security

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 24 lug 2012 from 17:16 to 17:32

These are my links for 24 lug 2012 from 17:16 to 17:32:

  • Five Tips for a Better sendmail Configuration – O’Reilly Media – Unix vendors bundle sendmail with the operating system and ship it out preconfigured. It is very easy to install the OS and use the sendmail configuration delivered with the system. Don't be fooled by this apparent simplicity. In the long run, it is better to take charge of your fate. Creating a custom sendmail configuration using current software and features selected for your environment will give you better performance, reliability, security, and maintainability. Here are some tips to get you started on building a better sendmail configuration.
  • Epoch Converter – Unix Timestamp Converter – Epoch & Unix Timestamp Conversion Tools
  • mylvmbackup – mylvmbackup is a tool for quickly creating backups of a MySQL server's data files. To perform a backup, mylvmbackup obtains a read lock on all tables and flushes all server caches to disk, creates a snapshot of the volume containing the MySQL data directory, and unlocks the tables again. The snapshot process takes only a small amount of time. When it is done, the server can continue normal operations, while the actual file backup proceeds.

Bookmarks for 24 lug 2012 from 12:40 to 14:51

These are my links for 24 lug 2012 from 12:40 to 14:51:

  • Centrale di Mobilità – Muoviti responsabilmente senza pesare sull'ambiente
  • www.vanheusden.com – AIX tips & tricks – AIX tips & tricks

    (like: "Finding physical location of a disk" or why "AIX NFS server refuses client to mount share" and many other)

  • Account Administration – disciplinux – Change AIX password non-interactively

        Use the chpasswd utility to change the password.

  • Tightening Default AIX Sendmail – disciplinux – I started looking at the default AIX configuration of sendmail for the SMTP Open Relay issues. Previously I had sent a configuration change to
    allow only specific relay-domains. However, it appears that the default sendmail configuration sets "PROMISCUOUS_RELAY" which overrides the
    RELAY-DOMAINS directive.
  • Configure sendmail to start logging Subject in maillog | www.linux4beginners.info – In this article we will learn how to configure sendmail so that you can log "Subject" in /var/log/maillog as by default sendmail does not log Subject to maillog file.

    This is really interesting. Business people many times are interested in getting mail log files analyzed. To analyse mail logs they need various field to appera in mail logs. e.g. "From", "To", "Subject" etc from the sent email. By default sendmail logs From and To fields but it does not log Subject field. In this article you will learn how to enable sendmail to log "Subject".

Bookmarks for 5 lug 2012 through 6 lug 2012

These are my links for 5 lug 2012 through 6 lug 2012:

  • NetHogs: What program is using that bandwidth? – NetHogs is a small 'net top' tool. Instead of breaking the traffic down per protocol or per subnet, like most tools do, it groups bandwidth by process. NetHogs does not rely on a special kernel module to be loaded. If there's suddenly a lot of network traffic, you can fire up NetHogs and immediately see which PID is causing this. This makes it easy to indentify programs that have gone wild and are suddenly taking up your bandwidth.

    [ via http://www.zarrelli.org/ ]

  • LiveUSB image with OpenBSD – carry your OS on a memory stick – It is trivial to a create a bootable USB stick with OpenBSD. I wanted to create one and realized that this will be of general use for anyone who likes a UNIX USB memory stick that they can carry with them on a keychain.

    If you wish to have LiveCD/LiveDVD instead, please refer to our other LiveCD-OpenBSD project on sourceforge!

    This USB image shall not touch your hard disk in any way. All the operations are done in the USB stick and main memory. Nothing will be written to your MBR or boot loaders!

  • Jon Hart’s Blog: OpenBSD on Soekris — A Cheater’s Guide – Below are the steps I recently used to get my NET4801 running OpenBSD 4.2 -current. The difference here is that I use qemu to make use of the considerably faster CPU on my desktop to breeze through the install and initial configuration.

Bookmarks for 28 giu 2012 from 11:04 to 15:16

These are my links for 28 giu 2012 from 11:04 to 15:16:

Bookmarks for 10 giu 2012 through 15 giu 2012

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.

Bookmarks for 4 giu 2012 through 6 giu 2012

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 protected]).

    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.

  • How To Calculate Bandwidth Utilization Using SNMP  [IP Application Services] – Cisco Systems – This document describes how to calculate bandwidth use with Simple Network Management Protocol (SNMP).
  • Long range WiFi antenna from Illy coffee can | John Graham-Cumming – I have a stack of half finished projects that I'm trying to complete. Happily, the first one was finished late last night: a long range WiFi antenna made using an empty coffee can. Working from the ideas here I made an antenna from the following:

    1. An empty 250g Illy Espresso ground coffee can

    2. A Type N bulkhead socket and a Type N plug

    3. A piece of WiFi antenna extension cable with a reverse SMA connector on the end.

    4. A short piece of coat hanger for the active element of the antenna

Bookmarks for 28 mag 2012 through 2 giu 2012

These are my links for 28 mag 2012 through 2 giu 2012:

Bookmarks for 17 mag 2012 through 18 mag 2012

These are my links for 17 mag 2012 through 18 mag 2012:

  • vikjon’s Linux and Media Center Howto: NSClient++ external vbs script to check MSSQL jobs – This script for NSClient++ checks if there is any failed jobs in MS SQL server. The database connection data is stored in a UDL file.
  • Mobile-OTP: Strong Two-Factor Authentication with Mobile Phones – Mobile One Time Passwords (Mobile-OTP)
    strong, two-factor authentication with mobile phones

    Using static passwords for authentication, as it is commonly done, has quite a few security drawbacks: passwords can be guessed, forgotten, written down and stolen, eavesdropped or deliberately being told to other people.
    A better, more secure way of authentication is the so called "two-factor" or "strong authentication" based on one time passwords. Instead of authenticating with a simple password, each user carries a device ("token") to generate passwords that are valid only one time.

    client for: Standard phone and BlackBerry (J2ME) iPhone Google Android Windows Phone 7 PalmOS webOS Maemo Openmoko Universal Web App Windows Linux MacOS

    Server-Side:
    Mobile-OTP Authentication Server (MOTP-AS)
    Full blown RADIUS server specifically for Mobile-OTP. include:
    – authenticating users by RADIUS (and optionally PAM or Apache)
    – SQL database for user/device configuration
    – Administration Web Interface

  • Open Monitoring Distribution – Wiki – OMD – Welcome to OMD – the Open Monitoring Distribution. OMD implements a completely new concept of how to install, maintain and update a monitoring system built on Nagios.

    OMD avoids the tedious work of manually compiling and integrating Nagios addons while at the same time avoiding the problems of pre-packaged installations coming with your Linux distribution, which are most times outdated and provide no regular updates.

    OMD bundles Nagios together with many important addons and can easily be installed on every major Linux distribution. We provide prebuilt packages for all enterprise Linux distributions and also for some other, such as Ubuntu 11.04.

Bookmarks for 10 mag 2012 through 11 mag 2012

These are my links for 10 mag 2012 through 11 mag 2012:

  • Linux Malware Detect | R-fx Networks – Linux Malware Detect (LMD) is a malware scanner for Linux released under the GNU GPLv2 license, that is designed around the threats faced in shared hosted environments. It uses threat data from network edge intrusion detection systems to extract malware that is actively being used in attacks and generates signatures for detection. In addition, threat data is also derived from user submissions with the LMD checkout feature and from malware community resources. The signatures that LMD uses are MD5 file hashes and HEX pattern matches, they are also easily exported to any number of detection tools such as ClamAV.
  • Shinken | The next Industry Standard in IT Monitoring – Shinken is an open source Nagios® like tool, redesigned and rewritten from scratch. Its main goal is to meet today’s system monitoring requirements while still allowing compatibility to Nagios®
  • Index of /downloads/binaries/latest – These binaries are statically linked using http://landley.net/aboriginal