Elasticsearch Cluster setup Installing and configuring Elasticsearch cluster for production purpose. Elastic search is one of the popular full-text search engine, used for real time distributed search and analysis of data. In my previous post, we have seen “How to install and configure Elasticsearch in single node” . Single node will be used for development…
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Elasticsearch Elasticsearch is distributed search engine, provides REST API and schema-free JSON documents. Installing and configuring Elasticsearch is a easy method. Let’s jump into Installation of Elasticsearch. Download elasticsearch from the official site. I am gonna use TAR file in this tutorial, and version I followed here is Use the below command to download TAR…
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Enabling ODBC Trace logs Lets see how to enable Trace logs for Unix ODBC driver. Unix ODBC is Open Database connectivity, a Driver Manager. Using Unix Driver manager you can connect the Database Application to the ODBC Database Driver. In some cases you want to capture the of ODBC driver. It is not recommended to…
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SSH Banner When we login to remote Linux machine, In Some machines we may see SSH banner messages printed, while we enter our username or after login. Here we are going to see both methods, but these messages are going to be static messages only. We will talk about dynamic messages in my next post.…
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In this article we will look into HBase Authorization, different access levels and its scopes. Here are the list of Access levels. For granting the permission for users and groups are defined here. You can grant permission on global, table, namespace column family or cell level. When you give permission on the group level, keep…
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Let’s look in to neo4j – graph databases download, configure and start in Linux environment. Along with this we will make neo4j as a service using default daemon initialization script. you can download neo4j from here : neo4j official or you can choose different versions here : ne04j other releases But here am gonna use…
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In this post, am gonna explain two methods of resetting neo4j graph databases password. Method 1 involves, normal, traditional way of changing password and Method 2 is used, where the user forgot the password and there is no other way of changing the password, for this you might seek help from system admin. Method 1:…
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SSH file conversion details are described here. Convert you SSH file to file. For this you need to have the application installed in your machine. Download putty here. If the above link doesn’t work use this link. click Download putty, on the landing page, you download and install the or all binary packages in zip…
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Hadoop key is used to encrypt and decrypt the data stored in HDFS directories, Here am going to describe how to create, delete, undelete and purge(permanently delete) the hadoop key. So first let’s create a key. For creating key you need to be a super user of hadoop. Throughout this post, you are going…
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Here I have described steps to install in RedHat machine. Download teradata ODBC driver here or direct link here For downloading ODBC Driver, you need to have an account. Once you download the tar file unzip it and you will see the dependencies, see the below Fig 1. Untar the dependencies as well. …
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