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ifconfig command

Linux: Show / Display Available Network Interfaces

How do I display all available network interfaces names under Linux operating systems using bash shell prompt?
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RedHat / Centos Disable IPv6 Networking

Our policy and network configuration does not requires IPv6 support in RHEL / CentOS / Fedora Linux. How do I prevent the kernel module from loading at boot time and disable IPv6 networking?
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FreeBSD: IPv6 Configuration Set Prefixlen Value

How do I set the prefixlen for an IPv6 address under FreeBSD operating systems?
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Solaris UNIX: Show All Network Interfaces

I‘ve a new Solaris / OpenSolaris unconfigured UNIX server. How do I find out list of network interfaces under Solaris UNIX?
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FreeBSD Set Network Polling To Boost Performance

I‘ve Intel PRO/1000 Gigabit Ethernet adapter installed in my server. How do I set network card (NIC) polling and disable interrupts under FreeBSD operating systems to boost network performance for 100M and 1000M network links?
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Set Txqueuelen Under Linux

How do I set txqueuelen of my network interface card (NIC) under any Linux distro?
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FreeBSD Find Out Network Card / Port Speed

Q. Under Linux I can use Ethtool and mii-tool, but they are not available under FreeBSD. How do I tell the port speed of the nic under FreeBSD operating system?
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OpenBSD Change / Set IP Address For Network Interface

Q. How do I configure or change existing IP address under OpenBSD operating system? How do I configure TCP / IP under OpenBSD?

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Linux / FreeBSD: Multiple IP Addresses on One Interface

Q. Can one Linux / BSD system respond to multiple IP address on a single Ethernet interface? I need to run multiple web sites and mod_ssl with a single server. How do I configure my box for multiple IP address?
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OpenBSD Restart Networking Service

Q. How do I restart networking service under OpenBSD operating system from a shell prompt? How do I start / stop interface?
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