Category: Network security

Use the yum install command to install missing commands. Use # ifdown ens33 && ifup ens33 to restart a specific network card safely.

Create and manage ipset rules: set creation, save to file, and update iptables. Use ‘ipset del’ to delete rules and restart iptables for…

The iptables rules manage packet filtering within Linux’s netfilter, operating in kernel space. Custom chains enhance rule management, creating efficient, dynamic configurations.

The c3p0 database connection pool faced Connection leak issues due to connections prematurely closed by the database or firewalls, causing prolonged blocks.

Netfilter acts as a framework for packet filtering in the Linux kernel, requiring patches for layer 7 protocol filtering. Iptables implements rules; netfilter…

Spoofing IDS involves creating fake attack indicators using tools like Scapy to trigger false alerts, overwhelming the system’s ability to assess threats.

RKHunter is an open-source tool for Linux intrusion detection. Run checks with rkhunter check and update regularly. Install from the official site.

AIDE Linux simplifies file integrity checks by comparing system snapshots with a database, reporting changes, and supporting various algorithms and attributes.

The Information Security Classification Protection Management Measures outlines security classification for national systems, emphasizing self-protection. Security Classification divides systems into five levels based…

Intrusion detection enhances security by identifying network attacks, focusing on attack identification and response to protect systems from unauthorized access.