I actually use Rsyslog 8.24 and I configured my rsyslog to accept logs from multiples input/sources.
I want to add the syslog hostname at the end of every logs.
Example :
Old log : timestamps, header, message
New log : timestamps, header, message syslog.domain.local
I know that the variable $myhostname or $MYHOSTNAME should return the hostname of the syslog but I don't understand how to implement this and add the syslog hostname at the end of each log.
I managed to do what I wanted by adding the following template and binding it in the ruleset :
template (name="LogsFormat" type="string" string="%TIMESTAMP% %$year% %syslogtag% %msg% <SYSLOG_HOSTNAME>:%$myhostname%\n")
ruleset(name="RemoteLogPort") {
if (re_match($msg, "AP:aaa-bbbb-ccc-dddd-ap")) then {
action(type="omfile" dynaFile="ArubaNetworksPath" template="LogsFormat")
}
}
PS : ArubaNetworksPath is also a template defining the log path.
Related
I am new to this and I want to parse the following log for a checkpoint firewall, I don't know if you can help me or guide me how I can do it so that I can see separate fields and not a single text
Ejemplo:
Source: -5:00
IP: XXX.XXX.XXX.XXX
Action: Accept
UUID= XXXX
....
-5:00 192.168.1.2 Action="accept" UUid="{0x61b22d19,0x4,0xf1137d7f,0xc0000000}" inzone="Internal" outzone="Internal" src="10.207.104.247" dst="10.207.106.9" proto="6" xlatesrc="186.5.16.83" NAT_rulenum="14" NAT_addtnl_rulenum="1" rule="21 (Incoming/Internal)" product="VPN-1 & FireWall-1" service="10050" s_port="38930
%{NUMBER}:00 %{IP} Action=%{QS} UUid=%{QS} inzone=%{QS} outzone=%{QS} src=%{QS} dst=%{QS} proto=%{QS} xlatesrc=%{QS} NAT_rulenum=%{QS} NAT_addtnl_rulenum=%{QS} rule=%{QS} product=%{QS} service=%{QS} s_port=%{QS}
I am trying the next grok but I am not getting what I want.
In the example you provided, a " is missing at the end, otherwise your grok pattern works for me.
You can add name to the fields so you can easily get them in graylog, for example:
%{NUMBER}:00 %{IP:ip} Action=%{QS:action} UUid=%{QS:uuid} inzone=%{QS:inzone} outzone=%{QS:outzone} src=%{QS:src} dst=%{QS:dst} proto=%{QS:proto} xlatesrc=%{QS:xlatesrc} NAT_rulenum=%{QS:natrulenum} NAT_addtnl_rulenum=%{QS:nataddtnlrulenum} rule=%{QS:rule} product=%{QS:product} service=%{QS:service} s_port=%{QS:sport}
Following is my log file:
2016-05-20 16:09:06.948UTC DEBUG spray.can.server.HttpServerConnection - Dispatching GET request to https://example.com/2.0/top.json to handler Actor[akka://test-server/system/IO-TCP/selectors/$a/1070#1248431494]
How do I filter "https://example.com/2.0/top.json" from the log file
The grok filter for this kind of log is
%{TIMESTAMP_ISO8601:timestamp}%{TZ:timezone} %{LOGLEVEL:loglevel} %{DATA:package} - %{DATA:dispatching} %{WORD:method} request to %{DATA:url} to handler Actor\[%{DATA:foo}\]
Where the url field = https://example.com/2.0/top.json.
If you want to remove the field you can use this logstash plugin, if you want to replace the field with something else you can use this logstash plugin.
I have 2 linux boxes setup in which 1 box contains one component which generates log and logstash installed in it to transfer the logs. And in other box I have redis elasticsearch and logstash. here logstash will act as logstash indexer to grok the data.
Now my problem is that in 1st box component generate new log file everyday, but only difference in log file name varies as per date.
like
counters-20151120-0.log
counters-20151121-0.log
counters-20151122-0.log
and so on, I have included below type of code in my logstash shipper conf file:
file {
path => "/opt/data/logs/counters-%{YEAR}%{MONTHNUM}%{MONTHDAY}*.log"
type => "rg_counters"
}
And in my logstash indexer, I have below type of code to catch those log files:
if [type] == "rg_counters" {
grok{
match => ["message", "%{YEAR}%{MONTHNUM}%{MONTHDAY}\s*%{HOUR}:%{MINUTE}:%{SECOND}\s*(?<counters_raw_data>[0-9\-A-Z]*)\s*(?<counters_operation_type>[\-A-Z]*)\s*%{GREEDYDATA:counters_extradata}"]
}
}
output {
elasticsearch { host => ["elastichost1","elastichost1" ] port => "9200" protocol => "http" }
stdout { codec => rubydebug }
}
Please note that this is working setup and other types log files are getting transfered and processed successfully, so there is no issue of setup.
The problem is how do I process this log file which contains date in it's file name.
Any help here?
Thanks in advance!!
Based on the comments...
Instead of trying to use regexp patterns in your path:
path => "/opt/data/logs/counters-%{YEAR}%{MONTHNUM}%{MONTHDAY}*.log"
just use glob patterns:
path => "/opt/data/logs/counters-*.log"
logstash will remember which files (inodes) that it's seen before.
when trying to load a file into elastic, using logstash that is running the config file below, I get the following output msgs on elastic and no file is loaded (when input is configured to be stdin everything seems to be working just fine)
[2014-08-20 10:51:10,957][INFO ][cluster.service ] [Max] added {[logsta
sh-GURWB02038-5480-4002][dstQagpWTfGkSU5Ya-sUcQ][GURWB02038][inet[/10.203.152.13
9:9301]]{client=true, data=false},}, reason: zen-disco-receive(join from node[[l
ogstash-GURWB02038-5480-4002][dstQagpWTfGkSU5Ya-sUcQ][GURWB02038][inet[/10.203.1
52.139:9301]]{client=true, data=false}])
Logstash Config File that I used is below:-
input {
file {
path => "D:/example.log"
}
}
output {
elasticsearch {
host => "localhost"
}
}
You might be missing start_position.
Try with something like this.
input {
file {
path => "D:/example.log"
start_position => "beginning"
}
}
Also take the "first contact" restriction into account, according to the documentation.
start_position
Value can be any of: "beginning", "end"
Default value is "end"
Choose where Logstash starts initially reading files: at the beginning or at the end.
The default behavior treats files like live streams and thus starts at the end.
If you have old data you want to import, set this to ‘beginning’
This option only modifies “first contact” situations where a file is new and not seen
before. If a file has already been seen before, this option has no effect.
Hope this helps.
From all the examples it seems that the syntext is:
output {
elasticsearch {
host => localhost
}
}
I am using logstash, elasticsearch and kibana to analyze my logs.
I am alerting via email when a particular string comes into the log via email output in logstash:
email {
match => [ "Session Detected", "logline,*Session closed*" ]
...........................
}
This works fine.
Now, I want to alert on the count of a field (when a threshold is crossed):
Eg If user is field, I want to alert when number of unique users go more than 5.
Can this be done via email output in logstash??
Please help.
EDIT:
As #Alcanzar told I did this:
config file:
if [server] == "Server2" and [logtype] == "ABClog" {
grok{
match => ["message", "%{TIMESTAMP_ISO8601:timestamp} %{HOSTNAME:server-name} abc\[%{INT:id}\]:
\(%{USERNAME:user}\) CMD \(%{GREEDYDATA:command}\)"]
}
metrics {
meter => ["%{user}"]
add_tag => "metric"
}
}
So according to above, for server2 and abclog I have a grok pattern for parsing my file and on the user field parsed by grok I want the metric applied.
I did that in the config file as above, but I get strange behaviour when I check logstash console with -vv.
So if there are 9 log lines in the file it parses the 9 first, after that it starts metric part but there the message field is not the logline in the log file but it's the user-name of my PC, thus it gives _grokparsefailure. Something like this:
output received {
:event=>{"#version"=>"1", "#timestamp"=>"2014-06-17T10:21:06.980Z", "message"=>"my-pc-name",
"root.count"=>2, "root.rate_1m"=>0.0, "root.rate_5m"=>0.0, "root.rate_15m"=>0.0,
"abc.count"=>2, "abc.rate_1m"=>0.0, "abc.rate_5m"=>0.0, "abc.rate_15m"=>0.0, "tags"=>["metric",
"_grokparsefailure"]}, :level=>:debug, :file=>"(eval)", :line=>"137"
}
Any help is appreciated.
I believe what you need is http://logstash.net/docs/1.4.1/filters/metrics.
You'd want to use a metrics tag to calculate the rate of your event, and then use the thing.rate_1m or thing.rate_5m in an if statement around your email output.
For example:
filter {
if [message] =~ /whatever_message_you_want/ {
metrics {
meter => "user"
add_tag => "metric"
}
}
}
output {
if "metric" in [tags] and [user.rate_1m] > 1 {
email { ... }
}
}
Aggregating on the logstash side is fairly limited. It also increases the state size thus memory consumption may grow. Alerts that run on the Elasticsearch layer offer more freedom and possibilities.
Logz.io alerts on top of ELK are offered in the below blog: http://logz.io/blog/introducing-alerts-for-elk/