Linux Tutorial | Matt Cooper - Open Source Support
Linux Tutorial | Matt Cooper - Open Source Support
graylog

Graylog – Display Cluster Information via API

Browse to: http://graylog.host.net/api/cluster?pretty=true

Below is a result from a 1 node cluster:

{
  "6f8add5d0-f88-5ood9-de24-sdf78df9sd8f" : {
    "facility" : "graylog-server",
    "codename" : "Stiegl",
    "node_id" : "6f8add5d0-f88-5ood9-de24-sdf78df9sd8f",
    "cluster_id" : "ac27f8bc-472d-448a-a943-fdsfs89dfsdfc",
    "version" : "2.2.3+7adc951",
    "started_at" : "2019-03-25T10:47:58.384Z",
    "hostname" : "graylog.host.net",
    "lifecycle" : "running",
    "lb_status" : "alive",
    "timezone" : "Etc/UTC",
    "operating_system" : "Linux 4.14.77-70.59.amzn1.x86_64",
    "is_processing" : true
  }
}
March 26, 2019by Matt Cooper
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tcpdump

TCPDump UDP

tcpdump -i eth0 udp 'port 514'

March 26, 2019by Matt Cooper
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openssl

Openssl – Generate new csr

openssl req -new -newkey rsa:2048 -nodes -keyout private.key -out mycsr.csr

February 11, 2019by Matt Cooper
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openssl

Openssl – check CSR file

openssl req -in mycsr.csr -noout -text

February 11, 2019by Matt Cooper
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Apache, Command line Tutorial

How much memory is apache using?

ps -o rss -C httpd | tail -n +2 | (sed 's/^/x+=/'; echo x) | bc

December 23, 2018by Matt Cooper
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About me

Hi, I'm Matt Cooper. I started this blog to pretty much act as a brain dump area for things I learn from day to day. You can contact me at: matt@linuxtutorial.co.uk

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