A server’s hostname is its identity on the network. The fully qualified domain name (FQDN) combines the short hostname with the DNS domain, forming an address like web01.example.com. Many services depend on a correctly configured hostname and FQDN to function properly: email servers use the FQDN in SMTP HELO greetings (incorrect values cause delivery rejections), […]
Even with SSH key authentication enabled, a badly configured or temporarily accessible server with password auth still faces a constant barrage of brute-force login attempts. Fail2ban monitors log files for authentication failures, counts them per source IP, and when a configured threshold is crossed it issues a temporary ban by injecting a drop rule via […]
SSH key-based authentication is the gold standard for remote server access. Unlike passwords, SSH keys cannot be guessed by brute-force attacks. An Ed25519 private key is a 256-bit secret that would take longer than the age of the universe to crack by exhaustive search. When combined with a key passphrase, you have two-factor authentication: something […]
Red Hat Enterprise Linux 9 uses firewalld as its default firewall management daemon, backed by nftables as the kernel netfilter framework (replacing iptables which was the default in RHEL 7 and earlier). firewalld provides a zone-based model where each network interface is assigned to a trust zone — public, internal, dmz, trusted, and more — […]
User account management is one of the most fundamental administrative tasks on any Linux server. On Red Hat Enterprise Linux 9, every process, file, and network socket is owned by a user and group, making correct account hygiene essential for both security and auditability. Understanding the full lifecycle — creation, modification, and removal — and […]
Red Hat Enterprise Linux 9 (RHEL 9, codenamed “Plow”) is the most significant release of RHEL in years, built on Linux kernel 5.14, OpenSSL 3.0, and shipped with a hardened-by-default security posture including SELinux enforcing mode, nftables as the default firewall backend, and full support for the latest POWER, ARM, and x86_64 architectures. Whether you […]
It’s wild to think how far phones have come. Twenty years ago, polyphonic ringtones were a big deal — now artificial intelligence in mobile phones lets devices recognize faces, predict words, translate speech, and edit photos in seconds. AI has turned our pocket gadgets into personal assistants that learn, adapt, and think almost like humans.
Scalable web applications are the foundation of lasting digital success, yet many fail to reach their potential. In April 2025, there are over 1.5 billion web solutions in existence—but fewer than 200 million are active. The harsh reality: many web applications never reach full potential. A user forms an impression of a site in about 50 milliseconds, and 76 % of consumers abandon a web experience if they cannot quickly find what they want.
AI agents for real estate are transforming how property professionals manage listings, connect with clients, and close deals. Once limited to manual calls and static databases, today’s real estate operations are being reshaped by intelligent digital assistants capable of automating workflows, analyzing data, and delivering hyper-personalized experiences at scale.
Parameter-Efficient Fine-Tuning (PEFT) for large language models has become one of the most discussed topics in artificial intelligence. The rapid growth of AI has come with skyrocketing costs, and training large language models (LLMs) has become so expensive that only corporations with billion-dollar budgets can afford it. Research data shows that the development of ChatGPT-4 cost between forty-one million and seventy-eight million dollars, while Google’s Gemini 1 reached nearly two hundred million dollars.
Progressive Robot: Your Gateway to Comprehensive IT Solutions — Specializing in Web Development, Mobile App Development, and Expert IT Services.
© All Copyright by Progressiverobot.com
VAT Number ( 506152326 )
