Tag: #보안
Writing on GPUs, LLMs, MLOps, Kubernetes — and mindset · 4 posts
The complete guide to SSH operations: from key management to hardening a server without locking yourself out
sshdconfig hardening, choosing and distributing key types, ProxyJump and port forwarding, and the layered order to debug a connection that will not come up, organised from an operator viewpoint. Includes the procedure th
2026-08-15 · 17 min read #리눅스#ssh#보안#운영#서버관리A complete guide to Linux firewalls and access control: handling nftables, firewalld, and ufw without locking yourself out
Starts from the structure of nftables and lays out what firewalld and ufw do on top of it. Covers the procedure that keeps you from locking yourself out while changing rules remotely, and the diagnostic order for when ru
2026-08-15 · 18 min read #리눅스#방화벽#nftables#firewalld#보안The Complete Guide to TLS Certificates: Handling Them End to End with openssl
A purpose-by-purpose reference of the openssl commands for reading certificates, creating CSRs, verifying chains, converting formats, and diagnosing server connections. Also covers how to identify expiry, a missing chain
2026-08-15 · 18 min read #리눅스#tls#인증서#openssl#보안The Complete Guide to Authentication and Authorization: Ten Misconceptions, Corrected From the Specs
OAuth 2.0 is an authorization framework; OIDC is the authentication layer on top of it. This guide corrects the flows that fell out of the recommendations, the illusion of JWT validation, and the real trade-offs of token
2026-08-15 · 25 min read #인증#인가#oauth#oidc#jwt