Bookmarks for 16 Mar 2016 through 24 Mar 2016

These are my links for 16 Mar 2016 through 24 Mar 2016:

  • “Reverse Engineering for Beginners” free book
  • Resolve Hardware Status Alert SEL_FULLNESS | Brian Ragazzi – […] I noticed an alert on two UCS B250M2 hosts in the vSphere Client. The alert Name was “Status of other host hardware objects”. This isn’t helpful. To get more information, you have to navigate to the Hardware Status tab of the host properties. Here I saw more information about the alert. It’s cryptically named “System Board 0 SEL_FULLNESS”. […]
  • Network Stack: Cisco ASA Packet Capture – […] The ASA platform has fantastic built-in packet capture capabilities which can come in very handy for troubleshooting issues. I will be demonstrating some of the capabilities using an ASA 5505 running version 9.0(1).Performing a packet capture is done using the capture command from privileged exec mode. […][ Fantastic… I won’t say that ]
  • Sanesecurity ClamAV Malware, Phishing, and Spam Signatures – Sanesecurity produces add-ons signatures to help improve the ClamAV detection rate on Zero-Day malware and even on Zero-Hour malware. Since 2006 we have provided professional quality ClamAV signatures to protect against the following email types: Macro malware, Zip malware, Rar malware, Javascript malware, 7z malware, Phishing, Spear phishing and other types of common emailed malware and spam. Sanesecurity 3rd Party ClamAV signatures can also help prevent TeslaCrypt, Cryptowall, Cryptolocker and other ransomware, who’s source usually starts as a malicious email.
  • Multistage environments with Ansible – Ross Tuck – Ansible has excellent documentation but one thing I was confused about was the best way to store the configuration for multistage projects: say, different passwords for dev, staging, production. This isn’t really covered in the ansible-examples repo because it’s specific to your project and while the documentation has recommendations, it doesn’t spell it out completely (which I need since I’m an idiot).

Bookmarks for 18 lug 2015 through 19 lug 2015

These are my links for 18 lug 2015 through 19 lug 2015:

Bookmarks for 27 dic 2012 through 28 dic 2012

These are my links for 27 dic 2012 through 28 dic 2012:

  • SyBooks Online: Back Up Data to a New Table (on sybase 12.x) – Copy the data from the corrupted table into a new table by creating a dummy table, and copying the old data into the dummy table.
  • Netl33ts: Cisco VPN Troubleshooting Guide – It is important to understand how IPSEC works in order to understand how to troubleshoot a VPN connection. This is a quick overview of IPSEC and is by no means a complete detailed guide.
  • TunnelsUP: Home – Welcome to tunnelsup.com! This site aims to document how to set up, troubleshoot and understand everything to do with Cisco VPN concepts. Here you will find scripts for putting together a tunnel, troubleshooting tips and videos that will teach concepts and demonstrate various VPN technologies.

Bookmarks for 5 dic 2012 through 6 dic 2012

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

Bookmarks for 22 ott 2012 through 23 ott 2012

These are my links for 22 ott 2012 through 23 ott 2012:

  • Can’t SSH into ASA? « Axelilly’s Ponderings – Something strange happened today when I went to SSH into my ASA cluster.

    Upon running ssh I got this error message:

    ssh_exchange_identification: Connection closed by remote host

  • Ubuntu Linux Resources – It's a collection of tutorials designed to help new Ubuntu users, in particular those coming from a Windows-using background.
  • PsPasswd – Systems administrators that manage local administrative accounts on multiple computers regularly need to change the account password as part of standard security practices. PsPasswd is a tool that lets you change an account password on the local or remote systems, enabling administrators to create batch files that run PsPasswd against the computers they manage in order to perform a mass change of the administrator password.

    PsPasswd uses Windows password reset APIs, so does not send passwords over the network in the clear.

Bookmarks for 25 set 2012 through 26 set 2012

These are my links for 25 set 2012 through 26 set 2012:

  • Magento – Optimizing MySQL for Magento (getting better performance) – General Forum – eCommerce Software for Growth – This is more a tips & tricks post based on our recent experiences on www.shoebacca.com

    (original post 2008, updated until 2010)

  • pfSense – Squid + Squidguard / Traffic Shapping Tutorial | HowtoForge – Linux Howtos and Tutorials – In this tutorial I will show you how to setup pfSense 2.0.1 up as a Internet Gateway with Squid Proxy / Squidguard Filtering. I will also show you have to configure some extra features of pfSense like and traffic shapping with squid. This type of configuration would be useful for people who want to set up wireless hot spots or Internet cafe's etc.
  • Speeding up Magento with APC or Memcached – Tutorials – Magebase – We often hear complaints about how Magento is slow and performs poorly. Developers know, however, that performance is relative and that we can do a number of things to speed up a Magento site. This article will focus on configuring and using APC and/or Memcached. We have a resources section at the end of this article with links to more performance optimization techniques.

    The options obviously also depend on the specific hosting arrangement. I will assume for the purposes of this article, that you have control over your hosting server and are able to install the necessary add-ons and make configuration changes to Apache and PHP. If you are on a shared environment, you may have to check with your hosting support if you can apply the tips from this article. But, you know that you should at least be on a VPS if you are running Magento.

  • Speed up Magento with simple config tweaks – At Ionata we’ve been using Magento for quite a while now and the more sites we added, the slower our server seemed to become. Magento is quite a big chunk of software and can take up a lot of resources. However after doing some research and carefully tweaking our server configurations, we were pretty amazed to find performance gains of several hundred percent only by changing some settings.

    In this post you’ll find a summary of settings that can boost the speed and responsiveness of your Magento installation. Optimisation can be done for PHP, MySQL, Apache and Magento itself.

  • Apache 2 Basic Configuration on Unix-Like Systems | Nettuts+ – The Apache server is a service that runs in the background, waiting for requests from clients connecting to the ports it listens to, in order to take action. Apache either responds to those requests, or leaves related notes in its log files. Its behavior is controlled through its configuration, using what is known as directives (among other things). We’ll discuss the most basic directives in this article.

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 2 lug 2012 through 5 lug 2012

These are my links for 2 lug 2012 through 5 lug 2012:

  • [Soekris] Cloning a bootable CF – I've done this a few times on FreeBSD when CF sizes don't match and have found the following sequence to work swimmingly:
  • Clean-MailboxDatabase: Exchange 2007 Help – Use the Clean-MailboxDatabase cmdlet to scan the Active Directory directory service for disconnected mailboxes that are not yet marked as disconnected in the Microsoft Exchange store and update the status of those mailboxes in the Exchange store. This cmdlet is not able to update the Exchange store unless the Microsoft Exchange Information Store service is running and the database is mounted.

    [ Microsoft Sucks !!! ]

  • Gainframe – A computer company that gets the open source community

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 6 giu 2012 through 9 giu 2012

These are my links for 6 giu 2012 through 9 giu 2012:

  • Cisco Router Command Reference – Here is my own notes I have had as a word doc for several years. It's a basic reference for Cisco router commands.
  • 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.
  • wpcomfs – A WordPress.com Filesystem | Joseph Scott – Back in April WordPress.com announced a new REST style API. That got me thinking about writing a filesystem layer to expose that data, along similar lines to the pressfs code I’d written last year.

    It is still rough, and only supports read-only public data, but in the spirit of release early (and often) I’m sharing the code for wpcomfs at https://github.com/josephscott/wpcomfs.

  • 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.