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August 2009
June 2009
March 2009
Audit Logging at Service Level
by Elryk
Système d'audit et de logs utilisant les mécanismes d'AOP et les intercepteurs Spring.
Sponsorised links
February 2009
Woopra - Website Tracking and Analytics
by rmaltete
& 7 others
Woopra is the world's most comprehensive, information rich, easy to use, real-time Web tracking and analysis application. And it's free! Learn more...
December 2008
severalnines.com
by camel
(via)
CMON is a daemon that aggregates information from MySQL Cluster that earlier was only accessible from the cluster log or the management client, such as:
* cluster state
* node state
* backup statistics
* statistics
* cluster events (cluster log basically)
.. and let's you access the information using SQL, because CMON logs the information into ordinary MYISAM tables! So, it is really easy to use! In the package you also get get php scripts that you can put on your webserver to generate graphs and get a www interface to CMON. CMON can also start ndbd nodes and make decisions on how they should be started (with or without --initial).
CMON starts as a daemon and will automatically create cmon database and install the necessary tables automatically.
MPY SVN STATS
by rike_
& 3 others
(via)
I've searched the web quite a bit for a good log analysis tool for Subversion and didn't find any good project.
Since we use Subversion where I work I wanted to see who made most commits, who changed how many lines and get some nice looking graphs that would show progress in the project.
Then I realised that svn --xml -v log returns XML, which is really easy to parse.
November 2008
linuxwave: Using gnu screen
by camel
(via)
Screen is a full-screen window manager that multiplexes a physical terminal between several processes. In short, you can have a few virtual terminal by using only one physical terminal. Screen is useful when you are accessing servers remotely, or running jobs on the background. When you want to run jobs on the background, it is very useful to run it inside one screen so that you can detached it, and simply log out without worry. Below are a few useful command to be used with screen to get you started.
Linux.com :: Parallel SSH execution and a single shell to control them all
by camel
(via)
Many people use SSH to log in to remote machines, copy files around, and perform general system administration. If you want to increase your productivity with SSH, you can try a tool that lets you run commands on more than one remote machine at the same time. Parallel ssh, Cluster SSH, and ClusterIt let you specify commands in a single terminal window and send them to a collection of remote machines where they can be executed.
Why you would need a utility like this when, using openSSH, you can create a file containing your commands and use a bash for loop to run it on a list of remote hosts, one at a time? One advantage of a parallel SSH utility is that commands can be run on several hosts at the same time. For a short-running task this might not matter much, but if a task needs an hour to complete and you need to run it on 20 hosts, parallel execution beats serial by a mile. Also, if you want to interactively edit the same file on multiple machines, it might be quicker to use a parallel SSH utility and edit the file on all nodes with vi rather than concoct a script to do the same edit.
Many of these parallel SSH tools include support for copying to many hosts at once (a parallel version of scp) or using rsync on a collection of hosts at once. Because the parallel SSH implementations know about all the hosts in a group, some of them also offer the ability to execute a command "on one host" and will work out which host to pick using load balancing. Finally, some parallel SSH projects let you use barriers so that you can execute a collection of commands and explicitly have each node in the group wait until all the nodes have completed a stage before moving on to the next stage of processing.
October 2008
Howto: ISP-style Email Server with Debian-Etch and Postfix 2.3
by camel
(via)
The configuration described here is not very complicated but still needs to be done carefully. You are expected to have at least basic knowledge of:
* MySQL (creating a database, granting access to users, basic SQL queries)
* SMTP (what it is and what a basic SMTP dialog looks like)
* POP3, IMAP (what they do and what the differences are)
* basic Postfix configuration (understand the default settings in your main.cf, have read through the basic configuration document and know that your mail log file is at /var/log/mail.log)
* Debian/Linux (general system administration, using a text editor, reading log files)
Steve.org.uk - asql - Apache SQL querying
by camel
& 1 other
asql is a simple console shell which allows you to run SQL queries against an Apache logfile, something that can be very useful - especially at getting information which is not easily available via static logfile analysers.
Dotdeb » Blog Archive » Calculate statistics from your Qmail logfiles using Awstats
by camel
Awstats is a commonly used program to calculate web statistics from your webserver logfiles. It can detect useragents, referers, unique visitors… But one of its another feature is to build usage reports from your mail server’s logfiles, as seen on this demo.
Here is how to quickly configure Awstats to take profit of your Qmail log files…
September 2008
apache-scalp - Google Code
by camel
& 2 others
(via)
Scalp! est un analyseur de logs Apache qui sert dans la recherche de problèmes de sécurité et de tentatives d'intrusions, il est basé sur des requêtes du même style que celles du utilisées dans le projet PHP-IDS
August 2008
IE WebDeveloper - DOM Inspector, Script Console, Logging messages and HTTP Monitor
by camel
IE WebDeveloper is an add-on for Microsoft Internet Explorer. The rich web debugging toolset allows you to inspect and edit the live HTML DOM and current cascaded styles, evaluate expressions and display error messages, log messages, explore source code of webpage and monitor DHTML Event and HTTP Traffic.
July 2008
June 2008
Splunk > Download Splunk 3.2
by camel
Splunk is IT Search. Search, navigate, alert and report on all your IT data in real time. Logs, configurations, messages, traps and alerts, script, code, metrics and more. If a machine can generate it -- Splunk can eat it.
wtop - Google Code
by camel
& 1 other
wtop is really cool application for web server log analysis and to see server stats at a glance. It also has powerful log grepping capability. It is just like 'top' for your webserver.
It can find out number of searches or signups per seconds. It can also create histogram of response time. There is also another tool called logrep a powerful command-line program for ad-hoc analysis and filtering for log files. You can dig up lots of information using wtop tools.
Multitail, le tail ultime ?
by camel
C’est en parcourant le dernier numéro hors série de Linux Magazine que je suis tombé sur un article sur un outil qui peut changer la vie des administrateurs systèmes. Cet outil s’appelle Multitail et est présenté par son concepteur (Folker Van Heusden) comme un “tail sur stéroides”.
Comme moi, vous devez avoir en permancence plusieurs “tail -f” lancée en // pour surveiller les logs de vos serveurs. Multitail propose de réunir toutes ces informations dans une seule et même fenêtre.
May 2008
April 2008
Logmonster FAQ - The Network People, Inc.
by camel
Typical Scenario: You have a web server that serves your domain. You write a simple script to restart apache each night and pipe the logs off to your analyzer. It works.
ISP/Hosting Scenario: Each server hosts many domains. You may also have load balanced servers (multiple machines) serving each domain. A tool like this is necessary to:
1. collect all the log files from each server
2. split the logs based on the virtual host(s)
3. discard invalid entries (phishing, referrer spam, etc)
4. sort them into chronological order
5. feed logs into analyzer
6. do something with the raw logs (compress, save to vhost dir, etc)
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