Monitoring

From Systerserver

Contents 1 various 2 smartmontools 3 hdparm 4 iotop 5 temperature 6 sysstat 7 acct 8 networking 9 monit en munin 10 intrusion deetection 11 network 12 diagnostic tools 13 our Axis 210 network camera

various

• vmstat 10 10
• cpufrequtils
• ps auxf | sort -nr -k 4 | head -10 (top 10 memory consuming processes)
• ps auxf | sort -nr -k 3 | head -10 (top 10 processor consuming processes)

smartmontools

• Self-Monitoring, Analysis, and Reporting Technology
• needs a MTA; if one isn't installed you'll get exim/sendmail on debian, and postfix on ubuntu as a dependency when installing smartmontools.
• http://blog.shadypixel.com/monitoring-hard-drive-health-on-linux-with-smartmontools/
• for health of your disk(s) you'd run
• sudo smartctl -H /dev/sda

hdparm

• hdparm -Tt /dev/sda

iotop

• iostat -o
• iostat -Co (to not clear the screen)

temperature

• of the disks: hddtemp, ie hddtemp /dev/sda
• of the motherboard: cat /proc/acpi/thermal_zone/TZ*/temperature
• of the processor: same as above.
• first run "sensors-detect", then run "sensors"
• installed hddtemp, lm-sensors, mbmon and xsensors (gui for lm-sensors)

sysstat

• user sar (system activity reporter) to view collected stats

      sar -u 2 5
             Report  CPU  utilization  for  each  2 seconds. 5 lines are dis-
             played.

      sar -r -n DEV -f /var/log/sysstat/sa16
             Display memory, swap space and network statistics saved in daily
             data file 'sa16'.

      sar -A
             Display all the statistics saved in current daily data file.

• install isag (interactive system activity grapher) to view stats in a graph

• http://www.linuxtroubleshooting.com/wiki/index.php?title=Main_Page#sysstat.2Fsar

• iostat (comes with sysstat install)

acct

• process accounting
• lastcomm

networking

• ethtool - has replace mii-tool
• mii-tool - for setting the speed and duplex of your NIC card
• nethogs

monit en munin

• monit for monitoring and triggering; munin for the graphs

intrusion deetection

• AIDE
• afick

network

• netstat
• ss
• ngrep
• iptraf
• ethtool -t eth0 (test)
• ethtool -i eth0 (driver information)
• ethtool -S eth0 (gather statistics)
• ethtool -p eth0 15 (makes your nic blink for 15 seconds, usefull if you have two or more nics and don know which is which)
• arp -n

diagnostic tools

• cpuburn, is a stress test
• to see if you have a faulty CPU, power supply, or cooling system
• scan a windows pc for malware:
• boot a linux live cd and install avast4workstation, or clamav
• make a kavrescue boot disk

our Axis 210 network camera

• 00:40:8C:79:91
• default ip 192.168.0.90