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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 Networking: Persistent naming rules based on MAC for eth0 and wlan0

PROBLEM You've got a set of devices but their names, such as NIC / Network card names keep changing on each reboot or reconnect.  This is a continuation of Linux Networking: device eth0 does not seem to be present, delaying initialization.  where we resolved a similar issue due to naming but here we'll make it [...]

Configuring Linux Bonding: bond0 using eth0 eth1 and wlan0

This is a simple howto tutorial for creating and bonding three interfaces, a wireless one (wlan0), one RealTek based GIGe cabled NIC (eth0) and another alternate Intel based GIGe NIC (eth1).  This is partially a conceptual howto since a home HTPC / Backup center probably doesn't need three separate NIC's for redundancy.  However, with recent [...]

LINUX PXE: Installing and Network Booting Windows 7, Linux, Solaris using PXE

In this post we'll configure network booting through PXE.  PXE stands for Preboot eXecution Environment and has been available for Network Devices (or NIC's) for some time.  Such a network boot setup has many uses in particular in OS setup and deployment.  In this post I'll introduce the steps to quickly set one up.  The [...]

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 [...]

Linux / Windows: Changing MTU value of a Network Interface Card (NIC)

PROBLEM Occassionally, the default MTU (Maximum Transmission Value) value of a NIC card can cause you issues including being unable to view/see many internet sites or cause you issues when setting up your network, to the point where you will see communication popup errors and slowdowns.

The Linux Firewall configuration.

Most linux distros come shipped with basic firewall software. Other then ipchains or ipfwadm probably the most common command line firewall just might be iptables. If you run a small home network and need a bit more security on your box then what comes already available or a router already ships with, iptables is something [...]

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