Debian Admin

I only tried this for a Belkin G+MIMO but it should be ok for most router types.

Before you carry on:

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Cisco Routers and Switches with L3 routing functions are seen to have problems with High CPU usage when SNMP is enabled. This can range anything from 15% to 40%. According to Cisco, these are low priority processes and other priority processes requiring CPU cycles are given priority over these processes and this level of CPU utilisation can be is normal. However, it is always better to be safe than sorry and get the CPU utilisation caused by SNMP to bare minimum so as to ensure the Routers function smoothly.

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This tutorial will explain Howto setup DHCP Server and Dynamic DNS with BIND in Debian.

Preparing you system

First you need to install DHCP,BIND servers using the following command

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If you want to upgrade IOS on a 3750 switch stack follow this procedure

There are some new IOS commands to automate upgrading of a stack, but I use the familiar manual method.

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If you are using zoneedit.com or dyndns.org for your DNS service so that you can access your server using a URL, then you might have to update your DNS record at the service periodically whenever the IP address of your computer changes.Now here is simple solution for this ddclient.

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upgrading IOS on Cisco routers and switches is hightly recommendable because of the following reasons

Patch critical vulnerabilities: Just like any other network device or application, Cisco routers and switches are also prone to security holes. And because routers and switches are critical to network infrastructure, you should plug these security holes as soon as possible.

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