Docker is actually an advance over virtualization without using its disadvantages. Virtualization uses some extra layers - hyper visor, Guest OS, it’s individual binaries and then the respective apps whereas using docker daemon replaces these layers and starts in milliseconds and achieves the same objective . So, in…
Devops
Answered Nov 9, 2019
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One can create custom variables and these can be used within the service definition for defining a service. There are 2 main standards for defining custom variables. Custom variables need to be started with an underscore i.e. (_), to avoid name collision with already present standard variables. These variables will be…
Devops
Answered Nov 7, 2019
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While acknowledging an alert or scheduling it for downtime, special comments can be added to let other user’s know the details and hence no action should be taken at any end. These comments can actually provide an important piece of information as to why the service state is DOWN or the servers are put into downtime…
Devops
Answered Nov 7, 2019
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Before starting with I AM one should full fill below prerequisites - Have an AWS account. Access to root account Setting up IAM for the first time. IAM can only be used from root account, hence login your root account with credentials and then setup MFA (Multi factor authentication) for added security. After setting…
AWS
Answered Nov 5, 2019
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One template & the available checks/services can also be inherited in existing one. This reduces the duplicacy of creating template for same checks again & again. In order to enable one has to simply put the name of the template to be used in existing one.
Devops
Answered Nov 5, 2019
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Below steps need to be followed- Sign in to AWS root console Choose “users” in the navigation pane. Hit “Security Credentials” adjacent to “Assigned MFA device” then choose “Manage. Select “Virtual MFA device” and choose “continue”. Open virtual MFA app list and install one on your smartphone, (eg. Google…
AWS
Answered Nov 4, 2019
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Identity Access Management (IAM) is a way of how a user uses AWS resources. It empowers users to manage access to various AWS resources /services in a secure way. AWS uses users/groups, policies via IAM to allow/disallow permission for specific or set of AWS resources. via IAM it is not always required to use “root”…
AWS
Answered Nov 2, 2019
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