How to Disable the SELinux on RHEL 6


In Redhat Enterprise Linux 6 (RHEL 6) minimal server installation, SELinux is set to enable. To disable SELinux, without having to reboot, you can use the setenforce command as below: [root@rhel6 ~]# setenforce 0 To disabled the SELinux on your next reboot, please change “SELINUX=enforcing” to “SELINUX=disabled”. # This file controls the state of SELinux […]

How to Secure MySQL Database Server


A Default MySQL installation is completely vulnerable to attacks. MySQL installation should be made as secure as possible. This is to protect the data collections and the information maintained by the MySQL server from unauthorized or anonymous access. In This post, i will share with you on how to secure your database server with the […]

How to Delete Anonymous Users From MySQL on CentOS 6.2


MySQL installation has a default “root” user with a blank password and an “anonymous” user, also with a blank password. This is very unsecured and not recommended. In order to protect your data, the “root” user should be set with a password and the anonymous user should be delete. In this post, i will show […]

How to Check and Verify The Site That You Want You Visit Using SiteAdvisor

There is an easy way to verify the website that you always visit or want to visit is safe or not using SiteAdvisor.The SiteAdvisor technology is free, easy to install and even easier to use. And it doesn’t collect any personally identifiable information. This method require installation of the SiteAdvisor software. With SiteAdvisor software installed, […]

How to Drop or Block Incoming Access From Specific IP Address Using Iptables

In this post, i will show you the simple way to block incoming ip address using iptables firewall on CentOS 5.5. This setting will be removed once you restarted the iptables or rebooted the server. OPTIONS = long or short options are allowed. –append -A Append to chain –delete -D Delete matching rule from chain […]