumed initially that the Cribl leader IP should be set in the destination part in syslog-ng config file but doesnt work that way as i had error (mentioned above).Apparently when we have multiple worker nodes. should we redirect to just one worker?how does this works?

We are trying to build a region based leader worker node configuration and a central leader to manage all those regional leaders .Is this possible ?

hi,I will be upgrading Cribl distributed upgrade from 3.0.4 to 4.5 and Just wanted to ask if we need to upgrade worker nodes in the default worker group if we don’t use them and will be decommissioned after the upgrade?thanks

Getting SSL errors on Cribl(client) connection to Splunk LB instances at Splunk clod. Getting client disconnected before establishing TSL communication. How do I address this?

How do I create a Pack From API, there is documentation for Wizz API Integration with Cribl?

Has anyone been able to configure an S3 collector for Cisco umbrella? I'm certain the fields for Path and S3 bucket are correct but nothing is being pulled and I'm not sure where the issue is. Any guidance or tips are appreciated.

Hi EveryoneI am have a strange problem with metric feed from a route that uses the Windows Pack. I currently forward ALL my Cribl metrics via Quickconnect to Splunk and simply add a index and sourcetype field (no other changes).When run my mstats search on cribl.logstream.route.in_bytes and cribl.logstream.route.out_bytes and split by the route name. The only metric i dont seem to see if the route that uses the Windows pack? I have tested a couple other packs like fortigate and that works. I do however see metrics using cribl.logstream.sourcetype.in_bytes and cribl.logstream.sourcetype.out_bytes when I use event_sourcetype? Find this a bit bizarre?Thanks

HiyaI have a pipeline set up from a datagen source (business events) - see attached first imageAs you can see the event has fields, now I want to remove fields - source and sourcetype - no matter what I try in the "fields to remove" nothing gets removed (see output) belowI am trying to get the UI to show in red - the fields that are to be dropped here is something even weirder - when I do "!(name.startsWith('source'))" for filter by expression - it shows me the new JSON payload but the UI still has source and sourcetype in it.

I'm using a Rest API to grab logs from a cloud provider. I can see the logs are pulled from the API. I can see that the data is formatted correctly. Within my Data Source. Result Routing → Sent to Routes: NO Pipeline: passthru Destination: SIEMPreview [Before Destination]: Shows my data formatted correctly. Discover: Sends a few lines to my SIEMFull Run: Nothing happens. Any ideas on what to look at to figure this out or how I can troubleshoot this would be greatly appreciated.Thanks!

We have configured a Cribl syslog source to listen on TCP and UDP port 514 however when we check in status of source we see the state as red and a netstat -rn in the OS does not show the port as listening.

I haven't found any documentation for this - please point me at it if it exists - but I wonder what the shutdown procedure of a worker is?I assume it stops all active listeners, then finishes processing any in-flight events before shutting each thread down?Does it disconnect from the leader before processing those events, or otherwise remove itself from the pool of workers available to run collections?Does it attempt to drain it's persistent queues? If so for how long and what happens it if fails?Do destination connections stay up till the very end, or does each get disconnected as soon as there are no more events destined for it?Plus lots of other considerations I'm sure - would be useful have a bullet list or flow chart of the shutdown sequence for reference.

What are the URL's and addresses used for in the Cribl cloud access details pop up:

Hi, I'm trying to setup a chronicle destination but I'm receiving the following error:Connection error: Client network socket disconnected before secure TLS connection was establishedI have tried curling the endpoint from my worker and I can see a successful connection, I'm not sure what I'm doing incorrectly.

How do we create a Pack for a Security tool that doesn't have pack to convert data into OCSF?

Hi everyone, I can't find a complete list of available variables to use in the REST collector configuration. I only know those that are embedded in the documentation (for example, ${earliest}). Is there a complete reference table which I may have overlooked?