Create VLAN on TP-Link WDR4300 wireless router with isolation

The TP-Link WDR4300 wireless router has an Atheros Chip. Due to this, it is not easy to set up VLANs (Virtual Local Area Networks) on it. Below explains how this can be done with the kind of problem that was overcome.

Problem: I had a guest computer on my home wireless network that kept sending . . . → Read More: Create VLAN on TP-Link WDR4300 wireless router with isolation

Broadcom 4313 wireless does not connect to network or internet in Linux but detects wireless networks

Wireless adapter on Lenovo Z580 does not connect to Internet in Linux although it detects all the wireless networks. Finally, got the settings right to enable the use of built-in Broadcom 4313 Network controller [0280]: Broadcom Corporation BCM4313 802.11bgn Wireless Network Adapter [14e4:4727] (rev 01)

Here are the steps. Open a terminal window. In the . . . → Read More: Broadcom 4313 wireless does not connect to network or internet in Linux but detects wireless networks

How to draw network diagrams in LibreOffice or OpenOffice

You can use Dia to draw network diagrams in linux or windows. However, if you just want to use LibreOffice Draw or Impress or even Open Office, you can use network images from Cisco.

You can them at http://www.cisco.com/web/about/ac50/ac47/2.html

You will also find Visio templates at http://www.cisco.com/en/US/products/hw/prod_cat_visios.html

You can see the diagrams created using the . . . → Read More: How to draw network diagrams in LibreOffice or OpenOffice

How to extend range of Wireless Network using DD-WRT and another router for free

Wireless LAN networks have a limited range. If you are a home user with a single internet connection, you can go wireless with one router. However, you may not get the wireless signal across your home. To make it work across a wider area, you need to extend your wireless network. You can extend the . . . → Read More: How to extend range of Wireless Network using DD-WRT and another router for free

Flashing dd-wrt on TP-Link WDR4300 router

The TP-Link WDR4300 wireless router comes with dual band and the default TP-Link firmware. This firmware is good for normal users but, if you install DD-WRT on the router, you can make it do a lot more.

Download latest dd-wrt firmware for the WDR4300 from http://www.dd-wrt.com/site/support/router-database Remove internet cable from the router Do a 30/30/30 . . . → Read More: Flashing dd-wrt on TP-Link WDR4300 router

List of all services connected to internet in Linux

To determine all services connecting to the internet, enter the command below in a terminal window: $ sudo lsof -n -P -i +c 15 <enter>

You can also find similar information using the command below: $ sudo netstat -anp | grep e tcp e udp <enter>

. . . → Read More: List of all services connected to internet in Linux

Multiple Wireless LANs WRT54G2 – Allow guests to use your WLAN

You have a wireless router at home. There are occasions when you have guests at your home, and they require to access the internet over your Wireless Network. Unfortunately, the default firmware on the Cisco / Linksys WRT54G2 wireless router does not allow you to have a separate WLAN access password for your guests.

In . . . → Read More: Multiple Wireless LANs WRT54G2 – Allow guests to use your WLAN

Remove the pain from firewall rules building – Firewall Builder

If you are new to firewalls and want an easy way to build the rules for your devices, you can use Firewall Builder. It can be installed on Linux, Windows and other platforms. You can download it from http://www.fwbuilder.org.

The key feature is an easy to use GUI-based firewall rules system. Firewall Builder can also . . . → Read More: Remove the pain from firewall rules building – Firewall Builder

Remove Network Manager Wireless LAN connections

Login as root and type following command to edit the network connections.

# wicd <enter>

You can then setup the wireless LAN after a reboot.

Change host name in Fedora Linux

To change the host name on Fedora Linux, do the following:

Open a terminal window Login as root Add the host name to /etc/hosts Add the host name to /etc/syconfig/network Reboot your computer

Add the host name to /etc/hosts

# vi /etc/hosts <enter> Add below line to the end of the file 192.168.1.101 . . . → Read More: Change host name in Fedora Linux

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