uncleflo
Registered since September 28th, 2017
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How are you guys handling QA environments on AWS? : aws
Saved by uncleflo on July 11th, 2019.
News, articles and tools covering Amazon Web Services (AWS), including S3, EC2, SQS, RDS, DynamoDB, IAM, CloudFormation, Route 53, CloudFront, Lambda, VPC, Cloudwatch, Glacier and more. Just a curiosity. At this point I've done: single staging environment for small teams, and that obviously doesn't work well beyond a couple; one off EC2 instances that just use docker to make a mini-replicated environment; cloudformation to spin up an entire, and yet smaller, version of our production; ngrok and just having our QA test directly. The area I'm interested to see how people are handling it is with respect to data. Are you replicating the full DB? Just using in memory and some seed data? Additionally, for those of you that have this (or have had one in the past), how did you guys set it up to be "pleasurable" to work with? By that I mean it not being some long winding rube goldberg machine that almost defeats the purpose of having a CI.
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Working with Amazon Aurora Global Database - Amazon Aurora
Saved by uncleflo on June 23rd, 2019.
Following, you can find a description of Amazon Aurora Global Database. Each Aurora global database spans multiple AWS Regions, enabling low latency global reads and disaster recovery from region-wide outages. An Aurora global database consists of one primary AWS Region where your data is mastered, and one read-only, secondary AWS Region. Aurora replicates data to the secondary AWS Region with typical latency of under a second. You issue write operations directly to the primary DB instance in the primary AWS Region. An Aurora global database uses dedicated infrastructure to replicate your data, leaving database resources available entirely to serve application workloads. Applications with a worldwide footprint can use reader instances in the secondary AWS Region for low latency reads. In the unlikely event your database becomes degraded or isolated in an AWS region, you can promote the secondary AWS Region to take full read-write workloads in under a minute.
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AWS Marketplace: CentOS 7 (x86_64) - with Updates HVM
Saved by uncleflo on May 24th, 2019.
This is the Official CentOS 7 x86_64 HVM image that has been built with a minimal profile, suiteable for use in HVM instance types only. The image contains just enough packages to run within AWS, bring up an SSH Server and allow users to login. Please note that this is the default CentOS-7 image that we recommend everyone uses. It contains packages that are updated at points in time to include critical security updates.
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AWS Autoscaling | Autoscaling and Load Balancing in AWS | AWS Training | Edureka - YouTube
Saved by uncleflo on May 24th, 2019.
In this Edureka tutorial on AWS Autoscaling and Load balancing, you will learn how to implement Autoscaling and Load Balacing service in AWS practically. Also, we will see how we can divert our traffic to different servers based on their path name. We have covered the following topics in this tutorial: What are Snapshots and AMIs? Why AutoScaling? What is AutoScaling? What is a Load Balancer? Hands-on.
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Mounting NFS on a Windows Client
Saved by uncleflo on January 3rd, 2019.
Complete the following steps to mount NFS on a Windows client: The UID and GID values are set in the Windows Registry and are global on the Windows NFS client box. This solution might not work well if your Windows box has multiple users who each need access to NFS with their own permissions, but there is no obvious way to avoid this limitation. To set up the Windows NFS client, mount the cluster, map a network drive, and configure the user ID (UID) and group ID (GID). The Windows client must access NFS using a valid UID and GID from the Linux domain. Mismatched UID or GID will result in permissions problems when MapReduce jobs try to access files that were copied from Windows over an NFS share. Because of Windows directory caching, there may appear to be no .snapshot directory in each volume's root directory. As a workaround, force Windows to re-load the volume's root directory by updating its modification time (for example, by creating an empty file or directory in the volume's root directory).
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OFFSCALE Get your database under control
Saved by uncleflo on June 7th, 2017.
Ready for the cloud. Creating so many DB snapshots that you never find the one you need? We’ll help you manage them! Reseting a server is easy but rolling back the DB is hard? Not anymore! Your database runs in someone else’s cloud? No problem! OffScale runs on your laptop and on the virtual server with the same ease
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A Guide to Install and Use ZFS on CentOS 7
Saved by uncleflo on October 31st, 2016.
ZFS, short form of Zettabyte Filesystem is an advanced and highly scalable filesystem. It was originally developed by Sun Microsystems and is now part of the OpenZFS project. With so many filesystems available on Linux, it is quite natural to ask what is special about ZFS. Unlike other filesystem, it is not just a filesystem but a logical volume manager as well. Some of the features of ZFS that make it popular are: Data Integrity - data consistency and integrity are ensured through copy-on-write and checksum techniques; Pooling of storage space - available storage drives can be put together into a single pool called zpool; Software RAID - Setting up a raidz array is as simple as issuing a single command; Inbuilt volume manager - ZFS acts as a volume manager as well; Snaphots, clones, compression - these are some of the advanced features that ZFS provides.
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CutyCapt - A Qt WebKit Web Page Rendering Capture Utility
Saved by uncleflo on January 24th, 2014.
CutyCapt is a small cross-platform command-line utility to capture WebKit's rendering of a web page into a variety of vector and bitmap formats, including SVG, PDF, PS, PNG, JPEG, TIFF, GIF, and BMP. See IECapt for a similar tool based on Internet Explorer.
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21.2. The Z File System (ZFS)
Saved by uncleflo on September 20th, 2013.
The Z file system, originally developed by Sun™, is designed to use a pooled storage method in that space is only used as it is needed for data storage. It is also designed for maximum data integrity, supporting data snapshots, multiple copies, and data checksums. It uses a software data replication model, known as RAID-Z. RAID-Z provides redundancy similar to hardware RAID, but is designed to prevent data write corruption and to overcome some of the limitations of hardware RAID.
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None
Saved by uncleflo on July 13th, 2013.
In this doc we explain how to put clonezilla live in your harddrive which already has an OS installed. Here we use grub boot loader as an example. You have to put the clonezilla live files in a FAT, ext2/3, reiserfs or any grub supported partition. If you do not have such a partition, you can use gparted to resize your partition and create another partition to put clonezilla live. Here we assume you already have a FAT partition /dev/sda4 to put clonezilla live.
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backup - In linux, how do I create/restore an image snapshot of my entire drive? - Super User
Saved by uncleflo on July 4th, 2013.
I'm too spoiled by Windows utilities that take a digital snapshot of your entire drive, which you can then restore from in the event of a drive crash. (e.g. like Time Machine for Mac OS X). Is there a similar way of doing this in Linux?
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How To Set Red hat / CentOS Linux Remote Backup / Snapshot Server
Saved by uncleflo on July 4th, 2013.
I've HP RAID 6 server running RHEL 5.x. I'd like to act this box as a backup server for my other Red Hat DNS and Web server. The server must keep backup in hourly, daily and monthly format. How do I configure my Red Hat / CentOS Linux server as remote backup or snapshot server? Answer: rsnapshot is easy, reliable and disaster recovery backup solution. It is a remote backup program that uses rsync to take backup snapshots of filesystems. It uses hard links to save space on disk and offers following features:
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