Make Cisco device and non-Cisco SFP “work” together

Cisco
Maybe you came across a problem where you have a Cisco switch worth a few thousand dollars but you just don't have a Cisco SFP which is also not cheap or it had malfunctioned and you are looking for an alternative. I have recently encountered that kind of situation (the first one) but there is a way:)       [wp_ad_camp_1] In IOS just type the command: service unsupported-transceiver This command will be displayed in the beginning of the switch configuration. After typing it you will get a scary message saying: Warning: When Cisco determines that a fault or defect can be traced to the use of third-party transceivers installed by a customer or reseller, then, at Cisco’s discretion, Cisco may withhold support under warranty or a Cisco support program.…
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Linux Live distribution USB flash drive install

Linux
You learn in depth about Linux and all the things you can do with that operating system, but you could get stuck on the most trivial things like installing it to your flash drive. There are many programs and ways to install it as a Live distribution, but I found this program to be the most efficient and is easy to use.       [wp_ad_camp_1] You all know that Live editions are a one time thing - you can't save your settings (documents, user profile...) but with the Persistence feature (if available for the selected distribution) you can. In the Persistence feature you can select the amount of space to be reserved for it. I usually take a quarter. If it's a 4gb drive, than 1gb for persistence space.…
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How to enable root SSH login on a ESX 4 host

Vmware
We are going to discuss how to enable root SSH login on the ESX 4.0 server. Root user is disabled by default so all we have to do is get to our ESX console and enable it.         [wp_ad_camp_1] As you know,  you log in on the ESX server with the user that you created  in the installation  process and switch to the root user is made by a little linux command "su" (switch user). Enabled root SSH login is a security issue, someone could get easier access to it and that someone may not have best intentions, but there are situations where you need root access, like testing, folder/file control..etc.  Step 1 Login as root user to your ESX console.  Step 2 Enter "cd /etc/ssh" to…
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