hack

Bookmarks for 21 set 2015 through 24 set 2015

These are my links for 21 set 2015 through 24 set 2015:

  • IOWait. (Sysadmin’s bedtime horror story) – […] hope this helps someone out there. The last 3 days, I have had my server crash on me every 2-3 hours. At first I thought it would be a spike in the traffic, since I couldn’t find any crash reports from Apache, and there was a spike in the traffic at this time. So I increased the resources on the server. It crashed again, every 2-3 hours […] It wasn't my case but… who knows in the future?
  • Apache mod_deflate and mod_cache issues | Devon Hillard’s Digital Sanctuary – The Problem: Using Apache mod_deflate and mod_disk_cache (or other mod_cache) together can create far too many cached files. The Background: Apache is a web server with many different modules you can load in to enhance it. Two common ones are mod_deflate and mod_cache (or mod_disk_cache).
  • haskellcamargo/skype-unofficial-client · GitHub – (unofficial) Skype client built on top of node webkit [ via http://www.lffl.org/2015/09/skype-web-client-linux.html ]
  • dfletcher/tsws · GitHub – TSWS, A Totally Simple Web Server
  • Home | Lattice – Lattice aspires to make clustering containers easy. Lattice includes a cluster scheduler, http load balancing, log aggregation and health management. Lattice containers can be long running or temporary tasks which get dynamically scaled and balanced across a cluster. Lattice packages components from Cloud Foundry to provide a cloud native platform for individual developers and small teams.

Bookmarks for 30 mar 2015 through 31 mar 2015

These are my links for 30 mar 2015 through 31 mar 2015:

  • 5 easy tips to accelerate SSL – Unhandled expression – SSL is slow. These cryptographic algorithms eat the CPU, there is too much traffic, it is too hard to deploy correctly. SSL is slow. Isn’t it? HELL NO! SSL looks slow, because you did not even try to optimize it! For that matter, I could say that HTTP is too verbose, XML web services are verbose too, and all this traffic makes the website slow. But, SSL can be optimized, as well as everything!
  • Cybrary – Free Online IT and Cyber Security Training, Forever! – Cybrary is a free and open source, online information technology (IT) and cyber security training environment for the world. We are dedicated to keeping the world’s IT professionals prepared for this ever changing industry and its technologies. You can learn almost anything IT and security related for free, and you can help others to do the same. Take a look at what you can learn: Systems Administration Network Administration Cyber Security Our free IT training classes include everything from industry certifications such as Certified Ethical Hacker, CISSP and CCNA to advanced niche skill sets like advanced penetration testing and cloud administration. Our training includes instructional lectures, interactive lab demonstrations, exam study guides, white papers, case studies and more. [ via https://delicious.com/farmando]
  • Exploit Exercises – exploit-exercises.com provides a variety of virtual machines, documentation and challenges that can be used to learn about a variety of computer security issues such as privilege escalation, vulnerability analysis, exploit development, debugging, reverse engineering, and general cyber security issues. [ via https://delicious.com/farmando ]

Bookmarks for 22 giu 2014 through 23 giu 2014

These are my links for 22 giu 2014 through 23 giu 2014:

Bookmarks for 30 apr 2014 through 6 mag 2014

These are my links for 30 apr 2014 through 6 mag 2014:

  • Ralentir le débit de postfix pour wanadoo/orange – Le blog de Michauko – Si vous avez un serveur d’envoi de mails (je ne parle pas d’être un spammeur) et beaucoup d’abonnés chez Wanadoo et Orange, vous risquez fort le rejet temporaire de votre serveur si le débit d’envoi est trop fort. C’est ce qui m’est arrivé et hop, 5000 mails entassés dans la file de postfix.
  • smtp-in.orange.fr refused to talk to me: postfix solution | floriancrouzat.net – Orange sadly limits inbound connexion to it’s MX to 1 connexion per IP, which is a total pain in the ass when you try to deliver newsletter, or manage a MTA. Here is a sample log from their MX: Jul 4 10:42:42 smtp.example.com postfix/smtp[32347]: 0123456789: host smtp-in.orange.fr[193.252.22.65] refused to talk to me: 421 mwinf5c34 ME Trop de connexions, veuillez verifier votre configuration. Too many connections, slow down. OFR004_104 [104] However, since they won’t change anything, we have to take mesures, here’s what you can do if you run postfix: you have to set a per-destination concurrency limit.
  • Aral Balkan: Historical Archive — How to revert (roll back) to a previous revision with Subversion – Here, then, is a very simple, plain English explanation of how to revert to a previous version of your application in Subversion, to help anyone who may be starting out with it and is lost.
  • Tmux: A Simple Start – In all likelihood, you’ve probably already heard of tmux. However, you may not be using it everyday. If tmux is on your “Someday” list because you think it is too complicated (I mean, c’mon, the word “multiplexer” is just plain scary), then I am here to show you just how easy it is to put tmux into your workflow.
  • Tyblog | Yet Another Vim Setup – Vim is an excellent text editor. I’ve used it for many years and like most vim users, have collected a fairly large collection of settings in my .vimrc and learned how to grok my vim usage effectively through a lot of trial and error. To that end, I’ve tried to assemble a useful overview of my experience with vim.

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 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 13 feb 2012 through 15 feb 2012

These are my links for 13 feb 2012 through 15 feb 2012:

  • Configuring a site-to-site VPN between a Sonicwall and Linux Openswan – Mike A. Leonetti – I have had the fortune of having the challenge to set up a site-to-site (or BOVPN/Branch Office VPN) between a Sonicwall and Openswan. I have searched for other articles that cover this topic and found plenty of information that got me far enough to get some of it working. However, getting the whole thing working took quite some time and I found the guides to be incomplete. So for the sake of even my own remembrance, I will write a mini guide up. Of course I will link all of the guides I've used in a references section.
  • VPN Site-to-Site Openswan x ASA (Cisco) – House of Linux – Ladies and gentleman, today I am going to demonstrate how to integrate technologies from different platforms. It is possible to use Cisco to integrate with Windows and Linux using protocol such as LDAP. In this case the communication between Linux and ASA (Adaptive Security Appliances) is straight. We will only need to check the cryptography configuration and that it, the connection is established.
  • Linux Commands – SkullSecurity – Recon, scanning, exploitation and password from comman line in linux (netcat, metasploit, etc)
  • Windows Commands – SkullSecurity – Recon, scanning and exploitation in a windows command line

Bookmarks for 1 feb 2012 through 2 feb 2012

These are my links for 1 feb 2012 through 2 feb 2012:

  • WP WAF – WordPress Web Application Firewall | Gianni Amato – Ecco la preview di ciò che inizialmente è nato come IDS per monitorare gli attacchi ai miei blog e man mano cresciuto fino a prendere le sembianze di un IPS.

    WP WAF è un plugin per WordPress (leggero e per nulla invasivo) il cui scopo è quello di bloccare ed eventualmente notificare alla propria casella di posta i dettagli dell’attacco alla piattaforma.

    [via http://www.afhome.org/2012/02/01/un-firewall-per-wordpress/ ]

  • Sumo Paint | Online Image Editor – Sumo Paint – online image editor and drawing application
  • PHP and AJAX shell console – Ever wanted to execute commands on your server through php to mimick a shell login? Now you can. I'm calling this file (see below) shell.php and it allows you to run commands on your web server with the same permissions that your php executable has.

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 12 lug 2011 through 13 lug 2011

These are my links for 12 lug 2011 through 13 lug 2011: