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Home » aws tutorials » Page 14

Increasing MTU for Your EC2 Instance

2023-06-05T02:27:26+00:00

What is MTU? MTU (maximum transmission unit) is the maximum size of one packet of data that can be transferred in a network. The default MTU size for Ethernet devices is 1500 bytes. This packet size contains the actual payload data as well as network overhead information needed for communication within the network. All AWS EC2 instances support the default MTU size. But many current instance sizes support 9001 MTU, also referred to as jumbo frames. Enabling jumbo frames for supported EC2 instances can be beneficial because it improves network efficiency by allowing your instance to send fewer packets with [...]

Increasing MTU for Your EC2 Instance2023-06-05T02:27:26+00:00

Amazon Cognito User Pools vs Identity Pools

2024-08-29T01:45:49+00:00

Bookmarks Amazon Cognito User Pools Amazon Cognito Identity Pools With the proliferation of smartphones in our connected world, more and more developers are quickly deploying their applications on the cloud. One of the first challenges in developing applications is allowing users to log in and authenticate on your applications. There are multiple stages involved in user verification and most of these are not visible from the end-user. AWS provides an easy solution for this situation. User Identity verification is at the core of Amazon Cognito. It provides solutions for three key areas of user identification:  [...]

Amazon Cognito User Pools vs Identity Pools2024-08-29T01:45:49+00:00

Locking your Glacier Vault using the Amazon S3 Glacier API

2023-06-05T03:07:24+00:00

What is Amazon S3 Glacier Vault Lock A Glacier Vault can be described as a container for your archived objects in S3 Glacier. To begin using Amazon S3 Glacier, you need a vault. Creating and deleting vaults can be easily done in the AWS Management Console, but interacting with them requires you to use the APIs. For example, let’s say you want to upload images or log files to your vault. To do so, you would either use the AWS CLI or write code that would upload these objects. Large corporations often have compliance requirements with how they store their [...]

Locking your Glacier Vault using the Amazon S3 Glacier API2023-06-05T03:07:24+00:00

Amazon S3 Bucket Policies for VPC Endpoints

2023-06-05T03:11:03+00:00

Amazon S3 and Amazon VPC Relationship Amazon S3 is a versatile object storage solution that boasts virtually unlimited storage capacity. You can expect that your files will be durably stored in S3 given that AWS provides an SLA for this service. When creating your S3 bucket, AWS provides you with a unique bucket URL that you can use to access your S3 bucket directly from the public internet, if you have public access enabled.  Amazon S3 is a service that is not used within a VPC. This means that traffic does not pass through VPC resources such as internet gateways [...]

Amazon S3 Bucket Policies for VPC Endpoints2023-06-05T03:11:03+00:00

AWS KMS Key Policy Management in AWS KMS

2024-07-11T12:32:27+00:00

What is an AWS KMS key? In security, a KMS key is what you use to encrypt all other encryption keys in your system. KMS key is a logical representation of a cryptographic key. They are the primary resources in AWS KMS. The AWS KMS Key contains the key material used to encrypt and decrypt data. It also contains metadata such as the key ID, creation date, description, and key state. You can start using AWS KMS through the web console or via API. There are two types of AWS KMS keys that you can create in AWS KMS: symmetric [...]

AWS KMS Key Policy Management in AWS KMS2024-07-11T12:32:27+00:00

The New Tutorials Dojo Practice Test Portal is now LIVE!

2023-06-07T07:01:16+00:00

The New Tutorials Dojo Practice Test Portal is now LIVE! For the past two years of offering practice test courses on Udemy, we have gathered tons of feedback on how to improve our students’ learning experience. One of the most commonly requested feature is the ability to view the answers as you go through each question. A lot of you are able to learn better with this mode vs. having to wait to finish the entire set before being able to see the answer key. It is therefore with absolute delight that we announce the availability of this feature plus [...]

The New Tutorials Dojo Practice Test Portal is now LIVE!2023-06-07T07:01:16+00:00

Redis (cluster mode enabled vs disabled) vs Memcached

2023-04-10T05:29:45+00:00

  Redis (cluster mode enabled) Redis (cluster mode disabled) Memcached Data Types string, sets, sorted sets, lists, hashes, bitmaps, hyperloglog, geospatial indexes string, sets, sorted sets, lists, hashes, bitmaps, hyperloglog, geospatial indexes string, objects (like databases) Data Partitioning (distribute your data among multiple nodes) Supported Unsupported Supported Modifiable cluster Only versions 3.2.10 and later  Yes Yes Online resharding Only versions 3.2.10 and later  No No Encryption 3.2.6, 4.0.10 and later 3.2.6, 4.0.10 and later Unsupported Sub-millisecond latency Yes Yes Yes FedRAMP, PCI DSS and HIPAA compliant 3.2.6, 4.0.10 and later 3.2.6, 4.0.10 and later No Multi-threaded (make use of multiple [...]

Redis (cluster mode enabled vs disabled) vs Memcached2023-04-10T05:29:45+00:00

Latency Routing vs Geoproximity Routing vs Geolocation Routing

2023-04-10T03:27:57+00:00

  Latency Routing Geoproximity Routing Geolocation Routing Definition Lets Route 53 serve user requests from the AWS Region that provides the lowest latency. It does not, however, guarantee that users in the same geographic region will be served from the same location. Latency-based routing is based on latency measurements performed over a period of time, and the measurements reflect changes in network connectivity and routing. Lets Amazon Route 53 route traffic to your resources based on the geographic location of your users and your resources.  You can also optionally choose to route more traffic or less to a given resource [...]

Latency Routing vs Geoproximity Routing vs Geolocation Routing2023-04-10T03:27:57+00:00

Backup and Restore vs Pilot Light vs Warm Standby vs Multi-site

2023-04-10T06:17:02+00:00

You should select the most appropriate DR plan to meet your company RTO and RPO. Consider also your budget and which system elements are most critical for your business. Backup and Restore Pilot Light This DR plan provides the slowest system restoration after a DR event. You take frequent snapshots of your data such as those in Amazon EBS Volumes and Amazon RDS databases, and you store them in a durable and secure storage location such as Amazon S3. There are many ways for you to move data in and out of S3 Transfer over the network via S3 Transfer [...]

Backup and Restore vs Pilot Light vs Warm Standby vs Multi-site2023-04-10T06:17:02+00:00

Redis Append-Only Files vs Redis Replication

2023-04-10T05:21:12+00:00

Redis Append-Only Files (AOF) Redis Replication You can enable the Redis append-only file feature (AOF) for data durability. It is similar to creating manual backups. When enabled, the node writes all of the commands that change cache data to an append-only file.  When a node is rebooted and the cache engine starts, Redis goes through an AOF to replay the actions that were performed before the crash; the result is a warm Redis cache with all of the data intact. To enable AOF for a cluster running Redis, you must create a parameter group with the appendonly parameter set to [...]

Redis Append-Only Files vs Redis Replication2023-04-10T05:21:12+00:00

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