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Common TCP/UDP ports used by Apple programs and services

As with any network and internet-capable computing system, many of Apple's services and programs require access to the internet and/or local network using TCP and UDP ports to function properly. When ports are blocked for a given service, applications

By June 3, 2009


Linksys firmware update: "Auto-enter" customized settings; Streaming Transport via UDP

Linksys firmware update: "Auto-enter" customized settings; Streaming Transport via UDP

By May 25, 2001


Google gooses Chrome with network speed-boost idea: 'QUIC'

Trying to cut Net communication delays, Google has begun testing a new technology called QUIC that seeks to marry security, reliability, and performance.

By June 27, 2013


Cisco VPN connections limited to TCP

Many people were relieved to see Apple include support for Cisco VPN in the Snow Leopard version of Mac OS X; however, the implementation in the operation system is limited to TCP connections and does not support the UDP protocol. This has stopped seve

By September 1, 2009


WikiLeaks endures a lengthy DDoS attack

Under a barrage of more than 10GB per second in a DDoS attack, the document-leaking organization's Web site has been either inoperable or sluggish since the beginning of the month.

By August 13, 2012


UPnP networking flaw puts millions of PCs at risk

Security researchers say that the danger stems from widely used technology found in routers and other standard networking equipment.

By January 29, 2013


Botnet services for hire: $8.94 an hour

A VeriSign investigation underscores how little money or technical expertise is needed to carry out botnet attacks.

By May 25, 2010


Microsoft patches critical Windows bug, but not Duqu flaw

Software giant prioritizes update that closes hole in TCP/IP stack in Windows 7, Vista, and Server 2008.

By November 8, 2011


Ustream outage due to DDoS aimed at citizen journalist

Hackers target streaming of anti-Putin protests with attack, Ustream says.

By May 9, 2012


Odds and Ends: Apple Knowledge Base updates

Apple support documents on Power Mac G5 startup, usage of Restore discs with Panther and commonly used network ports.

By April 13, 2007