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Debian Linux: Configure Network Interfaces As A Bridge / Network Switch

My server has five Ethernet ports and one ADSL port. How do I setup IPv4 software bridge using Debian Linux operating systems so that the rest of five ports act as a network switch?
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Ubuntu Linux Add Static Route

I've two network interfaces. One connected to eth0 and another connected to eth1 as follows:

eth0 => private network with private IP in 10.x.x.x/8 range.
eth1 => ISP router with public IP via

How do I setup persistent static route so that traffic route via router only?
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Debian / Ubuntu Linux: Setup Wireless Access Point (WAP) with Hostapd

I've got a spare USB Wireless Adapters (WIFI adapter/dongle) and my ISP router does not support wireless option. How do I turn my home nas server into a wireless access point (WAP) that allows wireless devices to connect to a wired network using Wi-Fi under a Debian or Ubuntu Linux operating systems without purchasing additional WPA box? How do I setup an Access Point (AP) mode Wi-Fi hotspot on a Debian or Ubuntu Linux operating systems?
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Linux Static IP Address Configuration

How do I configure the Internet Protocol version 4 (IPv4) properties of a network connection with a static IP address for servers running Linux operating systems? How do I configure static IP address under Debian Linux or Redhat / RHEL / Fedora / Redhat Enterprise Linux server?
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Linux Display Ethernet Bridge Name and Information

How do I display a list of bridges under Linux? How do I show info about the Ethernet bridge configuration in the Linux kernel?
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Debian Linux Configure Wireless Networking With WPA2

I've Atheros AR5001 wifi a/b/g card detected and supported natively under Linux. How do I configure my wireless card with WPA2 networking using /etc/network/interfaces file?
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Ubuntu: SIOCADDRT: File exists Error and Solution

I'm typing the following command under Ubuntu Linux:

route add default gw eth0

But it is giving me out the following error:

SIOCADDRT: File exists

How do I fix this problem?
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KVM Guest: Shared Physical Network Device With Host (bridging configuration)

The NAT based connectivity is useful for easy deployments. However I want to use full bridging, where the guest is connected directly to the LAN. How do setup and share physical network with host and rest of the LAN under Linux?
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Linux MTU Change Size

We've gigabit networks, and large maximum transmission units (MTU) sizes (JumboFrames) can provide better network performance for our HPC environment. How do I change MTU size under Linux?
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Debian IPv6 Networking Configuration

How do I configure static IPv6 networking under Debian Linux?
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