Propojuji IT s byznysem #

Pomáhám CTO, CEO a produktovým manažerům porozumět technologickým rozhodnutím — ne jako technický detail, ale jako strategická páka, která rozhoduje o rychlosti, nákladech a konkurenceschopnosti firmy.

Mám přes dvacet let zkušeností v IT, z toho velkou část v roli, kde jsem stál na hranici mezi technickým týmem a byznysem. Vím, jak fungují inženýři. Vím, co potřebují slyšet manažeři. A umím přeložit mezi těmito dvěma světy.

Favorite YouTube Channels #

Here are some of my favorite YouTube channels:

Channels #

Technology Connections #

Popular YouTube channel that explains in a fun and understandable way how common technologies around us work. Creator Alec Watson focuses on the history, design, and principles of devices such as televisions, dishwashers, thermostats, or coffee makers. Thanks to his attention to detail and subtle humor, he can turn even seemingly ordinary topics into captivating stories. The channel is popular not only with technology fans but also with anyone who wants to better understand the world around them.

Test TCP connection on Windows #

PS> Test-NetConnection google.com -port 80

ComputerName     : google.com
RemoteAddress    : 142.251.37.110
RemotePort       : 80
InterfaceAlias   : vEthernet (external)
SourceAddress    : 192.168.x.x
TcpTestSucceeded : True

Test TCP connection on Linux #

$ nc -zv google.com 80
Connection to google.com (142.251.37.110) 80 port [tcp/http] succeeded!

Generate TLS or CA certificates #

XCA Homepage

Presentations #

ArgoCD #

Interesting articles #

Kubernetes #

Primer on Linux Container Filesystems by Michal Pitr is an educational article that explores how Linux containers, such as those managed by Docker, create and manage their own isolated filesystems using OverlayFS

Understanding etcd in Kubernetes from Learnk8s offers a practical guide to etcd, the distributed key-value store that serves as the backing store for all cluster data in Kubernetes. The article explains how etcd works, its role in Kubernetes architecture, and best practices for maintaining a reliable and secure etcd cluster.

Favorite Books #

Here are some of my favorite Books:

Books #

The Linux Programming Interface #

Michael Kerrisk’s The Linux Programming Interface is a definitive guide to Linux and UNIX system programming. Covering over 500 system calls and library functions with clear C examples, it provides a thorough exploration of topics like file I/O, process management, multithreading, interprocess communication, and network programming. The book balances Linux-specific features (e.g., epoll, inotify) with POSIX standards, making it valuable for both Linux and UNIX developers.