OpenBSD Handbook

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    • Part I. Install & Configure
      • Introduction to OpenBSD
      • Installing OpenBSD
      • The X Window System
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      • Managing Software: Packages and Ports
    • Part II. Daily Operations
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    • Part III. System Administration
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      • Serial Communication
    • Part V. Miscellaneous
      • Virtualization Cheat Sheet
      • OpenBSD Cheatsheet
      • How-to Guides
        • Complete the First 30 Minutes After Installation
        • Check Hardware Compatibility Before Installing
        • Bootstrap Wi-Fi Firmware Without Ethernet
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        • Build OpenBSD from Source
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        • Troubleshoot PF, NAT, and Routing
        • Automate OpenBSD Installation with Autoinstall and PXE
        • Route Multiple VLANs with PF
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        • Troubleshoot Package Installation and Update Failures
        • Route IPv6 Networks without NAT
        • Schedule Recurring Maintenance
        • Plan a Docker Workload Migration to OpenBSD
        • Build a Mail Server with OpenSMTPD, Dovecot, and Rspamd
        • Build a Simple Router and Firewall
        • Monitor an OpenBSD System
        • Back Up and Restore an OpenBSD System
        • Configure softraid RAID1
        • Recover an OpenBSD System That Does Not Boot
        • Install Z shell (zsh)
      • OpenBSD for Linux Users
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    • OpenBSD FAQ
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      • OpenBSD Package Search

        fastnetmon-1.2.9p0

        Package search / Categories / OpenBSD 8.0 release
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        OpenBSD branch
        OpenBSD 8.0 releaseCurrent snapshot

        OpenBSD 8.0 release ยท amd64

        DDoS detector with multiple packet capture engines

        Project homepage: https://fastnetmon.com/guides/

        Description

        FastNetMon is a very high performance DDoS detector built on top of multiple packet capture engines: NetFlow, IPFIX, sFLOW. It could detect malicious traffic in your network and immediately block it with BGP blackhole or BGP flow spec rules. It has solid support for all top network vendors and has unlimited scalability due to flexible design.

        Package information

        Ports path
        net/fastnetmon
        Package architecture
        amd64
        Maintainer
        The OpenBSD ports mailing-list <ports@openbsd.org>
        Categories
        net, security
        Available flavors
        None listed
        Only for architectures
        aarch64, amd64, arm, i386, mips64, mips64el, powerpc, powerpc64, riscv64, sparc64

        Ports list build and test dependencies as well as runtime dependencies. pkg_add selects those needed for installation.

        Direct dependencies

        Library

        • devel/abseil-cpp
        • devel/boost
        • devel/log4cpp
        • devel/protobuf
        • databases/libhiredis
        • net/grpc

        Build

        • devel/capnproto
        • devel/cmake/core STEM->=4
        • devel/ninja
        • devel/dwz
        OpenBSD README

        This README contains unresolved ports variables; replace them before using its commands.

        +-----------------------------------------------------------------------
        | Running fastnetmon on OpenBSD
        +-----------------------------------------------------------------------
        
        NetFlow input from pf
        ---------------------
        By default FastNetMon listens on port 2055 for incoming NetFlow data. This can
        be obtained from pflow(4). Minimal pf.conf addition to export all states through
        pflow(4):
        
        	set state-defaults pflow
        
        And create a pflow0 with:
        
        	# ifconfig pflow0 flowsrc 127.0.0.1 flowdst 127.0.0.1:2055
        
        The default protocol version (5) works fine with FastNetMon.
        
        Configuration
        -------------
        At the very minimum the known networks need to be recorded in
        ${SYSCONFDIR}/fastnetmon/networks_list in CIDR notation, otherwise all traffic
        is classified as "other traffic".
        
        Also a notification script needs to be configured and installed to actually
        perform a ban. A stub is provided in
        /usr/local/share/examples/fastnetmon/notify_about_attack.sh
        

        Package guides

        • Installing and updating packages

        Package details as JSON

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