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$Id: INSTALL,v 1.1 2001/11/28 05:26:54 helios Exp $
Requirements
============
0) I run a Red Hat 6.2 system, but these instructions should easily
adapt to any modern distro.
1) Apache 1.2.x or higher installed. (I run 1.3.22 and it works fine).
You should have already successfully compiled Apache and know what
you're doing there. In fact, you should already have any other
modules and add-ons like mod_ssl or PHP configured and installed
before you start this process.
2) The MySQL development headers. (I run MySQL-devel-3.23.44-1.i386.rpm).
3) MySQL configured, installed and running on either localhost or an
accessible networked machine. You should already have a basic
understanding of MySQL and how it functions.
4) Again, basic administrative skills with Apache and MySQL. I try to
make things as easy as possible in this README, but its purpose is
not to be an administrative tutorial.
Installation
============
0) Perform all the following steps as root so that you have install
privs, etc.
1) Unpack the archive into a working directory.
# tar zxf mod_log_mysql.tar.gz -C /usr/local/src
# cd /usr/local/src/mod_log_mysql
2) Edit Makefile and make any adjustments for your system: make sure
that APACHEDIR points to the location of your Apache source code,
and that CFLAGS points to the location of your Apache installation
directory (where your httpd binary lives).
3) # make all
(You should receive NO warnings or errors of any kind.
If you see messages like this: "mod_log_mysql.c:69: httpd.h: No such
file or directory" then you do not have your CFLAGS correctly
pointing to the right include directory.)
4) # make install
5) Change to your Apache source dir.
# cd /usr/local/src/apache-1.3.22/src
6) Re-make your httpd binary as follows.
6a) Edit Configuration.apaci as follows...
* Append the following string to the EXTRA_LIBS= line. (/usr/lib/mysql is where your libmysqlclient.a file lives):
-L/usr/lib/mysql -lmysqlclient -lm
* Add this line at the end of the file:
Module mysql_log_module mod_log_mysql.o
6b) # cp Configuration.apaci Configuration
6c) # ./Configure
6d) # make
6e) # strip httpd
7) Test your new apache binary:
# ./httpd -l
You should see something like:
Compiled-in modules:
http_core.c
mod_log_mysql.c <-- That's the line you're looking for.
mod_env.c
mod_log_config.c
mod_mime.c
mod_negotiation.c
...etc...
8) Install your httpd binary. Copy it over your old httpd binary,
wherever it lives. You can and should rename your old httpd first so
that you can easily revert to that working version in case of bugs or
whatever.
# /etc/rc.d/init.d/httpd stop
# cp -f ./httpd /usr/local/Apache/bin/
9) Configure your apache daemon to log to your database. Here's a very
basic set of config lines to start you off. Full docs on them are
included after this section.
EXAMPLE: Connect to the MySQL database called "apache" running
on "dbmachine.foo.com". The module uses username "loguser" and
password "l0gger" to authenticate to the database; this user must,
of course, exist in the MySQL user table and have the proper
permissions -- more on that in step 11. The log entries will be
INSERTed into the table called "access_log".
LogMySQLInfo dbmachine.foo.com loguser l0gger
LogMySQLDB apache
<VirtualHost 1.2.3.4>
[snip]
TransferLogMySQLTable access_log
TransferLogMySQLFormat huSUsbTvRA
[snip]
</VirtualHost>
10) Create a database and table to hold the new log data. I log the
same data as the regular "combined log" plus a little extra information
that can be useful.
The order that the fields appear in the table is irrelevant
because you can SELECT them in any order you choose. To create
this table I first created a new database called "apache":
# mysql -uadmin -pmypassword
mysql> create database apache;
Then I created the table called "access_log". You should use the
enclosed SQL file to do this for you.
mysql> source access_log.sql
11) Create a specific mysql userid that httpd will use to authenticate
and enter data. This userid need not be an actual Unix user. It
is a userid specific to mysql with specific privileges. To create a
user called "loguser" with the password "l0gger" with only the
capability of INSERT to "access_log":
mysql> grant insert on apache.access_log to loguser@my.apachemachine.com identified by 'l0gger';
12) Enable full logging of your MySQL daemon (at least temporarily
for debugging purposes) if you don't do this already:
Edit /etc/my.cnf and add the following line to your [mysqld] section:
log=/var/log/mysql-messages
Then restart MySQL.
13) Restart apache.
# /etc/rc.d/init.d/httpd start
13) Load your web site in a browser to trigger some hits, then confirm that
the entries are being successfully logged:
# mysql -hmysql.host.com -umysqladmin -p -e "select * from access_log" apache;
Enter password:
+---------------------------------------------------+-------------+-------------+------------------+------------------+------------+--------+------------+------------------------------------+
| remote_host | remote_user | request_uri | request_duration | virtual_host | time_stamp | status | bytes_sent | referer |
+---------------------------------------------------+-------------+-------------+------------------+------------------+------------+--------+------------+------------------------------------+
[snipped lines]
.
.
.
+---------------------------------------------------+-------------+-------------+------------------+------------------+------------+--------+------------+------------------------------------+
14) You have basic functionality. Don't disable your regular Apache logs until
you feel comfortable that the database is behaving as you'd like and that
things are going well.
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