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How do I enable Apache server logging? To solve this problem, the editor summarizes this article about Apache server today, hoping to help more students who want to use Apache server to record logs to find a more simple and easy way.

The Apache server log provides details to help detect common problems with the server. To log access to a Web site, mod_log_configmodule must be enabled.

There are three directives in the apache configuration file, namely-

TransferLog: create a log file.

LogFormat: specifies a custom format.

CustomLog: create and format log files.

The TransferLog directive is available in the apache configuration file, which rotates the virtual host log file based on the setting parameters.

VirtualHost www.example.com >

ServerAdmin webmaster@yiibai.com

DocumentRoot / usr/www/example/httpd/htdocs/

ServerName www.example.com

ServerAlias example.com www.example

ErrorLog / usr/www/example/httpd/logs/error_log

TransferLog / usr/www/example/httpd/logs/accesslog

CustomLog / usr/www/example/httpd/logs/accesslog combined

Two types of Apache log formats

General log format

Combined log format

You can enable them by editing apache configuration files, that is, apache2.conf (Debian/ubuntu) or httpd.conf (rpm-based system) files.

General log format

LogFormat "h% l% u% t\"% r\ "% > s% b" common

CustomLog logs/access_log.log common

An example of general log content generated by Apache is as follows

[Wed Oct 11 14:32:52 2000] [error] [client 127.0.0.1] client denied by server configuration: / export/home/live/ap/htdocs/test

Combined log format

LogFormat "% h% l% u% t\"% r\ "% > s% b\"% {Referer} I\ "\"% {User-agent} I\ "" combined

CustomLog log/access_log.log combined

In the above format

H is a remote host

L is the identity of the user determined by identd

U is the user name determined by HTTP authentication

T is the time that the server finished processing the request.

% r is the request line ("GET/HTTP/1.0") from the client.

% > s is the status code sent from the server to the client (500404, etc.)

% b is the size of the client response (in bytes) Referer is the page linked to this URL.

The user agent is the browser identity string.

Combination logs generated by Apache:

199.180.11.91-[06/Mar/2019:04:22:58 + 0100] "GET / robots.txt HTTP/1.1" 404 1228 "-" Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 2.0.50727) "

Custom logs create separate log files for each virtual host on the server. It needs to be specified in the virtual hosts section of the configuration file.

You can see the virtual host configuration mentioned below, and the generated logs will be customized for that virtual host and will be combined.

After reading the above, have you mastered the method of enabling Apache server to log? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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