1. autostatus Graduate Student: Yan-Shiang Wang Adviser: Quincy Wu

2. outline work principle install and operate similar application

3. what is autostatus ? network and server monitoring program speed efficiency accuracy dependency http://www.angio.net/consult/autostatus/

4. work principle ICMP (Internet Control Message Protocol) fping

5. ICMP ( Internet Control Message Protocol ) error detect and response ensure the network connecting state and accuracy deliver by IP Echo Request/Reply type=8/0 ex: ping Destination Unreachable type=3 Source Quench type=4 Routing redirect type=5 Time Exceeded type=11 ex: traceroute IP header error type=12 Address Mask Request/Reply type=17/18

6. fping a ping(1) like program which uses the ICMP echo request to determine if a host is up. you can specify any number of hosts on the command line, or specify a file containing the lists of hosts to ping. fping will send out a ping packet and move on to the next host in a round-robin fashion. fping -A :show systems that are alive even DNS name fping -c # :echo number of request packets fping -d :input a ip address and print hostnames fping -e :show round-trip time of packet fping -q :just show exit status

7. install and operate perl5.0 required fping required tar zxvf autostats-1.2.1.tar.gz make install clean edit configure file edit hosts file run

8. configure file statusfile /home/autostatus/local.status hostfile /home/autostatus/local.hosts baseurl http://10.10.16.87/~autostatus/autostatus iconurl http://10.10.16.87/~autostatus/icons outpage /home/autostatus/public_html/index.html email root@localhost emerg root@localhost content_subject on

9. hosts file %HTML: Routers mygw 10.10.16.254 none autostatus@localhost main gateway %HTML: Servers csie www.csie.ncnu.edu.tw mygw autostatus@localhost Is CSIE Alive? k700i 10.10.16.87 mygw autostatus@localhost Is k700i Alive? yahoo www.yahoo.com mygw autostatus@localhost Is Yahoo! Alive? %HTML: Services yahoo:http www.yahoo.com yahoo autostatus@localhost Yahoo! serving? k700i:http 10.10.16.87 k700i autostatus@localhost 87? csie:http www.csie.ncnu.edu.tw csie autostatus@localhost csie?

10. similar application SNMP (Simple Network Management Protocol) MRTG