Bookmarks for 9 Dic 2015 from 12:09 to 16:26

These are my links for 9 Dic 2015 from 12:09 to 16:26:

  • One Thing Well | Let’s Encrypt – Let’s Encrypt is now in public beta and offers a command line tool that makes the process of getting and renewing certificates easy, but you have to run it as root, and it’s designed to rewrite your web server’s configuration files. Here’s a selection of alternative tools and clients:
  • Tsung – It can be used to stress HTTP, WebDAV, SOAP, PostgreSQL, MySQL, LDAP and Jabber/XMPP servers. Tsung is a free software released under the GPLv2 license. The purpose of Tsung is to simulate users in order to test the scalability and performance of IP based client/server applications. You can use it to do load and stress testing of your servers. Many protocols have been implemented and tested, and it can be easily extended. It can be distributed on several client machines and is able to simulate hundreds of thousands of virtual users concurrently (or even millions if you have enough hardware …). Tsung is developed in Erlang, an open-source language made by Ericsson for building robust fault-tolerant distributed applications. [ via http://onethingwell.org/post/134852940551/tsung ]
  • Internet Redundancy with ASA SLA and IPSec – PacketU – I’ve seen a lot of examples of redundant Internet connections that use SLA to track a primary connection. The logic is that the primary Internet connection is constantly being validated by pinging something on that ISP’s network and routing floats over to a secondary service provider in the event of a failure. I was recently challenged with how this interacted with IPSec. As a result I built out this configuration and performed some fairly extensive testing.

Bookmarks for 16 giu 2015 through 19 giu 2015

These are my links for 16 giu 2015 through 19 giu 2015:

  • 10 Things You Should Know About AWS – High Scalability – – Ahead of the upcoming 2nd annual re:Invent conference, inspired by Simone Brunozzi’s recent presentation at an AWS Meetup in San Francisco, and collected from a few of my recent Fluxcapacitor.com consulting engagements, I’ve compiled a list of 10 useful time and clock-tick saving tips about AWS.
  • IT Landscape for sysadmins
  • MonitoringScape – The past decade has seen a dramatic shift in how we build applications: clouds, containers and micro-services have displaced the old paradigm of static, monolithic infrastructure. The need for operational visibility has grown tenfold. Thankfully, the monitoring landscape has kept up with the times. We now have a choice of over 100 monitoring tools that provide excellent visibility to every nook and cranny of our IT stack. The modern monitoring landscape has something for everyone: on-prem installations, SaaS applications, open-source tools and high-priced enterprise monitoring suites. However, with so many tools to choose from, the monitoring landscape can be difficult to navigate. MonitoringScape is your guide to the new, exciting world of modern monitoring. Keep in mind that this is a community resource, so your comments and suggestions are very welcome.
  • Provision and Bootstrap AWS instances with Chef – This is continuation of the previous post called Provision with Chef – baby steps. Today we going to talk about the process of bootstrapping instances with Chef used by FastCompany
  • Provision machines with AWS – custom bootsrapper – […] Now I will tell a little more about our instance bootstrap process. Basically at the end of the previous post we discussed tree possible options for automated machine startup: Create different AMI for each server role. Install all binaries into one ami an provide a way to load dynamic configs parts through some custom bootstrap script. Use infrastructure automation framework like Chef or Puppet, which could handle installs and configuration for you. […] [ Note: the article is pre chef-provisioning tool ]

Bookmarks for 29 lug 2014 from 19:48 to 20:16

These are my links for 29 lug 2014 from 19:48 to 20:16:

  • FhGFS Wiki: Tips and Recommendations for Storage Server Tuning – Here are some tips and recommendations on how to improve the performance of your storage servers. As usual, the optimal settings depend on your particular hardware and usage scenarios, so you should use these settings only as a starting point for your tuning efforts.
  • Linux NAS optimizations ← BAFM – […] Well, I recently had to flatten my archive NAS (well only the OS part … *wheeeh*). Since I didn’t have the chance to backup the old settings I had to do everything from scratch … And this time I decided, I wasn’t doing a script but rather the proper way. I spent a while reading through the Internetz about the various settings until I stumbled upon a Frauenhofer Wiki entry. From there I ended up writing those udev-rules and the sysctl configs…[…]
  • Some MySQL security tips | code.openark.org – This is a brief list of security tips for MySQL. It is by no means complete.
  • openarkkit – Common utilities for MySQL – Google Project Hosting – The openark kit provides common utilities to administer, diagnose and audit MySQL databases.
  • outbrain/orchestrator – MySQL replication topology manager/visualizer

Bookmarks for 5 ago 2011 through 8 ago 2011

These are my links for 5 ago 2011 through 8 ago 2011:

  • VMware: VMware ESXi Chronicles: Ops changes part 6 – Quick troubleshooting tips
  • VMware: VMware ESXi Chronicles: After you migrate, tips on working with ESXi… – I’ve recently provided a lot of information on how to migrate to ESXi, so today I thought it would be good to go over some post-migration concerns.  Here's my "top 5" list of important ESXi post-migration considerations.
  • Aggiungere drivers a ESXi 4.1 – Mi è capitato recentemente di preparare un server HP Proliant DL360 G6 per un cliente. La macchina era dotata della classica scheda onboard dual port broadcom, ed era stata comprata inoltre una scheda di rete quad-port HP NC365T, basata sul chipset Intel 82580 MAC.<br />
    <br />
    Purtroppo, nemmeno l’ultimo ESXi 4.1 u1 riconosceva la scheda con i drivers in dotazione.<br />
    <br />
    E’ stato dunque necessario procedere all’installazione dei drivers aggiuntivi, seguendo questa procedura:
  • Oltrelinux.com » Firewall con Linux (2003) – Mi hanno chiesto se era possibile rendere disponibile il pocket sui Firewall che allegammo anni fa (Linux&C. n. 34!!)… ho chiesto l’ok al Direttore ed eccoci qua, il PDF (download, 1.8Mb) è stato rigenerato a partire da quello definitivo che è andato in stampa[…]<br />
    <br />
    Grande Linux&C