So if we say OpenSIPs is the load balancer that directs traffic (call flow) along the road which is the Internet…where does all that traffic get directed towards? You guessed it. FreeSWITCH.
FreeSWITCH is a media server. Think of a media server as being similar to a language translator between two people who speak two completely different languages. In its simplest form, a media server takes audio from one person, processes it, and passes it on to another person. It also provides translation services, meaning if one person “talks” another language it can convert that language on the fly to something the other party can understand.
Spanning
Business-Class
Cloud-to-Cloud Backup
via Spanning.
$30/year to backup app data. I wonder if cloud to cloud stuff will soon take on the acronym c2c. AFAIK, this only backs up google apps. What about other apps?
Service Location Protocol
Service Location Protocol – Wikipedia, the free encyclopedia.
The Service Location Protocol (SLP, srvloc) is a service discovery protocol that allows computers and other devices to find services in a local area network without prior configuration. SLP has been designed to scale from small, unmanaged networks to large enterprise networks. It has been defined in RFC 2608 and RFC 3224 as Standards Track document.
Hadoop Tutorial
Welcome to the Yahoo! Hadoop tutorial! This series of tutorial documents will walk you through many aspects of the Apache Hadoop system. You will be shown how to set up simple and advanced cluster configurations, use the distributed file system, and develop complex Hadoop MapReduce applications. Other related systems are also reviewed.
P3P: The Platform for Privacy Preferences
P3P: The Platform for Privacy Preferences.
The Platform for Privacy Preferences Project (P3P) enables Websites to express their privacy practices in a standard format that can be retrieved automatically and interpreted easily by user agents. P3P user agents will allow users to be informed of site practices (in both machine- and human-readable formats) and to automate decision-making based on these practices when appropriate. Thus users need not read the privacy policies at every site they visit. Have a look at the list of P3P software.
CentOS 5 – BIND/named network unreachable resolving issue
Disable the IPV6 in BIND. For CentOS 5.4, edit the /etc/sysconfig/named file and add the following options into the BIND startup
OPTIONS=”-4″
This will cause the BIND server to only resolve or use IPV4 and disable IPV6 support. Save the file and restart BIND server.
via CentOS 5 – BIND/named network unreachable resolving issue | hafizonline.net blog.
This has been going on for months and I finally noticed these errors from named filling up syslog. The above fix worked and now syslog is quiet again — the way it should be.
DB2 – the secret database
Certainly, according to the Winter Corporation’s 2005 survey, the largest OLTP (On-Line Transaction Processing) databases in the world are hosted on DB2. The volume prize goes to the Land Registry at 23.1 TB and the prize for the number of rows goes to UPS – 89.6 billion; both run on DB2.
via DB2 – the secret database • The Register.
DB2 has always ruled in the mainframe environment: on that platform it has no peer. In 1996 (ten years ago!) IBM made all the right technical moves to expand the use of DB2 down to the mini and even the PC markets. DB2 was produced in three versions. These have had various names over the years – UDB (Universal DataBase) was often used but it now being gently dropped by IBM. The most useful names I’ve come across are:
• DB2 for z/OS (Mainframe)
• DB2 for iSeries (AS400 as was)
• DB2 for LUW (Linux, UNIX and Windows)
Dated 18 January 2006.
IBM Parallel Sysplex
In computing, a Parallel Sysplex is a cluster of IBM mainframes acting together as a single system image with z/OS. Used for disaster recovery, Parallel Sysplex combines data sharing and parallel computing to allow a cluster of up to 32 systems to share a workload for high performance and high availability.
via IBM Parallel Sysplex – Wikipedia, the free encyclopedia.
NASA unplugs last mainframe
Of course NASA is just one of the latest high profile mainframe decommissionings. In 2009 The U.S. House of Representatives took its last mainframe offline. At the time Network World wrote: “The last mainframe supposedly enjoyed “quasi-celebrity status” within the House data center, having spent 12 years keeping the House’s inventory control records and financial management data, among other tasks. But it was time for a change, with the House spending $30,000 a year to power the mainframe and another $700,000 each year for maintenance and support.”
via Layer 8: NASA unplugs last mainframe.
Cue violins.
Telecom Insights
For the publication of unique telecommunications research and fresh insights into the business.
via Telecom Insights.
Lower demand for PBX systems is not driven from a macroeconomic business cycle or some other temporary event. Telecom VARs are experiencing a much more microeconomic shift in technology that could better be classified as permanent, structural impairment to forward demand. The majority of Telecom VARs will cease to exist in their present form 24 months from now.