AWS migration, starting small and slowly moving your production services into AWS Cloud Services. I may be late to the game, but better late than never. AWS serverless services can be used to augment, improve and optimize the availability of your onpremises production services.

If you do decide to start with AWS open 3 AWS Linked Accounts, first AWS account should be only the AWS billing account, open a second and third account. The second AWS account should be the account onto which you start deploying some production payload and the third account can be the account from which you and other admins login and assume the roles into account 1 and 2. In addition using AWS linked accounts or AWS Organizations enables to have one consolidated bill. This piece of information did not become available to me in the first trainings I subscribed to. It is mentioned in the more advanced courses. If you are a Linux Sys Admin then your burden to the cloud is lessened further because all public clouds with one exception run on Linux. So more power to you.

I have obtained two AWS certifications and there still things that are not apparent, only when starting with production into AWS one can truly understand to a better depth the finer nuances in the AWS cloud. So far the monthly bill is under fifty dollars but the returns are a few fold more valuable. For starters, most everyone in systems admin roles may find some small production feature to migrate to AWS, even if they are just beginning with AWS.

If you have some static website that just needs to be highly available you can move it to the AWS cloud CloudFront or S3, or a logo for an email signature. Extremely useful to use are Route 53 health-checks monitoring on-premises  public facing services. If you have a public website hosted on premises then throw a few healthchecks into AWS cloud, to monitor your website’s availability. You can setup route 53 healthchecks with CloudWatch Alerts, that subscribe to an SNS topic and email when you have on outage to the website. Even if your website is at home you can put an AWS healthcheck on it. FYI AWS healthchecks to non AWS resources are pricier.

It is not apparent that even if the healthchecks in Route 53 are global, the CloudWatch Alarms are hosted only in the North Virginia Region (US-EAST-1). Moreover you can host a static website in CloudFront with an origin in S3 to minimize the exposure of your perimeter network. AWS services are changing and improving at rapid pace and many features of your on-premises production services can be moved to AWS microservices at a fraction of the cost. I can understand that the principle of “Why not host it on premises if the infrastructure exists”, is still strong, but some of the services offered by AWS are making your Sys admin life much easier than hosting complicated solutions for trivial payloads. In this manner there are less things for you to worry about.

As a sysadmin beginner in a small environment Studying the AWS cloud or any other major cloud, and how infrastructure is provisioned and architected in the cloud can open your eyes on how large organisations handle tens of thousands of servers or instances. It may not be apparent once you are starting with AWS but new avenues will open before you as you start to migrate to AWS cloud services some of your smaller resources. And I say AWS services because it is a great excuse to migrate some small production resource to AWS Serverless architecture. Once you go serverless there is no additional overhead like patching, restarts scheduling maintenance and the like. Just like in a book if you capture a wagon of supplies from the enemy is worth 20 of yours, or something like that. In a similar instance if you manage to outsource to AWS one payload and decommission a VM instance then is like you don’t have to take care of 20 VM.

I feel that if you can decommission a few virtual machines and migrate to AWS serverless service, there’s none more to gain. In this manner you can reduce the onpremises exposure to the outside, and also you can restructure to a smaller and less complicated infrastructure as time goes on. Or in the least you don’t need to manage those decommissioned instances.

I began this AWS journey to challenge myself, but many questions have been answered by studying the cloud about how things are done in other organisations or how should I do things better. Now I feel that the AWS migration can be done as the AWS services grow, add and improve their features.If there is a lot of resistance in your organization for going to the cloud then try migrating relatively simple resources to AWS services. There is an added benefit for the Sys Admins having a less to worry.

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Hard Disk HDD vs SSD Throughput comparison

by admin on September 8, 2018

I was working today on about 160 GB of Audacity files. I recorded sound for  days and now working with all the files has been a monumental challenge. It takes a lot of patience for Audacity to process all the data and presented in a nice GUI. scrolling and zooming in you click and then you have to take a break. So I remembered that I had some spare SSD drives that I could use now and work with the files. So I started transferring the files from the regular 4 TB passport USB 3.0 drive to the SSD drive. and below is an image of the throughput of both drives.

 

Let’s let the images do the talking below:

SSD disk Throughput VS HDD

 

HDD to SSD

 

HDD disk Throughput vs SSD

 

Both disks are attached through USB 3.0 and we are copying from the HDD Disk 2 to SSD Disk 3. The copy job failed half way through because perhaps something was wrong with the way files were organised. I did not read the mesage but it took about 40 minute to copy about 90 GB from the HDD to the SSD. A truer test would actually let us know if the USB 3.0 would be some sort of a bottle neck. Even if the SSD disk was only using 14% of its bandwith ingesting the data. we do not know if the USB port is capping the throughput. We would have to use a second SSD disk and copy from the Disk 3 to another. preferably of the  same make and capacity.

 

Luckily we had a second identical (excepting serial number) SSD Disk and below is the benchmark. The bandwidth must be limited by the USB along with some othe parts, because the disks work at about 40% of their throughput.

SSD throughptut vs USB 3.0

 

SSD to SSD

We also had speeds of about 130 MBs per second but the USB supplied power may have not been enough. The disks unmounted a few times. So get an USB that has an external power dapter/transformer to avoid that.

 

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BcedEdit, BcdEdit Multiboot, Multiboot Wim files, MultiBoot WIM DVD, MultiBoot WIM USB Stick

September 4, 2018

class=”entry-title”>BcedEdit, BcdEdit Multiboot, Multiboot Wim files, MultiBoot WIM DVD, MultiBoot WIM USB Stick Download the Computer Manual PDF eBook and PC Help Videos< While you are downloading check the Computer Manual contents and get Windows Support and PC Help If you have Amazon Prime  any kind of kindle device you can borrow The Computer Manual for […]

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Malwarebytes USB boot, Malware USB, malware boot, Custom USB Stick

September 4, 2018

How to make a boot usb with malwarebytes? Run Malwarebytes from flash drive? Download malwarebytes to flash drive. Malwarebytes Portable. How to create a Malwarebytes USB Boot able flash drive which contains malware antivirus software? Simple, you download the ISO from Malwarebytes ISO, then use 7 zip to extract the ISO onto a USB flash drive then use the Malware […]

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Operating System Backup, windows backup, online backup solution, offsite backup

September 4, 2018

Operating System Backup, windows backup, online backup solution, Offsite Backup If you’re in the process of upgrading the hard drive you need to perform an Operating System Backup and then restore it on the new hard drive. You can perform a Windows Backup with Windows PE and Imagex. There are many ways how to do this but this one of the readily […]

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September 4, 2018

What is an ISO file or ISO image? An ISO File or ISO Image very succinctly is a file that emulates a CD, DVD or blue ray. There are a few technical standards for the ISO image but those can be found online. The purpose of this post is to get you started working with […]

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Rootkits, Malware and Rootkit Removers.

September 4, 2018

Rootkits, Malware and Rootkit Removers. Over the weekend we dealt with a computer which was possessed by all kinds of malware. This computer would still work but the CPU Load was constantly at 100% and no work could get done. Therefore we needed a rootkit remover, we were working diligently to find a good rootkit […]

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Install RSAT Tools for Windows 10

September 4, 2018

RSAT Windows 10. If you ever need to install the RSAT tools to windows 10 and you have problems, try this: Download the respective MSU package from Microsoft, Extract the cab file with 7zip or with the command “expand -F:* c:\users\yourusername\downloads\WindowsTH-RSAT_TP5_Update-x64.msu c:\users\yourusername\downloads\rsattools\WindowsTH-KB2693643-x64.cab”. If you use the expand command to extract the files, the resulting cab file […]

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Cybersecurity, Computer Security, Internet security, Personal Cybersecurity

September 4, 2018

Cybersecurity starts with you the individual, at home is your personal cybersecurity, and at work is called cybersecurity. This is a way of describing your computer security and internet security. Establish good behavior to protect your selves from massive campaigns of harvesting your sensitive data. Cybersecurity is an ongoing topic that needs a refresh every several months because the methods of compromising your online […]

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Mouse not working trough RDP into vMware VM Console

September 8, 2016

Mouse not working trough RDP into vMware VM Console I noticed that I could no longer use a mouse when I was using RDP to a workstation trough which was necessary to access any virtual machine trough the VM console. Cannot use mouse trough RDP into a VMware VM console. There were a few topics […]

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