Eric @ EricBess WebHome

Google Analytics is Google's a free web analytics service, since its inception, that is, critically-acclaimed. Google Analytics is very powerful, as long as the page on the site by adding a section of code, the rich will be able to provide detailed reports chart. To provide a more detailed analysis of the project and provide a considerable intuitive chart shows, such as Unique Visitors (Visits, visits, including the return of), Pageviews (See the number of pages), P / V (page view ratio), visit loyalty , visited recently, the visit to the entrance pages, exit pages, each page of the entrance rate, the exit rate, as well as geographical location, maps, an intuitive view, the operating system type of language, the type of browser version, and so on are very detailed and comprehensive statistical analysis of projects, etc. and so on. At the same time, Google Analytics can also give an analysis of the specified URL is a Web site URL, or a main URL, in this URL can also be set up under the 10 sub-URL, that is, this URL also as a domain name or website analysis, given all the statistical data alone.

In addition, Google Analytics and AdWords is highly integrated, you can Adwords pay-per-click PPC in the projects and the flow of traffic analysis to assess the advertising value, given the comprehensive analysis of investment returns.

Registration and use:

Go to https: / / www.google.com/analytics/home/?hl=zh-CN for your Web site registered account.
Access to the tracking code. (Of which _gat._getTracker ( "UA-XXXXXXX-1");) for your Analytics User Account.
And then copy the code to your site's page template to which, if nothing special circumstances, you can get the code into the template file "footer" to the document, that is copied to the footer.php file go into HTML source code of the code before it.
When you added the code, the system will allow Google Analytics to check whether you put the correct code (Google Analytics management background related tips), when the Google Analytics code placed right after the prompt, then your Google Analytics began worked, of course, generally have to wait one day be able to see statistics.

WordPress plug-ins for Google Analytics

Google Analyticator
Option:

Your Google Analytics' UID: UA-XXXXXXX-1 for your Analytics User Account.
Additional tracking code (after tracker initialization):

var secondTracker = _gat._getTracker ( "UA-XXXXXXX-2");
secondTracker._initData ();
secondTracker._trackPageview (); / / If there are other things in the account Additional tracking code: to join the code above.

vmstat

vmstat 1 5, said T (1) seconds sampling a total of N (5) times the sampling
procs ----------- memory ---------- --- swap - ----- io ---- - system - ---- cpu - ---
r b swpd free buff cache si so bi bo in cs us sy id wa
4 0 173028 46648 8784 276432 10 22 432 597 1142 1117 16 44 40 0
1 0 173028 46648 8784 276432 0 0 0 0 1078 967 3 15 82 0
0 0 173028 46648 8784 276432 0 0 0 0 1063 917 2 15 83 0
1 0 173028 46648 8784 276432 0 0 0 0 1071 946 2 16 82 0
0 0 173028 46648 8784 276432 0 0 0 0 1067 976 3 14 83 0
procs: r (run queue) display is being implemented and the task of waiting for the number of CPU resources. When the value exceeds the number of CPU, there will be a CPU bottleneck.
cpu: idle time often is 0, then the occupier or the system time (cpu sy) is occupied by the time the user (cpu us) twice, the system is facing a lack of cpu resources.
swap: SWAP DISK emergence of virtual memory pages and pages Export Import phenomenon page guide (so) that does not mean that the bottleneck RAM, virtual memory systems often have memory page Export section, but the page to import (si) operation shows the server needs to cpu resources.
io / disk: often not equal to 0, and in the queue b is greater than 3, said io poor performance.

sar

sar for the collection, reports or information on the activities of the preservation system. sar application consists of three components: sar display data, sar1 and sar2 for the collection and preservation of data.
wget-P tar / ftp://194.199.20.114/linux/fedora/core/4/i386/os/Fedora/RPMS/sysstat-5.0.5-9.fc.i386.rpm
rpm-ivh tar/sysstat-5.0.5-9.fc.i386.rpm

Cases: sar-u 1 5, every second test a CPU, a total of five times the average after the count;
sar-r 3 3, every three seconds to see a physical and virtual memory usage, three times the average after the count.

The use of sar1 and sar2, the system can be configured to automatically crawl information and logs, for analysis. Configuration, for example: in / etc / crontab to add the following lines:

In fact, VNC configuration is very simple. As long as vncserver running just fine. Running after, it will generate in the home directory. Vnc directory.
vncpasswd modify the password to connect.

However, the default VNC start X-windows is twm, looks a bit ugly, then you can ~ / .vncr / xstartup document amended to read as follows

Vnc default is twm do window, this feature is too bad, and comment out, add a line: "gnome-session &", that I am using the gnome; with KDE "startkde &".
export LANG = zh_CN.GB18030 the line every time the conversation when the language changed to Chinese, my system is the default en_US.UTF-8, when there will be no access to Xwindow language problem.

And then restart the vncserver
# vncserver-kill: 1
# vncserver
Re-use vncviewer yourremotehost: id to see the familiar interface of the landing.

vi / etc / sysconfig / vncservers