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Docker is an open platform for Sys Admins and developers to build, ship and run distributed applications. Applications are easy and quickly assembled from reusable and portable components, eliminating the silo-ed approach between development, QA, and production environments. Individual components can be microservices coordinated by a program that contains the business process logic (an evolution […] wget http://www.rabbitmq.com/releases/rabbitmq-server/current/rabbitmq-server-3.5.7-1.noarch.rpm rpm –import http://www.rabbitmq.com/rabbitmq-signing-key-public.asc yum install rabbitmq-server-3.5.7-1.noarch.rpm chkconfig rabbitmq-server on /sbin/service rabbitmq-server start /sbin/service rabbitmq-server status rabbitmq-plugins enable rabbitmq_management rabbitmqctl add_user test test rabbitmqctl add_user guest test123 rabbitmqctl set_user_tags test administrator rabbitmqctl set_permissions -p / test “.*” “.*” “.*” RHCE7 certification study notes — system file directory structure , RHEL7 system file directory Basically RHEL7 directory structure remains the same as the original directory structure RHEL6, the difference is, RHEL7 increasing the Run directory, the default file is used to automatically mount CD-ROM, and CD-ROM in RHEL6 default mount directory is the Media. choose […] Docker is an open platform for Sys Admins and developers to build, ship and run distributed applications. Applications are easy and quickly assembled from reusable and portable components, eliminating the silo-ed approach between development, QA, and production environments. Individual components can be microservices coordinated by a program that contains the business process logic (an evolution […] Sometime you like to list manually installed packages just type : yum list installed | grep -v ‘anaconda\|updates’ and you will get a list of manually installed packages RHEL 7 / CentOS 7. This post is to Secure Single User Mode / Rescue Mode / Emergency mode on RHEL 7 / CentOS 7 in Grub2, By performing this Article you will able to secure your Grub2 Edits with Username and Password, It is always a good idea to protect your Grub2. In This […] if you have not created a s3 bucket kindly go through with EC2 documentation.The documentation is very clear and easy to understand .This is the link how to create S3bucket After creating a new bucket follow the given below steps. Step 1: Download the latest s3fs package from S3fs link http://s3fs.googlecode.com/files/s3fs-1.63.tar.gz Step 2: Untar the […] Expertise level: Advanced Hackers can use temporary storage directories such as /tmp to store and execute unwanted programs and hack into a server. Other temporary storage directories that can be used for malicious activities are /var/tmp and /dev/shm. Follow these steps to secure your Linux server against this vulnerability: Add nodev, nosuid, and noexec options […] Remove Old Kernels on RHEL, CentOS, Fedora This is quick guide howto delete/remove/clean old kernels on Fedora, CentOS, Red Hat (RHEL). I use here two kernel as example, if you want to keep other more or less, then adjust amount of installed kernels as you wish. Normally reason why you maybe want remove kernels is […] ifconfig: command not found – CentOS 7 minimal
-bash: ifconfig: command not found ifconfig is not longer bundled in the minimal image of CentOS 7. You could just use the alternative ip addr which will give you the same info ifconfig gives, but if you’re set in your ways like I am, you will […] |
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