Category Archives: Linux

25 November, 2019

Fortinet FIT / Tinycore Linux Static IP addressing

Set a persistent static IP on Fortinet FIT OVA running Tinycore Linux. Create boot scripts to survive reboots and configure network settings.

2 October, 2019

Upgrading Ubuntu 18.0.4 LTS to 19.0.4

Upgrade Ubuntu 18.04 to 19.04 by modifying the release upgrader config. Follow these CLI steps to bypass LTS restrictions and complete the OS update.

19 September, 2019

Installing Tor on Ubuntu 19.04 and Windows 10

Install Tor on Ubuntu 19.04 and Windows 10 using apt-get and the official installer. Get step-by-step commands to launch the Tor Browser and verify...

11 August, 2019

Installing FortiClient on Ubuntu Linux for SSL VPN

Install FortiClient on Ubuntu Linux for SSL VPN access. Follow these steps to extract, configure, and connect to your FortiGate securely.

24 April, 2019

Installing Greenbone Vulnerability Manager

Install Greenbone Vulnerability Scanner on CentOS 7. Follow this step-by-step guide to deploy the scanner, configure the firewall, and access the web GUI.

20 April, 2019

iperf for Network Geeks

Run iperf3 network throughput testing to validate WAN and LAN performance. Learn server and client mode configs, port differences, and troubleshooting tips.

7 April, 2019

Using NMAP

Master Nmap scan commands for target selection, port specification, and scan types. Learn to detect OS services and save results to files for efficient...

5 March, 2019

IPTable Firewall GUI

Install the Webmin IPTables GUI on CentOS to manage Linux firewalls. Learn to disable firewalld, configure rules, and set up backups with this practical...

3 December, 2018

Merging PCAP files from the CLI

Learn how to merge PCAP files from the CLI using the mergecap command. Combine multiple captures into one file for easier analysis on Linux...

6 October, 2018

‘Diff’ Ways of Comparing Files

Compare files with diff, Beyond Compare, or online tools. Learn to read diff output and choose the right file comparison method for your security...

2 October, 2018

macOS Mojave and Home Brew

Install Homebrew on macOS Mojave when MacPorts fails. Get the exact command to deploy the package manager and install tools like wget and sipcalc.

2 April, 2018

Command Line Password Generator

Generate passwords with pwgen on macOS and Linux. Learn to install the tool via Homebrew and use command line flags for secure, complex password...

7 December, 2017

Syslog Server running ‘rsyslog’

Learn how to configure rsyslog server on CentOS 7. Enable UDP support and create custom templates to collect logs from network devices like FortiGate.

14 November, 2017

VI Cheat Sheet

Master the vi editor with this practical vi cheat sheet. Learn essential commands for scrolling, searching, deleting, and copying text in Linux CLI environments.