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- linux.vbird.org
  
  鳥哥的 Linux 私房菜 -- Mail Server
  
  在這個郵件伺服器的架設中，我們首先談論 Mail 與 DNS 的重要相關性，然後依序介紹 Mail Server 的相關名詞，以及 Mail Server 的運作基本流程與協定，也會談到相關的 Relay 與郵件認證機制等項目， ...
  
  2026-04-18
  
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  鳥哥的 Linux 私房菜 -- FTP Server -- Wu FTP
  
  [root @test /root]# ncftp ftp://ftp.nsysu.edu.tw/Linux 直接連接到 Linux 底下的 Linux 目錄下！遠端主機的一些服務指令： ncftp /pub/Linux > cd Redhat dir
  
  2026-04-23
  
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Nmap - Free Security Scanner For Network Exploration ...

日期：2026-04-18

Nmap uses raw IP packets in novel ways to determine what hosts are available on the ... for comparing scan results (Ndiff), and a packet generation and response analysis tool (Nping)....

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Port scanner - Wikipedia, the free encyclopedia

日期：2026-04-20

A port scanner is a software application designed to probe a server or host for open ports. This is often used by administrators to verify security policies of their networks and by attackers to identify running services on a host with the view to comprom...

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psad: Linux Detect And Block Port Scan Attacks In Real Time

日期：2026-04-17

Q. How do I detect port scan attacks by analyzing Debian Linux firewall log files and block port scans in real time? How do I detect suspicious network traffic under Linux? A. A port scanner (such as nmap) is a piece of software designed to search a netwo...

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Port Scan Detectors - Softpanorama: (slightly skeptical) Open Source Software Educat

日期：2026-04-19

Softpanorama Recommended Linux-Sec.net NIC-based intrusion detection: A feasibility study File Format: Microsoft Powerpoint 97 - View as HTML... Conclusions. Basic Algorithms. Port Scan Detector (PSD). Anomaly Detector. ... NIC-based Naïve Bayes ......

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Network Probes Explained: Understanding Port Scans and Ping Sweeps | Linux Journal

日期：2026-04-21

The most common type of network probe is probably the port scan. A port scan is a method used by intruders to discover the services running on a target machine. The intruder can then plan an attack on any vulnerable service that she finds. For example, if...

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IPTables GeoIP, Port Knocking and Port Scan Detection

日期：2026-04-21

Note 1: Works on dedicated servers as well as on any KVM or XEN VPS; does NOT work on OpenVZ VPS due to its limitations. Note 2: If you upgrade your server's Linux kernel later, you must first comment out the relevant IPTables rules, reboot the server, th...

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What Is a Port Scan Attack on a Computer? | eHow

日期：2026-04-18

Internet networking uses the concept of ports to differentiate different programs, or services, located at the same IP address. For example, a computer could run a Web server ......

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scanlogd - a port scan detection tool - Openwall - bringing security into open computing environment

日期：2026-04-18

scanlogd - a port scan detection tool scanlogd is a TCP port scan detection tool, originally designed to illustrate various attacks an IDS developer has to deal with, for a Phrack Magazine article. Thus, unlike some of the other port scan detection tools ...

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