作業系統‎ > ‎SCO‎ > ‎

Caldera OpenLinux Server

張貼者:2010年6月2日 下午2:10service orderble   [ 蔡長明 已於 2013年9月23日 上午6:39 更新 ]

Caldera® OpenLinux  Server為商務所需的網絡應用程序提供了穩定、安全、易於安裝和管理的Linux服務器平台,從而將Linux的地位提高到商業應用領域。

三種常用的現成配置,能讓您馬上使用

Caldera OpenLinux Server具有針對下述常見的服務器產品的默認工作配置:

安全的Web服務器--Apache、SSL、perl、php、加固日誌文件的x.509證書、負載平衡等。 
文件和打印服務器--Microsoft、Linux和UNIX文件和打印服務。 
網絡基礎設架構--DNS、DHCP、Sendmail、序列服務器、消息服務器和防火牆等


----
開發商:SCO
原廠網址:http://www.sco.com/   改為 http://www.xinuos.com/ 
採購正式版、大量授權報價、技術支援、軟體諮詢、委託採購、詢問報價請來電 02-29299388 分機16 , 
來信service@orderble.com
------------------------------------------------------------------------------

Caldera® OpenLinux  Server為商務所需的網絡應用程序提供了穩定、安全、易於安裝和管理的Linux服務器平台,從而將Linux的地位提高到商業應用領域。

三種常用的現成配置,能讓您馬上使用

Caldera OpenLinux Server具有針對下述常見的服務器產品的默認工作配置:

安全的Web服務器--Apache、SSL、perl、php、加固日誌文件的x.509證書、負載平衡等。 
文件和打印服務器--Microsoft、Linux和UNIX文件和打印服務。 
網絡基礎設架構--DNS、DHCP、Sendmail、序列服務器、消息服務器和防火牆等。

安全性重點

不幸地是,真正安全的系統唯有不開機放在保險庫裡的系統。 次安全的系統就是進行謹慎地審核、採取安全措施並安裝許多入侵檢測軟件包的系統。 把系統放在互聯網上將要冒相當大的風險,你永遠無法得知你的系統有多安全。 Caldera公司不僅在系統安全上做了大量工作,還將相關的工作寫成文檔以便用戶知道系統有多安全,而不是一廂情願地自我安慰。
 
穩定性

Linux有著令人驚奇的穩定性。 已知有很多已經運行了許多年而不曾重新啟動的Linux系統。 但並非所有開放源代碼或商業化軟件都是穩定的。 與其只是為用戶提供一大堆開放源代碼的軟件,不如像Caldera公司這樣,選擇、集成和測試主要開放源代碼和商業化軟件,創建出具有預見性的滿足商務運行要求的服務器,滿足用戶現在和將來的需要。

易於安裝

Lizard?--第一個基於GUI和獲獎最多的Linux安裝軟件,歷經4代產品的演進,提供更加簡易的安裝與配置,同時為用戶提供令人難以置信的靈活性,從而指定Linux在系統上的運行方式。 Lizard也包含軟件RAID設置和安裝、文件系統選擇和設置,以及為了提高安裝靈活性而提供的客戶軟件包選擇。
 
簡易的Linux管理

安裝Linux是一項任務,應組織需求優化和調整Linux可能是另一件完全不同的工作。 Caldera公司提供了一些工具,以實現本地或遠程管理服務器的目的。
首先,每個OpenLinux Server中都包含Webmin,此為基於瀏覽器的常用的遠程管理工具,提供完全符合需求的GUI工具來配置系統的各個方面。用戶不止可以利用GUI配置系統,也可以由過去常用的命令控制台來完成所任務。
其次,每個OpenLinux Server中都包含Caldera Volution代理程序,以便服務器可以使用Volution進行管理。 Volution是目前運行和管理海量Linux系統時可以使用的最先進的Linux管理產品。 OpenLinux Server包含一個Webmin模塊,可以配置Volution代理,以便能在用戶的系統環境中正常工作。 詳盡的在線信息
高品質的文檔是任何軟件產品成功的重要關鍵。 Caldera公司並非納入大量的文檔,讓用戶不知所從。 相反,Caldera建立了一個文檔引擎,用戶從Web瀏覽器可以輕易地查看所有Caldera和開放源代碼提供的文檔。 除此之外,Caldera還在系統中添加了大量幫助文件,不論您是新手還是專家,都能隨時獲得有關安裝、配置、管理和使用OpenLinux Server的幫助。 用戶無須購買相關書籍,卻可以隨時隨地地瀏覽自己需要的信息。

其他重要特性

權限和服務審核--文件和服務通過審核與更新授予相應的訪問許可權和運行特權,降低安全風險。 
入侵檢測--OpenLinux Server中集成了幾個軟件包,用於檢測對文件、端口等的入侵,並通知和向管理員提出建議,以便管理員能採取保護措施。 
Linux 2.4內核--新的Linux 2.4內核是OpenLinux Server產品中的主要部件。 Linux 2.4內核顯著提高了對新硬件設備的支持,增加了SMP的可擴展能力,擴大了內存支持量(多達64GB內存),提高了I/O性能,同時增強了許多其他的性能。 
軟件更新和維護--OpenLinux Server附有Caldera公司的Volution On-line的60天試用服務,在註冊後使用。 本服務允許註冊用戶接收和應用安全性、開放源代碼軟件和Caldera專用軟件的更新程序。 Volution On-line也包含一個決策工具,幫助用戶在應用軟件更新程序之前測試程序應用的效果,因而可以節省用戶的時間並避免可能出現的麻煩。 
安全的Webmin--Webmin程序已經更新到可以支持瀏覽器和所管理的OpenLinux Server之間的128位加密通信。 此外,Webmin在介面設計上更為美觀簡潔,提高用戶的工作效率。 
Webmin:遠程瀏覽器介面的配置和管理軟件

DocView--瀏覽器介面的文檔引擎,支持所有Caldera和開放源代碼文檔,以便用戶從任何地方通過瀏覽器訪問這些文檔,或者本地訪問OpenLinux Server,或者通過網絡及互聯網進行訪問。 用戶可以搜索、查找和打印自己需要的任何相關文檔,打印出的文件美觀整潔,並具有專業化排版風格。 不會再出現手工檢索卷宗,或者離開辦公室就不能訪問文檔的現象。 用戶可以一有需要,就隨時隨地得到這些內容。 
Volution運行代理程序--系統中包含Volution運行代理程序,以便Volution服務器可以運行軟件和管理系統性能。 
安全的webserver--OpenLinux Server中包含最新的、穩定的並帶有增強型安全通信服務的Apache服務器、x.509證書服務、在諸如OpenLinux Servers之間進行負載平衡的功能、穩定的Web日誌和許多其他Web服務器增強件。 自定義功能--系統為專家用戶是否選擇各個RPM提供了安裝選項,以便用戶定制滿足自己需要的服務器。 
純文本操作--安裝選項允許安裝者優先安裝KDE用戶界面。 這樣可以釋放服務器使用的系統資源,同時又能訪問控制台、Webmin和文檔。 
軟件RAID支持--OpenLinux Server包含在安裝過程中建立RAID的軟件工具,使用戶可以利用自己選擇的磁盤系統,而不必購買昂貴的硬件RAID解決方案。 
Java SDK版本1.3--最新的Sun Microsystems Java 2 Standard Edition(Java 2標準版,J2SE),包含SDK版本1.3。 
Linux無人看管安裝(LUI)--LUI是安裝工具,管理員通過這個工具可以快速生成Linux配置並在一個或多個系統上安裝,無須進行人工交互。 



----
Caldera OpenLinux is a defunct Linux distribution that was created by the former Caldera Systems (now SCO Group) corporation. It was the early "business oriented distribution" and foreshadowed the direction of developments that came to most other distributions and the Linuxcommunity generally.

Corsair, a user interface for Netware, was a project founded inside of the Novell corporation within the Advanced Technology Group. Novell wanted an internet desktop and conducted research on how to better and more easily integrate and manage network access for users. The Windows networking support for Novell networks would not be improved until later releases[1] and the internet was dominated by Unix based operating systems. Relative to their needs, Novell deemed the Unixes of the day were too hardware intensive, too large, and charged too much in license fees.[2]

This group became convinced that Linux offered the best possible answer for the OS component. There were many other components as well, of particular interest were:
Willows, a Microsoft Windows-compatible API for Unix systems to allow recompilation of Windows programs for Linux.[3]
The Ferret meeting browser.[4]
WordPerfect, a (at this time) cross platform wordprocessing application
Wine, a compatibility layer for running Windows and DOS software.

On April 5, 1994, the Board of Novell brought in Robert Frankenberg, the general manager of Hewlett-Packard Personal Information Products Group to replace Ray Noorda as CEO of Novell. Novell's stock price had performed poorly recently due to flagging growth. At Novell the Network division was growing at a pace of 19% per year, the Unix business division which was flat, and the Desktop Applications division which was shrinking at a rate of $400 million per year. Frankenberg's initiative was to refocus the company on networking and networking services. In terms of the Corsair that meant shedding most of the pieces. Negotiations started which would eventually lead to Wordperfect being sold off to Corel. The Advanced Technology Group was disbanded which shut down Willow and the OS project. Ferret was in line with the new direction and this component was kept within Novell. Ray Noorda had founded a venture capital investment group called the Canopy Group two years earlier. He felt there was substantial promise in both the OS project and the Willow project. He created two companies, to continue the work started at Novell. The OS company was called Caldera System, and the API company Willows Software.

Noorda's early vision for Caldera was to create an IPX based version of Linux which would license the key components, resell this technology back to Novell to continue the "Internet Desktop." In effect, Caldera started life as an outsourcing project for Novell. Caldera started with ten employees and most were from Novell: Bryan Sparks, founder/president (Novell); Bryce Burns, chief operations officer (Novell); Ransom Love, VP marketing (Novell); Greg Page, VP engineering (Bell Labs, AT&T); Craig Bradley, VP Sales (Lotus, Word Perfect).



At this point Ransom Love and Noorda took note of the technologies that Caldera put together. Specifically:
Caldera was built on the Linux kernel which ran on x86, PowerPC and Alpha architectures.
Its wide area networking was far more advanced than the Microsoft Networked OSes at the time (Windows for Workgroups and Windows NT 3.51), due to its being Unix-like.
Caldera worked perfectly inside of the most common local area network, IPX.
The Willows API code written for the Caldera OS would run on Unix, Microsoft Windows, and Apple Macintosh, as well as Caldera itself.

More than just a component for Novell, Caldera has assembled the components needed to create a VAR platform. Caldera faced a chicken and egg problem. OEM VAR applications often depended crucially on other company's commercial applications. Since these other applications hadn't been ported to Linux yet they couldn't meaningfully port their own applications. Caldera responded by creating a binary applications packagewhich allowed Linux to run Unixware and OpenServer applications, the Linux Application Binary Interface (ABI) project, and assisting SCO in creating the Linux Kernel Personalities.[5] Linux Kernel Personalities was worked on to bring Linux application compatibility to SCO Unix (formerly UnixWare) and OpenServer. "The idea was to enable developers to write for both Unix and Linux with a common Application Programming Interface (API) and common Application Binary Interface (ABI). That way developers didn't have to work so hard, and Unix users, the client base we inherited from SCO, could run Linux applications."[6]

Caldera also supported Alan Cox in his work on SMP.[7] If Linux destroyed the Unix base on Intel then Sun Microsystems wouldn't have a low-end Unix path. This point becomes more interesting in light of SCO's litigation 8 years later. That is IBM was not the company involved in the SMP work and moreover the company most directly involved is the company that later became the SCO group, essentially SCO suing IBM for work it itself did.

During 1996, Caldera continued to be a valuable player, for example, on May 23, 1996, at the Linux Kongress in Berlin, Germany, Caldera announced its plans to obtain POSIX and FIPSCertifications and the X/Open brand for UNIX 95 and XPG4 BASE 95 for the Linux operating system kernel.[8]



By 1997 Caldera had taken on the form that it would be most remembered for. Caldera had switched over to the high end Linux product. The "business" linux distribution became more rich with features with bundled proprietary software. However, it became less community oriented and was released less frequently than other Linuxes did. Other differences included automated configuration for administration tools, paid technical support staff, built-in consistent default GUI, and a range of supported applications. In 1995, for example when XFree86 was still very hard to configure and unreliable on most chip sets, Caldera had shipped with MetroLink's Motif and XI Graphic's Accelerated-X.




Comments