Migrate Linux VMs from XEN (SolusVM) to KVM (Proxmox)

Migrating CentOS Linux installed Xen instance to KVM is really tricky. This note contains one of the way to migrate. Here I have used SolusVM for Xen based instances and Proxmox for KVM based instances. PS: This will work with Linux Only. For eg. I have used CentOS6 linux Click below link: https://www.evernote.com/shard/s45/sh/210158fb-5570-419d-b2f3-95aff9f0ade6/859044161126bab200636e1ab742c552

Setting up Self Healing Tomcat

This note contains step to configure Self Healing environment for Tomcat. We will configure Daemontools to monitor Tomcat service and if tomcat crashes, DT will start it automatically. Daemontool will make sure that tomcat service is running. OS -> CentOS-7 64bit Tomcat Version -> 8 https://www.evernote.com/shard/s45/sh/f38c0731-2d35-45cc-aab8-4b3b5cad2904/9014f20986edf4e54bef0cc02a3e7c41

MySQL incremental backup on S3 Storage bucket

Steps to take incremental backup of MySQL database and upload it on S3 bucket: Check this link: https://www.evernote.com/shard/s45/sh/f90e1ba4-aa09-49ea-96ec-9c89eb61ac1a/54c5d44c23efcd6f7b590994b9939a2e

Basic steps to Secure Tomcat 8

Please Click Here or below link for Basic steps to Secure Tomcat 8 https://www.evernote.com/shard/s45/sh/08ef8a36-5d2c-4a14-9c84-4619b11cd9fc/734db1ec544556b5e44261a424d74c4b

Troubleshoot Yum Python grabber.py error in CentOS7

To troubleshoot Yum Python grabber.py error in CentOS7:   In CentOS 7.0, you will get errors for grabber.py while running “yum update” command. Please follow the following steps to resolve this issue till next update. 1. Open /usr/lib/python2.7/site-packages/urlgrabber/grabber.py in preferable editor vi /usr/lib/python2.7/site-packages/urlgrabber/grabber.py 2. Go to line number 1510. Below command is for VI editor… Read More »