I have logs on one server and ELK stack -- ElasticSearch, Kibana, Logstash -- on another. I want to display the logs, which are on the 1st server, in Kibana, which is on the 2nd one.
How can I do that? Is logstash capable of retrieving logs over the internet from a remote server?
Your best bet is to use Filebeat on server one and send the logs to the logstash server.
https://www.elastic.co/products/beats/filebeat
Logstash can't access remote file, you'll have to use a shipper, like beaver, using udp or tcp transport:
Beaver documentation.
Related
In my present lab setup I have few windows machines and linux machines with ossec agent installed and sending logs to ossec server.
From OSSEC server I am forwarding the logs via syslog output to logstash.
In logstash I am not doing any modification, simply I am forwarding the plain log to qradar as received(I verified it). It have alert level, rule and event. But in qradar it's showing single log source that is the logstash server.
From logstash I send the logs as syslog to qradar.
Ideally, in qradar all machines which are sending logs to ossec should be listed in log sources, but it's not happening.
What's I am doing wrong here? Any help.. I followed this link https://www.ibm.com/support/knowledgecenter/en/SS42VS_DSM/t_DSM_guide_OSSEC_cfg.html instead directly sending logs to qradar I placed a logstash in between.
I do not see anything wrong, if you have a Logstash between your devices and QRadar then the only log source that QRadar knows about is your Logstash server, it is the only service sending data to it.
If you want to see your ossec devices listed as log sources in QRadar I think that you will need to ship the logs directly to QRadar.
edit: I do not know QRadar very well, but if it is possible to use tags or custom fields to identifier a log source, maybe you can add a custom field in your logstash pipeline and QRadar will use this field to know that the log source is not your logstash server, but other device.
I was working on an architecture where we receive the logs from Syslog/rsyslog sources to a central syslog server. I have now three applications on the same server who also want to receive a copy of the logs. Is there a way I can do that with the configurations on the central server without the source syslogs sending it to multiple port?
I am trying to use gelf input plugin for some ESB logs with GELF Layout (just started ELK Stack for logging). I am successful in getting the logs through a configured port. As there are around 100 apps (will keep adding) and some are WebServices which keeps spitting logs is it ok to have all logs through a single port as would that create any performance problem or missing some logs? Like LS - File beat has that backpressure-sensitive protocol, is there something like this in gelf Input plugin?
input {
gelf{
host => "testelkstacksrvr1"
port => 9090
}
}
You should use GELF over TCP. NXLog can also do this and flow-control will prevent logs getting dropped.
I am attempting to use logstash pluin for jenkins https://wiki.jenkins-ci.org/display/JENKINS/Logstash+Plugin and have it configured to work with elasticsearch. Seems I do not know why my logs from jenkins are not being forwarded I have logstash runnning on port 6379 and looking for fetch and sort a trace.log
In which port is your elastic search running? You need to configure the host and port of the elastic search in your Jenkins instance. For example http::9200. in general you could access the logs of the Jenkins in Elastic search under port 9200.
What do your logstash config files look like; in particular your input block? Is 6379 the port you have logstash running on? I think you may want to try specifying elasticsearch host & port info here. Even though it's a logstash plugin, it seems to be skipping logstash all together and sends it straight to the indexer (in your case elasticsearch).
I have some logs that I want to use logstash to collate . It will be the logstash agent as a shipper on the source servers going to a central logging server . I want to use UDP from the shipper to the central log so I can be totally isolated should the logger fail ( I dont want the 70 odd production servers affected in any way ) . The only way I can see of using udp for the transport is to output using syslog format . Does anyone know of a way I can output UDP natively from logstash ? ( The docs hint at it but I must be missing something on the TCP side ?)
My understanding is that the typical approach would be to use something a bit more lightweight (rsyslog, or even Lumberjack) running on the remote machine, that is sending data to your central logstash server.
It sounds like you want logstash agents (forwarders) to be running on each server and sending the data to the broker. This blog post (also linked as an example below), gives a nice explanation of why they chose not to use logstash forwarders on their remote servers - they eat too much RAM
I use a setup where rsyslog sends UDP data to logstash directly. I've also used a setup where rsyslog was the receiving log server, and aggregated the logs into separate logfiles (based on server hostname) and then logstash read from those files.
For some example configs see the following:
Logstash with Lumberjack and ES
Logstash with rsyslog and ES
I suggest the rsyslog approach, as the chances that rsyslog is already running on your server is higher than Lumberjack. Also there is quite a bit more documentation on rsyslog than Lumberjack. Start off simple, and add more complexity later on, if you feel the need.
You can output UDP natively using the UDP output plugin
http://logstash.net/docs/1.2.1/outputs/udp
By setting the codec field, you can choose whatever output format you like (e.g. JSON)