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whitepaper In this model, the protocol ends when the sender has successfully received mrec replies from the receiver. The expected time for completion of the inquiry process, i.e.the time elapsed until the bound mrec on the number of replies heard by the...
[10 Apr 2008]
whitepaper Factoring in the reputation of the sender based upon actual mail traffic promises to change how organizations protect their e-mail. Defending against e-mail borne threats (phishing, viruses, spam, etc.is becoming more challenging every day.
[10 Apr 2008]
whitepaper However, recent HIPAA regulations restrict the use of technologies that don't provide adequate protection for confidential patient information.With Omtool's Genidocs solution, users can scan a hardcopy document using an HP multifunction printer or...
[10 Apr 2008]
whitepaper The advantages of IP multicast can be seen whenever users need information transferred from a sender to multiple recipients. Cisco Catalyst 6500 Series switches provides industry-leading support for IP multicast, from the wiring closet to the...
[10 Apr 2008]
whitepaper Effective secure messaging technologies keep sensitive information private, prevent anyone from tampering with the contents of messages and authenticate the identity of both the sender and recipient. Enterprises are becoming increasingly interested...
[07 Apr 2008]
whitepaper It includes features such as Real-Time Block List Service Provider Support, global deny and accept lists, sender filtering and inbound recipient filtering. Exchange Server 2003 introduced some native anti-spam capabilities that helped Systems...
[03 Apr 2008]
whitepaper Newcastle wanted to protect the confidentiality, security, and integrity of customers' financial information that is shared with third-parties such as solicitors, valuers, government agencies, and the judiciary and enforce audit trail for...
[24 Mar 2008]
whitepaper Sender authentication Spam has increased more than 200% since 2005. Now, learn new prevention techniques for protecting your organization--in 2008 and beyond. This white paper is designed to help you fight the 93% of Internet traffic classified as...
[06 Mar 2008]
Comment The only mitigation is the sender's explanatory signature line of "sent from my BlackBerry". Addicts may take their CrackBerrys on holiday and even up to bed. But there's nothing wrong with the core technology, says Rob Bamforth - at least nothing...
[21 Feb 2008]
whitepaper There is a direct connection between an SMTP sender (the client) and the destination SMTP receiver (the server). The SMTP client keeps the mail at the sender until it transmits and copies it successfully to the SMTP receiver (server).
[20 Feb 2008]
News From wrongly addressed emails, users hitting reply when they meant forward - and adding derogatory comments about the accidental recipient, saucy text messages to an ex-girlfriend or wife, which were intended for the new girl in the sender's life...
[11 Feb 2008]
Photo This competition is now closed. The winning caption, from reader D Newton, was: "It's so sexy, our customers requested it be delivered in plain brown envelopes. Photo credit: Corinne Schulze/CNET Networks
[18 Jan 2008]
whitepaper At the TCP sender side, the arrival of an ack packet always triggers the sender to send data packets, which establishes a correspondency between the arrived ack packet and the sent data packets. This sequence characterizes the sender's behavior.
[14 Jan 2008]
whitepaper In the present implementation of Transmission Control Protocol (TCP) selective acknowledgment (SACK), every SACK block needs 8 bytes to carry information about the received packets, back to the sender.
[14 Jan 2008]
whitepaper Specifically, the TCP sender concludes that there is network congestion upon detecting packet losses or at time-outs. Hence, the TCP sender could mistake this event as congestion, which is untrue. Reliable data transmission over wireless multi-hop...
[14 Jan 2008]
whitepaper ImTCP is based on Reno TCP, with a modification to the sender program only. The ImTCP sender adjusts the transmission intervals of data packets, then estimates available bandwidth of the network path between sender and receiver utilizing the...
[14 Jan 2008]
whitepaper The TCP receiver sends cumulative acknowledgments (ACKs) for successfully received segments, which the sender uses to determine which segments have been successfully received. The sender identifies the loss of a packet either by the arrival of...
[14 Jan 2008]
whitepaper The rate-based controller runs between the sender and the representative and achieves TCP fairness and fast response to losses at the representative. The selection mechanism of the representative allows the sender to select the representative in a...
[14 Jan 2008]
whitepaper TCP Westwood (TCPW) is a sender-side modification of the TCP congestion window algorithm that improves upon the performance of TCP Reno in wired as well as wireless networks. The improvement is most significant in wireless networks with lossy links.
[14 Jan 2008]
whitepaper TCP Westwood (TCPW) is a sender-side only modification of TCP Reno congestion control, which exploits end-to-end bandwidth estimation to properly set the values of slow-start threshold and congestion window after a congestion episode.
[14 Jan 2008]
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