Become a DevOps master

With the growth of new technology and appearing DevOps, SysOps, DevSecOps, and other words, many think that they are just like a simple word! but if you are passionate about DevOps methodology and if you want to become a developer or DevOps, you should be clear and have a good understanding about what they are. So, these roadmaps cover everything that is there to learn for the path listed below.

The aim of this roadmap is to give you an idea about the new landscape and a clear view if you are confused about what to learn next. So, recommend you to go to this link and use the article published there.

https://github.com/kamranahmedse/developer-roadmap

A problem to type Persian in Linux

I faced a problem in Linux to type Persian. I installed the Persian language in setting and after changing my keyboard, I couldn’t type Farsi. After investigating many websites, I noticed that this was a horrible bug. To solve this issue, you need to run a command runner (alt+f2) and type “r“. Then, you could choose Persian language and type Farsi in your Ubuntu.

I had this horrible bug (before downgrading to 3.32) where I would start an app normally (through Super-key menu or “command runner” (alt+f2)) and every time I refreshed my session (alt+f2 –> type “r”) gnome would just kill some of my apps.

Top 26 Tools for VMware Administrators

Virtualization is one of the popular technologies that are implemented in many IT environments. to work on virtualization technologies such as VMware vSphere, Citrix Xen or Microsoft Hyper-v, there are lots of application and tools that could make you possible to manager yoru virtualized infrastructure. in this article, we are providing many tools for administrators that is challenging to keep track of them all. most of them will be very useful for engineers to manage effectively their infrastructure. you could read the article.

source

1. As Built Report

As Built Report is an open source configuration document framework which generates and builds documents in XMLTextHTML, and MS Word formats using Windows PowerShell and PScribo.

Continue reading “Top 26 Tools for VMware Administrators”

Learning the Azure Kubernetes service

Kubernetes has emerged as the leader in the container orchestration and management platforms. However, this begs a question: Who will manage your Kubernetes Infrastructure? In this course, Azure Kubernetes Service (AKS) – The Big Picture, you will learn the skills to deploy a managed Kubernetes platform on Microsoft Azure without worrying about the underlying computer and management overhead. First, you will learn the fundamentals of Docker and Kubernetes and see how it applies to a Microservices Architecture. Next, you will discover how to deploy an application to a local Kubernetes Cluster and see how that experience translates to deploying the same application to Azure Kubernetes Service without any change to the deployment experience. Finally, you will see how easy it is to scale your application workloads in AKS, which will help you take your AKS skills to the next level and help you modernize and re-platform your application workloads on Microsoft Azure. By the end of this course, you will have a foundational knowledge of Azure Kubernetes Service that will help you deploy containerized workloads on Azure with minimal management overhead.
Anyway, you could learn this course thorough the course provided by https://www.pluralsight.com/courses/azure-container-service-big-picture

Docker introduction

Docker is an open platform management tool for Linux Containers. It provides a means for developers and system administrators to build and package applications into lightweight containers. Docker consists of the following components:

  • Docker Engine – A portable, lightweight runtime and packaging tool
  • Docker Hub – A cloud service for sharing applications and automating workflows

Docker is used to create image-based application containers. Image-based containers package an application with the individual runtime stack into a single container. This makes the container-independent from the host operating system and kernel version. As a result, you can run the same application, unchanged, on laptops, data center virtual machines, and any cloud. You can transfer this container to another machine that runs Docker and runs the application without any compatibility issues.

Continue reading “Docker introduction”

Azure Kubernetes service

Microsoft announced during this week’s Build Conference that its Azure Kubernetes Service (AKS), formerly known as “managed Kubernetes on Azure,” will reach general availability status “in the next few weeks.”

The official name change to AKS was noted by Gabe Monroy, program manager lead on containers for Microsoft Azure. He also was the former CTO of Deis, a maker of open source tools for Kubernetes, a company that Microsoft acquired last year. The name change is worth noting because Microsoft has an Azure Container Service (ACS) that also supports Kubernetes. The difference between ACS and AKS is that AKS adds automated support for upgrades and scaling capabilities, plus it has self-healing aspects, aiming to make spinning up containers on Kubernetes easier for developers.

Kubernetes itself is a container orchestration service for clusters that was originally fostered by Google. Microsoft lately has been working to make Kubernetes easier to use when hosted on its Azure datacenter infrastructure. Containers are operating system virtualization solutions, largely fostered by Docker, that aim to make it easier for applications to be hosted without conflicts.

Monroy indicated that AKS is now “part of the Kubernetes Conformance Program,” a certification program run by the Cloud Native Computing Foundation that assures it can be used in different environments. He also described some new features leading up to the coming general availability milestone.

The difference between VM and Container?

One of the most interesting terms in virtualization that is appeared recently is containers. The containers offering a new layer of virtualization that are fit for packaging application. This type of virtualization allows to quickly build and deploy a large number of hosts or containers in a very short time and saves lots of time and money as compared to installing and deploying physical servers.

Virtual machine ( VM )  have been around for a few years from now while containers are new as an alternative solution to VM. If you are familiar with containers and Docker platform, we want to talk about some basic distinction of VMs and containers. In the following, there are top five difference between VMs and Containers.

Continue reading “The difference between VM and Container?”

VCAP (VMware Certified Advanced Professional)… Why?

From 2 years ago, I decided to take part in VMware certification. last year, I have achieved the first certificate. Subsequently, I have got familiar with the next stage to complete your understanding and knowledge on VMware technologies and therefore, starting to study for VCAP-DCV exam. I’m of the opinion that, it is more difficult than all VMware certification in VCP level. I have read many articles and blogs about VCAP and it has always been a very elusive goal. While planning to participating in the exam, you should keep in mind: Why I have to become a VCAP expert. So, I realized many engineers to show their abilities and deep experience in designing or implementing, make best use of this qualification and get achieved this certification. you can read an interesting articles written by Balyparker

What’s New in vSphere 6.0 Fault Tolerance

What’s New in vSphere 6.0 Fault Tolerance

  • FT support upto 4 vCPUs and 64 GB RAM
  • Fast Check-Pointing, a new Scalable technology is introduced to keep primary and secondary in Sync by replacing “Record-Replay”
  • vSphere 6.0, Supports vMotion of both Primary and Secondary Virtual Machine
  • With vSphere 6.0, You will be able to backup your virtual machines. FT supports for vStorage APIs for Data Protection (VADP) and it also supports all leading VADP solutions in Market like symantec, EMC, HP ,etc.
  • With vSphere 6.0, FT Supports all Virtual Disk Type like EZT, Thick or Thin Provisioned disks. It supports only Eager Zeroed Thick with vSphere 5.5 and earlier versions
  • Snapshot of FT configured Virtual Machines are supported with vSphere 6.0
  • New version of FT keeps the Separate copies of VM files like .VMX, .VMDk files to protect primary VM from both Host and Storage failures. You are allowed to keep both Primary and Secondary VM files on different datastore

Top 10 IT Issues, 2015

I am reading a new article about the most important challenge in IT environments, i suddenly found this article which has covered significant issue in 2015 . Also i have posed to top 10 IT issue in 2015 after this link
source

Top 10 IT Issues, 2015

  1. Hiring and retaining qualified staff, and updating the knowledge and skills of existing technology staff
  2. Optimizing the use of technology in teaching and learning in collaboration with academic leadership, including understanding the appropriate level of technology to use
  3. Developing IT funding models that sustain core service, support innovation, and facilitate growth
  4. Improving student outcomes through an institutional approach that strategically leverages technology
  5. Demonstrating the business value of information technology and how technology and the IT organization can help the institution achieve its goals
  6. Increasing the IT organization’s capacity for managing change, despite differing community needs, priorities, and abilities
  7. Providing user support in the new normal—mobile, online education, cloud, and BYOD environments
  8. Developing mobile, cloud, and digital security policies that work for most of the institutional community
  9. Developing an enterprise IT architecture that can respond to changing conditions and new opportunities
  10. Balancing agility, openness, and security

 

Active Directory Replication Types

I find myself quite often trying to keep straight all the different replication activities that can occur within an Active Directory (AD) domain.

There is:

Intrasite Replication
    Urgent Replication
    Intersite Replication
    Intersite Change Notification Replication
    Reciprocal Replication
    Immediate Replication
    Manual Replication

Continue reading “Active Directory Replication Types”

Can I Virtualize ALL My DC’s In the Domain?

With the advent of Windows Server 2012 R2, Microsoft has worked diligently to provide support for virtualization and allow corporations to reduce costs by virtualizing as much hardware as possible. New features in 2012 R2 help prevent USN rollback and/or Lingering objects via the new VM-Generation ID.  If a guest o/s is restored from a snapshot the VM-Generation Id that is stored in the DIT (msDS-GenerationID attribute on the DC’s computer object) is compared to the value on the Host.  If they don’t match then the Invocation-Id is updated with a new value and any RID’s from the machine are replaced with a new set from the RID Master.

So the question is, “Do I need a physical DC in my Domain?”  Continue reading “Can I Virtualize ALL My DC’s In the Domain?”

DNS Zone Types Explained

Ace here again. I thought to touch base on DNS zones, and more so, focus on what AD integrated zones are and how they work. This blog almost mimics my class lecture on this topic. Check back for updates periodically, which I will notate with a timestamp above with whatever I’ve added or modified.

This topic was also briefly discussed in the following Microsoft Technet forum thread:
Technet thread: “Secondary Zones?”
http://social.technet.microsoft.com/Forums/en-US/winserverNIS/thread/c1b0f3ac-c8af-4f4e-a5bc-23d034c85400

source: http://blogs.msmvps.com/acefekay/2013/04/30/dns-zone-types-explained-and-their-significance-in-active-directory/

Understanding Lingering Objects in Active Directory and How To’s?

Continue reading “Understanding Lingering Objects in Active Directory and How To’s?”

10 Reasons Why Group Policy Fails to Apply

Group Policy can be difficult to design, implement, and troubleshoot unless you are fully aware of the foundational concepts that drive Group Policy with Active Directory. There are many moving parts with Group Policy, not to mention the reliance that Group Policy has on Active Directory functioning properly. When making changes within a Group Policy Object (GPO) in hopes for a desired outcome, only to have Group Policy not working correctly can be very frustrating.

many article is founded in internet about its problems. one of the best articles about reason for failing apply GPO is writen by derek melber. please check these links

http://www.windowsnetworking.com/articles-tutorials/windows-server-2008/Top-10-Reasons-Why-Group-Policy-Fails-to-Apply-Part1.html

http://www.windowsnetworking.com/articles-tutorials/windows-server-2008/Top-10-Reasons-Why-Group-Policy-Fails-to-Apply-Part2.html

http://www.windowsnetworking.com/articles-tutorials/windows-server-2008/Top-10-Reasons-Why-Group-Policy-Fails-to-Apply-Part3.html

thanks by www.windowsnetworking.com

Server 2008R2 SP1 reboot and Srv2.sys Driver Hotfix

last week , i try to work with Windows 2008 R2 server but my system restart frequently . after research i find Reboot problem. If these servers are using File Share or SMB v.2, srv2.sys may cause this problem.

Srv2.sys driver is root cause of this problem.

This is SMB 2.0 server driver. You can download hotfix KB2552033  for Windows Server 2008 R2 SP1 with your own risk until Microsoft officially release it.

annual voting vBLOG !

The annual voting for the top 50 virtualization blogs for 2014 is now open. Every year Eric Siebert takes a lot of time and puts this together over at vSphere-land.

I have contributed to the voting over the years and now this year for the first time my blog is part of this great list. I encourage each of you to head over here to cast your votes again this year or for your first time. Voting is only open until 03/17/2014 so hurry up. There are some great blogs on this list and I am honoured to be part of them this year. So if you have found any of my contributions to be worthy please take a moment and cast your vote. I spend a lot of time contributing here and hopefully you all find it useful. Happy voting and thanks for visiting my blog. (BTW! I am considered an independent blogger and new for 2013!)
http://www.surveygizmo.com/s3/1553027/Top-VMware-virtualization-blogs-2014

Enjoy!

Hyper-V 2012R2 vs. vSphere 5.5

Now that both Microsoft and VMware have officially announced the new released of their virtualization products it’s possible make an homogenous comparison between Hyper-V 2012 R2 (the fourth generation of Hyper-V) and vSphere 5.5.

VMware vSphere 5.5 introduces several news and scalability improvements, on the other side Microsoft Hyper-V 2012 R2 consolidate its features and improve what was already existing in the 2012 version, with a limited (but significant) new features. For example now, finally, some VMware old date features are mainstream also in Hyper-V, like VM hot cloning, hot disk resize (in this case also with the possibility to reduce the size).

Continue reading “Hyper-V 2012R2 vs. vSphere 5.5”

Compare VPN tunnel types in Windows

I am sure you must have experienced VPN reconnect – a new IKEv2 based VPN tunnel that is added in Windows 7 that allows automatic and seamless switchover of an active VPN connection when the underlying Internet interface (connection) changes thus maintaining application persistence.

Isn’t that COOL – like VPN user moving from Wifi to WWAN and back –  giving a true mobile connectivity to corpnet ! Yes it is…

 This means, Windows7 in-built VPN client and Windows 2008 R2 in-built VPN server (aka RRAS) supports following VPN tunnels:

  • ·        PPTP
  • ·        L2TP/IPSec
  • ·        SSTP
  • ·        VPN Reconnect (or IKEv2)

  Continue reading “Compare VPN tunnel types in Windows”

SYSVOL Folder Structure

About each folder under the SYSVOL share in Domain Controller

SYSVOL folder used to store a copy of the domain’s public files like system policies, Group Policy settings and logon/logoff scripts, which are replicated to all other domain controllers in the Active Directory domain through File Replication Services (FRS), You can find many folders inside the SYSVOL share, I would like to explore and explain each folder by how it’s used in the process of SYSVOL replication.

Continue reading “SYSVOL Folder Structure”

domain trust

trusting domain and the trusted domain

trust1

For the diagram above, we have the following summary:

When you create a trust from the Account Domain (trusted), the type of trust will be “incoming trust”.

When you create a trust from the Resource Domain (Trusting), the type of trust will be “outgoing trust”.

Remember that Direction of Trust is the opposite to Direction of Access.