About deepakc

deepakc · ‎09-12-2024

This blog should help with some SVC information https://www.splunk.com/en_us/blog/platform/what-is-splunk-virtual-compute-svc.html?locale=en_us

deepakc · ‎08-14-2024

I suspect you want to know about priority alerts, but how will Splunk magically know about this? Its always better to give good context to the Splunk communiy, so what is P1C? and JMET sounds like some internal Splunk environment company code (which you should anonymise) Unless you have say for instance in the saved search title name P1C, example, my_search_P1C, Splunk will not be able to find it or filter on it. Or you will need to use the eval command and for each saveded that you know is a P1C and assign a eval field called priority, but will require a lot of work. Tip: As ever its always best practise to have good business naming conventions, makes things easier in the long run Example using makeresults to assign PC1 | makeresults count=2 | streamstats count as search_num | eval title=case(search_num=1, "my_savedsearch1", search_num=2, "my_savedsearch2") | eval priority=if(title=="my_savedsearch1", "P1C", null()) | fields - search_num

deepakc · ‎08-14-2024

If the DB connect is not supported with your current Splunk version, then plan to upgrade Splunk to the supported levels to do what you want. If its not supported, sometimes you can still install and it may work, but you take this risk and that not advisable for production environments.

deepakc · ‎08-14-2024

Getting data in requires a number of steps and investigation work. Some high level notes/tips 1. The first thing you need to do is to determine what data you want from Cloudflare, they offer a number of services right?. 2. Investigate what options they provide in getting the data you want, logs, API, syslog etc. 3. You then look and explore Splunkbase (type in Cloudflare) and see if there is a Add-on (this is what typically helps you collect the data) you will need to do some homework and find out if it meets your methods of getting the data from step 2. Once you have this you need to Deploy the TA as per the instructions and connect to the data source.

deepakc · ‎08-02-2024

What do you mean by data labs, can you please provide for the Splunk community a better posed question. What is you set up, is datalabs a provider of some sort of data? Is there a TA for for this or are you using the DB connect app if supported Did this work before, what changed. Have you developed a custom dashboard with panels that searches the data. ------------------------------------------------------- NOTE: Data is presented in the dashboards by the way of searches (SPL code) which is then set up inside of the dashboards. Data is typically indexed into an index, Data model, index, summary index, or accelerated report and this comes from Splunk many different inputs methods. I would suggest start by looking at the dashboards SPL (Search code) and troubleshoot from there. Look at the index (index=my_index) example and then workout where the inputs is coming from. The TA's normally have some kind of inputs that perform collection every so often, if used you need to check the settings.

deepakc · ‎07-22-2024

Start by checking that you have port 8000 available - check firewall ports The SSH issue is again most likely related to ports/access 22 (but this is not a splunk issue) Speak to an Linux OS admin, as your issue's seem to be OS config related.

deepakc · ‎07-19-2024

Splunk is all about time series data, so you can search data/events using various times etc, so what this means, you need to ensure you have well formatted logs with a time stamp, which is what Splunk loves and try's to break the events based on the timestamp. Splunk has the capability to auto detect most common log formats and timestamps, but this is not best practice for custom logs, its better to ensure you parse and format the timestamp correctly. As you have a custom log file it looks , you will need to create a new sourcetype for it and apply props and transforms configuration to it, which will then parse and ensure the time stamp is correct. First try and understand the props concepts and apply that to your log file, it will requires some props code trial and error, until your get it to work as expected. Start here: https://lantern.splunk.com/Splunk_Platform/Product_Tips/Data_Management/Improving_data_onboarding_with_props.conf_configurations

deepakc · ‎07-18-2024

Yes HEC is often used when you cant use UF/syslog etc. https://docs.splunk.com/Documentation/Splunk/9.2.2/Data/UsetheHTTPEventCollector

deepakc · ‎07-16-2024

At a high level: 1. I would first look at the integration manual they state in the app - - Omnis Data Streamer 6.3.5 Splunk Integration Guide - look for data onboarding or something on those lines. 2. The App you have is just for mainly displaying data and, I think you would need the look the the TA - NETSCOUT Omnis Data Streamer App Add-on | Splunkbase (This is what helps get the data parsed and in to splunk) Start by working out your exact Netscout device and the options it provides in terms of data (json/syslog/log files etc), look at the manual and workout what they suggest and follow that plan, test it and ingest it. Then use the App to help display the results. Splunk has many options in getting data in, UF/Syslog/HEC and supports many different formats of data, such as Json, but first you must do some home work and work out the details.

deepakc · ‎07-04-2024

That's odd one, never seen that, I've have installed many Splunk instances on RHEL/CentOS/Fedora (7/8), over the years and not the other flavours so much, and with systemctl and not initd. There may be a parameter that could be changed, in the Splunkd.service file, example TimeoutStopSec=360 lower this perhaps, it's not something I've done or ever had to, and only do in a lab test server and see if that makes a difference) https://docs.splunk.com/Documentation/Splunk/9.2.2/Workloads/Configuresystemd#Configure_systemd_manually Other areas to further troubleshoot/investigate Ensure the splunk user has the below: (Add to Wheel or sudoers) and see if that makes a difference Non-root users must have super user permissions to manually configure systemd on Linux. Non-root users must have super user permissions to run start, stop, and restart commands under systemd https://docs.splunk.com/Documentation/Splunk/9.2.2/Workloads/Configuresystemd#Configure_systemd_manually

deepakc · ‎07-04-2024

This indicates that the CPU is spending a significant amount of time waiting for I/O (typically disk) as your ingesting/parsing data/searching, so with Splunk you need to size it sufficiently, otherwise you will get those messages, remember Splunk is a workhorse and needs resources: Have a look at the below to posts, I recently had replied to around iowait https://community.splunk.com/t5/Splunk-Enterprise/IOWAIT-Mystery-What-is-it-Is-it-important/m-p/690256#M19597 https://community.splunk.com/t5/Splunk-Enterprise/Splunk-Enterprise-how-does-it-detect-IOWAIT-warning-or-error/m-p/690444#M19605 Go through these questions https://docs.splunk.com/Documentation/Splunk/9.2.1/Capacity/Performancechecklist Look at the guide in terms of performance recommendations https://docs.splunk.com/Documentation/Splunk/9.2.1/Capacity/Summaryofperformancerecommendations In summary I think you will need to bump up your specifications, but for a dev environment, you can ignore those messages, unless it's starts to crawl and become unbearable.

deepakc · ‎07-02-2024

If splunk hangs and there are timeout issues, it could be a number of things, what I have seen in the wild , is this normally relates to performance or the undelying storage system and the amount of ingest that may and can cause these types of issues. Timeouts could relate to the network, whats the latency like between the Splunk instances. How much volume of data are you ingesting, can the Splunk instances handle this? https://docs.splunk.com/Documentation/Splunk/9.2.1/Capacity/Summaryofperformancerecommendations 1. Check that your CPU/MEM, DIsk I/O meets the requirments, if thats ok then its something else that needs investigation. #Reference hardware https://docs.splunk.com/Documentation/Splunk/9.2.1/Capacity/Referencehardware 2. Check that THP has been disabled - plenty of topics on this on google and this community https://docs.splunk.com/Documentation/Splunk/9.2.1/ReleaseNotes/SplunkandTHP 3. Check that ulimits has been configured again, plenty of topics on this on google and this community Check ulimits have been configured

deepakc · ‎07-02-2024

Why not provide a better summary of your issues, so the Splunk community can then respond. It’s much better to a summary your Splunk environment, what you are trying to do, what have you done to troubleshoot and provide any errors in logs. (Also redact and sensitive information).

deepakc · ‎07-02-2024

This is most likley not possible due to security risks

deepakc · ‎07-02-2024

It sounds like some sort of setting related to connection issue: A few thinsg to check: Is there a firewall between your DB connect server and the HEC server? Ensure the port(s) are availble Ensure on Splunk HEC server, you have global settings enabled: Click Settings > Data Inputs. Click HTTP Event Collector. Click Global Settings. In the All Tokens toggle button, select Enabled. Some other aspects to check and troubleshoot: #Check if the Hec collector is healthy curl -k -X GET -u admin:mypassword https://MY_Splunk_HEC_SERVER:8088/services/collector/health/1.0 #Check if HEC stanzas with config are configured /opt/splunk/bin/splunk http-event-collector list -uri https://MY_Splunk_HEC_SERVER:8089 #Check the settings using btool /opt/splunk/bin/splunk cmd btool inputs list --debug http

deepakc · ‎06-18-2024

1.If you have your SSO/MFA data ingested and parsed correctly, also using Splunk's TA's most of them come with out of the box tags that can be used to search for the data type. Simple Example - This will search for authentication data across your defined indexes - and present the results (The tags search for authentication data) You can add your sourcetypes as well index=linux OR index=Windows OR index=my_SSO_data tag=authentication You can find the tags via GUI – easy way, or inspects the TA itself (eventtypes and tags) 2. If you have not ingested data then you need to ensure the below. Example Okta SSO / MFA - Okta would provide authentication data somewhere, in logs or API, you then need to onboard this data into Splunk, ensure there is a TA that helps with the parsing and tagging, then analyse the data, to see what it gives you and run various queries to give you the results you are looking for. Windows Event logs normally give you authentication data, based on AD / Logon events, they also provide Azure AD/ Entra, so if you used these you again would need to ingest that data into Splunk first and then run queries. Side note: Using Splunk you can check with TA’s have tags for authentication | rest splunk_server=local services/configs/conf-tags | rename eai:acl.app AS app, title AS tag | table app tag authentication This will show you the eventtypes which are associated with tags | rest splunk_server=local services/configs/conf-eventtypes | rename eai:acl.app AS app, title AS eventtype | table app search eventtype

deepakc · ‎06-17-2024

Your data that's already in ingested needs to be made CIM complaint, it might be worth spending some time getting your head around the CIM concepts, after this you can look at developing correlation rules. https://lantern.splunk.com/Splunk_Platform/Product_Tips/Data_Management/Complying_with_the_Splunk_Common_Information_model

deepakc · ‎06-17-2024

At a high level: Splunk can ingest most types of logs data, using different methods of collection. Splunk works on Key Value pairs - so if IBMi can send the data, with this data, you can then search it. The first thing to do is to look at the IBMi data and workout what format it is and how to collect that data, example, is it in a text log file, Json, XML, DB, syslog or API. You then need to set up the data collection method, this could involve a UF(Splunk Agent), Hec using HTTP API, or syslog etc, this has to be based on your environment and preferred method of collecting IBMi data, and place that data into an index. You then need to look at if there's a Splunk Add on in Splunkbase for IBMi data, this is used for parsing the data, if there isn’t one, you then need to develop Splunk props and transforms for the parsing of the data. You then have to make the IBMi, Data CIM complaint, so analyse what type of data it is, extract it via parsing and map those fields to CIM fields, so Splunk SIEM ES can make use of that data.

deepakc · ‎06-17-2024

No worries, glad it worked out out 🙂

deepakc · ‎06-17-2024

I guess you can have same auto lookup attribute names inside the same App, that then point to look up files being used. but causes issues when same inside of another app (I know Splunk for saved searches sends a message with same name or duplicate, but I don’t think it does for lookups) So, something like this alert may help | rest splunk_server=local servicesNS/admin/search/data/props/lookups | search attribute=LOOKUP-* | stats count by attribute ```Filter or add ones that are OK as they may be other attributes that use similar lookups in the same App context``` ```| search NOT attribute="LOOKUP-my_ok_lookup1" NOT attribute="LOOKUP- my_ok_lookup2"``` | eval duplicate=if(count > 1, "Yes", "No") | where count > 1 You can then find out, explore if there are other apps that use the same name attribute: Example in your case eventcode | rest splunk_server=local servicesNS/admin/search/data/props/lookups | search attribute=LOOKUP-eventcode Have play and see if this helps.

deepakc · ‎06-17-2024

From the Error, it states "failed to parse license because: The license payload seems to be empty" Its normally XML format so you should be able to check it and that its not corrupted etc. If your still having lic issues then contact Splunk to ensure you have the correct license. Follow these steps: https://docs.splunk.com/Documentation/Splunk/9.2.1/Admin/Installalicense

deepakc · ‎06-17-2024

It could be several things blocking you. TcpOutputFd (this is normally a networking or config setting) You have set the whitelist and disabled the FW. Other things to check: Check your network allows for the HF to route outbound to Splunk cloud Deploy the Splunk Credentials Package to the HF - https://docs.splunk.com/Documentation/Forwarder/9.2.1/Forwarder/ConfigSCUFCredentials Check you can connect – try this command: openssl s_client -connect inputs1.MY_STACK_NAME>.splunkcloud.com:9997 Further than that more troubleshooting is required. But it’s usually a networking that’s blocking.

deepakc · ‎06-17-2024

The index data lives on the Splunk indexer Server's . You typically use a Splunk Universal Forwarder or Heavy forwarder or some other means to send data to the Indexers and they get stored into a bucket(folder). So login to your Splunk indexers and go to the storage volume and see the data there. See the table section "What the index directories look like" this will show you the paths https://docs.splunk.com/Documentation/Splunk/9.2.1/Indexer/HowSplunkstoresindexes

deepakc · ‎06-17-2024

Support would be something that comes to mind in this process. As best practice is to use indexers with versions that are the same or higher than forwarder versions as you stated. I have found that sometimes you can't always upgrade for whatever reason, and it will work, but then some features become deprecated or updated, and it may stop working or have some breaking changes. So, you take the risk. All 7.x Splunk Enterprise are now end of support, so should you encounter problems, you have no support. See below for Splunk End Of Life Support https://www.splunk.com/en_us/legal/splunk-software-support-policy.html

deepakc · ‎06-14-2024

In the Gui > Data > Data availability - Click on the Green Base Line Search Button, that will generate the look up, you can then go back to the Data availability and it should display results.

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