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Find / Detect IP conflicts

Here's a nifty way of figuring out if you have IP conflicts on a network ( yum search arp-scan ) : [root@mbpc-pc ~]# arp-scan -I bond0 -l Interface: bond0, datalink type: EN10MB (Ethernet) Starting arp-scan 1.9 with 512 hosts (http://www.nta-monitor.com/tools/arp-scan/)     f8:11:11:bc:47:8a       TP-LINK TECHNOLOGIES CO., LTD.     54:e6:fc:fb:ad:06 [...]

Windows: Stop Error 0x000000aa when trying to change a printer port.

When trying to change the port server name (I have a USB printer hooked up to a router) for the network attached printer, you get this message, Windows Port Error: 0x000000aa when trying to change printer properties in Windows 7.  What to do?

Windows / Linux: The local device name is already in use. This connection has not been restored and IP checksum offload

While setting up my gigabit ethernet network, during simulataneous Windows 7 file transfers to the HTPC+B setup, I've received a number of disconnects, virtually every time while transferring my files.  At the point, I not only lost connectivity with the HTPC+B but also my web access most of the time.  Here are the culprits and [...]

Linux / Windows Networking: Configuring and securing a router for Wireless and Wired Networks.

Here I would like to take you through the steps to configuring and securing a router (In this case we will use the WRT54G as an example) for your home or small office setup.  Securing a router can be very important especially when the wireless function is enabled.  Likely the most important reason is to [...]

WEB: Webhosting / ISP (Hosting, VoIP, DSL, Cable) Survival Guide

In the not so distant past, there has been an explosion of ISP's on the web which caused the only thing all of them could: dirt cheap hosting.  In fact, the web is virtually flooded with ISP's offering everything imaginable under the sun and space has literally become a door prize.   But what really separates [...]

Device eth0 does not seem to be present, delaying initialization: Linux Networking

PROBLEM You receive random errors failing to initialize your network card at boot time or during manual restart that look like the one below: $ifup eth0 via-rhine device eth0 does not seem to be present, delaying initialization. $ Or just a form of the # service network restart . . device does not seem to [...]

Dynamic IP’s: How to find external IP of your Router / Linux machine and ‘ssh’ to it.

Working remotely from various places, I needed to have access to my Linux machine at home. Unfortunately for me, my DSL IP was dynamic and at the time my ISP would change this IP several times a day. That was good for maybe only a few hours and then it would change to something completely [...]

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