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Tag: centos

How To List All Installed Packages In Linux

November 1, 2017November 1, 2017 Alistair Ross
Image of a terminal prompt

Quick howto: List all installed packages in Linux In today’s quick ‘just the examples’ howto, we show you how to find out what packages are installed on your Linux system with one simple command. Depending […]

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Leave a commentJust the examples, SysAdminapt, apt-get, arch, centos, Debian, dnf, dpkg, fedora, opensuse, package, pacman, redhat, rpm, SuSE, ubuntu, yum, zypper

Hello nftables, Goodbye iptables

May 20, 2017May 20, 2017 Alistair Ross
netfilter

Firewalling under Linux gets revamped. Yep, you read it right. The firewalling tool that has been either hated or loved, ever since Kernel 2.4 is being phased out from kernel v4.9 onwards in favour of […]

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1 CommentCommentarycentos, Debian, iptables, kernel, linux, netfilter, nft, nftables, Red Hat, rhel, stable, stretch, ubuntu

How to reset a forgotten root password RHEL / CentOS 7

April 20, 2017August 29, 2017 Alistair Ross
netfilter

Ever wondered how to reset your root password on a system if you are completely forgotten it? Up until recently, you could simply change the GRUB kernel options to boot into single user mode, or […]

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Leave a commentQuick Tips, SysAdmincentos, fedora, forgotten, lost, password, redhat, reset, root

View your log files in colour and in an easy to read format

January 7, 2016October 7, 2017 Alistair Ross
lnav

This is a wonderful tutorial from the guys over at lintut.com to show how to navigate your way through log files easily. Log files are notoriously difficult to read because it’s difficult in the sea […]

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Leave a commentQuick Tips, SysAdmincentos, color, colour, lintut, lnav, log, logs, navigator, ubuntu

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