There are many howtos for compiling kernels, but most of them don’t work. Why? It’s not that they are wrong. The problem is that every linux distribution has its own idiosyncrasies. There is no howto that works for all cases.
This document will help you to compile linux kernel for Redhat based distributions:
Redhat
Fedora
Redhat Enterprise
CentOS
Kernel compile for RedHat based linux
Apache+PHP statically linked and MySQL compile howto
What does “statically linked” mean
PHP can be run in two different modes:
- CGI module
- Apache (SAPI) module
I won’t explain CGI module because it’s not part of this howto. Apache module is a library, usually shared object (.so file) which is used by apache to process php files. This howto explains how to build the module into apache. So there will be no .so file and Apache and PHP will all be one big executable. This makes the things work slightly faster. Is it worth the effort? I don’t know. If 99% of your sites will use php then there is no reason to be separate module.
MRTG – mysql queries per second
A useful thing is to monitor the load on your MySQL database server. To check mysql queries per second you’ll need a simple helper script:
Dump database to text file and then restore it
The mysqldump command dumps databases/tables to standart output. You can use pipe redirect to save it to file:
mysqldump [options] >dump.sql
When you dump a database there are some options of mysqladmin you need to understand: