Freaks City

This walk-through demonstrates a small CLI utility that locates lines containing a user-supplied keyword in a text file. It automatically switches between two strategies: For files ≤ 1 MB the entire content is loaded into memory. For larger files it streams line-by-line to avoid high memory usage. The tool also understands --help and reoslves ...

Initial Environment Setup System Environment: CentOS 7.3 (Kernel 3.10.0-514.el7.x86_64) Hardware Requirements: Two server nodes Minimum two disks per node - one for OS, one for storage Nodes named: server01, server02 IP Configuration: 192.168.238.129 - server01 192.168.238.130 - server02 Disk Configuration After OS installation, format t ...

Linux Security Context and Permission ModelIn the Linux security framework, processes operate as agents for the user who initiated them. Consequently, these processes execute with the identity and privileges of that user. The system evaluates file access through a sequential matching model:The system checks if the process owner matches the file ...

In Linux, removing a symbolic link that points to a directory with rm -rf can produce unexpected results depending on whether a trailing / is appended to the path. Careless use of the slash may delete contents of the original directory. Create a test directory and a symlink: $ mkdir -p ~/workspace/project $ echo "some content" > ~/ ...