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OpenLDAP Quick Tips: Checking the state of replication

LinuxOpenLDAPOpen SourceSuretec Hi All,

I might as well start easing back into the OpenLDAP Weekly Newsletter by doing some "OpenLDAP Quick Tips". Here's the first one.

"Check that the synchronisation state indicators of any slaves or masters are the same":

[ghenry@suretec ~]$ ldapsearch -x -LLL -H ldap[?]://master:389 -s base -b 'dc=suretecsystems,dc=com' contextCSN[?] dn: dc=suretecsystems,dc=com contextCSN: 20081025222436.822813Z&000000;000#000000 [ghenry@suretec ~]$ ldapsearch -x -LLL -H ldap://slave:389 -s base -b 'dc=suretecsystems,dc=com' contextCSN dn: dc=suretecsystems,dc=com contextCSN: 20081025222436.822813Z&000000;000#000000

If they are the same, then replication has finished, otherwise replication has not finished or has failed.

For more technical detail, please see[?]%20Sync%20Replication

Asterisk 1.6.0 is the first official release of Asterisk 1.6

AsteriskLinuxOpenLDAPOpen SourceSuretec The first official release is out, and you can see lots of new features . Unfortunately there are still a few Realtime LDAP[?] driver bugs, but it's getting there.

It's well worth having a play with Asterisk 1.6.0 though.


OpenLDAP for Fortune 20 Enterprises

LinuxOpenLDAPOpen Source HP decided to partner with Symas on OpenLDAP. We engineered as well as funded major contributions to OpenLDAP. On several occasions, we had the opportunity to put the facilitator model to the test. Would Symas be able to respond to urgent support calls? Would they be able to turn around quick patches to fix bugs? Would they be able to get those patches accepted by the OpenLDAP project? Would the OpenLDAP project embrace the overall work of HP and Symas, even though it meant significant change to the underlying codebase? The answer to each of these questions was a resounding yes, and our expectations for working in this model were fully validated.

Learn how to do this for your Enterprise.

For Enterprise grade OpenLDAP Support and consultancy, contact Suretec or Symas.

GNU/Linux and Microsoft Active Directory

LinuxOpenLDAPOpen SourceSamba There's an interesting interview video with Gerald Carter of Samba and Likewise Software talking about Likewise Open:

Likewise Open is an open source, community project sponsored by Likewise Software to integrate Linux, Unix, and Mac in Microsoft Active Directory and authenticate users with their domain credentials. Likewise Open is licensed under the open source licensing so you can download it for free. Or, if you would like to become involved with the project, join one of the community mailing lists and discuss Likewise Open with other users and developers.

Suretec use Likewise Open for some of its cusomters and it's very good if you need to go down that route....

Hardware and Operating System Best Practices for OpenLDAP

LinuxOpenLDAPOpen SourceSuretec Just a quick one to say our partners Symas have written a very nice peice about how to pick your base hardware and operating system for use with OpenLDAP in your Enterprise:

The key to this first factor is that OpenLDAP is the most efficient, most stable, and most suitable LDAP[?] Directory Service technology for Enterprise production use. Installing it as a new service or an upgrade to an older technology will be the most cost-effective step assuming the capacity is available. In general, replacing an older Directory Technology will reduce the processor load by two to five times. It will also improve the stability of the server(s) making simplification of configurations tuned to frequent server outages possible. Symas OpenLDAP is available under inexpensive annual support subscriptions with no consideration for the number of CPUs in the server or the number of objects/entries in the Directory, too. So, our preference of platform, in general, is put OpenLDAP (Symas OpenLDAP) on what you’ve got!

Read the full article

Asterisk RealTime LDAP Driver Guide

AsteriskFedoraLinuxOpenLDAPOpen SourceSuretec W. Michael Petullo has published a very detailed article for Red Hat Magazine about using the Asterisk RealTime LDAP[?] Driver and Fedora Directory Server.

It's well written and a good read, but just so you know, OpenLDAP can easily be used and should have been the first choice as I'm sure our partners in crime Symas would point out too ;-)

But hey, it's a Red Hat Magazine so you can't blame them really...

Voice over Internet Protocol (VoIP) has emerged as a popular technology for modern voice communications. Many organizations have replaced their analog or proprietary digital telephone systems with VoIP-based solutions. This allows the consolidation of telephone services into an existing IP infrastructure. In addition, using IP to host voice services lets the organization leverage existing expertise–while retaining all of the network’s management advantages. Though not without its disadvantages, VoIP provides a compelling option to those looking for a telephone solution.

This article will present a simple VoIP solution using Asterisk, an open source private branch exchange (PBX) product. It will show you how to install Asterisk, configure it using its LDAP backend, and connect to it using the Ekiga software VoIP client and a Cisco 7900 Series VoIP telephone to make calls.

The first comment about the article is right though:

In general experienced users from the Asterisk community advise against purchasing Cisco phones for business deployment with Asterisk and recommend Polycom, Aastra or Snom instead. Cisco phones are very expensive, difficult to setup, technical documentation is not easily accessible for the end-user, their SIP firmware has some nasty surprises and as far as I know that cheap SmartNet contract is still quite difficult to get.

The LDIF Schema and normal LDAP schema are available in non-FDS format and are contributed to the Asterisk Project by Suretec and maintained by Suretec.



Flexi Time Manager Shortlisted for National Business Award

CatalystLinuxOpen SourcePerlPostgreSQLSuretec Flexi Time Manager "in the pink" after shortlisting for National Business Award

Entrepreneur Louise Wreathall has been shortlisted for the ‘Best Mumpreneur’ award at the National mother@work awards 2008. Louise, creator of Flexi Time Manager, which offers an online flexi time recording service, launched her business last year and has seen it go from strength to strength. She will attend a reception at 11 Downing Street on 18th June, where the winners will be announced.

Louise says, “Being shortlisted for this award means so much to me. Of course I’d be thrilled to win, but reaching the final stage itself shows that my work in getting the business where it is today has paid off.”

As a working mother who returned to work after a career break, Louise knows how important flexi time can be. Working in the HR department of a charitable organisation, she was responsible for administering a time consuming flexi time system for 30 staff, using scraps of paper and mental arithmetic to calculate hours worked. When staff numbers doubled, she knew something had to change, and set about creating an electronic timesheet system. By 2005, Louise had set up the business and set about trialling her own online time management system. With the help of Enterprise North East Trust, and local networks Women Into Business and Aberdeen Entrepreneurs, she learned the fundamentals of business management, finally launching the fully tested web application in November 2007.

Suretec designed and implemented the Flexi Time Manager Solution.

Running a business on desktop Linux

LinuxOpen Source
There is much more to cost equation than the up-front price you pay. Microsoft has done an outstanding job of hiding the true costs of its software from consumers. Linux eliminates these hidden costs from Windows:
Linux empowers you to run your business on low-cost computers that are deemed worthless within the distorted perspective of "Windows world." I'm writing this article, for example, on a Pentium III. It runs Ubuntu just fine, and it runs Puppy Linux fast as a scalded greyhound.

Original article

Spring 2008 - a UKUUG Conference Review

LinuxOpenLDAPOpen SourcePerlPostgreSQLSuretec I got back last night, after a somewhat hectic flight (long story).

I really enjoyed the conference, my first time speaking at one, bit nervous, but it can only get better ;-)


Continue reading "Spring 2008 - a UKUUG Conference Review"

Oracle Internet Directory and 2 Billion Entries?

LinuxOpenLDAP I've just finished reading The 2 billion entry directory tree - The scalability of Oracle Internet Directory at very large Directory Information Tree sizes, and thought I'd blog some initial thoughts (I'm sure our partners Symas will have something to say later).

The following is from the 2 Billion User Benchmark (Oracle Internet Directory - Technical Whitepaper (PDF) on the Oracle Internet Directory homepage.

So here's the Network kit they used:

Some pretty accessible kit there! ;-)
Continue reading "Oracle Internet Directory and 2 Billion Entries?"

OpenLDAP and LDAP Roundup - 29th Nov 2007

LinuxOpenLDAPSuretec Quite a few interesting articles and blog posts today.

Whenever I see a few good ones, I'll do one of these roundup posts.

Flexi Time Manager - A Cost Effective and Time Efficient Solution for SMEs to administer flexible working

CatalystDojoLinuxPerlPostgreSQLSuretec Flexi Time Manager is a web application that provides a cost effective and self-contained administration system for recording and calculating flexitime. Designed to help small and medium sized businesses introduce or extend flexible working for staff, the system can be accessed at a mere 54 pence per employee per week (£30 per employee, per year) and does not require specialist software or hardware, just an internet connection. Continue reading "Flexi Time Manager - A Cost Effective and Time Efficient Solution for SMEs to administer flexible working"