Ethtool: Force or restart auto-negotiation of the NIC
Prior to force changes in speed network interface card (NIC), or auto negotiate the speed we use mii-tool. Even the two commands to check or change the network card on the status of the unit MII (Media Independent Interface). Most fast ethernet adapters use an MII to auto-negotiate link speed or duplex link and adjust. Due to hardware (network switch or Ethernet card) or software may be need to restart the auto-negotiation of an ethernet device. Reset the NIC autonegotiation to renegotiate the link speed is no need to reboot Linux, just type the following command as root, root @ betuntu: ~ # ethtool-r eth0 When you run the above change we see in the bitcora following; betuntu root @: ~ # tail ... Read the full article »
Filed under: Internetworking , NIC
How to set up a simple gateway with Debian Linux
When a company has a broadband connection to the Internet and aims to share the connection between different offices, often thought to be necessary to buy a dedicated firewall computer, which is a mistake. In this paper we show that with minimal investment and using Debian Linux to our network we can offer best services when purchasing a computer firewall. The acquisition of this hardware may be too expensive for many enterprises in Guatemala, in contrast to using a dedicated machine with Debian Linux installed and serving as a gateway for the LAN, it offers many benefits when compared against a team of dedicated firewall. To begin with, is much more flexible and also allows us to offer many extra services to our network. To run ... Read the full article »
Filed under: Articles , Debian , DHCP , Howto , Internet , Iptables , LAN , NIC
An introduction to Debian networking setup
Establish a network under Debian (sarge, etch, lenny) is very similar to other GNU / Linux, especially in areas such as DNS. However, if you're new to the distribution you may not know where things fit. In this brief introduction to networking trabaja.Solo will show you how there are a couple of things we should care: Set the hostname DNS Configure Configure Configure the gateway IP address (gateway) by default. Configuring hostname Set the hostname to a Debian is quite simple. We can ask them directly or set with the hostname command as a user can see the name of the current host: user @ mkdiablo: ~ $ / bin / hostname mkdiablo To set the hostname directly become root and run: mkdiablo: ~ # / bin / hostname nuevo_nombre_de_host When the system ... Read the full article »
Filed under: Articles , Debian , DHCP , DNS , Howto , Internetworking , NIC
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