Richard Killeen, Author at RichardKilleen https://richardkilleen.co.uk/blog/author/killeer1973/ Fun in Networking Sun, 04 Jan 2026 16:48:45 +0000 en-GB hourly 1 https://wordpress.org/?v=6.9 https://richardkilleen.co.uk/wp-content/uploads/2025/04/cropped-Site-icon-32x32.png Richard Killeen, Author at RichardKilleen https://richardkilleen.co.uk/blog/author/killeer1973/ 32 32 Linux for Network Engineers Lesson 3: Basic Linux Commands https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-3-basic-linux-commands/ https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-3-basic-linux-commands/#respond Sun, 04 Jan 2026 16:48:41 +0000 https://richardkilleen.co.uk/?p=1922 main blog image for basic linux commands post showing myself, the linux logo and some started commands in a terminal windowGetting Around Your System Right so we’ve got Linux installed haven’t we. Your VM or WSL is running, you can log in, and you’re staring at the desktop or cli for WSL 1 and thinking “now what then?” – well Basic Linux Commands is where we need to start. Blog 2: Installing Linux VM When… Read More »Linux for Network Engineers Lesson 3: Basic Linux Commands

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]]> https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-3-basic-linux-commands/feed/ 0 Linux for Network Engineers Lesson 2: Installing Linux VM https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-2-installing-linux-vm/ https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-2-installing-linux-vm/#comments Tue, 30 Dec 2025 11:40:39 +0000 https://richardkilleen.co.uk/?p=1895 main blog image for the Installing Linux VM post showing myself, the linux logo and blog title and a loading progress barInstalling Linux VM – Actually Getting Started Right so we’re at lesson two now. Last lesson we talked about why Linux matters, now we need to actually get you a Linux system to work with by Installing Linux VM on your host. Linux for Network Engineers – Lesson 1: Getting Started This is where most… Read More »Linux for Network Engineers Lesson 2: Installing Linux VM

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]]> https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-2-installing-linux-vm/feed/ 1 Linux for Network Engineers – Lesson 1: Getting Started https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-1-getting-started/ https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-1-getting-started/#comments Sun, 21 Dec 2025 00:03:51 +0000 https://richardkilleen.co.uk/?p=1879 Linux for Network Engineers main post image showing the linux logo and a laptop with 3 network devices that run linux under the hoodWhy Linux for Network Engineers Matters Okay so we’re starting the Linux for network engineers course now. So you might be sitting there thinking, right I’m a network engineer yeah, I work with routers and switches and firewalls, why on earth do I need to learn Linux? Learn Python for Network Engineers That’s a completely… Read More »Linux for Network Engineers – Lesson 1: Getting Started

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]]> https://richardkilleen.co.uk/blog/linux/linux-for-network-engineers-lesson-1-getting-started/feed/ 1 CCNA Packet Tracer Lab 01 – Basic Device Configuration https://richardkilleen.co.uk/blog/certifications/ccna-packet-tracer-lab-01-basic-device-configuration/ https://richardkilleen.co.uk/blog/certifications/ccna-packet-tracer-lab-01-basic-device-configuration/#respond Sat, 20 Dec 2025 00:27:23 +0000 https://richardkilleen.co.uk/?p=1860 image show the thumbname form my course Packet Tracer Lab 01 - Basic Device Configuration and CLI NavigationDevice Configuration With Packet Tracer Right, so this is the first lab in the CCNA Packet Tracer series and we’re kicking things off with the absolute basics. Hostnames, passwords, getting interfaces up – the stuff you need sorted before anything else makes sense. Now look, I know what you’re thinking. Basic device configuration? Bit boring… Read More »CCNA Packet Tracer Lab 01 – Basic Device Configuration

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]]> https://richardkilleen.co.uk/blog/certifications/ccna-packet-tracer-lab-01-basic-device-configuration/feed/ 0 Python for Network Engineers blog 18: Python if statements https://richardkilleen.co.uk/blog/python/python-if-statements/ https://richardkilleen.co.uk/blog/python/python-if-statements/#respond Tue, 07 Oct 2025 10:33:09 +0000 https://richardkilleen.co.uk/?p=1833 Main blog image for Python for Network Engineers Blog 18 Python if statements showing a Python if statement code example and a network diagram with router, switch, host, and admin laptopPython If Statements, Making Decisions That Actually Matter Right, so you’ve got variables, data types, and operators working, haven’t you? Been through all the fundamentals in the first seventeen posts and mabye even the PCEP Supplement blogs. Now we’re getting to the good stuff – making your scripts actually think and make decisions based on… Read More »Python for Network Engineers blog 18: Python if statements

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]]> https://richardkilleen.co.uk/blog/python/python-if-statements/feed/ 0 Python for Network Engineers Blog 17: Python Bitwise Operators https://richardkilleen.co.uk/blog/python/python-bitwise-operators/ https://richardkilleen.co.uk/blog/python/python-bitwise-operators/#comments Mon, 15 Sep 2025 13:19:19 +0000 https://richardkilleen.co.uk/?p=1642 main blog image for Python for Network Engineers Blog 17 Python Bitwise OperatorsStop Learning Binary with Silly Calculator Examples Right, so you’ve got arithmetic operators working and you understand how Python handles basic maths operations. Now we’re moving into python bitwise operators territory, which is where networking gets really interesting. Python for Network Engineers Blog 16: Logical Operators Now here’s where most Python courses completely lose the… Read More »Python for Network Engineers Blog 17: Python Bitwise Operators

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]]> https://richardkilleen.co.uk/blog/python/python-bitwise-operators/feed/ 1 Python for Network Engineers Blog 16: Logical Operators https://richardkilleen.co.uk/blog/python/python-logical-operators/ https://richardkilleen.co.uk/blog/python/python-logical-operators/#comments Mon, 15 Sep 2025 09:58:18 +0000 https://richardkilleen.co.uk/?p=1640 python Logical Operators main blog image showing the python logo and the name of the postPython Logical Operators – Stop Checking Voting Eligibility Right, so you’ve got comparison operators working and decision-making logic sorted haven’t you. Greater than, less than, equality checks, that whole bit. Now we’re getting to something that catches loads of people out when they start building complex network monitoring logic – python logical operators. Python for… Read More »Python for Network Engineers Blog 16: Logical Operators

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]]> https://richardkilleen.co.uk/blog/python/python-logical-operators/feed/ 1 Python for Network Engineers Blog 15: Python Comparison Operators https://richardkilleen.co.uk/blog/python/python-comparison-operators/ https://richardkilleen.co.uk/blog/python/python-comparison-operators/#comments Thu, 11 Sep 2025 23:00:44 +0000 https://richardkilleen.co.uk/?p=1637 Main blog header image for Python for Network Engineers Blog 15: Python Comparison Operators, featuring Python logo and comparison operators in a clean, wide, uncropped layoutStop Comparing Age and Height Right, so you’ve got arithmetic operators working and maths calculations sorted haven’t you. Addition, subtraction, multiplication, division, that whole bit. Now we’re getting to something that catches loads of people out when they start making decisions in their network scripts – python comparison operators. Python for Network Engineers Blog 14:… Read More »Python for Network Engineers Blog 15: Python Comparison Operators

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]]> https://richardkilleen.co.uk/blog/python/python-comparison-operators/feed/ 1 Python for Network Engineers Blog 14: Arithmetic Operators https://richardkilleen.co.uk/blog/python/learn-python-arithmetic-operators/ https://richardkilleen.co.uk/blog/python/learn-python-arithmetic-operators/#comments Thu, 11 Sep 2025 13:55:04 +0000 https://richardkilleen.co.uk/?p=1635 Main blog image showing a network diagram with routers and switches, annotated with Python arithmetic operators code snippets calculating network metrics such as bandwidth, throughput, and interface errorsPython Arithmetic Operators – Stop Calculating Pizza Slices Right, so you’ve got scientific notation working and data types sorted haven’t you. Numbers, strings, converting between them, that whole bit. Now we’re getting to something that catches loads of people out when they start doing actual calculations with network data – python arithmetic operators. Python for… Read More »Python for Network Engineers Blog 14: Arithmetic Operators

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]]> https://richardkilleen.co.uk/blog/python/learn-python-arithmetic-operators/feed/ 1 Python for Network Engineers Blog 13: Scientific Notation https://richardkilleen.co.uk/blog/python/python-scientific-notation/ https://richardkilleen.co.uk/blog/python/python-scientific-notation/#comments Wed, 10 Sep 2025 12:48:17 +0000 https://richardkilleen.co.uk/?p=1633 main blog post image for the python Scientific Notation post showing different bandwidths in notationPython Scientific Notation – Stop Calculating Planetary Distances Right, so you’ve got variables and basic data types working haven’t you. Numbers, strings, booleans, that whole bit. Now we’re getting to something that catches loads of people out when they start working with real network data – python scientific notation. Python for Network Engineers Blog 12:… Read More »Python for Network Engineers Blog 13: Scientific Notation

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