What is Puppet?
Puppet is an automation software for IT system administrators and consultants. It allows you to automate repetitive tasks such as the installation of applications and services, patch management, and deployments. Configuration for all resources are stored in so called “manifests”, that can be applied to multiple machines or just a single server. If you would like to know more information, The Puppet Labs site has a more complete description of what Puppet is and how it works.
Apache 2.x is a general-purpose webserver, designed to provide a balance of flexibility, portability, and performance. Although it has not been designed specifically to set benchmark records, Apache 2.x is capable of high performance in many real-world situations.
Compared to Apache 1.3, release 2.x contains many additional optimizations to increase throughput and scalability. Most of these improvements are enabled by default. However, there are compile-time and run-time configuration choices that can significantly affect performance. MPM tuning is one of the upgrades that has been made in apache 2.x.
Possible Errors
TF400324: Team Foundation services are not available from server <Server/CollectionName>.
Technical Information (for administrator): Page not found
or
TF400324: Team Foundation services are not available from server <Server/CollectionName>.
Technical Information (for administrator): Unable to connect to the remote server
This error occurs primarily due to corrupt Team Foundation Server cache. There are several reasons why the cache can go corrupt
rsync utility is used to synchronize the files and directories from one location to another in an effective way. Backup location could be on local server or on remote server.
Iptables :- At a first glance, IPTables rules might look cryptic. In this article, I’ve given 25 practical IPTables rules that you can copy/paste and use it for your needs. These examples will act as a basic templates for you to tweak these rules to suite your specific requirement.
An experienced Linux sysadmin knows the importance of running the routine maintenance jobs in the background automatically.
Linux Cron utility is an effective way to schedule a routine background job at a specific time and/or day on an on-going basis.
Linux Crontab Format
MIN HOUR DOM MON DOW CMD
Elasticsearch is flexible and powerful open source, distributed real-time search and analytics engine. Using a simple set of APIs, it provides the ability for full-text search. Elastic search is freely available under the Apache 2 license, which provides most flexibility.
This article will help you to install Elasticsearch on CentOS, RHEL, Ubuntu and Debian Systems.
Redis is an open source, BSD licensed, advanced key-value store. It is often referred to as a data structure server since keys can contain strings, hashes, lists, sets and sorted sets.
How To Install Redis on Centos 7
# wget -r –no-parent -A ‘epel-release-*.rpm’ http://dl.fedoraproject.org/pub/epel/7/x86_64/e/
# rpm -Uvh dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-*.rpm
Android apps install to the internal storage by default, but you can also set the SD card as your default install location. This trick allows you to move almost any app to the SD card – no root access required.
There are several benefits to enable Gzip compression because it’s the most popular method to load your site faster by reducing more than 70% page size of your blog. However, now-a-days most of the sites are using Gzip compression across the web. Gzip will load your site in just a few seconds.
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