 Logging is one of the most important tools when troubleshooting network problems. However, its usefulness is greatly diminished if you log so much information that you’re unable to find what’s important. One key to avoiding information overload is to log errors, not warnings. If you need more information to resolve a problem, you can go back [...] Linux standardization is helpful for ensuring that enterprise software is well-supported and for simplifying system management. Red Hat’s partnership with Cisco should help extend this process for data centers. In Fall 2011, Red Hat partnered with Cisco to offer Red Hat Enterprise Linux RHEL for FlexPod, Cisco and NetApp’s virtualization deployment infrastructure. You can find out more [...] Like many businesses, you may use a combination of vendors, such as HP and Cisco. Since early 2010 when HP stopped partnering with Cisco, it appeared that you’d be left on your own to integrate equipment from these two vendors. Fortunately, Cisco and HP are now collaborating together in a limited way to make it easier [...] Open Network Tool If you need to try out IOS images in a test environment or experiment with different network configurations, you may want to consider downloading GNS3. This free program (which runs on Windows, Linux, and Mac OS X) emulates a number of Cisco routers and switches, as well as routers by Juniper. You [...] Monitor network traffic with these bandwidth monitoring tools With the amount of resource-hungry media available, you may find that some machines are using an inordinate amount of bandwidth on the network. Whether for planning purposes to ensure that the network is able to meet the growing needs of an organization, or to be alerted for [...] Cautions and workarounds regarding powering newer IP phones with older switches If you want to use Power over Internet (PoE) to run your IP phones, make sure they’re compatible with your switches. Before the 802.3af standard for PoE came out, Cisco had its own “pre-standard” version of PoE, which it originally called [...] Simplify managing your IT resources with asset management software In the old days, administrators used to keep track of all the computers at the office by walking around with a clipboard and jotting down all relevant information. This approach is rather ironic considering that the items being tracked are supposed to reduce the need [...] Be aware of NAT/PAT syntax changes when upgrading to ASA 8.3 If you’re thinking of upgrading to ASA 8.3, be aware that you may need to considerably revise your configuration syntax. The syntax for NAT and PAT are considerably changed, now that the following commands are no longer available: alias Typically, the old commands are [...] A simple free solution for small business web content filtering For a small office and budget, you may want simple, inexpensive web content filtering and phishing protection. While Cisco ASA or PIX can handle these needs, a lightweight, inexpensive and simple option is OpenDNS. You just use their site for external name [...] Make sure your wireless access points meet regulations Cisco makes wireless access points for many countries. So if you’re purchasing equipment for offices in different parts of the world, you should make sure that it meets regulations in the country where you’ll be using it. It’s particularly important to check the part number if you’re [...] |
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