smokeping with tcpping centos 7 环境

本次环境采用centos7，使用centos6的同学就洗洗睡吧，此外一定要做好时间同步，并且关闭防火墙以及selinux，不然安装可能会失败的哦。
时间同步方式如下：

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yum install ntpdate -y

ntpdate times.aliyun.com

　　

安装依赖：

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yum groupinstall "Compatibility libraries" "Base" "Development tools" -y    #很多同学在装系统的时候选择包有问题，因此安装这些保证环境一致性

yum install -y perl perl-Net-Telnet perl-Net-DNS perl-LDAP perl-libwww-perl perl-IO-Socket-SSL perl-Socket6 perl-Time-HiRes perl-ExtUtils-MakeMaker rrdtool rrdtool-perl curl  httpd httpd-devel gcc make  wget libxml2-devel libpng-devel glib pango pango-devel freetype freetype-devel fontconfig cairo cairo-devel libart_lgpl libart_lgpl-devel perl-CGI-SpeedyCGI perl-Sys-Syslog popt-devel libidn-devel fping

yum install perl-core

　　

安装tcpping：

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cd /usr/bin

wget http://www.vdberg.org/~richard/tcpping

chmod 755 tcpping

　　

该tcpping是bash脚本写的，不过有点问题，后续会教你怎么改

安装smokeping：

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wget https://oss.oetiker.ch/smokeping/pub/smokeping-2.7.1.tar.gz

tar -xf smokeping-2.7.1.tar.gz

cd smokeping-2.7.1

./configure --prefix=/opt/smokeping

make install

　　

修改配置：

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cd /usr/local/smokeping/

mkdir cache data var

chown apache:apache cache data var

chown apache:apache /var/log/smokeping.log

chmod 600 /usr/local/smokeping/etc/smokeping_secrets.dist

cd /usr/local/smokeping/htdocs

mv smokeping.fcgi.dist smokeping.fcgi

cd /usr/local/smokeping/etc

mv config.dist config

　　

编辑config：

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*** Probes ***

 

+TCPPing

 

binary = /usr/bin/tcpping # mandatory

forks = 5

offset = 50%

step = 60

timeout = 15

 

# The following variables can be overridden in each target section

pings = 20

port = 80

 

# [...]

 

*** Targets ***

 

probe = TCPPing # if this should be the default probe

menu = Top

title = Network Latency Grapher

remark = Welcome to the SmokePing website of xxx Company. \

         Here you will learn all about the latency of our network.

 

 

# [...]

 

+ mytarget

probe = TCPPing # if the default probe is something else

menu = baidu.com

title = baidu.com

host = www.baidu.com

pings = 20

port = 80

　　

apache配置修改：

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Alias /cache "/opt/smokeping/cache/"

Alias /cropper "/opt/smokeping/htdocs/cropper/"

Alias /smokeping "/opt/smokeping/htdocs/smokeping.fcgi"

Alias /css "/opt/smokeping/htdocs/css/"

Alias /js "/opt/smokeping/htdocs/js/"

<Directory "/opt/smokeping">

AllowOverride None

Options All

AddHandler cgi-script .fcgi .cgi

Order allow,deny

Allow from all

Require all granted

DirectoryIndex smokeping.fcgi

</Directory>

　　

启动smokeping，重启apache

自此，smokeping结合tcpping就安装完成了。不过你过儿会发现啥数据都没有，这是因为tcptraceroute包改变了所导致的。我从网上看到别人的tcpping结果应该是：

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$ tcpping www.cisco.com

seq 0: tcp response from www.cisco.com (198.133.219.25) [open]  155.513 ms

seq 1: tcp response from www.cisco.com (198.133.219.25) [open]  148.907 ms

seq 2: tcp response from www.cisco.com (198.133.219.25) [open]  153.686 ms

seq 3: tcp response from www.cisco.com (198.133.219.25) [open]  150.864 ms

seq 4: tcp response from www.cisco.com (198.133.219.25) [open]  147.917 ms

　　

我的：

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$ tcpping www.baidu.com

traceroute to www.baidu.com (180.97.33.108), 255 hops max, 60 byte packets

seq 0: tcp response from 180.97.33.108 (180.97.33.108) <syn,ack>  8.159 ms

traceroute to www.baidu.com (180.97.33.107), 255 hops max, 60 byte packets

seq 1: tcp response from 180.97.33.107 (180.97.33.107) <syn,ack>  8.288 ms

traceroute to www.baidu.com (180.97.33.108), 255 hops max, 60 byte packets

seq 2: tcp response from 180.97.33.108 (180.97.33.108) <syn,ack>  8.112 ms

traceroute to www.baidu.com (180.97.33.108), 255 hops max, 60 byte packets

seq 3: tcp response from 180.97.33.108 (180.97.33.108) <syn,ack>  8.160 ms

traceroute to www.baidu.com (180.97.33.107), 255 hops max, 60 byte packets

seq 4: tcp response from 180.97.33.107 (180.97.33.107) <syn,ack>  8.484 ms

　　

发觉我多了一行traceroute to …，怪不得没数据，这里需要修改tcpping的脚本：

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vi /usr/bin/tcpping

ttr=`tcptraceroute -f ${ttl} -m ${ttl} -q ${q} -w ${w} $*  2>&1`

改成

ttr=`tcptraceroute -f ${ttl} -m ${ttl} -q ${q} -w ${w} $* |grep -v traceroute 2>&1`

 

  

ttr=`tcptraceroute -f ${ttl} -m ${ttl} -q ${q} -w ${w} $*  2>/dev/null`

改成

ttr=`tcptraceroute -f ${ttl} -m ${ttl} -q ${q} -w ${w} $* |grep -v traceroute 2>/dev/null`

　　

重启smokeping后你发现有数据了，可是为啥延迟都是恒定的255ms呢，这里又牵涉到另一个smokeping的bug了，这个bug十年前就有了，作者一直没修改，链接：http://norman.rasmussen.co.za/62/tcpping-and-smokeping/

你会发现你用tcpping -C -x 1 www.baidu.com 80 永远返回是255，这就是问题。

照着如下修改：

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vi /usr/bin/tcpping

rtt=`echo "${ttr}" | sed 's/.*] //' | awk '{print $1}'`

改成

rtt=`echo "${ttr}" | sed 's/.*] //' | awk '{print $5}'`

　　

再重启下smokeping，好了一切正常了