Tag: centos
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Set up automation with Ansible
ReadAnsible is very flexible automation tools with many benefits. The free version is command-line based and here is an example to set it up. Environment…
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Package Repository Management for Linux
ReadRPM is the package manager tool in Linux. YUM is a repository management tool to fetch appropriate package for the particular version of Linux. YUM…
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Redhat Firewall configuration: from iptables to firewalld
ReadTools to manage firewall Packet filter rules in Linux Kernel is managed by an user-space application named iptables in CentOS and RedHat. Since CentOS 7,…
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Linux Admin Basics 3 of 3 – text processing, regex, sed & awk
ReadMost of the text processing can be processed by awk and sed. Sed is non-interactive stream editor that allows you to specify all editing instructions…
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cron and anacron in RedHat Linux (How logrotate works)
ReadCron and anacron We all know cron is a job scheduler. Many admin uses crontab to manage scheduled task. It is also important to know…
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Basics Terms in Linux OS
ReadThese are the things quite confusing or abstract while I was at school but now makes lots of sense after many years working with different…