Apache running status

Apache running status-Linux Enterprise Application-Linux server application information. For details, refer to the following section. Use netstat to compare the number of connections with maxclient in http. conf.

Ps-ef | grep http: check how many httpd processes are working. Yes

View apache information through the mod_stats module, for example:
You can know who is reading something on your server and how many people are connected to the Web server. There are others ..
Mod_info and mod_status
These two modules provide very useful information and are very convenient.
Mod_status can tell you exactly what your server is "thinking. You can know who is browsing your website and how many sub-accounts are there.
Processes are running, and what these processes are doing.

If you use the default method to install Apache, it should have been installed
Mod_status: Add the following lines to the configuration file (httpd. conf) (in fact, you only need to comment out the lines)
# Server Status

SetHandler server-status
Order deny, allow
Deny from all
Allow from. your_domain.com

This SetHandler statement tells Apache that once a matching
The request (in this example/server-status) is not to find the corresponding
Instead, it is processed by the corresponding module or CGI.
The mod_status module defines a server-status and ExtendedStatus ).

In the preceding configuration, when accessing the/server-status resource, the current activity report of the server is provided.


After this change, restart Apache and enter http: // servername/server-status in the browser to view the Apache runtime information, and enter http: // servername/server-status? Auto will see the following information:


Total access: 124



Total kBytes: 444



CPULoad: 3.32432



Uptime: 37



ReqPerSec: 3.35135



BytesPerSec: 12288



BytesPerReq: 3666.58



BusyWorkers: 1



IdleWorkers: 7


The format is as follows:
W _________...................................... ................
........................................ ........................
........................................ ........................
........................................ ........................

W represents a subprocess that is responding, and _ represents the connection that idle subprocesses are waiting. Each vertex represents a potential that has not yet been generated
In the sub-process. Each potentially usable service is expressed in this section.

He also tells you how long the system has been running since it was last started. If you need more information, open
ExtendedStatus switch, which is off by default. After this switch is turned on, in addition to the above information, you can also get each
List of child processes and their work.
For each sub-process, you can obtain its PID, CPU usage, and running time. For servers,
You can get the total number of clicks, CPU utilization, clicks per minute, and the total number of bytes transmitted to the client after the server is started.


Mod_info
Mpd-info is an extension module of classification. In other words, it is not integrated into Apache, and you must manually add it.

Mod_info may not be very useful for customers, but it is very useful for system administrators. In particular, there are many server requirements
To be maintained. The following sections can be used for implementation.

SetHandler server-info
Order deny, allow
Deny from all
Allow from .your-domain.com

The inspiration displayed on this page is the list of things you compiled into Apache and other server-specific features.

If you enter: http://your.server/server-info/, you can see the server's built-in module list or the list of modules loaded through DSO.
This is very useful for installing and configuring specific servers. It is especially used to find problems with wrong configuration files.

Now, the basic introduction of these two modules is here. You still need to know the details by yourself. Because at the same time as the customer's convenience
The information displayed in these two modules must be restricted to the use of specific personnel. Therefore, Deny and Allow are also required.
Statement.