Search Results for "blocks"

Clonezilla is a partition and disk imaging/cloning program similar to True Image®. It saves and restores only used blocks in hard drive. Two types of Clonezilla are available, Clonezilla live and Clonezilla SE (Server Edition).

btrbk is a snapshotting and backup tool tailored for Btrfs that automates consistent, incremental backups using btrfs send/receive. It creates atomic snapshots of subvolumes, then efficiently transfers only changed blocks to local or remote targets over SSH. A declarative configuration describes sources, targets, and retention policies (hourly/daily/weekly/monthly), and btrbk enforces pruning so backup stores don’t grow without bound. The tool supports hierarchical setups—many subvolumes to many destinations—and can throttle, pre/post-hook, and verify operations for reliability. ...

The OWASP ModSecurity Core Rule Set (CRS) is a curated, generic Web Application Firewall rule set that detects and blocks common attack categories across most web apps. It focuses on broad protection—SQL injection, cross-site scripting, local/remote file inclusion, command injection, and protocol violations—without requiring app-specific knowledge. Rules are organized into paranoia levels so operators can tune detection aggressiveness and balance false positives against coverage. ...

lua-resty-waf is a web application firewall implemented in Lua for OpenResty/NGINX, designed to run inline at the edge with low overhead. It inspects requests and responses during NGINX phases, applying rule logic and anomaly scoring to detect patterns like SQL injection, cross-site scripting, and protocol abuse. Rules are organized into policies with configurable actions—block, log, or allow—and can leverage shared dictionaries for counters, rate limits, and caching decisions. Because it...

A package of scripts to watch for snort alerts, change / create firewall rules to block high priority alerts, and record recent blocks. It will increase block times based on previously recorded blocks

Snort2Pf is a small Perl daemon which greps Snort's alertfile and blocks the "naughty" hosts for a given amount of time using pfctl.

Authdefender is a filtering application that, in combination with iptables, blocks malicious users from accessing any aspect of the server in question. Malicious users are defined by brute force ssh/ftp attempts and blocked regardless of tcp wrappers.

Gardol monitors system log files to detect denial of service and other attacks and blocks attacking sites with Linux iptables. Attack detection rules may be programmed in Perl.

PCIDR is a small Perl web application for cidr net blocks calculation. Using javascript, it is easy to include PCIDR to another web application.

A real time packet analysis utility that performs functions based on network events. MOAN contains a portscan detection utility which dynamically blocks IP's that portscan. MOAN is modular such that network analysis and preemptive actions may be added.

IP Blocker is an incident response tool that automatically updates access control lists on Cisco routers and other devices. Web and command line interfaces are both supported, as is logging, email notification, and automatic expiration of blocks.