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.
Mozilla Thimble – Thimble makes it ridiculously simple to create your own web pages. Write and edit HTML and CSS right in your browser. Instantly preview your work. Then host and share your finished pages with a single click. Easy, huh?
Inventare e raccontare storie « vibrisse, bollettino – Queste diciassette lezioni sono state realizzate da Giulio Mozzi e Marco Zuin, nell’ambito del progetto Scuola d’Autore 2009/2010 dell’Istituto per la sperimentazione didattica ed educativa (Iprase) della Provincia di Trento.
Cisco Switch Command Reference – Several years ago I created my own Cisco switch and router basic config command references as word docs. However I find my info more useful on the Internet to find, and for anyone else to make use of.
Here is the switch related reference doc I created.
WYAE – Retired Firewall Tools – These tools were used to produce documentation from firewall configuration files. Sometimes necessity is no longer given (e.g. ReadConfig), sometimes I just moved on and have no more need to use the software myself.
The current firewall documentation system FWdoc is producing a vendor-indpendent intermediate file which then can be filtered and converted into numerous other formats. Please use FWdoc instead of these tools.
These are my links for 4 giu 2012 through 6 giu 2012:
http://www.wormnet.nl/cprules – CPRules.html contains the description of the main program, how to create the html output from the Check Point files and how to influence the output.
The program uses two supporting libraries and one supporting program. The first is specifically developed for this program to read and manipulate the Check Point databases in memory, called CheckPoint.pm. I hope to use this library for other projects involving Check Point FW-1 databases …
The other library, Template.pm, is used for creating the html pages from a template, giving more freedom in designing the web pages. The author of this module is Sam Tregar (email@example.com).
The supporting program CPUsers.pl is to convert the exported userfiles to a CheckPoint database format to be used by CPRules. CPUsers.html describes how it works.