Author Archives: Ahmed Tawfik

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About Ahmed Tawfik

Cybersecurity Professional, Systems Engineer, OSS & Linux Geek

How to beautify XML text on command line in Ubuntu

Posted on November 19, 2018 by Ahmed Tawfik

sudo apt install libxml2-utils echo ‘your xml stuff here’ | xmllint –format – You will get a beautiful well-organized XML output. Sources: https://jahansyed.co.uk/2016/04/22/how-to-install-xmllint-in-ubuntu/ https://stackoverflow.com/questions/16090869/how-to-pretty-print-xml-from-the-command-line

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Cleanup Docker Trash

Posted on October 31, 2018 by Ahmed Tawfik

Over time, docker images and residual unneeded files pile up and take a lot of space. We need to cleanup the following: stopped containers networks not used by at least one container dangling images build cache To do that, just … Continue reading →

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Flush the DNS cache on Ubuntu 18.04

Posted on October 18, 2018 by Ahmed Tawfik

sudo systemd-resolve –flush-caches Source: https://askubuntu.com/questions/906476/how-can-i-flush-the-dns-on-ubuntu-17-04

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How to check packages support status for Ubuntu 18.04

Posted on October 18, 2018 by Ahmed Tawfik

To know which packages are supported and which are not, for how long and whether the community or canonical are the ones who support it, just run: ubuntu-support-status It will give you this sample output: Support status summary of ‘$HOSTNAME’: … Continue reading →

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Create SSH profiles for your frequent connections on Ubuntu 18.04 using ssh_config

Posted on October 17, 2018 by Ahmed Tawfik

This is very useful if you connect to tons of servers via ssh and you need to keep record of them as profiles. Edit/Create a file .ssh/config Add entries in this manner: Host blabla User blablabla # or domain\blablabla if … Continue reading →

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