linux has
networking and server config has :
- commands for process, network and service management
- cmd to configure various services/server like dns,webserver etc
- iptables firewall
- DNS concept and configration DNS configuration also has cmd regarding DNS
- apache web server configuration in debain
- DHCP configuration
- web server configuration in CentOS 7
- FTP server configuration
- squid proxy
Recon notes are made in obsidain