I have a ELK cluster to keep my logs below, and i want to extract some fields in the log use logstash grok.
[info ][170703 10:34:38.998686/832]acct ok,deal_time=122ms;ACCESS_PORT=216179383538692472&ACCESS_TYPE=2&ACCOUNT=07592111916&Acct-Status-Type=3;
here is my grok pattern.
%{SYSLOG5424SD}\[%{DATA:[#metadata][timestamp]}\/%{NUMBER}\]%{WORD:type}\ %{WORD:status}\,%{GREEDYDATA}%{NUMBER:dealtime}ms\;%{GREEDYDATA}(?<acct>(?<=ACCOUNT=).*)
i want to extract some field's value and give it to the event variable.
eg. acct = 07592111916
i use (?(?<=ACCOUNT=).*&$) to extract the value, but not works, where is my problem?
i debug the code in this site.
http://grokdebug.herokuapp.com
I think you need to extract this way:
(?<acct>(?<=ACCOUNT=)[^&]+)
Related
I want to parse a timestamp from logs to be used by loki as the timestamp.
Im a total noob when it comes to regex.
The log file is from "endlessh" which is essentially a tarpit/honeypit for ssh attackers.
It looks like this:
2022-04-03 14:37:25.101991388 2022-04-03T12:37:25.101Z CLOSE host=::ffff:218.92.0.192 port=21590 fd=4 time=20.015 bytes=26
2022-04-03 14:38:07.723962122 2022-04-03T12:38:07.723Z ACCEPT host=::ffff:218.92.0.192 port=64475 fd=4 n=1/4096
What I want to match, using regex, is the second timestamp present there, since its a utc timestamp and should be parseable by promtail.
I've tried different approaches, but just couldn't get it right at all.
So first of all I need a regex that matches the timestamp I want.
But secondly, I somehow need to form it into a regex that exposes the value in some sort?
The docs offer this example:
.*level=(?P<level>[a-zA-Z]+).*ts=(?P<timestamp>[T\d-:.Z]*).*component=(?P<component>[a-zA-Z]+)
Afaik, those are named groups, and that is all that it takes to expose the value for me to use it in the config?
Would be nice if someone can provide a solution for the regex, and an explanation of what it does :)
You could for example create a specific pattern to match the first part, and capture the second part:
^\d{4}-\d{2}-\d{2} \d\d:\d\d:\d\d\.\d+\s+(?P<timestamp>\d{4}-\d{2}-\d{2}T\d\d:\d\d:\d\d\.\d+Z)\b
Regex demo
Or use a very broad if the format is always the same, repeating an exact number of non whitespace characters parts and capture the part that you want to keep.
^(?:\S+\s+){2}(?<timestamp>\S+)
Regex demo
Dear great StackOverflow community :)
I'm using Google's BigQuery to query and analyze AppEngine's logs.
Trying to create a query that will return all JSON Keys being used by an API Caller, so I'm using "regexp_extract".
So if an API caller sent the following body (which is a line in the log printing the raw request):
{"Customers": [{"PhoneNumber": "0599984512"}],"ExpandAssets": true,"IncludeArchivedAssets": false,"TestRedeemConditions": true}
I want to capture all JSON Keys, so a basic Regex would be:
SELECT
regexp_extract(Log, r'"(\w+)":') as CallerFields,
FROM ...
Eventually the above regex matches all JSON Keys but "CallerFields" is now filled with only one match (the first one actually, which is "Customers"),
while I want "CallerFields" be a string which its value will look something like this:
Customers,PhoneNumber,ExpandAssets,IncludeArchivedAssets,TestRedeemConditions
Due to the fact that I'm using BigQuery, I'm a bit limited and can't find a way to call the Regex in a loop, which is a good solution I found here in many other questions -
My question is, how do you gather all matches and return it as a string, in Regex?
(Google BigQuery uses RE2 Regex engine)
(of course - if you think of a better way achieving my goal, than capturing all matches in regex, let me know)
Thanks in advance!
I am working on the ELK stack and as part of Logstash data transformation i am transforming data in Apache access logs.
One of the metric needed is to get a stat on different content types (aspx, php, gif, etc.).
From the log file I am trying to retrieve request url and then deduce the file type, for ex /c/dataservices/online.jsp?callBack is the request and I would get .aspx using the regular expression
\.\w{3,4}.
My regular expression wont work for request say /etc/designs/design/libs.min.1253.css this is returning me .min as the extension.
I am trying to get the last extension but it is not working. Please do suggest other approaches.
You need to anchor the match to the end of the string or the beginning of a query param ?. Try:
\.\w{3,4}($|\?)
Play with it here: https://regex101.com/r/iV3iM1/1
You're going to need a much fancier Regex.
Try this one.
([/.\w]+)([.][\w]+)([?][\w./=]+)?
This uses three capture groups. The first ([/.\w]+) matches your path up to the last .
The second ([.][\w]+) matches the final extension, and you can use the capture group to read it out.
The third ([?][\w./=]+)? matches the query string, which is optional.
www.domain.com/home/processform/thankyou?order_id=9653&order_value=mobilebrand as the the final URL for thank you page with unique ID.
^/thankyou$ as RegEx - will this work to count the goal?
Use this:
regular expression /thankyou
as the destination goal.
If your page values in Google Analytics are formatted the default way, you'll want to use the following regex:
^/thankyou.*
If you use a '$' at the end, it won't detect any of your URLs that have query parameters, like your examples do.
one can use the below which will only match "/thankyou" or "/thankyou/" in any given URL
regex \/thankyou\/?
I'm looking at the log messages for a particular branch in TortoiseSVN. We have an automated build process which has commits regularly to the branch using the author "builder".
In the TortoiseSVN search box, you can filter by authors and you can use regular expressions... what search expression can I use to show all the log messages not committed by author "builder"? Is it possible?
add !(builder) to the filter box
kindness,
dan
As agileguy already mentioned, the string "!(builder)" will work.
But as for an explanation:
the '!' if it's the first char of the filter string will negate the filter
the '()' would have the regex put the search/filter string 'builder' into a regex group. Since that's not really necessary, you could also just use "!builder" instead of "!(builder)" as the filter string.