Basic Troubleshooting Ubuntu Server

Basic Troubleshooting Ubuntu Server.
Method of Fault Analysis
Characterize the problem.
Reproduce the problem.
Find further information.
Fault Analysis: Hypothesis
Form a series of hypotheses.
Pick a hypothesis to check.
Test the hypothesis.
Method of Fault Analysis, Again
Note the results, then reform or test a new hypothesis if needed.
If the easier hypotheses yield no positive result, further characterize problem.
Fault Analysis : Gathering Data
tail -f logfile.
*.debug in syslog.
--verbose or –debug option in application.
Network Tools Troubleshooting
ping.
traceroute.
telnet.
netstat.
nmap.
tcpdump.
iptables.
Analyze your system
Disk usage.
Memory.
Apps Process.
Port Listen.
The simple step
Copy paste your error to google.
Ask your friend, forum and etc.
Learn from concept
OSI Layer.
About linux and your service (http, dns, ftp).
Some language (python, bash, php and etc).
Baca juga artikel Tentang Filosofi Ubuntu.

Sumber : Forum Ubuntu Indonesia

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