1. IPv6 DNS主機Smokeping 監測
電算中心呂芳發
2011年11月12日

2. 大綱
Smokeping 簡介
Smokeping 安裝
Config 設定檔說明 結論

3. SmokePing簡介
SmokePing 用來從外部檢測服務系統的latency ，用 Perl 可以快速自製檢測工具，並自動存成 RRDTool DB 與圖檔，內建的 Alert 支援 Real-Time Traffic Pattern Detection，可以非常有彈性的用以自定警報通知。

4. SmokePing特性 跟蹤網絡延遲(latency)。 延遲(latency)視覺化管理工具。 圖形資源管理。 可彈性加入延遲測量工具。
可配置警報系統。
“有趣”的圖形延遲圖表。
免費軟體

5. 如何看 Smokeping 圖 藉著發送測試數據封包量測往返時間。
對於每一cycle測量 smokeping發送多個數據封包。 在各種不同的往返時間，選擇中位數（即中間的一個）。 即當有10時間值，選擇第5個時間值繪製, 其他值繪製成連續的灰色色調的背景。
Data packets loss , 以不同顏色表示掉封包比率。

6. 如何看 Smokeping 圖-簡圖 AV MD AV LS AV SD AM / AS 平均中位數 平均損失
在每一輪的多次測量的平均標準偏差
AM / AS
平均中位數和平均標準差的比率

7. 如何看 Smokeping 圖-詳細圖 AVG，MAX，MIN，now SD am/ S 平均，最高，最低，目前的中位數 標準差中位數
平均中位數與標準差的比率

8. Smokeping install Smokeping是用perl所寫的程序，不需要安裝。
用perl所寫，需要使用到一些工具像是rrdtool、fping、libwww-perl等，以及perl的module。需要先安裝好，當Smokeping 服務啟動時會自動簡查所需要的程序是否都安裝完成。

9. Smokeping install using CentOS 5.7
# yum update # rpm -Uhv
# yum install httpd # yum install rrdtool # yum install fping # yum install echoping # yum install curl # yum install perl perl-Net-Telnet perl-Net-DNS perl-libwww-perl perl-IO-Socket-SSL perl-Socket6 perl-CGI-SpeedyCGI

10. Smokeping install Use the FPing6 probe Download fping6 :
wget
tar xvzf fping-2.4b2_to-ipv6.tar.gz
cd fping-2.4b2_to-ipv6
configure
make
make install

11. Smokeping install
# wget # tar zxvf smokeping tar.gz # mv smokeping /opt/smokeping # cd /opt/smokeping
# cd bin/ # cp smokeping.dist smokeping # cd ../htdocs/ # cp smokeping.cgi.dist smokeping.cgi

12. Smokeping install
# cp tr.cgi.dist tr.cgi # cd ../etc/ # cp config.dist config # cp basepage.html.dist basepage.html # cp smok .dist smok # cp tmail.dist tmail # cp smokeping_secrets.dist smokeping_secrets # chmod 600 /opt/smokeping/etc/smokeping_secrets

13. Smokeping install # vi /opt/smokeping/bin/smokeping Replace this:1 2 3 4 5 6 7 8 9
#!/usr/sepp/bin/perl w
# -*-perl-*-
use lib qw(/usr/pack/rrdtool mo/lib/perl);
use lib qw(lib);
use Smokeping ;
Smokeping::main("etc/config.dist");
With This: 1 2 3 4 5 6 7 8 9
#!/usr/bin/perl -w
# -*-perl-*-
use lib qw(/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/RRDs/);
use lib qw(/opt/smokeping/lib);
use Smokeping ;
Smokeping::main("/opt/smokeping/etc/config");

14. Smokeping install # vi /opt/smokeping/htdocs/smokeping.cgi
Replace this: 1 2 3 4 5 6 7 8 9 10
#!/usr/sepp/bin/speedy -w
# -*-perl-*-
use lib qw(/usr/pack/rrdtool to/lib/perl);
use lib qw(/home/oetiker/data/projects/AADJ-smokeping/dist/lib);
use CGI::Carp qw(fatalsToBrowser);
use Smokeping ;
Smokeping::cgi("/home/oetiker/data/projects/AADJ-smokeping/dist/etc/config");

15. Smokeping install With this: 1 2 3 4 5 6 7 8 9 10 #!/usr/bin/speedy -w
# -*-perl-*-
use lib qw(/usr/lib/perl5/vendor_perl/5.8.8/i386-linux-thread-multi/auto/RRDs);
use lib qw(/opt/smokeping/lib);
use CGI::Carp qw(fatalsToBrowser);
use Smokeping ;
Smokeping::cgi("/opt/smokeping/etc/config");

16. Smokeping install
# cd /opt/smokeping/htdocs # vi /opt/smokeping/htdocs/tr.cgi
Replace this: 1 2 3 4
#!/usr/sepp/bin/speedy w
use strict;
use lib qw(/home/oposs/smokeping/software/lib);
use lib qw(perl);

17. Smokeping install With this: 1 2 3 4 #!/usr/bin/speedy -w use strict;
use lib qw(/opt/smokeping/lib);
use lib qw(perl);

18. Smokeping install
# mkdir -p /var/www/html/smokeping/img /var/www/html/smokeping/script/ /opt/smokeping/data /opt/smokeping/var # chown -R apache:apache /var/www/html/smokeping/img
# ln -s /opt/smokeping/htdocs/cropper /var/www/html/smokeping/cropper # ln -s /opt/smokeping/htdocs/resource /var/www/html/smokeping/resource # ln -s /opt/smokeping/htdocs/script/Tr.js /var/www/html/smokeping/script/Tr.js # ln -s /opt/smokeping/htdocs/smokeping.cgi /var/www/html/smokeping/smokeping.cgi # ln -s /opt/smokeping/htdocs/tr.cgi /var/www/html/smokeping/tr.cgi

19. Smokeping install vi /etc/httpd/conf/httpd.conf
change > #AddHandler cgi-script .cgi to > AddHandler cgi-script .cgi
Under <Directory “/var/www/html”>
change > Options Indexes FollowSymLinks to > Options Indexes FollowSymLinks ExecCGI
AddDefaultCharset UTF-8

20. Smokeping install # vi /opt/smokeping/etc/basepage.html Change this: 12 3 4
<script src="cropper/lib/prototype.js" type="text/javascript"></script>
<script src="cropper/lib/scriptaculous.js?load=builder,dragdrop" type="text/javascript"></script>
<script src="cropper/cropper.js" type="text/javascript"></script>
<script src="cropper/smokeping-zoom.js" type="text/javascript"></script> 1 2 3 4
<script src="/smokeping/cropper/lib/prototype.js" type="text/javascript"></script>
<script src="/smokeping/cropper/lib/scriptaculous.js?load=builder,dragdrop" type="text/javascript"></script>
<script src="/smokeping/cropper/cropper.js" type="text/javascript"></script>
<script src="/smokeping/cropper/smokeping-zoom.js" type="text/javascript"></script>
To this:

21. Smokeping install # vi /opt/smokeping/htdocs/tr.html Change this: 1 23 4 5 6 7
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>SmokeTrace</title>
<script type="text/javascript" src="script/Tr.js"></script>
</head>
</html> 1 2 3 4 5 6 7
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>SmokeTrace</title>
<script type="text/javascript" src="/script/Tr.js"></script>
</head>
</html
To this:

22. Smokeping install
# ln -s /opt/smokeping/htdocs/tr.html /var/www/html/smokeping/tr.html
# vi /opt/smokeping/etc/config

23. Smokeping install # vi /etc/init.d/smokeping
# chmod 755 /etc/init.d/smokeping
Apache and Smokeping startup
# /sbin/chkconfig smokeping on # /sbin/chkconfig httpd on # /sbin/service smokeping start # /sbin/service httpd start

24. Smokeping install
browse

25. Smokeping config

26. Config *** General *** owner = ncuadmin
contact =
mailhost =
sendmail = /usr/sbin/sendmail
imgcache = /var/www/html/smokeping/img
imgurl =
datadir = /opt/smokeping/data
piddir = /opt/smokeping/var
cgiurl =

27. Config *** Alerts *** to = center25@cc.ncu.edu.tw (設定要收到警報信件的信箱)
from = (設定本機發信的帳號 )
+someloss
 type = loss
 # in percent
 pattern = >20%,>20%
comment =
#說明 : 當連續兩個週期封包都Loss高於20% 時就alert
*** Database ***
step     = 300       #300秒
pings    = 20        #ping 20次

28. Config *** Presentation ***
template = /opt/smokeping/etc/basepage.html
charset = UTF-8
+ overview
width = 600
height = 50
range = 10h
+ detail
height = 200
unison_tolerance = 2
"Last 3 Hours" 3h
"Last 30 Hours" 30h
"Last 10 Days" 10d
"Last 400 Days" 400d

29. Config *** Probes *** + FPing binary = /usr/local/sbin/fping6 + DNS
binary = /usr/bin/dig
pings = 5
step = 180

30. Config *** Targets *** probe = FPing + DNS menu = Top probe = DNS
title = Network Latency Grapher
remark = Welcome to this SmokePing website.
+ network
menu = Net latency
title = Network latency (ICMP pings)
++ ns1
host = 2001:288:3001:1::31
++ ns2
host = 2001:288:3000:227::4
+ DNS
probe = DNS
menu = DNS latency
title = Service latency (DNS)
++ dns1
host = 2001:288:3001:1::31
++ dns2
host = 2001:288:3000:227::4

31. Config

32. Config

33. Config-curl *** Probes *** + Curl binary = /usr/bin/curl step = 60
# a default for this target-specific variable
urlformat =
*** Targets ***
probe = Curl
menu = Top
title = Network Latency Grapher
remark = Welcome to this SmokePing website.
+ HTTP
menu = http
title = HTTP latency
++ ncuweb
menu = ncuweb
title = HTTP latency for ncuweb
host =

34. Config-curl

35. Config-echoping *** Probes *** + EchoPingHttp
binary = /usr/bin/echoping
*** Targets ***
probe = EchoPingHttp
menu = Top
title = Network Latency Grapher
remark = Welcome to this SmokePing website.
+ HTTP
menu = http
title = HTTP latency
++ ncuweb
menu = ncuweb
title = HTTP latency for ncuweb
host =

36. Config-echoping

37. 結論
好用的延遲(latency)狀態量測工具
除了監測封包量測往返時間, 搭配其他工具可監測web,ftp 下載的時間及dns查詢時間

38. Thank You!