bestpractices

Bookmarks for 16 Dic 2015 through 21 Dic 2015

These are my links for 16 Dic 2015 through 21 Dic 2015:

  • 29 questions to ask yourself if you’re in devops | www.rohit.io – A few days ago, I had an opportunity to meet and interact with Mike Place, who works as a developer at Saltstack. We had an interesting conversation about devops and how things work in the valley. Mike explained the growing importance of devops in organizations and the rise of devops as a culture that aims to collaboratively deliver systems into production, reliably and effectively.
  • H2O – the optimized HTTP/2 server – H2O is a new generation HTTP server providing quicker response to users when compared to older generation of web servers. The server takes full advantage of HTTP/2 features including prioritized content serving and server push, promising outstanding experience to the visitors of your web site. [ via http://onethingwell.org/post/135440804989 ]
  • Mattermost – Mattermost is modern communication behind your firewall. As an alternative to proprietary SaaS messaging, Mattermost brings all your team communication into one place, making it searchable and accessible anywhere.

Bookmarks for 6 ago 2015 through 21 set 2015

These are my links for 6 ago 2015 through 21 set 2015:

  • /bin/bash based SSL/TLS tester: testssl.sh – testssl.sh is a free command line tool which checks a server's service on any port for the support of TLS/SSL ciphers, protocols as well as recent cryptographic flaws and more. [ via quasi.dot: https://delicious.com/farmando ]
  • Policy NAT for L2L VPN • LearnIOS.com – I kind of missed the wood for the trees here. The static policy NAT is failing because you are trying to map a network 192.168.0.0 to a single IP address 172.20.n.1. However it's just occured, why are you doing policy NAT for the Internet. I tested in lab and if you do this
  • Encrypted Data Bags on Cloud on AWS – Many customers have asked us how they should handle shared secrets, passwords and other sensitive data in Chef and now we have a good solution. With the release of our stable-v4 stack, we introduced Chef 10 to the platform, and with it came data bags. Now with the 3.0 release of the engineyard gem, we can officially support data bags and encrypted data bags. You may be wondering what data bags are, how data bags work or how to implement data bags. This blog post will walk you through the entire process.
  • How to set disk alignment in Linux | Dirty Cache – As you might know, if disk partitions containing Oracle datafiles are not aligned with the underlying storage system, then some I/O’s can suffer from some overhead as they are effectively translated in two I/O’s. If you want more info, google for “EMC disk alignment” and you’ll find plenty of information, explaining the issue.
  • Add Private Route 53 DNS to your AWS VPC | CloudTrek – A really cool feature of Amazon’s Route 53 DNS Management Service is the private hosted DNS zone.  Basically, you get the ability to manage the DNS in your private VPC without setting up your own DNS infrastructure (yuck!) [ Just a friendly reminder Note 1: the resolution is working only inside the VPC. Note 2: if you don't have the AmazonProvidedDNS in your DHCP-OPTION you won't resolve the zone. Note 3: if you are using linux, you can use as DNS 169.254.169.253 it won't work on windows 2008 Ref: http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_DHCP_Options.html http://docs.aws.amazon.com/Route53/latest/DeveloperGuide/hosted-zones-private.html http://aws.amazon.com/route53/faqs/ ]

Bookmarks for 15 giu 2015 through 16 giu 2015

These are my links for 15 giu 2015 through 16 giu 2015:

Bookmarks for 10 giu 2015 through 15 giu 2015

These are my links for 10 giu 2015 through 15 giu 2015:

  • coderwall.com : establishing geek cred since 1305712800 – Setting up an EC2 instance on AWS used to be as straightforward as provisioning a machine and SSHing into it. However, this process has become a bit more complicated now that Amazon VPC has become the standard for managing machines in the cloud.
  • Set up public and private subnets using AWS VPC — Mike Melnicki’s Blog – This is a step-by-step guide on how to set up public and private subnets for running a service on an internal network within AWS. This guide will also set up a bastion host (or jump host) and show you how you can easily ssh in to the hosts within your private subnet via the bastion host. All of this stuff can be done via the AWS web console, but I thought it would be helpful to show the specific commands and provide some commentary about what is happening on each step.
  • WordPress Checklist (Infographic): 101 Easy Steps to Follow. – It’s a big struggle in remembering the steps involved in setting up a WordPress website. And we soon realized that, there were hardly any checklists that covered all the aspects of WordPress together! That’s when we decided to create “Killer WordPress Checklist” that would cover everything from the pre-launch directions and development process, to SEO, maintenance and security. Honestly, this checklist has worked wonders for us and hope it does for you too!
  • Monitoring EC2 Memory and Disk Usage In CloudWatch Using Custom Metrics | Celingest Blog – Feel the Cloud – With CloudWatch we can track and monitor a lot of metrics across many AWS’s products and set alarms when certain conditions are met. When these alarms are triggered, they can notify us or automate actions such as shrinking or increasing an AutoScaling Group capacity. CloudWatch knows a lot about our EC2 instances’ at the hardware level but it lacks the software’s point of view. In this post we will explain how to use CloudWatch to monitor important resources it can’t monitor by default.

Bookmarks for 28 ott 2014 through 29 ott 2014

These are my links for 28 ott 2014 through 29 ott 2014:

Bookmarks for 1 set 2014 through 2 set 2014

These are my links for 1 set 2014 through 2 set 2014:

  • The Twelve-Factor App – In the modern era, software is commonly delivered as a service: called web apps, or software-as-a-service. The twelve-factor app is a methodology for building software-as-a-service apps that: Use declarative formats for setup automation, to minimize time and cost for new developers joining the project; Have a clean contract with the underlying operating system, offering maximum portability between execution environments; Are suitable for deployment on modern cloud platforms, obviating the need for servers and systems administration; Minimize divergence between development and production, enabling continuous deployment for maximum agility; And can scale up without significant changes to tooling, architecture, or development practices. The twelve-factor methodology can be applied to apps written in any programming language, and which use any combination of backing services (database, queue, memory cache, etc).
  • British Behaviour, British Etiquette | Debrett’s – Our indispensable Guide to British life and manners. From Countryside Rules, Dress Codes, Kilts, Meeting Royalty and Port Etiquette to Apologising, Introductions, Queuing, Reticence, Small Talk and Understatment. British rituals, social occasions, manners and characteristics decoded.
  • A Mailserver on Ubuntu 12.04: Postfix, Dovecot, MySQL – This long post contains a recipe for building a reasonably secure Ubuntu 12.04 mailserver in Amazon Web Services, using Postfix 2.9.1, Dovecot 2.0.19, and MySQL 5.5.22, with anti-spam packages in the form of amavisd-new 2.6.5, Clam AntiVirus 0.97.3, SpamAssassin 3.3.2, and Postgrey 1.3.4. Local users are virtual rather than being system users. Administration of users and domains is achieved through the Postfix Admin 2.3.6 web interface. Webmail is provided by Horde Groupware Webmail Edition 5.04.

Bookmarks for 3 lug 2014 through 8 lug 2014

These are my links for 3 lug 2014 through 8 lug 2014:

  • Top 5 Atom Editor features and tweaks | Grigio.org – un blog critico su Linux Ubuntu, Tecnologia e altro –
  • Hemingway – Hemingway App makes your writing bold and clear. Hemingway highlights long, complex sentences and common errors; if you see a yellow highlight, shorten the sentence or split it. If you see a red highlight, your sentence is so dense and complicated that your readers will get lost trying to follow its meandering, splitting logic — try editing this sentence to remove the red.
  • mpalmer/lvmsync – Have you ever wanted to do a partial sync on a block device, possibly over a network, but were stymied by the fact that rsync just didn't work? Well, fret no longer. As long as you use LVM for your block devices, you too can have efficient delta-transfer of changed blocks.
  • gerrit – Gerrit Code Review – Google Project Hosting – Gerrit is a web based code review system, facilitating online code reviews for projects using the Git version control system. Gerrit makes reviews easier by showing changes in a side-by-side display, and allowing inline comments to be added by any reviewer. Gerrit simplifies Git based project maintainership by permitting any authorized user to submit changes to the master Git repository, rather than requiring all approved changes to be merged in by hand by the project maintainer. This functionality enables a more centralized usage of Git
  • ranger – ranger is a file manager with VI key bindings. It provides a minimalistic and nice curses interface with a view on the directory hierarchy. The secondary task of ranger is to psychically guess which program you want to use for opening particular files.

Bookmarks for 8 ago 2013 through 12 ago 2013

These are my links for 8 ago 2013 through 12 ago 2013:

  • Shuttle | A simple SSH shortcut menu for OS X – A simple SSH shortcut menu for OS X
  • Unix FAQ/shell Index –
  • Portable Shell – Autoconf – When writing your own checks, there are some shell-script programming techniques you should avoid in order to make your code portable. The Bourne shell and upward-compatible shells like the Korn shell and Bash have evolved over the years, and many features added to the original System7 shell are now supported on all interesting porting targets.

Bookmarks for 17 nov 2011 from 23:06 to 23:56

These are my links for 17 nov 2011 from 23:06 to 23:56:

  • Optimizing WordPress with Nginx, Varnish, APC, W3 Total Cache, and Amazon S3 (With Benchmarks) | danielmiessler.com – So I’ve spent the last couple of weeks tweaking my web server stack. I like my site to pop, and I’ve finally achieved a configuration that I’m somewhat happy with.

    In sum, I’m running Varnish as a front-end to Nginx which is running WordPress loaded with the W3-Total-Cache plugin. The W3-Total-Cache plugin is configured to use both memcached as well as Amazon S3 as its CDN. All of this sits on Ubuntu Linux with Linode as my host.

  • A Varnish Primer | danielmiessler.com – Despite the title, this article has nothing to do with painting. Here I'm going to talk a bit about the Varnish Cache — a web application accelerator designed to dramatically improve how quickly your website loads. Varnish works by caching and serving as much content as possible as "static", including dynamic results, e.g. blog posts from a CMS like WordPress.
  • Varnish best practices « Kristian Lyngstol’s Blog – A while ago I wrote about common Varnish issues, and I think it’s time for an updated version. This time, I’ve decided to include a few somewhat uncommon issues that, if set, can be difficult to spot or track down. A sort of pitfall-avoidance, if you will. I’ll add a little summary with parameters and such at the end.
  • Cain Manor | Setup logging for Varnish – So far, we’ve got Var­nish installed and have a cor­rect default.vcl. Now let’s make sure AWStats/JAW­Stats can read them.

    [Or http://www.hping.org/visitors/ 😉 😉 ]