Google BBR Algorithm

Google’s BBR algorithm for handling TCP traffic congestion could announce a new Era on the trasnport Control Protocol (TCP). Google announced integration with Google Cloud, a cloud hosting platform offered by Google to thousands of companies and which serves millions of websites on a daily basis. BBR stands for “Bottleneck Bandwidth and RTT (Round-Trip Time),” … Read more

Some DNS Resources Compiled

Working a lot around Response Policy Zone (RPZ) these days, it’s better to start collecting some valuable tools, whitepapers, research, best practises, etc DNS Servers Name Description BIND The most widely used DNS software on the Internet Bundy Integrated authoritative DNS and DHCP server (the continuation of the BIND 10) Dnsmasq A lightweight, easy to … Read more

Upgrade Cisco Blade Switch

Applying a major upgrade between 12.x and 15.x code, backup your config first before go ahead! Checking the actual version   SW01#sh ver | i IOS Cisco IOS Software, CBS30X0 Software (CBS30X0-LANBASEK9-M), Version 12.2(35)SE, RELEASE SOFTWARE (fc2)SW01#show boot BOOT path-list      : flash:cbs30x0-lanbase-mz.122-35.SE/cbs30x0-lanbase-mz.122-35.SE.bin Config file         : flash:/config.text Private Config file : flash:/private-config.text Enable Break        : no … Read more

Export/Import Putty settings

This method is using registry, so before proceed do a backup of it. Open command line and type the following command: regedit /e “%userprofile%\desktop\putty-registry.reg” HKEY_CURRENT_USER\Software\Simontatham Copy the file generated to the new Windows installation and run it, a prompt window will pop up and click “Yes”. This will merge with config you have for Putty. … Read more

Setup Infoblox IPAM Express on ESXi

You are running out of budget this moment but you really need an IPAM system to manage your IPs (IPv4 and v6) and leave away the old excel which you worked for a long time. For me using or not an IPAM system will depend of the environment size, it’s need to be reasonable and … Read more

Junos Genius 2.0 is out

Juniper redesign the interface of Junos Genius, and looks great.  There are other features included on this version: user profiles, fetch test exam questions, Sync Offline Data and much more I really recommend it to practise before jump to a live exam, and it’s free! Download the app now in the Apple AppStore or Google … Read more

Dell FTOS Emulator

If you are a Dell Customer or Network Engineer who work with Dell gear, this is for you. Dell provide a Dell Networking OS Emulator for tests purpose, and gain experience with FTOS testing a few scenarios, there are a few limitations but still a good tool anyway. The best thing you can run it … Read more

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