Virtualenvwrapper’s windows port (virtualenvwrapper-win) helps to manage your venvs on windows platform, yet it is not so straigtforward about using hooks like postactivate. That is what official documentation has to say about this: Hooks To run some commands after mkvirtualenv you can use hooks. First you need to define VIRTUALENVWRAPPER_HOOK_DIR variable. If it is set mkvirtualenv
It became quite a pain to get Web-based console working on ESXi hosts or vCenter servers with deprecation of NPAPI plugins in modern browsers. As for me, the most comfortable method to get a remote console access is to use standalone Virtual Machine Remote Console client (VMRC) which is available for free for major OSes. The sad
The DNS is defined in literally dozens of different RFCs. The terminology used by implementers and developers of DNS protocols, and by operators of DNS systems, has sometimes changed in the decades since the DNS was first defined. This document gives current definitions for many of the terms used in the DNS in a single document. I saw this RFC
We are, network engineers, have many *nix tools at our disposal: exaBGP, nmap, tcpdump, to name a few. And with UNetlab its very easy to run a linux system inside a topology (not to mention that you could use cloud pnet interface to bridge unetlab topology with the real world). By default UNetLab’s linux template opts
This time I will cover in details basic Layer 3 VPN (L3VPN or VPRN) configuration, and I decided to kill two birds with one stone by inviting Juniper vMX (read here on how to add vMX to Unetlab) to our cozy Alcatel-Lucent environment. In this post we will configure BGP/MPLS VPN [RFC 4364] including: PE-PE relationship configuration with
I advertised to you recently another great virtual lab environment – Unified Networking Lab – with tools like that one I practiced the cool technologies of Alcatel-Lucent Service Routing platform and prepared to many certification exams. And I encourage you to go the same way, not just read the books and force the dumps, but actually build a topology
In the first part of this BGP tutorial we prepared the ground by configuring eBGP/iBGP peering. We did a good job overall, yet plain BGP peering relationship is useless, the power of BGP in its ability for granular management of multiple routes from multiple sources. And the tools that help BGP to handle this complex task are BGP
Since QEMU is the main tool I use in our virtual lab, it is crucial to know what qemu in general is and what are all the qemu options for? And I am no expert here, actully I ran some qemu images myself without honest understanding why am I providing this particular set of options and
Having a traffic generator in a lab is a huge advantage, hands down. As to this moment Unified Networking Lab supports software-based traffic generator called Ostinato. But I had an opportunity to use another traffic generator – Spirent Test Center, virtual edition. Spirent’s images are not officially integrated/supported by UNL, so you will see how to
I had 1.99.1 beta running in Mavericks quite well, problems arose with upgrade to 10.10. Yosemite. I saw [crayon-563410ebcce3a627922708-i/] every time wireshark started and did not see any interfaces to start capture on. Thanks I was not alone with this one, go to the link provided to see the details, or do not give a sh*t and apply this one
Juniper offers its brilliant MX routers for virtual environments – namely vMX. And we cant name ourselves engineers if we wouldn’t try to run one in the Unetlab. Running vMX in the unetlab is a simple task, yet I see many complaints about vMX not working. With this being said I invite you to a journey called “running vMX
Of course you heard of qemu. Its a hypervisor used by UNetLab and GNS3 to integrate virtual routers like Alcatel-Lucent’s 7750 SR, Junipers vMX and Cisco’s XRv. And it is well-known that those virtual routers come in the form of qemu disk images with an odd [crayon-563410ebce426237947726-i/] extension. But how can we alter those disc images if we need,
Hey fellows! I know some of you prefer to track new posts in twitter feed. For those of you I created noshut_ru twitter account where you will find all the updates and some reposts from networking gurus. Follow!
A long time ago in a galaxy far, far away engineers hunted eBay for used routers to meet their demand for home labbing. Rack-rental services were kings and an ability to run cisco ios under dynamips felt like pure magic. Those dark days are gone… Thanks to massive eruption of virtualization technologies. In this topic I will
When we say Service Provider, we imply BGP and when we say BGP, we imply Service Provider. There is no way I would leave you without covering configuration steps for one of the most versatile, scalable and robust internet protocols also known as BGP. And here it is – BGP configuration guide for Alcatel-Lucent Service Routers. As