prgaelo的部落格

As we started the jut out over of our web site, we knew that the copyrighted software costs would be too large for our pecuniary assets. Our only likelihood later was to generate use of Open Source Code softwares.

However, within the Open Source Code in attendance are lashings of softwares to settle on from, and it´s up to the set of contacts expert/programmer to harvest the ones that greatest case the extend beyond goals.

In our case, we picked Linux as our in operation policy. However we baby-faced a big question: Which Linux circulation ? There are large indefinite amount of unix distributions, respectively one next to particularized advantages, sometimes with or minus stipendiary services.

We chose linux Slackware because we meditation that it would become higher our needs, in terms of stability and accuracy. Slackware is a ultraconservative distribution, meaning that it lone offers in its distribution bundle meat versions and ordinal organization libraries, sometime it´s been proven to be solid and steady. As a result, Slackware is one the supreme solid Linux in operation association on the souk. If the soul wishes the maximum new Linux kernel and libraries, we urge to gawk for a divers system.

Another rational motive for us output Slackware, was because of its article interface, which at the instigation may turn a bit difficult, in the long-life run nevertheless it offers a finer reading of the Linux environment. This way supreme of Slackware configurations are done through text scripts.

Once it was set the operational system, we picked Apache as our web dining-room attendant. Apache is one of the best undemanding web dining-room attendant in the cyberspace. For dining-room attendant programing language, we chose PHP. Also, a vastly touristy scheduling communication. Our suffer with Apache/PHP proves that this setup is highly reliable, in a job utterly well in our industry state of affairs. For workstation programming language, we chose javascript, which besides of having a straightforward syntax, it offers lots of equipment.

Apache web restaurant attendant is really a all web waiter. Also, it can get hugely labyrinthine near galore pattern setups.

For our database, we picked Postgresql. This database has been ready-made purchasable to the community for more than 15 years, and in any case of mortal in good health debugged, it offers so tons materials that it has turn one of the first-class database options from Open Source Code softwares. Extremely reliable, Postgresql has reported cases where nearby have been databases in productivity beside terminated 4 terabytes. Besides all of that, Postresql is not the record fashionable Open Source Code database. A event of merchandising ? Probably.

As for the programming expressions PHP, we had to use an intent homeward-bound submission composition. There are galore PHP application structures existence offered beside Open Source Code instrument. Object homeward-bound standing is extremely important, because it makes programming really effortless and climbable up to the thorn where on earth the regulations may bud short many an teething troubles. Also, it helps to sustenance PHP opinion separate from HTML, next to the aid of quite a lot of specific libraries, such as as Smarty. We cause use of Smarty library and we judge that it is a massively valuable resource, which can even kind web pages quicker done the use of its storage space functions.

Also a greatly all important set of libraries worthy mentioning for PHP systems, is the PEAR libraries. In PEAR web site, among the several libraries self offered, in attendance are the database surface DB and the MAIL_QUEUE, which sends emails through with the use of information.

As we came to the end of our project, we had to use numerous category of tangible circumstance information reproduction. For that we chose the DRBD and Heartbeat libraries. The use of database copying is immensely essential and should not be postponed. Just after 3 months our rules got into production, our restaurant attendant rough disc became bad. Thru the use of DRBD/Heartbeat we were able to put the scheme hindmost into manufacture inside seconds, lacking losing any information. DRBD/Heartbeat replication is done through the use of a lan make friends linking the dining-room attendant and slave nodes.

Our labor as well makes use of ImageMagick (enlarge and drain similes), Iptables (firewall), Tsearch2(text turn out in portgresql) and Mon (linux observation tasks).

Also a vastly burning library meriting mentioning is the pseudo APC writer for PHP. Speed is always a sarcastic factor for cyberspace sites.

Our web parcel of land is but in amount produced and based upon our undertake we can say that the Open Source Code softwares we picked, tested to be awfully steadfast and solid. Open Source Code softwares can sure be an exceptional selection for developing web sites.

Roberto Sedycias
IT Consultant

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