Linux networking tutorials

Linux: How To Find the Default Gateway

Contributed by shamanstears on January 3, 2008 under Linux networking

Whether you’re troubleshooting network problems or trying to set up a VPN, knowing what address your computer has configured as the default gateway is always useful. Running a simple command from the terminal can give you this.

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RedHat Linux IP Forwarding

Contributed by abanks on February 2, 2004 under Linux networking

To enable IP (IPv4) Forwarding in RedHat linux.

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Disable ICMP echo (ping) responses in Linux

Contributed by qmchenry on September 5, 2003 under Linux networking

Many malicious attacks begin with a ping scan. Disabling ICMP echo requests prevents your system’s discovery with a ping.

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Determine Linux ethernet interface speed and duplex

Contributed by qmchenry on September 3, 2003 under Linux networking

Determine the autonegotiated ethernet connection speed and duplex using the mii-tool command

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Force the speed and duplex of a Linux ethernet interface

Contributed by qmchenry on under Linux networking

Using mii-tool, the speed and duplex of an ethernet interface can be set manually.

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