Have you ever heard about Rohati? You should have. They are definitely amongst my list of really interesting vendors in the Identity and Access Management market and the overall security market. And they are on the way to provide a real alternative to todays complex, cost-intensive and still error-prone approach for managing access controls at file servers. They don't end there but provide as well interesting features for controlling the access to web applications - but the part I like most is the one around CIFS/SMB (Common Internet File System/Server Message Blocks) and access control for file systems.
Rohati is a start-up which provides appliances to enforce access controls (or authorizations) at the network level. They are one of the currently few vendors in the new segment of "network based authorization management" or "network based entilement management". All the traffic is analyzed by their appliances. This analysis supports every layer up to layer 7, e.g. the application layer. The CIFS support will be ready soon, currently being in beta.
Enforcing access controls at that level provides several advantages:
- At that level, one consistent layer of policy definition and enforcement can be defined.
- Changes in policies are easy to implement. It is, for example, pretty easy to secure some shares with financial statements in lock-up periods. That is by far easier to implement and enforce with the Rohati policy-based approach than at the ACL level of Windows servers, where it would require two explicit changes of the ACLs at fixed dates.
- There is one point of control, instead of different ACLs at different servers.
- Windows and Samba servers can be managed together.
Today, the management of ACLs as well at the file system level as at the share level often is a nightmare - for both administrators and auditors. Managing ACLs consistently, according to defined business rules, across many servers is pretty complex and definitely error-prone. With the Rohati approach, there could be a layer in front instead of the system-level management of ACLs.
For sure, the information still has to be shielded for the ones who access servers locally. But all network access could be controlled centrally.
Usually, I'm no friend of solutions which operate as an additional layer in front of existing systems. But in that case, I think it is really worth to have a look at. Whilst Rohati in enforcing authorizations for web applications is more or less competitive to existing software-based Web Access management solutions, the CIFS support provides entirely new options for authorization. That approach might take a lot of burden from system administrators and help to avoid errors in authorization management.
I even could imagine that such a policy-based, centralized model for authorization management might significantly influence what Microsoft is doing at the operating system level for a next-generation windows server and file system. There are some lessons Microsoft could learn from Rohati and adopt at the OS and software level.
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