X-Git-Url: https://codewiz.org/gitweb?p=wiki.git;a=blobdiff_plain;f=SystemAdministratorRole;h=f5c72f123cbefead1eadbdfce81c82aa6d5e52a0;hp=3590dd8ac426fbd9e9d8ccec99a18033f4d8688d;hb=88c16232ad542e8ca27d1816c238550424d2a2bd;hpb=88bdcc939c632201f5a0fb386a8518f78264268c diff --git a/SystemAdministratorRole b/SystemAdministratorRole index 3590dd8..f5c72f1 100644 --- a/SystemAdministratorRole +++ b/SystemAdministratorRole @@ -1,35 +1,37 @@ === One is glad to be of service === -I've been taking care of big iron since my first job as -an EmployedWorker and in the '90s I've been providing free, -but commercial quality, telecommunication service to a total -of 450 registered users with my own BullettinBoardSystem -called SystemShockBbs. +I've been taking care of boxes since my first job as an +EmployedWorker and in the '90s I've been providing free +telecommunication service to a total of 450 registered +users with my own BullettinBoardSystem called [[SystemShockBBS]]. -I've been using many different OSes, see SystemArchitectRole -for a list. +I've been using a wide variety of different OSes, see +SystemArchitectRole for a list. === Production systems === I've designed and helped implementing the following production systems, all of which are still in service: - * '''DevelerCompany's IT infrastructure''' - Leveraging - my earlier work for SiriusCompany, for over 6 years I've - been continuously growing and restructuring the network, - the servers and their intricate mesh of services and - support scripts. The main server, called {{trinity}}, - contains 1TB of storage and offers file storage, user - authentication, e-mail, and many web-based services to a - highly heterogeneous and complex environment comprising - several versions of Linux, MacOsX and Windows clients. - Another server, called {{asterisk}}, acts as a VoIP PBX - and secondary slave for many (but not all) of {{trinity}}'s - services. - - * '''http://www.fieremostre.it/''' - A cluster of 4 RedHat - servers, two web frontends and Java appservers and two - database and filesystem backends with hw SCSI RAID5. + * **SugarLabs**'s Internet infrastructure -- I'm coordinator + of the [[http://sugarlabs.org/go/InfrastructureTeam | Infrastructure Team]], + taking care of 8 machines hosted at variois locations and running + development and support services for a large community. + + * **DevelerCompany's IT infrastructure** - For over 6 + years I've been continuously growing and restructuring + the network, the servers and their intricate mesh of + services and support scripts. The main server, called + ##trinity##, contains 1TB of storage and offers file storage, + user authentication, e-mail, and many web-based services to a + highly heterogeneous and complex environment comprising several + versions of Linux, MacOsX and Windows clients. Additional servers + act as VoIP PBX and secondary slave for many (but not all) of + ##trinity##'s services. + + * ** http://www.fieremostre.it/ ** - A cluster of 4 RedHat + servers, two web front-ends and Java appservers and two + database and filesystem back-ends with SCSI RAID5. Fully managed remotely, including power fencing and robotized tape juggler. @@ -39,7 +41,7 @@ production systems, all of which are still in service: to implement a shared storage pool of 1.5TB with GFS1. The system initially went to production without the GFS pool because of reliability concerns with this new - technlogy. + technology. * '''Genexpress Lab''' - A combo of two servers, each acting as a gateway and file server for a security ring. @@ -47,16 +49,16 @@ production systems, all of which are still in service: of the University of Firenze, in Prato's Scientific Center. My philosophy is using mainstream hardware whenever possible -and concentrate most services on few phisical systems. +and concentrate most services on few physical systems. The savings in cost can be used to increase availability and performance through redundancy. This strategy leads to -datacenters that are easy to understand and maintain, while +data-centers that are easy to understand and maintain, while at the same time scaling up much better than traditional asymmetrical solutions (like web server, mail server, db server...). -Being fond of UNIX culture, I tend to keep my systems as -open as possible and at the same time very secure. +Being particularly fond of the UNIX culture, I tend to keep +my systems as open as possible while at the same time very secure. -TODO: add a list of server software I use/know +TODO: add a list of server software I use/know