Network-monitor-in-10-minutes-with-splunk
From Datateknik
- SNÄLLA*
Logga in med vanliga skill-bokningslösenordet och fixa fel/lägg till det som saknas /Robert
Contents |
Skapa kataloger
su - mkdir /var/log/ping-targets cd /var/log/ping-targets
Skapa skriptet
- nano monitor.sh
#!/bin/bash echo Killing Existing Pings pkill ping echo Pinging #external hosts for testing, run in background # BYT IP-NUMMER NEDAN, ANNARS DÖDAR NI MIN SERVER !!!! ping 193.10.236.123 > /var/log/ping-targets/srv1-logs.txt & ping 8.8.8.8 > /var/log/ping-targets/googledns-logs.txt & echo Process List of PING process ID PIDs pgrep -l ping
ls -l chmod +x monitor.sh ls -l
crontab
edit /etc/crontab and add
# monitor with ping # run every 30 minutes, every hour, every day */30 * * * * /var/log/ping-targets/monitor.sh >> /var/log/ping-targets/monitor.log 2>&1
SPLUNK
- install splunk do NOT install splunk if you alreade have installed it
wget -O splunk-6.5.3-36937ad027d4-linux-2.6-x86_64.rpm 'https://www.splunk.com/bin/splunk/DownloadActivityServlet?architecture=x86_64&platform=linux&version=6.5.3&product=splunk&filename=splunk-6.5.3-36937ad027d4-linux-2.6-x86_64.rpm&wget=true' echo "--------------------------" yum localinstall splunk-6.5.3-36937ad027d4-linux-2.6-x86_64.rpm rpm -ql splunk | grep splunk$ echo "--------------------------" # firewall-cmd --add-rich-rule='rule family="ipv4" port port="8000" protocol="tcp|udp" accept'
- login
Import Data
Import the directory /var/log/ping-.../
Search Data
Default search does not work, so change to
source="/var/log/ping-targets/*"
You should now see a table of data from the ping command
Now search for srv1 ping results
source="/var/log/ping-targets/srv1-logs.txt"
You should now only see server1 data
plotting
Create a time-graph by sending it to the timechart function (using a pipeline) and plot the time-variable that you can see in the data-table
source="/var/log/ping-targets/srv1-logs.txt" | timechart avg(time)
Select the /Visualization\-Tab, and change gte grafix to a bar-plot to your liking
If you see gaps in the plot, change it to
source="/var/log/ping-targets/srv1-logs.txt" | timechart cont=false avg(time)
Plotting it all together
source="/var/log/ping-targets/*.txt" | timechart cont=false avg(time) by source
Change the plot type bly clicking
- /Visualization\
- Bar plot (text)
- line plot (square image)
Create / Modify DASHBOARD
Click "Save As ..." to create a new (or add to existing) dashboard