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Tracking network latency on FreeBSD with SmokePing
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Introduction
Tracking network latency should be an integral of anyone’s server management routine. It is essential that you monitor this regularly so you can get a better picture of your server’s health and performance. It can help you determine if your network is overloaded or indicate if there is an incorrect router configuration or downed device. Catching this kind of issues at the right time will help prevent major failures later on.
SmokePing is a network latency tracking tool that you may find very useful when monitoring network latency. This tutorial will assist you in setting up SmokePing with Apache on your server(s) running FreeBSD.
All you need is a FreeBSD 11 server with a root user and Apache (and its FastCGI module) already installed and configured.
Installing and configuring SmokePing
- The installation is quite simple because SmokePing exists already in the package repository. To proceed, enter the command below:
- Next, open the file at /usr/local/etc/smokeping/config, which you’ll need to edit to customize a few fields (the ones bolded below):
- Comment out the entire ***Slaves*** section.
- Lastly, we turn to Targets.
Simply put, targets are a hierarchical list of hosts which mark the limits of the network connections the system should monitor.
In this tutorial, we’ll be setting up a configuration that monitors the latency between your server and two FreeBSD pkg mirrors.
Thus, we’ll have a total of three graphs.
- In the same file as above, navigate to the ***Targets*** section. What you’ll do first is delete the sample configuration so the end of your file looks like this:
- Next, copy and paste the following configuration under the existing default settings.
- Below it, add one more section to combine multiple targets into one graph.
Enabling the services
- Next, we’ll start connecting and enabling the services.
For that, you’ll need to create a configuration file for Apache in /usr/local/etc/apache24/Includes/ called smokeping.conf, like so: - Then, paste this into the newly created file:
- Now, enter these to commands so that default service configuration for Apache and SmokePing can start the processes at boot:
- Next, start Apache:
- Then, start the SmokePing service as well:
![Centos 7 install nginx Centos 7 install nginx](https://computingforgeeks.com/wp-content/uploads/2018/08/install-librenms-centos7-db-settings.png)
- To access SmokePing’s web interface, go to http://your_server_ip/smokeping in your favorite browser.
By navigating the menu on the left, and then clicking Targets, you will hopefully see the graphs that we’ve previously created and customized.
Congratulations
And that is all! You can track network latency on your server with SmokePing!
SmokePing 是一套相當實用的網路監督工具, 畫出的圖片也很漂亮。雖然要安裝 SmokePing 比較麻煩, 但只要透過 yum 安裝 SmokePing 所需的套件就方便很多了, 以下是 RHEL 及 CentOS 安裝及配置 SmokePing 的方法。
首先啟用 EPEL Repo:
接著安裝 SmokePing 所需的套件:
# yum install perl httpd httpd-devel mod_fcgid rrdtool perl-CGI-SpeedyCGI fping rrdtool-perl perl-Sys-Syslog
然後安裝以下 CPAN 模組:
# yum install perl-CPAN perl-local-lib perl-Time-HiRes
安裝編譯器, 用作編譯 SmokePing 原始碼:
—————————————————————————————————————–
安裝好所需的套件後, 現在到官網下載 SmokePing 原始碼安裝, 目前最新的版本是 2.6.11: Wedding album maker gold.
# wget http://oss.oetiker.ch/smokeping/pub/smokeping-2.6.11.tar.gz
解壓縮原始碼:
安裝 SmokePing 所需的 Perl 模組, 以及編譯 SmokePing:
# cd smokeping-2.6.11/
# ./setup/build-perl-modules.sh
# mkdir /opt/smokeping
# cp -R thirdparty /opt/smokeping/
# ./configure –prefix=/opt/smokeping
# make install
# ./setup/build-perl-modules.sh
# mkdir /opt/smokeping
# cp -R thirdparty /opt/smokeping/
# ./configure –prefix=/opt/smokeping
# make install
安裝好 SmokePing 後, 現在是配置 SmokePing 的設定檔, 輸入以下指令:
2 | # for foo in *.dist; do cp $foo 'basename $foo .dist'; done |
然後開啟 Apache 的設定檔 httpd.conf:
# vi /etc/httpd/conf/httpd.conf
找到設定 DirectoryIndex 的一行, 加入 smokeping.fcgi 及AddHandler 部份, 例如:
DirectoryIndex index.html index.html.var smokeping.fcgi
AddHandler cgi-script .cgi
AddHandler cgi-script .cgi
開啟 /etc/httpd/conf.d/smokeping.conf 檔案, 改成這樣:
![Poser 11 serial number](https://i0.wp.com/softwaresdaily.com/wp-content/uploads/2017/11/download-3-23.jpg?resize=300%2C168)
![Install Install](https://1.bp.blogspot.com/-zhawYwgc5m0/V8wI7M8kP-I/AAAAAAAAA2E/mjU7Ojuqp4MR2iNU1p1kcH899GB4Ddh5ACLcB/s1600/perl.png)
2 | Options+ExecCGI |
執行以下指令, 建立 SmokePing 儲存資料目錄及設定權限:
# mkdir /opt/smokeping/img
# mkdir /opt/smokeping/data
# mkdir /opt/smokeping/var
# mkdir /opt/smokeping/cache
# chown -R apache:apache /opt/smokeping/img
# chown -R apache:apache /opt/smokeping/cache
# ln -s /opt/smokeping/htdocs /var/www/html/smokeping
# ln -s /opt/smokeping/img /var/www/html/smokeping
# ln -s /opt/smokeping/cache /var/www/html/smokeping
# chmod 600 /opt/smokeping/etc/smokeping_secrets
# chmod 600 /opt/smokeping/etc/smokeping_secrets.dist
# chown -R apache:apache /var/www/html/smokeping
# mkdir /opt/smokeping/data
# mkdir /opt/smokeping/var
# mkdir /opt/smokeping/cache
# chown -R apache:apache /opt/smokeping/img
# chown -R apache:apache /opt/smokeping/cache
# ln -s /opt/smokeping/htdocs /var/www/html/smokeping
# ln -s /opt/smokeping/img /var/www/html/smokeping
# ln -s /opt/smokeping/cache /var/www/html/smokeping
# chmod 600 /opt/smokeping/etc/smokeping_secrets
# chmod 600 /opt/smokeping/etc/smokeping_secrets.dist
# chown -R apache:apache /var/www/html/smokeping
現在建立 SmokePing 的設定檔, 要根據自己的需要修改某些設定:
範例檔案:
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 130 132 134 | contact=you@youremail.com mailhost=SMTP Server(Ignore ifyou donothave smtp server) # NOTE: do not put the Image Cache below cgi-bin # since all files under cgi-bin will be executed .. this is not imgcache=/opt/smokeping/cache datadir=/opt/smokeping/data cgiurl=http://some.url/smokeping.cgi tmail=/opt/smokeping/etc/tmail.dist syslogfacility=local0 # disable this to revert to the old behaviour to=you@youremail.com type=loss pattern=>0%,*12*,>0%,*12*,>0% pings=20 # consfn mrhb steps total AVERAGE0.511008 MIN0.5124320 AVERAGE0.5144720 MIN0.5144720 ***Presentation *** template=/opt/smokeping/etc/basepage.html.dist +charts menu=Charts sorter=StdDev(entries=>4) menu=Std Deviation sorter=Max(entries=>5) menu=by Max sorter=Loss(entries=>5) menu=Loss sorter=Median(entries=>5) menu=by Median height=50 height=200 'Last 30 Hours'30h 'Last 400 Days'400d #+ hierarchies #title = Host Owner #title = Location ***Probes *** +FPing binary=/usr/sbin/fping ***Slaves *** +boomer color=0000ff +slave2 color=00ff00 ***Targets *** probe=FPing menu=Top remark=Welcome tothe SmokePing website of xxx Company. Here you will learn all about the latency of our network. +Server title=google.com host=www.google.com |
然後啟動 httpd:
Install Python On Centos 7
設定 SmokePing 開機自動啟動, 需要下載 SmokePing 的開機 script 到 /etc/init.d/ 目錄, 及設定可執行權限:
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Centos 7 Install Gnome
# cd /etc/init.d/
# wget http://oss.oetiker.ch/smokeping/pub/contrib/smokeping-start-script
# chmod 755 smokeping-start-script
# wget http://oss.oetiker.ch/smokeping/pub/contrib/smokeping-start-script
# chmod 755 smokeping-start-script
將 smokeping-start-script 第 10 行的 SMOKEPING binary 檔位置, 改成這樣:
Centos 7 Install Desktop Gui
SMOKEPING=/usr/local/smokeping/bin/smokeping
最後啟動 SmokePing 便完成了: