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Purge binary logs in MySQL
Please do not just delete them in the OS. You need to let mysqld do that for you. Here is how mysqld manages it: The file mysql-bin.[index] keeps a list of all binary logs mysqld has generated and auto-rotated. The mechanisms for cleaning out the binlogs in conjunction with mysql-bin.[index] are: PURGE BINARY LOGS TO […]
Receive Caller ID and dial USSD via AT commands
Sample code : #include “SIM900.h” #include //#include “inetGSM.h” //#include “sms.h” //#include “call.h” //To change pins for Software Serial, use the two lines in GSM.cpp. //GSM Shield for Arduino //www.open-electronics.org //this code is based on the example of Arduino Labs. //Simple sketch to communicate with SIM900 through AT commands. //InetGSM inet; //CallGSM call; //SMSGSM sms; int […]
How to install, setup and configure an OpenVPN Service on CentOS 5
In this tutorial, we will learn how to install, setup and configure an OpenVPN Service on CentOS 5 as well as configuring the firewall to allow vpn traffic. Clients configuration will be done in the linked article, available at the bottom of this tutorial. Topology used in this scenario: 1 Ethernet card (eth0) connected to […]