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Author - Saša Teković

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Puppet – nearly a decade long friendship

Puppet is an open-core configuration management tool that significantly simplifies infrastructure management, especially when sysadmins have to deal with a large number of servers. Essentially, with its declarative language, Puppet allows sysadmins to describe the desired system state in high-level terms - e.g. users, installed packages, enabled services, configuration files, etc. Puppet then compares desired with...

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HAProxy – sysadmin’s swiss army knife

HAProxy is a free, open-source, high-performance TCP/HTTP load balancer. HAProxy has been around since 2001, it's written in C programming language, and it uses an insignificant amount of memory and CPU resources, even with very advanced manipulations on HTTP traffic. It's also very secure, having only fifteen security issues during the last seven years. Four...

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Monitoring PHP applications

When considering web applications monitoring, it’s essential to monitor not only the application itself but the services on which the application depends, as well as the infrastructure hosting the application. Detecting performance bottlenecks and debugging problems can otherwise be very tricky, and unexpected downtime may occur.Infrastructure monitoring Our advanced monitoring system is partially based on...

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Preventing downtime

Downtime is used to refer to periods when a system is unavailable and fails to provide or perform its primary function. As discussed in our previous blog article, downtime is not only bad for productivity, but it also causes many other related issues, such as downgraded brand image, financial losses, data loss and much...