wp.jochen.hayek.name/blog-en

Category: Linux networking

  • how to test ports – Telnet, Expect, Bash, Netcat, Nmap

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    johayek
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    For “security reasons” telnet and nmap are not included in the basic set of utilities present on a production server. And why would you install software, that you usually don’t need there? But occasionally these tools are needed and should be available for installation. I certainly like telnet and nmap for the described purposes.

  • how to check (scan) for open ports from outside in Linux

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    johayek
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    https://linuxize.com/post/check-open-ports-linux/

  • Linux and WPA-Enterprise AKA WPA-802.1X

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    johayek
    in

    https://en.wikipedia.org/wiki/Wi-Fi_Protected_Access#WPA_terminology : WPA-Enterprise !!! (WPA-Enterprise mode is available on all three WPA versions, i.e. WPA, WPA2, WPA3) https://en.wikipedia.org/wiki/IEEE_802.1X https://en.wikipedia.org/wiki/IEEE_802.1X#Linux https://raspberrypi.stackexchange.com/questions/22875/connecting-to-wpa2-enterprise-wifi-network https://www.raspberrypi.org/forums/viewtopic.php?t=247310 https://iceburn.medium.com/raspberry-pi-connected-to-wifi-of-wpa2-enterprise-ddd5a40c0b07 https://www.raspberrypi.org/forums/viewtopic.php?p=353961 https://www.securew2.com/solutions/wpa2-enterprise-certificates-raspberry-pi

  • Packt Publishing: Mastering Linux Network Administration

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    by

    johayek
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    https://learning.oreilly.com/library/view/mastering-linux-network/9781784399597/

  • deprecated Linux networking commands and their replacements – net-tools vs iproute2

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    johayek
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    https://learning.oreilly.com/library/view/mastering-linux-network/9781784399597/ – Mastering Linux Network Administration (PacktPub) !!!!! https://learning.oreilly.com/library/view/mastering-linux-network/9781784399597/ch02s04.html !!!!! https://learning.oreilly.com/library/view/linux-networking-cookbook/9780596102487/ – O’Reilly https://learning.oreilly.com/library/view/linux-network-administrators/0596005482/ – O’Reilly https://dougvitale.wordpress.com/2011/12/21/deprecated-linux-networking-commands-and-their-replacements/ – great article showing how to do modern Linux networking on the command line https://en.wikipedia.org/wiki/iproute2 – includes a rather compact but useful (mapping) table https://wiki.linuxfoundation.org/networking/iproute2 https://wiki.linuxfoundation.org/networking/iproute2_examples https://lartc.org/howto/ http://www.policyrouting.org/iproute2.doc.html https://www.lisenet.com/2013/finding-open-ports-and-listening-services-on-linux/ https://www.lisenet.com/tag/netstat/ https://linuxize.com/post/check-listening-ports-linux/ – how to check for listening ports…