LAN Manager: Difference between revisions
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'''LAN Manager''' was a [[Network operating system|Network Operating System]] (NOS) available from multiple vendors and developed by [[Microsoft]] in cooperation with [[3Com Corporation]]. It was designed to succeed 3Com's[[3+Share]] network server software which ran atop a heavily modified version of [[MS-DOS]]. |
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==Development History== |
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LAN Manager is based on [[OS/2]]. It uses the [[Server Message Block]] protocol atop the [[NetBIOS Frames protocol]], similar to its predecessors [[MS-NET]] for [[MS-DOS]] and [[Xenix-NET]] for [[Xenix|MS-Xenix]]. There was also '''LAN Manager/X''' (LMX) for [[UNIX]] based systems. |
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LAN Manager was based on the [[OS/2]] operating system co-developed by [[IBM]] and Microsoft. It originally used the [[Server Message Block]] protocol atop either the [[NetBIOS Frames protocol]] (NBF) or a specialized version of the [[Xerox Network Services]] (XNS) protocol. These '''legacy''' protocols had been inherited from previous products such as [[MS-NET]] for [[MS-DOS]], [[Xenix-NET]] for [[Xenix|MS-Xenix]], and the afore-mentioned 3+Share. A version of LAN Manager for Unix-based systems called '''LAN Manager/X''' was also available. |
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In 1990, Microsoft announced LAN Manager 2.0 with a |
In 1990, Microsoft announced LAN Manager 2.0 with a host of improvements, including support for TCP/IP as a transport protocol. The latest version LAN Manager, 2.2, which included an MS-OS/2 1.31 base operating system, remained Microsoft's strategic server system until the release of [[Windows NT 3.1| Windows NT Advanced Server]] in 1993. |
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Many vendors shipped licensed versions, including: |
Many vendors shipped licensed versions, including: |
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*[[ |
*[[3Com Corporation]] [[3+Open]] |
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*[[HP]] LAN Manager/X |
*[[HP]] LAN Manager/X |
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*[[IBM]] [[LAN Server]] |
*[[IBM]] [[LAN Server]] |
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Revision as of 00:24, 14 August 2009
LAN Manager was a Network Operating System (NOS) available from multiple vendors and developed by Microsoft in cooperation with 3Com Corporation. It was designed to succeed 3Com's3+Share network server software which ran atop a heavily modified version of MS-DOS.
Development History
LAN Manager was based on the OS/2 operating system co-developed by IBM and Microsoft. It originally used the Server Message Block protocol atop either the NetBIOS Frames protocol (NBF) or a specialized version of the Xerox Network Services (XNS) protocol. These legacy protocols had been inherited from previous products such as MS-NET for MS-DOS, Xenix-NET for MS-Xenix, and the afore-mentioned 3+Share. A version of LAN Manager for Unix-based systems called LAN Manager/X was also available.
In 1990, Microsoft announced LAN Manager 2.0 with a host of improvements, including support for TCP/IP as a transport protocol. The latest version LAN Manager, 2.2, which included an MS-OS/2 1.31 base operating system, remained Microsoft's strategic server system until the release of Windows NT Advanced Server in 1993.
Many vendors shipped licensed versions, including:
- 3Com Corporation 3+Open
- HP LAN Manager/X
- IBM LAN Server
- Tapestry Torus
Security Vulnerability
LAN Manager authentication uses a particularly weak method of hashing a user's password known as the LM hash algorithm. This makes the authentication crackable in a matter of seconds using Rainbow Tables or in few hours using brute force. Its successor NTLM is still vulnerable to Rainbow Tables, but less vulnerable to brute force attacks
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