bash

Bookmarks for 2 nov 2012 from 15:23 to 18:09

These are my links for 2 nov 2012 from 15:23 to 18:09:

  • USEFUL ONE-LINE SCRIPTS FOR SED – (Unix stream editor) Dec. 29, 2005
    Compiled by Eric Pement – pemente[at]northpark[dot]edu version 5.5
  • IBM devscan tool – United States – The devscan tool is a supplemental tool used by AIX support personnel to gather debugging data for Storage Area Networks. The package download includes a manual page that is also available on this site at the Usage tab.
  • mysqlreport :: Make easy-to-read MySQL status reports – mysqlreport makes a friendly report of important MySQL status values. mysqlreport transforms the values from SHOW STATUS into an easy-to-read report that provides an in-depth understanding of how well MySQL is running. mysqlreport is a better alternative (and practically the only alternative) to manually interpreting SHOW STATUS.
  • Percona Online Tools – Welcome to Percona's suite of productivity tools for MySQL database administrators and developers. One free account lets you access all of the tools below, and keeps you updated when new tools or enhancements are available. Registration is required.

    Optimize your MySQL Server:
    Leverage our expertise to create a good starting configuration for a MySQL server.
    This tool will walk you through all of the steps necessary to create a ready to use MySQL configuration file in about 5 minutes.

    Analyze an SQL Query:
    Find out when your SQL is potentially buggy, hard for MySQL to optimize, or confusing.
    This tool will analyze your SQL code and warn you when it detects problems that we've encountered while optimizing thousands of queries in real applications.

Bookmarks for 28 ago 2012 through 3 set 2012

These are my links for 28 ago 2012 through 3 set 2012:

  • Join di una macchina RHEL a un dominio Active Directory Windows e uso dei dischi condivisi dal dominio – Mia mamma usa Linux! – Questo documento descrive, in salsa cookbook, come realizzare il join di una macchina Red Hat Linux Server versione 6 ad un dominio Active Directory realizzato con Windows server 2003 o 2008.

    Segue una seconda parte che descrive come poter montare i dischi esposti da Windows ed usarli in scrittura e lettura.

  • Modern Perl – download ePub, HTML, Mobipocket – Perl.it – Modern Perl, scritto da chromatic è un libro sul linguaggio Perl adatto ai programmatori di tutti i livelli.

    Per chi si avvicina al linguaggio, il libro costituisce una introduzione a Perl aggiornata e moderna, che permette di prendere confidenza con il linguaggio utilizzandone gli strumenti e le metodologie sviluppate negli ultimi anni.

    Per il programmatore più esperto, Modern Perl costituisce un ideale aggiornamento su tutto quanto è stato introdotto con perl 5.12 e 5.14.

    Consulta oppure scarica il libro

  • TCP Port Scanner in Bash – good coders code, great reuse – I just had this quick idea to write a tcp port scanner in bash. Bash supports the special /dev/tcp/host/port file that you can read/write. Writing to this special file makes bash open a tcp connection to host:port. If writing to the port succeeds, the port is open, else the port is closed.

    [ Geeeeeeeeeeeeeeeeeeeeeeek 😀 ]

Bookmarks for 25 lug 2012 from 14:52 to 15:47

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:
    consistent
    fast
    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.
  • MIME and HTML in Email – How to encapsulate HTML in an email message and send via sendmail

Bookmarks for 9 dic 2011 through 13 dic 2011

These are my links for 9 dic 2011 through 13 dic 2011:

  • BAT file tips | Alex @ Net – Let's play with BAT files a little. As you may know, BAT files are intended to be run and processed by the MS command processor, named cmd.exe, and the programming language they are created with is very close to BASIC. The early versions of the BAT-files language (which comes from famous Windows ancestor, MS-DOS) were very limited. Nowadays it has more features and a few days ago I created a small collection of interesting tricks, related to BAT file programming. You can check the following examples that demonstrate which execution flow controlling statements BAT-file language has and show their analogs in PHP.
  • 10 Tools To Add Some Spice To Your UNIX Shell Scripts – here are some misconceptions that shell scripts are only for a CLI environment. You can easily use various tools to write GUI and/or network (socket) scripts under KDE or Gnome desktops. Shell scripts can make use of some of the GUI widget (menus, warning boxs, progress bars etc). You can always control the final output, cursor position on screen, various output effects, and so on. With the following tools you can build powerful, interactive, user friendly UNIX / Linux bash shell scripts.
  • Nagios plugin for ASE – SybaseWiki – When you are using Nagios (http://www.nagios.org) as a monitoring tool, it's real easy to implement your own checks for Sybase servers. Here's a sample check to see if your ASE server is up and connectable.

Bookmarks for 23 nov 2011 through 30 nov 2011

These are my links for 23 nov 2011 through 30 nov 2011:

  • BILL – Bill strives to be a solution for developing applications which can be run on platforms with limited resources (e.g. embedded systems) on top of the GNU Bash shell, with a focus on quality and reusability of shell code.
  • Check_whois – Use this plugin with Nagios to be notified when a domain is about to expire.
  • TIP: Debug squid ACL matches – The FreeBSD Forums – For tricky squid ACL troubleshooting situations, it is helpful to be able to see which access control entries a request matches and does not match. This information can be discovered easily using squid's debugging facility.

Bookmarks for 26 set 2011 through 30 set 2011

These are my links for 26 set 2011 through 30 set 2011:

  • VPN Debugging notes –
  • Open Vim – Collection of Vim learning tools

    [via http://www.delicious.com/farmando ]

  • Bash Socket Programming | HACKTUX – You can connect to a socket using Bash by using exec and redirecting to and from the pseudo-path /dev/tcp/<hostname>/<port> or /dev/udp/<hostname>/<port>. For instance, to connect to your localhost SSH port using TCP

    [Oppure potrei darmi una martellata sulle balle in mancanza d'altro]

Bookmarks for 26 lug 2011 through 5 ago 2011

These are my links for 26 lug 2011 through 5 ago 2011:

Bookmarks for 10 mag 2011 through 12 mag 2011

These are my links for 10 mag 2011 through 12 mag 2011:

  • ostinato – Packet/Traffic Generator and Analyzer – Google Project Hosting – Ostinato is an open-source, cross-platform network packet crafter/traffic generator and analyzer with a friendly GUI. Craft and send packets of several streams with different protocols at different rates. For the full feature list see below.<br />
    Ostinato aims to be "Wireshark in Reverse" and become complementary to Wireshark.
  • BashPitfalls – Greg’s Wiki – This page shows common errors that Bash programmers make.
  • Wiki structure for AIX documentation – Summary:  This article provides a structure, configuration, and methodology for building and maintaining an automated wiki server for your AIX technical documentation. One of the most difficult tasks associated with system administration is maintaining a centralized documentation repository and enforcing standards for documentation in the repository. The wiki environment helps to create a standardized look-and-feel for your documentation repository and provides an easy to maintain environment for all contributors to the repository.

Bookmarks for 9 mag 2011 through 10 mag 2011

These are my links for 9 mag 2011 through 10 mag 2011:

  • Unix shell scripting with ksh/bash – The goals of this class are to enable you to:<br />
    <br />
    Learn what kinds of problems are suited to shell scripts<br />
    Review the most commonly used Unix commands that are useful in shell scripts.<br />
    Write simple shell scripts using the Bourne, Korn or Bash shells<br />
    These notes are intended for use in a 2-part class, total duration 3 hours[…]
  • Cool, but obscure unix tools :: KKovacs – Just a list of 20 (now 24) little-known tools for the command line — I hope you find something useful that you weren't aware of yet! Use your operating system's package manager to install most of them. (Thanks for the tips, everybody!)<br />
    <br />
    [ via Bru Aggregator ]
  • Securing your Linux vsftp installations by locking down your server and chroot()’ing users – […]I’ve been using vsftpd for quite some time, and it has one of the best security track records of the various FTP server implementations. When I’m forced to use FTP, I always install vsftp and perform a number of actions to lock down my FTP server installation. […]

Bookmarks for 27 apr 2011 through 28 apr 2011

These are my links for 27 apr 2011 through 28 apr 2011:

  • Yes, You Can Run 18 Static Sites on a 64MB Link-1 VPS – Low … – […] So, just trying to prove the point that yes, 64MB is more than enough to host 18 static sites, I decided to add a Link-1 Xen to my account and document the process […]<br />
    <br />
    Yeah!
  • Advanced Nmap – […] Tonight I wanted to share some Nmap stuff that I’ve been using lately or am getting ready to start using […]<br />
    <br />
    [via http://www.bufferoverflow.it]
  • logrotate in bash – logrotate is a bash script which can rotate log files and multilog log directories and archive them in a central location.logrotate requires GNU bash, GNU gzip and GNU date.