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Optionsbleed (CVE-2017-9798) : Apache Web Server Memory Leak Bug

Possibly most of the users are already aware, yet we may have our readers who are yet not aware of Optionsbleed. Optionsbleed (CVE-2017-9798) is a minor bug of Apache Web Server which may reveal password like data. Users are advised to update to patch. The bug was identified by a freelance journalist H. Böck in 2014 but has only received importance these days and in a dedicated update it has been … [Read more...]

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Rage4 DNS Review : 2 Months Usage

From technical point Rage4 DNS is superior than Dyn DNS at same expenditure. Rage4 DNS is Perfect DNS For Low End Box. Here is Our Rage4 DNS review around how we felt. This review is not endorsed by Rage4 DNS but we are using the service at present. Rage4 has extremely competitive DNS load balancing service as pay-as-you-go pricing. At this moment, NSONE and Rage4 are DNS services which are worthy … [Read more...]

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Create Data Science Environment on Cloud Server With Docker

This guide is not directly related to typical Big Data tools like Hadoop. In this guide we will configuring Docker and Jupyter on a cloud server. Here are the steps, commands to create data science environment on cloud server with Docker for data analysis starting with a blank server with SSH. The users following this guide must have adequate knowledge so that they do not need to read guides like … [Read more...]

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How To Install TICK Stack on Ubuntu, CentOS For System Metrics Monitoring

TICK Stands For Telegraf, InfluxDB, Chronograf, Kapacitor. Telegraf is data collector, InfluxDB stores data, Chronograf is visualizer and Kapacitor is alerter. For moderate load, you'll need minimum GB RAM cloud server instance or better - a hexacore 32GB RAM dedicated server. You can use VPSDime's for cheap instance for testing for a month. For one time installation and deletion of instance, any … [Read more...]

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Install Open Source Status Page Cachet on Ubuntu 16.04

There is lot of buzz with Cachet. I wasted hours to install Cachet on new subdomain, install LAMP, configured HSTS, changed CAA Record and now I can give you warranty that it does not worth the effort to use this script in case you have psychological problem of getting perfect things. It is worser than a good WordPress plugin like WP Statistics at backend. However, as I installed, here is how to … [Read more...]

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How to Install Virtualmin/Webmin on Ubuntu 16.04

Many users want a free cPanel like web hosting control panel. Virtualmin is a Free Software. This is not exactly the software we will suggest to install for single IP cloud server instance just to ease server management with web UI. This is more practical for a dedicated server with multiple IP. Here is how to install Virtualmin/Webmin on Ubuntu 16.04. Difference between Virtualmin and Webmin is … [Read more...]

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Install Apache Drill on Ubuntu 16.04 LTS Single Cloud Server

Apache Drill is SQL Query Engine for Hadoop, NoSQL, Cloud Storage and file systems including HBase, MongoDB, MapR-DB, HDFS, MapR-FS, Amazon S3, Azure Blob Storage, Google Cloud Storage, Swift, NAS and local files. As example, we can join a collection in MongoDB with a directory of event logs in Hadoop. Apache Drill features JSON data model which enables queries on complex and nested data. Drill … [Read more...]

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Configure Fail2Ban With Mod Security And Other Filters

This guide better to said to be continuation of IPtables Basic 3 and installing Mod Security. In this guide we will discuss around how to configure Fail2Ban with Mod Security & some other filters on Apache server to protect from PHP and other exploits. We are taking it granted that, from new user you are now somewhat used with Fail2Ban.   Configure Fail2Ban With Mod Security … [Read more...]

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mysqlcheck : Check, Repair, Optimize MySQL Tables

Previously we talked about MyISAM and Innodb, that has importance in this context. mysqlcheck is a command line utility to check, repair, optimize MySQL Tables. mysqlcheck offers an efficient way to perform maintenance of the database tables. mysqlcheck checks, repairs, optimizes MySQL tables within the database. mysqlcheck intended to be used when the mysqld server is running. mysqlcheck executes … [Read more...]

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Setup SFTP Without Shell Access For WordPress, Cloud Server

Normally we have a common security setup for the servers which we described on our guide on basic server setup and ensuring security. Paid web hosting control panels like cPanel usually have either no shell but FTP or SFTP access or limited shell access. Often we need to host account on vps or cloud server where it is desired to have a setup sftp without shell access for WordPress Like cPanel. We … [Read more...]

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Cheap Cloud & Virtual Servers For Running Apache Big Data Tools

Wikipedia uses OVH. These days which were once known as "Low End Box" has been a cost effective but powerful platform to test, deploy things which can be done on servers. We have a list of Big Data tutorials and list of Apache Big Data tools. Here are some points for selecting correct servers for running Apache Big Data tools. As we clearly said before - there are some positive and negative points … [Read more...]