/Tag: linux
27 03, 2018

SSL Certs Generator (CLI)

By |2018-04-28T21:26:24+00:00March 27th, 2018|Linux, Scripts, Security, Tools|0 Comments

SSL Certs Generator ( is the bash script which can help you in generating and getting signed SSL certificates for a Linux machine. To use the script you have to have Microsoft Certificate Authority (MS CA) on your network. The script also copies all the generated certificates to the appropriate directories in your system. Supports Subject Alternative Names (x509 SAN) and IPv6.

28 01, 2018

Deploying a Spacewalk Proxy

By |2018-12-30T15:34:37+00:00January 28th, 2018|How To, Linux, Management, Monitoring, Scripts, Security|0 Comments

This article is about how to deploy a Spacewalk Proxy v2.7 from scratch. A Spacewalk proxy acts as an intermediary between Spacewalk clients and a Spacewalk server. The main purposes of a Spacewalk proxy are to mitigate the loading on the Spacewalk server and to reduce the download times for Spacewalk clients. Typically, it does make sense to roll out Spacewalk proxies on geographically remote sites. This article is based on Deploying a Spacewalk Server and is the continuation of it.

9 12, 2017

Deploying a Spacewalk Server

By |2018-04-28T21:42:42+00:00December 9th, 2017|How To, Linux, Management, Monitoring, Scripts, Security|0 Comments

This article is about how to deploy a Spacewalk Server v2.7 from scratch. If you work at an enterprise-level company where IT infrastructure contains a lot of Linux machines, you definitely encounter with the questions: how to manage all Linux systems centrally, be aware of the current state of the entire infrastructure, provide the high level of security, and reduce maintenance efforts. The most common day-to-day tasks in server maintenance are software updates and the flexible management of a unified configuration.

29 11, 2017

Unattended Linux Installation

By |2018-04-28T21:45:05+00:00November 29th, 2017|Configs, How To, Linux|0 Comments

Here you can find the set of preseed/kickstart configuration files for most common operating systems. These files are used for an unattended installation and make provisioning new servers much easier. Presented configs are suitable for Debian 8/9, Ubuntu 14/16, RHEL/CentOS/Oracle Linux 6/7, and SLES (SUSE) 12. Probably, they can also work with other derivatives of the mentioned Linux distributions.

25 09, 2017

Atlassian Products Checker

By |2018-04-28T21:47:24+00:00September 25th, 2017|Confluence, JIRA, Linux, Scripts|0 Comments

Atlassian Products Checker (tbox-atlassian.php) allows you to check for the latest available versions of Atlassian products and show your currently installed ones. The script is written in PHP and utilizes the curl_multi module to simultaneously poll multiple sites.

17 09, 2017

JIRA Boards Extractor

By |2018-04-28T21:49:28+00:00September 17th, 2017|Linux, Scripts|0 Comments

JIRA Boards Extractor ( is the perl script which extracts data from the MySQL database of your Atlassian JIRA instance to help you identify redundant and unused JIRA boards (kanban and scrum), quick filters on each board, and associated JQL filters. The script generates a formatted Microsoft Excel file with four tabs: all_boards, scrum_boards (boards with sprints), quick_filters (per each board), and prj_filters. You can find all associated MySQL queries with tabs in the script code and adjust them in accordance with your needs.

11 09, 2017

System Monitor

By |2018-07-28T14:17:36+00:00September 11th, 2017|Linux, Scripts, Tools|0 Comments

System Monitor ( is the bash script which shows the real-time usage of CPUs, NICs, RAM (conventional memory, HugePages, and swap). The main distinction of this script from many other utilities is that it also shows HugePages utilization. Read the HugePages Configurator post for more information.

27 08, 2017

HugePages Configurator

By |2019-01-20T19:18:18+00:00August 27th, 2017|Linux, Scripts|0 Comments

HugePages Configurator ( is the bash script which allows you to easily configure HugePages and show real-time values as well as settings in a config file. HugePages is a feature integrated into the Linux kernel 2.6. Enabling HugePages makes it possible for the operating system to support memory pages greater than the default (usually 4KB). Using very large page sizes can improve system performance by reducing the amount of system resources required to access page table entries. HugePages is useful for both 32-bit and 64-bit configurations. HugePage sizes vary from 2MB to 256MB, depending on the kernel version and the hardware architecture.