Author Archives: Humair

Customize the Mac Terminal Shell Prompt in OS X Yosemite

Posted on November 3, 2014 by Humair

The Mac prompt is defined by the ‘PS1’ environment variable which can be defined in the ‘.bash_profile’ hidden file. To customize your Mac Terminal Shell Prompt in OS X Yosemite, follow the below steps.

Posted in Mac OS X Yosemite, Operating Systems, Technology | Tagged .bash_profile, Apple Mac OS X Yosemite, Apple MacBook Pro, Apple OS X Yosemite, BASH, BASH Shell, change Mac prompt, Change Mac shell prompt, change shell prompt, change Yosemite prompt, change Yosemite shell prompt, custom Mac shell, custom Mac shell prompt, custom terminal prompt, Customize Mac terminal shell prompt in OS X Yosemite, customize the Mac terminal shell prompt in OS X Yosemite, export PS1, MAC, Mac OS, Mac OS 10.10, Mac OS X, Mac OS X 10.10, Mac OS X Yosemite, MacBook Pro, OS X, OS X Yosemite, PS1, shell prompt, terminal prompt, terminal window, vi, vi editor, Yosemite | Leave a comment

Multitenancy on Dell Networking Switches via VRF-lite

Posted on October 29, 2014 by Humair

Check out the Dell Networking: Multitenancy with VRF-lite white paper. I describe in detail how multitenency can be achieved on supported Dell Networking switches via Virtual Routing and Forwarding (VRF). VRF-lite supports multitenancy by allowing multiple different routing tables within … Continue reading →

Posted in Dell, Dell Force10, Labs, Network Architecture, Networking, Protocols, Technology, Virtualization and Cloud Computing, VMware, VMware | Tagged default VRF, Dell, Dell Networking, Dell Networking S6000, Dell Networking: Multitenancy with VRF-lite, Dell Networking: Multitenancy with VRF-lite white paper, isolated network, isolated networks, leak, leak route, leaking, leaking route, multitenancy, Multitenancy with VRF-lite, multitenant network, Network Virtualization, Network Virtualization Overlay, Network Virtualization Overlays, non-default VRF, NSX, NSX network virtualization, NVO, NVOs, overlapping IP addresses, route, route leak, route leaking, routing table, routing tables, S6000, tenant, virtual router, virtual routers, Virtual Routing, Virtual Routing and Forwarding, vlans, vmware, VMware NSX, VMware NSX network virtualization, VR, VRF, VRF instance, VRF-lite, VRs, VXLAN, VXLAN Network, white paper | Leave a comment

Creating Logical Networks and Services with VMware NSX on Dell Infrastructure

Posted on October 16, 2014 by Humair

If you haven’t already, please checkout the Dell-VMware NSX Reference Architecture (RA) whitepaper. In the reference architecture I explain in detail the foundational NSX-vSphere components and also how Dell can provide a complete end-to-end infrastructure (servers, networking, storage) to support … Continue reading →

Posted in Dell, Dell Force10, Labs, Network Architecture, Networking, Virtualization and Cloud Computing, VMware, VMware | Tagged Blade, Blade Server, blade switch, CLI, decouple network, decoupled, Dell, Dell EqualLogic, Dell EqualLogic Array, Dell EqualLogic PS 6210XS, Dell EqualLogic PS6210XS, Dell EqualLogic storage, Dell EqualLogic Storage Array, Dell MXL, Dell MXL Blade Switch, Dell NSX Reference Architecture, Dell PowerEdge, Dell PowerEdge Blade Server, Dell PowerEdge Rack Server, Dell PowerEdge Server, Dell S4810, Dell S6000, Dell Server, Dell-VMware NSX Reference Architecture, Dell-VMware NSX solution, Distributed Logical Router, Distributed Logical Router Control VM, DLR, DLR Control VM, EqualLogic, EqualLogic array, EqualLogic PS 6210XS, EqualLogic PS6210XS, EqualLogic storage, EqualLogic Storage Array, Hardware NSX L2 Bridge, Hardware VTEP, Logical Network, logical network services, Logical Networks, logical router CLI, logical switch, logical switch CLI, logical switches, Logical-Physical Bridge, MXL, MXL blade, network services, NSX, NSX bridge, NSX CLI, NSX design/deployment, NSX Distributed Logical Router, NSX Edge, NSX Edge Appliance, NSX Edge Appliances, NSX Hardware L2 Bridge, NSX L2 Bridge, NSX Manager, NSX Manager virtual appliance, NSX Perimeter Edge, NSX Perimeter Edge CLI, NSX Perimeter Edge Router CLI, NSX Router CLI, NSX Services Gateway, NSX vCenter plugin, NSX-vSphere, NSX-vSphere design/deployment, NSX-vSphere plugin, NSX-vSphere vCenter plugin, NVI VLAN Bridge, Perimeter Edge, Physical-Logical Bridge, PowerEdge Blade Server, PowerEdge server, Rack Server, router CLI, S4810, S6000, SDN, SDN solution, SDN solution with NSX, software defined networking, Storage Array, switch CLI, vCenter, Virtual Extensible LAN, virtual machine, vlan, VLAN VXLAN bridge, VM, vmware, VMware NSX, VMware NSX design/deployment, VMware NSX Manager, VMware NSX Manager virtual appliance, VMware NSX Reference Architecture, VMware NSX-vSphere, VMware NSX-vSphere design/deployment, VMware vCenter, VMware vSphere, VNI-VLAN Bridge, vSphere, vSphere Web Client, VTEP, VXLAN, VXLAN encapsulation, VXLAN header, VXLAN-VLAN Bridge | 1 Comment

BASH Shell Scripting: Passing Arguments to a Python Script

Posted on September 1, 2014 by Humair

Larry Wall: “Shell programming is a 1950s juke box …” In this short blog I write a small Python utility script to create directories and demonstrate how to utilize it and pass it arguments via BASH shell script. The functionality … Continue reading →

Posted in BASH Shell Scripting, Mac OS X Mavericks, Operating Systems, Programming Languages, Python, Technology | Tagged BASH, BASH pass argument, BASH pass argument to command, BASH pass argument to python script, BASH pass argument to script, BASH Shell, Bash Shell Scripting, linux, MAC, Mac OS X, Mac OS X Mavericks, Mavericks, mkdir, OS X Mavericks, Python, Python 3, Python pass argument, Python pass arguments, python3, scripting, shell, shell script, shell scripting, Unix | 1 Comment

Network Virtualization with Dell and VMware NSX [Video]

Posted on August 28, 2014 by Humair

Check out my latest Dell Networking video on Network Virtualization with Dell and VMware NSX. You can view it on the Dell VMware wiki site, the Dell YouTube channel, or see the video embedded below via direct link.

Posted in Dell, Dell EqualLogic, Dell Force10, iSCSI, Labs, Network Architecture, Network Security, Networking, Protocols, Storage, Technology, Virtualization and Cloud Computing, VMware, VMware | Tagged DCB, DCB capable storage, Dell, Dell EqualLogic, Dell EqualLogic DCB capable storage, Dell EqualLogic iSCSI storage, Dell EqualLogic PS 6110XS, Dell EqualLogic PS6110XS, Dell EqualLogic storage, Dell Force10, Dell MXL, Dell PowerEdge M1000e, Dell PowerEdge M620, Dell PowerEdge R620, Dell PowerEdge Servers, Dell S4810, Dell S6000, Dell VMware NSX, distributed firewall, distributed routing, distributed switching, DLR, EqualLogic, EqualLogic DCB capable storage, EqualLogic iSCSI storage, EqualLogic PS6110XS, ESXi, ESXi 5.5, ESXi hypervisor, firewall, Force10, Force10 Networks, hypervisor, iSCSI, iSCSI storage, L2 Bridge, L2 Gateway, Logical Network, Logical Networks, MXL, MXL Blade Switch, Network Virtualization, Network Virtualization with Dell Infrastructure and VMware NSX Reference Architecture, NSX, NSX Controller Cluster, NSX Distributed Logical Router, NSX DLR, NSX L2 Gateway, NSX Manager, NSX Perimeter Edge, NSX Services Edge, OSPF, S4810, S6000, SDN, software defined networking, vCenter, vCenter Virtual Appliance, VDS, virtual distributed switch, Virtual Network Identifier, virtualization, vmware, VMware ESXi, VMware NSX, VMware vCenter, VMware vSphere, VMware vSphere 5.5, VMware vSphere ESXi, VMware vSphere ESXi 5.5, VMware vSphere vCenter, VMware vSphere vCenter Virtual Appliance, VNI, vSphere, vSphere 5.5, vSphere vCenter, vSphere vCenter Virtual Appliance, VXLAN | Leave a comment

Creator of Perl, Larry Wall, on Programming Languages

Posted on August 23, 2014 by Humair

Creator of Perl, Larry Wall, when asked, “What are the five programming languages everyone, even non-programmers, should know about and why?”:

Posted in Perl, Programming Languages, Technology | Tagged Creator of Perl, Larry Wall, perl, Programming Languages | Leave a comment

MariaDB and the Future of MySQL

Posted on June 1, 2014 by Humair

As you may know by now, since the acquisition of Sun Microsystems by Oracle in 2009 for $7.4 billion, there has been some uncertainty in the industry on the future of MySQL which Sun Microsystems itself acquired for $1 billion … Continue reading →

Posted in Business, Databases, Fedora, Linux, MariaDB, openSUSE, Red Hat Linux Enterprise, Slackware, SUSE Linux Enterprise, Technology, Technology | Tagged Andrew Riston, Fedora, forked, forked MySQL, Google, Jaroslav Reznik, MariaDB, MariaDB vs MySQL, Michael "Monty" Widenius, Microsoft SQL Server, Microsystems, Monty, Monty Widenius, MySQL, MySQL documentation, MySQL forked, open source, openSUSE, Oracle, Oracle acquires Sun Microsystems, Oracle Express, Red Hat Linux Enterprise, Slackware, SQL, Sun, Sun Microsystems, Sun Microsystems acquires MySQL, SUSE Linux Enterprise, Widenius, Wikipedia | Leave a comment

openSUSE 13.1 and Useful Apps

Posted on May 24, 2014 by Humair

openSUSE 13.1 has been released. I just installed it on an old HP 6530b laptop without issue. Screen resolution, volume, wireless internet, and USB device recognition all seem to work without any additional mucking around. Of course things may not … Continue reading →

Posted in Linux, openSUSE, Operating Systems, Technology | Tagged Eclipse, Eclipse install, Eclipse Keplar install, Eclipse Kepler, Eclipse Plug-in, GIMP, GNU Image Manipulation Program, Gwenview, HP 6530b, HP 6530b laptop, HP 6530b laptop linux, HP 6530b Linux, HP Linux, Instal Java, Java, Java JDK, JDK, jdk-8u5-linux-x64.rpm, KDE, KDE Desktop, KDE Image Viewer, KDE Photo Viewer, LibreOffice, linux, Linux distribution, Linux distributions, Linux Image Editor, Linux Image Viewer, linux laptop, Linux Office Suite, Linux Photo Editor, Linux Photo Viewer, openSUSE, openSUSE 13.1, openSUSE distribution, openSUSE Linux, openSUSE Linux distribution, openSUSE on HP 6530b, openSUSE on HP 6530b laptop, Oracle Java, Oracle Java JDK, Oracle Java RPM, Packman, PyDev, PyDev Eclipse, PyDev Eclipse Plug-in, suse, SUSE distribution, SUSE Linux, symbolic link, update-alternatives, update-alternatives Java, Video Player, VideoLAN, VideoLAN Linux, VideoLAN openSUSE, VideoLAN Packman, VideoLAN player, VLC, VLC Linux, VLC openSUSE, VLC Packman, VLC Video Player, zypper, zypper install jdk | Leave a comment

EMEA DEF HOL Labs – Get Hands-on Experience with Dell Networking, Servers, and Storage

Posted on April 15, 2014 by Humair

EMEA Dell Enterprise Forum (DEF) kicked off this week in Frankfurt, Germany. Great venue with tons of information and training for Dell customers and partners. Make sure to stop by the Hands-on labs in the Skyloft. I will be there … Continue reading →

Posted in Dell, Dell Compellent, Dell Force10, EMEA Dell Enterprise Forum 2014, Fibre Channel, Networking, Storage, Tech Events, Technology | Tagged DEF, Dell Active Fabric Manager, Dell Enterprise Forum, Dell Enterprise Forum 2014, Dell FC Flex IO Module, Dell Fc Flex IOM, Dell Force10, Dell MXL, Dell MXL Blade Switch, Dell MXL Blade Switch with FC Flex IO Module, Dell MXL Blade Switch with FC Flex IOM, Dell N-Series, Dell Networking, Dell S5000, Dell S6000, Dell Servers, Dell Storage, EMEA DEF, EMEA DEF 2014, EMEA DEF Frankfurt Germany, EMEA Dell Enterprise Forum, EMEA Dell Enterprise Forum 2014, Enterprise Forum 2014, FC Flex IO Module, FC Flex IOM, Frankfurt Gerany, mlag, Multi-chassis Link Aggregation, NPG, NPIV Proxy Gateway, VRF-lite | Leave a comment

Automating VLAN Configuration on Dell FTOS Switches via GVRP

Posted on February 22, 2014 by Humair

GARP VLAN Registration Protocol (GVRP) is a standards-based protocol defined in the IEEE 802.1Q specification that provides for automatic VLAN configuration on switches. The Generic Attribute Registration Protocol (GARP) is used by switches supporting GVRP to register/de-register attribute values such … Continue reading →

Posted in Dell, Dell Force10, Labs, Networking, Protocols, Technology, Troubleshooting | Tagged 802.1q, automatic VLAN configuration, Cisco Virtual Trunnk Protocol, Cisco VTP, Cisco VTP transparent mode, Dell, Dell Force10 S50, Dell Force10 S50N, Dell Force10 S60, Dell Networking S60, Dell S50, Dell S50N, Dell S60, dynamic VLAN, dynamic VLAN creation, dynamic VLANs, Force10 S50, Force10 S50N, Force10 S60, FTOS, GARP, GARP VLAN Registration Protocol, Generic Attribute Registration Protocol, GVRP, GVRP and MSTP, GVRP and PVST, GVRP and STP, GVRP and VTP, GVRP Join, GVRP Leave, GVRP LeaveAll, GVRP or VTP, GVRP troubleshoot, GVRP troubleshooting, GVRP vs VTP, IEEE 802.1Q, protocol gvrp, S50, S50N, S60, STP, Transparent Mode, troubleshoot GVRP, troubleshooting GVRP, Virtual Trunnk Protocol, vlan, VLAN de-registration, VLAN registration, VTP, VTP transparent mode | Leave a comment