Networking

I know how to send WOL command using Linux or FreeBSD wake command. But, how do I send Wake on LAN (WOL) frames to hosts on a local Ethernet network using Apple OS X operating systems to wake up my servers or nas devices?

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How do I install wake on lan client under Ubuntu Linux desktop to wakeup Unix or Linux based servers?

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I am under DoS attack. My cloud based server hosting company asked me to enable TCP SYN cookie protection to save my domain from SYN Attack. How do I turn on TCP Syn cookie protection under Ubuntu or CentOS Linux based server?

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I run a BT client and few other server program on Linux. Sometime these programs get overloaded with too many connections and crashes. If I restart my apps, I see lots of old IPs in a TIME_WAIT state. How do I force and and close everything in a TIME_WAIT state under Linux operating systems?

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I have Red Hat Enterprise Linux 6.x server. How do I find out and groups network bandwidth usage by process under Linux operating systems? How do I find out what programs are using network bandwidth under Linux operating systems?

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A wireless NIC is showing as wlan0 but I need to be appear as eth1. How can I rename wlan0 devices through udev as eth1? How do I change or rename eth0 as wan0 under Linux operating systems?

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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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