Nagios is a system and network monitoring application. It watches hosts and services that you specify, alerting you when things go bad and when they get better. 　　Nagios 是一個在linux及unix環境下執行的監控系統和網路的應用程式，它監控您所指定的主機和服務，並在情況變得更糟或更好時提醒您注意。 　　Nagios was originally designed to run under Linux, although it should work under most other unices as well. 　　Nagios 最初被設計成執行在 Linux 上的，雖然它也能在大多數其它系統中也能同樣工作。 　　Some of the many features of Nagios include: 　　Nagios 包括以下一些功能： 　　Monitoring of network services (SMTP, POP3, HTTP, NNTP, PING, etc.) 　　監控網路服務 (SMTP、POP3、HTTP、NNTP、PING 等) 　　Monitoring of host resources (processor load, disk usage, etc.) 　　監控主機資源（處理器負載、磁碟使用情況等） 　　Simple plugin design that allows users to easily develop their own service checks 　　簡單的外掛設計允許使用者可以很簡易地開發它們自己的服務檢查 　　Parallelized service checks 　　並行服務檢查 　　Ability to define network host hierarchy using "parent" hosts, allowing detection of and distinction between hosts that are down and those that are unreachable 　　可以透過 "parent" 來定義網路主機的繼承，可以檢測和區分主機的當機狀態和不可達狀態 　　Contact notifications when service or host problems occur and get resolved (via email, pager, or user-defined method) 　　在服務或主機產生問題和修復時獲得通知（透過郵件、頁面或使用者定製的方式） 　　Ability to define event handlers to be run during service or host events for proactive problem resolution 　　可以在服務和主機事件執行期間定義事件處理器，以便主動解決問題。 　　Automatic log file rotation 　　日誌檔案自動迴圈 　　Support for implementing redundant monitoring hosts 　　支援冗餘監控主機的實現 　　Optional web interface for viewing current network status, notification and problem history, log file, etc. 　　可選的 Web 介面，該介面用於檢視當前網路狀態、通知和問題列表、日誌檔案等

 

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