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Managing Snapshots and Maintenance in Nagios Log Server


This article covers how to manage Snapshots and Maintenance in Nagios Log Server. Here, You will learn method to create and manage backups and Repositories and how to manage your Nagios Log Server Maintenance.

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Can't read from the source file or disk - Fix it Now ?


This article covers how to fix "can't read from the source file or disk" error.
Basically, this error triggers when trying to copy certain files to or from an external hard disk.
Many users have reported that they got "Can't read from the source file or disk" error message while copying, deleting or moving files from one location to another.

To fix Error Message: Can't read from the source file or disk:
1. Restart the PC
If you can't read from the source file or disk while copying in Windows 10, and this happens for the first time, try restarting the computer (do not turn off and on, just restart).
Rebooting helps the computer deal with such errors on its own and returns it to an adequate working state.
2. Check the file name
Changing the file name is justified when the file was created in one OS, and its use occurs in another. You may not be able to read from the source file or disk while deleting after using this file on the command line. If this is your situation, be sure to rename the file properly and restart the computer after that.
3. Try to open the file on another PC
Try to do the same as in method 2, but on another PC. Better yet, if it will be a completely different OS (for example, you have Windows installed, then look for a computer with a Mac, etc.).
This will help get rid of any conflicts between the file and the computer, which can happen quite often.
4. Use chkdsk to fix bad sectors
The free chkdsk utility usually handles such errors with ease.

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Copy rds snapshot to s3


This article will guide you on resolve common rds #error. Basically, the process to copy rds snapshot to s3 is simple and creates and saves backups of the DB instance in the Amazon S3 bucket. 

Amazon Relational Database Service (#Amazon RDS) makes it easy to set up, operate, and scale a relational database in the cloud. It provides cost-efficient and resizable capacity while automating time-consuming administration tasks such as hardware provisioning, database setup, patching and backups.

RDS creates a storage volume snapshot of your #DB instance, backing up the entire DB instance and not just individual databases. RDS saves the automated backups of your DB instance according to the backup retention period that you specify.

To copy a #RDS snapshot from one region to another:

1. Create a #snapshot of your RDS.

2. In your newly created snapshot go to Actions -> Copy Snapshot.

3. Click orange View snapshots in destination region.

4. In the target region's snapshots table find your copied snapshot, and wait until status "Copying" becomes "Completed".

5. Select the snapshot, click Actions -> Restore Snapshot.

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Standard and Production Checkpoints in Hyper-V


This article will guide on how to choose between #Standard or #production #checkpoints in Hyper-V. We also look into the various aspects of standard and production checkpoints.

Hyper-V checkpoints allow IT #administrators to easily save the existing state of a virtual machine before any changes are made so that if a problem crops up due to the changes, the VM can revert to its previous state. A #snapshot of the virtual machine #memory state is not taken when using a production checkpoint.

To Change checkpoints to production or standard checkpoints:

1. In Hyper-V Manager, right-click the virtual machine and click Settings. 

2. Under the Management section, select Checkpoints. 

3. Select either production checkpoints or standard checkpoints.

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Solution to error VMWare virtual machine disks consolidation is needed


This article will help you to fix the warning error "VMWare: virtual machine disks consolidation is needed" experienced when trying to delete a snapshot, the snapshot VMDK files or logs have not been deleted correctly.

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Fix Unable to access file since it is locked error on vmware


This article will guide you through the steps you need to take to fix the VMWare "Unable to access a file since it is locked" error by restarting the Management Agent or ESXi host.

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Solve Error deleting snapshots in AWS


Best way to fix Error deleting EBS snapshot in AWS.

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How to securely back up your Linux Ubuntu Centos and Debian Server


#Backup and #restore refers to technologies and practices for making periodic copies of data and applications to a separate, secondary device and then using those copies to recover the data and applications—and the business operations on which they depend in the event that the original data and applications are lost.

#rsync uses what is called a delta-transfer algorithm which compares files from source and destination and sends only the differences between them.


To automatically backup #files and directories in Linux:

1. archive the content. Backing up your files using tar is very simple using the following command: # tar -cvpzf /backup/backupfilename.tar.gz /data/directory.

2. create backup script. Now let's add tar command in a bash script to make this backup process automatic.


#Rsync, or Remote Sync, is a free command-line tool that lets you transfer files and directories to local and remote destinations. 

Rsync is used for mirroring, performing backups, or migrating data to other servers.

Backing up file systems means copying file systems to removable media (such as tape) to safeguard against loss, damage, or corruption. 

Restoring file systems means copying reasonably current backup files from removable media to a working directory.

Data losses can be a very frustration encounter for a server owner. To avoid such catastrophic situations in losing your website data, it is very important to do a regular backup for your server and website.

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