01Linux
Trippy on Ubuntu: interactive network diagnostics and readable reports
Use Trippy for interactive ICMP and TCP traces, interpret hop loss correctly, and export readable incident reports with practical Linux examples.
7 min read↗
AUTHOR ARCHIVE
Articles by daniel.
Practical knowledge, one discovery at a time.
171 ARTICLES
02Linux
Linux commands at work: a practical introduction
A terminal is a way to ask a Linux computer precise questions and give it repeatable instructions. You do not need to memorize hundreds of commands to start doing us
5 min read↗
03Linux
Linux commands, Part 1: directories and file operations
Build a clear mental model of paths, files and links, then use it to assemble a small release workspace without modifying an existing deployment.
5 min read↗
04Linux
Linux commands, Part 2: search and text processing
Find the relevant records in a log, compare configurations and build an incident summary that another engineer can reproduce.
5 min read↗
05Linux
Linux commands, Part 3: permissions and administrative rights
Understand who can access a file, why a command needs extra privileges, and how to prepare a private handover without giving a script unrestricted administrative pow
5 min read↗
06Linux
Linux commands, Part 4: system monitoring and process management
Gather useful evidence about CPU, memory, filesystems and processes before deciding whether a running workload needs intervention.
5 min read↗
07Linux
Linux commands, Part 5: networking and connectivity
Investigate a connection one layer at a time: local interfaces, routes, sockets, reachability, the application protocol and authenticated remote access.
5 min read↗
08Linux
Linux commands, Part 6: package management
Find out what software is installed, understand the difference between a query and a transaction, and prepare evidence for a controlled package change.
5 min read↗
C programming Language – Code snippets 8
Original C examples from the existing C programming archive. Source text is preserved; these historical examples have not been compiled or tested against a current t
11 min read↗
C programming Language – Code snippets 7
Original C examples from the existing C programming archive. Source text is preserved; these historical examples have not been compiled or tested against a current t
5 min read↗