If the IP address is local it will have a blank resolved hostname, which will exclude it from the stats table. Then apply your regexes extracting single fields. This way youd have a full set of your fields per event. One easy way to make things work - depending on what you want for a final output - yoursearchhere mvexpand key lookup lookupkey key OUTPUT resultX resultY whatever else. Assume that you also have created a lookup named lookupkey. | lookup dnslookup clientip as dstip OUTPUT clienthost as Resolved_hostname | stats count by dstip Resolved_hostname dstport proto actionīe careful when using the stats command, though. The proper approach would be to first extract whole 'subevents' starting with 16r:fin, ending with 16s:fin, then do a mvexpand to make separate events from them. where the fields are the timestamp, a 5-digit field named id and a multivalued-field named key. Splunk, Splunk>, Turn Data Into Doing, Data-to-Everything, and D2E are trademarks or registered trademarks. Compare search field to multiple lookup fields user2020dy. An example would be detecting an attack with previous reconnaissance. My lookup fields: ip1, ip2, ip3, ip4, user What I want is to find matching pairs in srcip and ip1, ip2, ip3, ip4 and. Looking for a recent match in index2 where there was an older event occurring in index1. The example below is to parse some firewall logs from a single source host and perform lookups on them. Im trying to return multiple fields by way of using a subsearch. You can order your search results in a table if you do the above command before your stats or table command. is the name of the column which will contain your resolved hostnames.is the field which contains the IP addresses you want to do name lookups on.In this example, the where command returns search results for values in the ipaddress field that start with 198. Use the underscore ( ) character as a wildcard to match a single character. Use the percent ( ) symbol as a wildcard for matching multiple characters. Next Populate dropdown menu using lookup and tokens with multiple field values. With the where command, you must use the like function. One of the fields in my dataset sometimes has a single value - NULL - in which case Splunk does not include the entire row. Quotes around first word in inputlookup value. The answers here work if each field in a row has the same cardinality. I using appendtrue in my outputlookup command to add new entries. I need to expand multiple MV fields in Splunk. First, however, we need to extract the user name into a field. The command is as follows: | lookup dnslookup clientip as OUTPUT clienthost as mvzip + mvexpand trick for fields of different cardinalities. Seeing resolved domain names alongside IP addresses gives much more meaning to the data. Instead of Splunk listing a bunch of IP addresses, it now returns a column with everything it could resolve. Thanks to this website I was able to learn how to use the lookup command to give me more relevant results. I recently came across a very handy command in Splunk, the lookup command.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |