These are my links for 29 nov 2012 from 15:24 to 16:55:
PowerShell Commands (CMDLETs) for Active Directory by Quest – The ActiveRoles Management Shell for Active Directory is a set of free, predefined commands for Windows PowerShell, the powerful command line and scripting language developed by Microsoft. These commands are designed to help administrators automate common, repetitive and bulk management tasks for Active Directory, such as creating, removing or updating objects in AD.
ksh_timer – An interface to evaluate function execution time in shell script in each function or in user-defined sections
Summary: ksh_timer helps ksh script developers or administrators to find out quickly and with minimal change in their script, what functions or user-defined sections are time consuming. By default, ksh_timer will time the overall script and each function defined and used in the script. Users can define additional sections of the scripts they need to be timed.
These are my links for 25 lug 2012 from 14:52 to 15:47:
Disaster: LVM Performance in Snapshot Mode – MySQL Performance Blog – In many cases I speculate how things should work based on what they do and in number of cases this lead me forming too good impression about technology and when running in completely unanticipated bug or performance bottleneck. This is exactly the case with LVM
Number of customers have reported the LVM gives very high penalty when snapshots are enabled (leave along if you try to run backup at this time) and so I decided to look into it.
Netexpertise » Mysql Ultra-Fast Backup with LVM – It is generally good practice to respect the two following points when backing up databases. The backup has to be:
Consistency is easily achieved putting a read lock on all tables beforehands. However, this isn’t always applied, and WILL definately lead to a database integrity problem at some stage.
Once a lock has been set on the database, the backup has to be as quick as possible, all write instructions being held in the queue.
These are my links for 10 giu 2012 through 15 giu 2012:
Backup automatizzato dei database su SQL Express – SQL Server Express viene distribuito senza SQL Agent, quindi non è possibile schedulare internamente a SQL Server processi automatizzati, come ad esempio il backup. E’ però possibile aggirare questo ostacolo creando uno script ad-hoc, che si occupi dei vari job che vogliamo eseguire.
PacketFence: Open Source NAC (Network Access Control) – PacketFence is a fully supported, trusted, Free and Open Source network access control (NAC) solution. Boasting an impressive feature set including a captive-portal for registration and remediation, centralized wired and wireless management, powerful guest management options, 802.1X support, layer-2 isolation of problematic devices; PacketFence can be used to effectively secure networks small to very large heterogeneous networks.
teambox/teambox · GitHub – Open-source project collaboration software, available online for free. Inspired by Basecamp, Yammer, Twitter.
These are my links for 5 gen 2012 through 25 gen 2012:
MySQL permissions for backup | OpenConcept Mobile Site – It's a really good idea to use a least-privilege approach to most system administration tasks, and especially automated ones. This post describes using a "read only" MySQL user to handle backing up MySQL databases.
We use mysqldump to backup our databases on a regular basis, using scripts like this one
Tiki is free, both Free Software (as in "Free Speech") and Free of Charge (as in "Free Beer"), and for everyone! It has all the features you need "out-of-the-box":
Wikis (like Wikipedia)
Forums (like phpBB)
Blogs (like WordPress)
Articles (like Yahoo News)
Image Gallery (like Flickr)
Map Server (like Google Maps)
Link Directory (like DMOZ)
Multilingual (like Babel Fish)
Bug Tracker (like Bugzilla)
RSS Feeds (like Digg)
Free Open Source software (LGPL)
[ via http://www.gpaterno.com/2011/12/23/create-a-secure-intranetextranet-with-tikiwiki-and-securepass/ ]
Create a secure intranet/extranet with TikiWiki and SecurePass – Giuseppe Paternò – [...]
In this market segment, there’s still a need for a secure corporate intranet with the need to exchange private information and files. Collaborative places, such as wikis, are perfect solutions to quickly achieve this goal without spending a fortune. I found TikiWiki (http://www.tiki.org/) to suit best in these environments: while extremely easy to use for an end-user through WYSYWIG editor, the complex permission system allow you to set each page access or even show/hide part of the page to a given group of users, which is unique if compared to other solutions