Posts Tagged 'network'

IP Tables State

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24/7 Network Engineers came across a situation where the server intermittently became inaccessible. After troubleshooting the issue, they came to know that a few IP addresses were hammering the server, due to which legitimate connections were rejected.
IPTState is a utility that shows net filter connection tracking table in a “Top” format. It keeps an eye on traffic crossing net filter/Iptables firewall, interactively. It is very informative while tracking the network connection as well as the vulnerability of code for …

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Migrating Virtual Machines to Amazon AMI

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Virtual machines are being used to deploy an environment of Linux or Windows without manipulating the original OS on hard drive. You can easily migrate virtual machine images from your existing environment to Amazon AMI and destroy them from your PC. For this conversion. you need to fulfill the pre-requisite requirements.
Firstly, you have to create a virtual machine with a Single Disk HDD attached to it. During its creation, there are options of either using a Single Disk or …

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AWS CloudWatch – Defining Custom Metric

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Amazon CloudWatch is a web service that provides real-time monitoring to Amazon’s EC2 customers on their resource utilization such as CPU, hard disk and network. CloudWatch does not provide any memory, disk space, or load average metrics without running additional software on the instance. Amazon provides example scripts for Linux instances. The data is aggregated and provided through AWS management console. It can also be accessed through command line tools and Web APIs, if the customer desires to monitor their …

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