Application: A secure Web Architecture Sample Clauses

Application: A secure Web Architecture. In the context of a project called DADDI, we have designed an architecture which provides an IDS (Intrusion Detection System) component in charge of detecting intrusions in an infor- mation system by comparing the outputs delivered by several diverse Web servers [29, 54]. The architecture (see Figure 6.7) is organized as follows. A proxy handles the clients’ re- quests. It forwards the requests received from a client to the Web servers and later forwards the response received from the IDS to this client. It ensures that the Web servers receive the same sequence of requests and thus evolve consistently. In this approach, the idea is to take advantage of the existing software and hardware diversity: as the Web servers have been designed and developed independently, they do not exhibit the same vulnerabilities. If we assume that a malicious payload contained in a Web request cannot take advantage of two different vulnerabilities, then an intrusion may occur in only one Web server at a time. In this case, as the other Web servers are not exhibiting the same vulnerability, they are not affected by the attack and they all provide a same response that is supposed to be different from the response provided by the corrupted Web server. The IDS is in charge of comparing the responses returned by the servers. To select the response that has to be sent back to the client, it uses a majority voting algorithm. If it detects some differences among the responses, it raises an alarm. We showed in [29] that this solution guarantees confidentiality and integrity. Availability is partially offered at the server level thanks to the set of diverse Web servers. To enhance availability, it is also necessary to replicate the reverse proxy/IDS and hence to form a group of reverse proxies. To ensure that the group of reverse proxies/IDS evolve consistently, despite the occurrence of failures, an atomic broadcast service has to be used. This atomic broadcast service relies upon a consensus protocol to order the requests. Figure 6.7: Architecture of the secure web-server. Among the members of the group, a leader is elected. It is in charge of broadcasting the requests to the set of diverse Web servers. In [29], we proposed a solution in which each request to be submitted to the Web servers is only addressed to the leader of the group of reverse proxies. In this particular approach, the leader is the unique member of the group to propose value and hence the RO optimization is effective...
AutoNDA by SimpleDocs

Related to Application: A secure Web Architecture

  • Architecture The Private Improvements shall have architectural features, detailing, and design elements in accordance with the Project Schematic Drawings. All accessory screening walls or fences, if necessary, shall use similar primary material, color, and detailing as on the Private Improvements.

  • Network Interconnection Architecture Each Party will plan, design, construct and maintain the facilities within their respective systems as are necessary and proper for the provision of traffic covered by this Agreement. These facilities include but are not limited to, a sufficient number of trunks to the point of interconnection with the tandem company, and sufficient interoffice and interexchange facilities and trunks between its own central offices to adequately handle traffic between all central offices within the service areas at P.01 grade of service or better. The provisioning and engineering of such services and facilities will comply with generally accepted industry methods and practices, and will observe the rules and regulations of the lawfully established tariffs applicable to the services provided.

  • Access Toll Connecting Trunk Group Architecture 9.2.1 If CBB chooses to subtend a Verizon access Tandem, CBB’s NPA/NXX must be assigned by CBB to subtend the same Verizon access Tandem that a Verizon NPA/NXX serving the same Rate Center Area subtends as identified in the LERG.

  • Physical Architecture 59.2.1 CenturyLink's network architecture in any given local exchange area and/or LATA can vary markedly from another local exchange area/LATA. Using one or more of the NIMs herein, the Parties will agree to a physical architecture plan for a specific LATA, or if appropriate based on other requirements in Section 59, Local Calling Area. The physical architecture plan, as described in the Local Interconnection POI Profile, will be discussed during joint implementation planning. CLEC and CenturyLink agree to Interconnect their networks through existing and/or new Interconnection Facilities between CLEC switch(es) and CenturyLink's End Office Switch(es) and/or Tandem Switch(es). The physical architecture plan will be in accordance with Forecasting and Planning requirements in Article IV.

  • Schematic Design Phase Services § 3.2.1 The Architect shall review the program and other information furnished by the Owner, and shall review laws, codes, and regulations applicable to the Architect’s services.

  • APPLICATION/SCOPE 1.1 This collective agreement shall be applicable to every person who requires a teacher certificate as a condition of employment with the School Division excepting those positions agreed to be excluded in local bargaining between the School Division and the Association. Effective March 4, 2020, clause 1.1 above is repealed and replaced by the following clause:

  • Alternative Work Schedule An alternate forty (40) hour work schedule (other than five (5) uniform and consecutive eight (8) hour days in a seven (7) day period), or for hospital personnel an eighty (80) hour workweek in a fourteen (14) day period and other mutually agreed upon schedules that comply with applicable federal and state law. Employee work schedules normally include two (2) consecutive days off.

  • Alternative Work Schedules Alternative work schedule means an approved schedule for an Employee that deviates from the work week described in Section 1, Section 2, or a schedule that deviates from a worksite’s normal schedule. Employees who work a “shift work schedule” as part of a rotating group of individuals who must continuously maintain a 24-hour operation or facility are not eligible for an alternative work schedule.

  • Schematic Design Documents In accordance with the approved Preliminary Design and Construction Schedule and based upon approval of and comments made by the Owner regarding the Concept Design Studies, the Design Professional shall prepare and submit to the Owner Schematic Design Documents, including drawings and outline specifications. These documents shall represent a further development of the approved design concept, providing additional detail and specificity regarding the intended design solution. Typically, all such documents shall be drawn to scale, indicating materials and assemblies, as appropriate, to convey the design intent and to illustrate the Project’s basic elements, scale and relationship to the Site. All major pieces of furniture and equipment to be fixed or supplied by the CM/GC shall be illustrated to scale. (See ASTM Standard Practice E 1804-02, August 2007, Sections 6.3, 8.2 and 8.3 for guidance on information which is generally developed in Schematic Design.)

  • Application Services Under an “Application Services” engagement, we will assist you with defining, developing and deploying end-to-end enterprise or departmental applications; tasks may include determining the optimal technology approach and caching strategy to deliver effective, high-performance applications; leveraging a best practice approach for building new applications which includes conducting user workshops, building wireframes, iterating, testing, documenting and mentoring to increase adoption; and enhancing, optimizing or redesigning existing applications for improved user experience, faster performance or extended functionality.

Draft better contracts in just 5 minutes Get the weekly Law Insider newsletter packed with expert videos, webinars, ebooks, and more!