Whats in the Release Notes. The release notes cover the following topics Whats New Earlier Releases of vCenter Server 6. Patches Contained in this Release. This is a personal blog for nonprofit educational purpose only. It has no affiliation with Oracle or any company and any views expressed here are of the author. Fix for properly installing VirtualBoxs VBox Guest Additions on CentOS 6. Testing latest Centmin Nginx install script in CentOS 6. Tutorial on Hacking With Kali Linux. Things get tough now. If you have no previous experience with Linux and virtual machines and all that stuff, getting Kali Linux up and running wont be a piece of cake. You have 2 options 3 options  1. Read the Kali official documentation That will give you an idea about what is a virtual machine, how OS can be run from USB, and how to create a partition and run 2 OS simultaneously. This is what I recommend. For that, go to Kali Official Documentation . Read my modified version of Kali documentation. Create-New-Virtual-Machine-on-VirtualBox.jpg' alt='Install Virtualbox Without Admin Privileges' title='Install Virtualbox Without Admin Privileges' />The second option is to look at these posts, which are just sparingly modified and now outdated versions of the Kali docs, and offer no advantage other than saving your time as their documentations cover much more than what the ones here do, and you dont really need to know all so much. Im linking them up here 3. Utilize the zillions of tutorials on You. Tube New optionThe time this guide was written for the first time in 2. Kali wasnt so popular. However, now there are plenty of websites dedicated to Kali Linux, and a lot of You. Tube videos on how to install Kali. My installation guides are outdated mine are for Kali 1. Kali 2. 0 is outdated and Kali rolling is what most of you should be using. While you can use an old installation guide and make a few changes and have it work for you, its better, especially if its your first time installing an operating system alongside another, that you follow a guide tailored for your situation eg. Kali rolling on Windows 1. Kali 2. 0 on Windows 8 on Vmware. Installing an OS is serious business, dont take it lightly, and dont get discouraged if you fail at first. Also, backup your data if youre going for a dual boot. Command Line Interface. Now, if you are really sure about becoming a hacker, you have to get used to linux, and specifically the command line interface. It is often compared to and rightly so to command prompt of Windows, but Linux cli is much efficient and better than command prompt. What you have to do is do all the usual tasks you do in Windows in cli of Linux. Use cd to navigate, poweroff to shutdown, etc. Going through the complete site is on its own enough exercise to keep you occupied for a month, but you can proceed gradually. The first few tutorials here will keep in mind that you dont have much info about cli, and will be really beginner friendly. If you build multiVM test clusters and have downloaded generic images from CentOSRHELUbuntuFedora you will have encountered the bootstrapping system known as. Here are a few simple steps to activate Windwos 10 build 10240 without using any cracks, hacks or third party software. PS Tapping lt tab while typing makes Kali complete the word for you. Double tapping lt tab makes it display all possible words starting with the incomplete word. Feed aggregator of hand picked System Administration, Information Technology, and Information Security related blogs. Exercise 1 Introduction to Solaris RBAC and Privileges. Expected duration 20 minutes. The goal of this exercise is to gain a basic understanding of the RBAC. Apple has official instructions for changing or resetting an account password in Lion Mac OS X 10. Mountain Lion Mac OS X 10. Linux vs Windows. Compare the two operating systems from an average users perspective. Find out the pros and cons of Linux and Windows. Boot USB Drive in VirtualBox by creating a Virtual Hard Disk that points to your physical USB Drive using VirtualBox command line utilities. Ctrlc stops the functioning of any tool that is running. Pressing the up arrow key shows the command you last typed. Cloud Images with cloud init Demystified. If you build multi VM test clusters and have downloaded generic images from Cent. OSRHELUbuntuFedora you will have encountered the bootstrapping system known as cloud init. The purpose of the post is to demystify cloud init and tips on how to use it effectively. There is a benefit to using these pre built VM images they are typically a minimal installation of the operating system and are regularly updated by their distributor. For such pre built images, the problem statement is as a distributor of VM images, how can I ensure my users can create Minimal Viable Instances, MVIs, that is, instances with a network address, an adminstrative user with credentials, and possibly, an automation agent. This problem has been solved by AWS starting from an AMI, the user creates an MVI from a combination of user data and the AWS metadata service hosted at the magic URL of http 1. Other cloud providers provide similar work flows, and it is the intention of cloud init to solve this problem from the instance end in a featureful manner, that is functional with and without the presence of a network metadata service. To this end, cloud init is a set of scripts that is embedded in the VM that reads from externally provided filesURLs and that enables the transition from a vanilla instance to a fully configured one. How do you know if you have a cloud init imageThis ought to be stated by the distributor. There will usually be no obvious root password or adminstrative user. Another tell tale sign is the infamous 1. AWS. and tries to GET information of the AWS metadata service. WARNING Calling http 1. WARNING Calling http 1. Gobi 3000 Windows 7 Driver there. WARNING Calling http 1. Vagrant. Lets first take a detour into the world of Vagrant and how it addresses this problem. Convertir Pdf En Ocr'>Convertir Pdf En Ocr. The pre built image is the Vagrant box. It simply has the following features DHCP enabled network interfacean adminstrative user password less sudo privileges vagrant, with a well known SSH authorized key, andor password vagrantthis known key andor password, allows the Vagrant tool to SSH into the VM and perform bring up tasks according to the Vagrantfile. Typically, Vagrant detects the IP address provided by Virtual. Box, changes the SSH key and provides the user with the corresponding private key. In addition, Vagrant can run many other commands such as installing an automation agent like a Salt minion. The user finishes the deployment through manual means via SSH, or the automation system. SSH credentials. It can be used to install an automation agent as well, and just like Vagrant, it can run arbitrary scripts. At this stage it begins to overlap with automation systems so it is up to the user to draw the line where cloud init ends and the automation system like Ansible begins. The Vagrantfile, is a set of files or URLs that cloud init consumes to bring up the VM. No network metadata service all metadata is obtained from local filesystems. Network configuration can be by DHCP or static. These local filesystems have magic signatures and specific named files on them. Network metadata service VM will use DHCP, and the metadata service will configure the rest of the system. In this case, the metadata is not usually used to rewrite the network configuration this remains under the purview of the DHCP system. A Data. Source is the abstraction that determines the URLs, list of files, and their interpretation. Cloud init consumes two types of configuration information meta data and user data meta data information about the instance itself such as a unique id and hostname, includes static network configurationuser data this is a catch all source, including shell scripts and cloud config DSL all are means to configure users, SSH keys, and other bring up tasks. The most well known is the AWS Data. Source meta data from http 1. A solo developer will generally use a Data. Source based on a local filesystem, in the absence of such a network metadata service. The simplest such Data. Source is No. Cloud there must be a local filesystem of type iso. This filesystem is usually attached to the VM as a cdrom or transient 2nd vdisk information is consumed from the root of this filesystem these paths are relative to the root of the cidata filesystem, not the VMs root filesystem. In the case of DHCP, the user obtains the IP address from DHCP management logs. Unlike Vagrant, there is no tooling to acquire the IP address. However some cloud init images will dump the IP address to the VM console. This minimal No. Cloud example with DHCP achieves Vagrant like nirvana we will have an adminstrative user with password less sudo privileges and a set of SSH credentials the creator of the image will declare the username of the adminstrative user. Admin username. Ubuntu ubuntu. Fedora fedora. Cent. OS centos. RHEL cloud user. DHCP no need for network config. Files in to be attached as second vdisk to the VM. False. password Passw. SSH paste the rest of the public key here assumes you have the private key. False. timezone USPacific. Note unlike Vagrant, you are expected to pre generate the SSH key and paste the public key into user data. Create a vdisk using libguestfs Caveat libguestfs on RHEL is too old, see comments inline files in nocloud nocloudmeta data noclouduser data. F raw t vfat labelcidata nocloud nocloud. Caveat virt make fs on RHELCent. OS is too old it will convert cidata. CIDATA, and cloud init will not recognise the drive. In this case use Fedora or Ubuntu to generate the vdisk or create an ISO. Assuming you have created a VM named cloud vm backed by a cloud init image. Fake Alert System Care Antivirus there. We start the image and attach the No. Cloud datasource as a transient vdisk. PWDnocloud. fat sdb. Obtain the IP address from the DHCP logs, you will be able to access the VM ssh to distro admin usernamevm ip address. VM console username is the admin user, password is Passw. Static Network Addressing. Like AWS VPC, and unlike legacy AWS networking, you may want to fully manage the instance with static addressing. No. Cloud provides this information in two ways Inline ENI this is a key value pair inside meta data. This is an older form of network configuration but is the only one supported by RHELCent. OS. ENI is a backcronym and an homage to the Debian configuration file etcnetworkinterfaces. Indeed, the value is a string formatted like this file. Another file in the No. Cloud disk network config that contains network information in YAML format. Vagrant nirvana with Static Addresses. Lets expand on our DHCP example by configuring static addressing. You will need to extract the instances mac address from your VM management system. For Cent. OSRHEL we use inline ENI meta data example with inline ENI. INSTANCEMACGOESHERE. For Ubuntu XenialZesty and Fedora we use network config network config on No. Cloud cidata disk. Fedora. type physical. INSTANCEMACGOESHERE. Note the mac address is crucial in the event that the instance has named the interface ens. When you boot the instance with this No. Cloud disk, either inline ENI or network config, it will get a static network address. Tips cloud init moves fast and the current documentation 0. RHELCent. OS, which are using the older v. Once the instance is up you should disable cloud init. If youdo not do this, cloud init will run again on reboot.