Ankur Vaish

Create an AMI, learn to take backups of existing instances and restore them.

Below are the steps need to be taken for AMI creation Choose instance and right-click for which an AMI (Amazon machine image) need to be created, goto image -> Create Image. In the open related window type the name of Image, description.

AWS

Answered Jan 7, 2020 · 1.8K Views Read answer →

What is a leader node and compute node?

In a leader node, the questions from the customer application are gotten and afterwards, the inquiries are parsed, and the execution plan is created. The means to process these questions are created and the outcome is sent back to the customer application. in a computer node the means appointed in the pioneer hub are…

AWS

Answered Jan 5, 2020 · 1.5K Views Read answer →

Define Amazon ElastiCache.

Amazon ElastiCache is an in-memory key-value store which is equipped for supporting two key-value engines – Redis and Memcached. It is a completely overseen and zero organizations which are solidified by Amazon. With the assistance of Amazon ElastiCache, you can either manufacture another superior application or…

AWS

Answered Jan 3, 2020 · 1.5K Views Read answer →

How many policies can be attached to an IAM role?

A total of 10 managed policies can be attached to a user role or group. Also, the respective size of each managed policy should not exceed 6,144 characters.

AWS

Answered Dec 19, 2019 · 1.7K Views Read answer →

How to assign permission using policies.

To assign permission there are 3 ways - Import - To import an already managed policy within your account and customize it as per your needs. A managed policy can be both i.e an AWS one or customer managed one. Visual Editor - To construct a new policy using visual editor i.e. to create from scratch. In case of editor…

AWS

Answered Dec 15, 2019 · 1.6K Views Read answer →

How to manage hosts?

For managing hosts, and other services core-config manager block or tab needs to be accessed under Advance configuration option. various options like - Adding hosts, Modifying hosts , copying, displaying etc. can be seen and used to perform various operations/configurations on adding or already added hosts. The screen…

Devops

Answered Dec 13, 2019 · 1.6K Views Read answer →

When to use an IAM role, IAM group & IAM user.

Whenever an AWS service needs access to other AWS services/resources then the IAM role comes into play. To grant access to IAM user of respective service or group of services IAM policies are assigned and to give access to a group of users (e.g. All users of say backup team needs access to S3 bucket & glacier) an IAM…

AWS

Answered Dec 1, 2019 · 1.8K Views Read answer →

How to configure services in Nagios.

Within the same file (used for host definition) services can also be defined or one can keep seperate files for service /service group based definitions. The only thing is the file needs to be end with .cfg extension and should be included inside the nagios.cfg file.

Devops

Answered Nov 19, 2019 · 1.7K Views Read answer →

How to manage services.

Services can also be managed via the same way as they are done for hosts/host - groups. i.e. via core config manager. Configure -> Core Config Manager -> Advanced Configuration -> Managed services option can be seen. Options like- Adding services, modifying, Deleting, copying services etc. can be seen and used as per…

Devops

Answered Nov 17, 2019 · 1.7K Views Read answer →

What is docker in Devops and a small overview on containers.

Docker is a service based platform used to share libraries from host kernel to launch applications/services as an isolated process known as ‘containers’. Containers are isolated from each other, each container may have a single service or group of services encapsulated within itself. These containers may also…

Devops

Answered Nov 16, 2019 · 1.9K Views Read answer →

What are managed policies?

The policies created by AWS itself i.e. which are predefined within an AWS account are known as managed policies. There are a number of policies already written by AWS and which are mentioned in each and every root account by default. These themselves are capable enough to solve many of the predefined accesses. This…

AWS

Answered Nov 13, 2019 · 1.6K Views Read answer →

Using multiple notifications.

Sending multiple notifications for the same alert should be avoided in order not to flood user’s mailbox and making alerts more noticeable instead of getting ignored. The best way is to define each service when the notification mail needs to be sent i.e. when the host is down, unreachable, scheduled downtime etc. The…

Devops

Answered Nov 9, 2019 · 1.7K Views Read answer →