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Showing posts from July, 2012

hostname command man page

HOSTNAME(1)   Linux Programmer’s Manual   HOSTNAME(1)

NAME        hostname - show or set the system’s host name        domainname - show or set the system’s NIS/YP domain name        dnsdomainname - show the system’s DNS domain name        nisdomainname - show or set system’s NIS/YP domain name        ypdomainname - show or set the system’s NIS/YP domain name

Mysql server memory variables

join_buffer_size: (PER SESSION) Controls the amount of memory allocated to perform joins on tables that have no keys which can be used to perform a condition filter. Allocated for each table joined without necessary filter conditions.
key_buffer_size: (GLOBAL) (MyISAM-only) Controls the amount of memory allocated to the MyISAM index key cache.

SELINUX Basics

To administrate SELinux on a linux box you should have to know some basics of SELinux: Viewing and changing SELinux statesViewing and changing SELinux security contextViewing SELinux violation messagesViewing and changing the state of SELinux booleansUsing basic features of the SELinux gui toolhttp://www.youtube.com/watch?v=aeK5jOwtWoQ

Oracle http-web-access.log file is growing in the long run

http-web-access.log file is in the $ORACLE_HOME/oc4j/j2ee/OC4J_DBConsole_<host>_<sid>/log directory. This log file grows in the long run and can be managed from $ORACLE_HOME/oc4j/j2ee/OC4J_DBConsole_<host>_<sid>/config/http-web-site.xml file.

<?xml version = '1.0' standalone = 'yes'?>
<!DOCTYPE web-site PUBLIC "OracleAS XML Web-site" "http://xmlns.oracle.com/ias/dtds/web-site-9_04.dtd">