flow duplicator

Nowadays I able to play around with flow data. Flow provide detail information on network traffic, for various purpose such as network monitoring, bandwidth monitor, traffic accounting archive and for security purpose. We have configured a layer 2/3 switch to send sflow data to my monitoring server. Some visualization were done by nfsen, but, its […]

mod_fcgid: HTTP request length xxxxx (so far) exceeds MaxRequestLen (131072)

This error message appears today, and it seems related to fcgi. As defined here, http://httpd.apache.org/mod_fcgid/mod/mod_fcgid.html#fcgidmaxrequestlen, the default value for MaxRequestLen is 131072, which is quite low for most implementation. I would prefer to use a higher value for this. For cpanel users, the configurations lies in this file. /usr/local/apache/conf/php.conf You need to add an additional […]

Caching, practical caching.

As I go along managing a few sites, managing a few servers before, most of my time online were spent studying on socializing, information security, server administration (security, optimization), and others. ‘Others’ might contribute to a bigger portion, but just to emphasize that one part of server administration is optimization, to make a software work […]

Fine tuning apache and mysql for performance and security

I’ve gone through a process of migration of a server, with help with provided migration scripts, and some hard-coded scripts to help synchronizing latest data, and permission fixing. All done well, and working fine now. However, all installation of services were default, and did not optimized for our needs. There are few aspect of tuning […]