OptusNET Wireless High Speed Internet

We are the leader in delivering innovative communications, information and entertainment. We offer voice, data and video products and services over intelligent wireless, broadband and global IP networks that meet customers growing demand for speed, mobility, security and control. As a committed corporate citizen, we use our advanced communications services to address important issues confronting our society.

MySQL Database User: Which Privileges are needed?

For normal WordPress operations, such as posting blog posts, uploading media files, posting comments, creating new WordPress users and installing WordPress plugins, the MySQL database user only needs data read and data write privileges to the MySQL database; SELECT,...

Securing WordPress

Security in WordPress is taken very seriously, but as with any other system there are potential security issues that may arise if some basic security precautions aren’t taken. This article will go through some common forms of vulnerabilities, and the things you...

EdgeMAX dhcp-server configuration

After setup DHCP servers in the network you may discover problem with a slow response from DHCP server. This is very common problem when the network use a segmentation. Usually each of VLAN required own DHCP server. To correct this problem you should...

UniFi – Install controller software on CentOS

How to install UniFi v3.2.7 on CentOS, a very stable Linux platform used on production servers. To download v3.2.7 (or latest) UniFi software controller version, please visit UBNT downloads section and select “UniFi” for platform. Prepare CentOS # yum...

Unix/Linux command reference

File Commands ls – directory listing ls -al – formatted listing with hidden files cd dir – change directory to dir cd – change to home pwd – show current directory mkdir dir – create a directory dir rm file – delete file rm -r dir – delete directory dir rm -f...

EdgeMAX – L2TP Server

How to configure the EdgeRouter to act as an L2TP (Layer-2 Tunnel Protocol) server for remote access. Note: These instructions assume that eth0 is your WAN (Internet) connection. Early in the configuration, a specific command should be used in case you receive a...

20 Command Line Tools to Monitor Linux Performance

It’s really very tough job for every System or Network administrator to monitor and debug Linux System Performance problems every day. After being a Linux Administrator for 5 years in IT industry, I came to know that how hard is to monitor and keep systems up and...

Fix IE10 and SBS 2008 RWW error

You just upgraded your workstation to Internet Explorer 10. But when you try to remote into your SBS 2008 server, you get a “VBScript: Remote Desktop Connection” error message, like this:   The detail error message reads: The wizard cannot configure Remote...

Installing and using VirtualBox on CentOS

1. RPMforge for CentOS 6 The default RPMforge repository does not replace any CentOS base packages. In the past it used to, but those packages are now in a separate repository (rpmforge-extras) which is disabled by default. You can find a complete listing of the...

WordPress and problems with RewriteRules and w00t

Have you been recently seeing these URLs in error.log [error] [client 69.162.74.102] client sent HTTP/1.1 request without hostname (see RFC2616 section 14.23): /w00tw00t.at.ISC.SANS.DFind:) The F flag sends a 403 Forbidden response when the rule matches: RewriteRule...

10 Linux DIG Command Examples for DNS Lookup

Dig stands for domain information groper. Using dig command you can query DNS name servers for your DNS lookup related tasks. This article explains 10 examples on how to use dig command. 1. Simple dig Command Usage (Understand dig Output) When you pass a domain name...

Install GD Library For PHP5 On CentOS

An easy task, using yum. First step, see if it’s already installed. [root@optusnet]# rpm -qa | grep php php-common-5.1.6-27.el5_5.3 php-cli-5.1.6-27.el5_5.3 php-5.1.6-27.el5_5.3 php-pdo-5.1.6-27.el5_5.3 php-mysql-5.1.6-27.el5_5.3 If the GD Library isn’t present in...

WordPress permalink on CentOS 5 tutorial

The installation of WordPress is simple and straightforward. Really. So I’m not going to detail the installation process, which is well documented here. However, the permalink feature does not work out of the box on a standard CentOs 5 distribution. Some changes have...