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logging regex filter syslog–ng, Share, Improve this question, Follow asked Apr 10 ’14 at 11:38, Peter Peter, 123 1 1 silver badge 5 5 bronze badges, Add a comment , 1 Answer Active Oldest Votes, 0 Found the answer on another filter, The filter program lets you use regexp

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syslog-ng Open Source Edition 3,17

Comparing Macro Values in Filters

Syslog NG Performance, regex in filters, : sysadmin

I haven’t used syslog–ng, so YMMV, However, I have done quite a bit of Logstash filtering with regex, It’s always way more performant to do as few regex operations as possible, so if you can fit as many operations into one pattern, it’ll be better, You can probably make your pattern more efficient by having a single “dstip=10\,” and then

Top responsescurious why you did things like 10,131,81,82,83,84,85 as opposed to 10,131,8[1-5]3 votesBy ‘performance is suffering’, I’m guessing CPU is the issue? Did you see a performance increase when you changed the Regex? Volume of messages is … read more2 votesI haven’t used syslog-ng, so YMMV, However, I have done quite a bit of Logstash filtering with regex, It’s always way more performant to do as few regex … read more1 voteWhat do you mean by performance suffering? Are logs not being written? Is your CPU spiking? Memory issues? How many devices are you sending to it? Is … read more1 voteAfficher tout

syslog-ng Open Source Edition 3,18

Regular Expressions

syslog-ng Open Source Edition 3,16

Combining Filters with Boolean Operators

linux

You asked if syslog-ng could combine filter statements, and it appears that it can, – Jeff Schaller ♦, Oct 9 ’18 at 18:28, here, it says: It is advised to use the simplest filters when filtering incoming messages, If a message can be filtered with several types of filters, check the measured data, For example, if a message is filtered with a regexp, the performance of syslog-ng can drop

syslog-ng Open Source Edition 3,16

Conditional Rewrites

Regular expressions supported by Kiwi Syslog Server

33 lignesWhen adding a filter based on IP address, host name, or message text, you can use …

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Using regexp in match

Předmět: Re: [syslog–ng] Using regexp in match Datum: 22,7,2008 16:23:01—–If an application e,g, syslog–ng has the file open for read or write, then the file handle in that app is another reference to the file, So the file still exists after rm because there are still …

Using regex on Syslog-ng to save to specific file

In the old Syslog–ng 1,6,x, there was not a way to regex out this information and then use it in the destination section, Each time we had a new combination, it required writing additional lines with additional regexs, Started to really feel it on performance, With the new branch of syslog–ng 2,0,x, this feature is now available,

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Is Match Example Right?

syslog-ng filters过滤器_缘起宇轩阁-CSDN博客

3,6, Filters Filters perform log routing within syslog-ng: a message passes the filter if the filter expression is true for the particular message, If a log statement includes filters, the messages are sent to the destinations only if they pass all filt

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I’ve never really tried it that way but it should be possible to filter by a match statement with a proper regex which matches for the ip range, Should be relatively easy as long as you’re using not too small ranges, something like 192\,168\,1\,[0-9]{1,3} to filter on ip range 192,168,1,x HTH T, _____

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