Nagios 簡介與功能
圖-Nagios
Nagios是一個Linux/Unix操作系統下的監視系統，為我們平臺的運行和網絡駕航！
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環境下運行的監控系統和網絡的應用程序，它監控您所指定的主機和服務，并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 最初被設計成運行在 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.)
監控網絡服務 (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、磁盤使用情況等)
Simple plugin design that allows users to easily develop their own service checks
簡單的插件設計允許用戶可以很簡易地開發它們自己的服務檢查
Parallelized service checks
并行服務檢查
Ability to define network host hierarchy using "parent" hosts, allowing detection of and distinction between hosts that are down and those that are unreachable
可以通過 "parent" 來定義網絡主機的繼承，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(通過郵件、頁面或用戶定制的方式)
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運行期間定義事件處理器，以便主動解決問題。
Automatic log file rotation
日志文件自動循環
Support for implementing redundant monitoring hosts
支持冗馀監控主機的實現
Optional web interface for viewing current network status, notification and problem history, log file, etc.
可選的 Web 界面，該界面用于查看當前網絡狀態、通知和問題列表、日志文件等
通過文章，我們對Nagios有了一個間接的了解，想進一步了解的話，那就得實際操作下！
【編輯推薦】
- Nagios Sendmail無法發送mail郵件的解決方法
- Nagios中告警郵件如何處理 Sendmail服務的配置
- Nagios監控Sphinx
- Nagios監控Sphinx的indexer日志
- 12.10 Nagios監控策略
